Re: [Qgis-user] QGIS uninstalled after GDAL PPA install

[Alex Mandel]

Keep in mind when using PPAs you can easily remove them with ppa-purge
(see #4 on
https://itsfoss.com/how-to-remove-or-delete-ppas-quick-tip/
)

You might need to drop your PPAs, revert back to the default versions of
QGIS, then add back in the repos you need.

Thanks,
Alex

On 2/24/20 9:58 AM, J. M wrote:
> Hi Ismail!
> 
> Many thanks for your advice; I'll check it out. I haven't actually had a
> chance to sit down and try to purge QGIS and start again. Andre was trying
> to help me but I wasn't sure where to start so I haven't tried since I last
> inquired about the process!
> 
> Thanks a lot,
> Jimi.
> 
> On Sun, Feb 23, 2020 at 8:59 AM Ismail Sunni  wrote:
> 
>> Hi Jimi,
>>
>> I have a similar problem. I fix it by reinstalling gdal (libgdal20). I can
>> install QGIS again after that. But, I am not an expert with this package
>> manager thing, so perhaps it can work for you also, or perhaps not :)
>>
>> While trying to fix my problem, I found this
>> https://askubuntu.com/questions/140246/how-do-i-resolve-unmet-dependencies-after-adding-a-ppa
>>  which
>> probably useful for you.
>>
>> Best regards
>>
>> On Thu, Feb 20, 2020 at 1:22 PM J. M  wrote:
>>
>>> Hi again Andre,
>>>
>>> Thanks for that, I more or less get what you mean. The problem is that
>>> when I ran autoremove it came back with almost a gig of dependencies it
>>> wanted to remove, so I cancelled it! QGIS wasn't the last program I
>>> installed so I have no idea how to purge only the dependencies directly
>>> related to the previous version of it I was running. If I run autoremove
>>> and it damages other applications or makes my system unusable then I won't
>>> be able to fix it (I'm only a user, I've got no background in programming).
>>> I read around and people warned strongly against doing this unless you're
>>> sure what you want to remove. How can I be sure I only remove the right
>>> dependencies? Does QGIS have a list or something I can use as a guide?
>>>
>>> If anyone could explain how to use Synaptic package manager then I'd be
>>> really grateful! It must have the most unintuitive interface of any piece
>>> of software I've ever tried to use..
>>>
>>> I edited the source file last time I installed it, so that part is done.
>>> Incidentally, I don't see the 'other Software' tab in the Ubuntu Software
>>> Center, so I just edited it manually. Any idea what that package is called?
>>> I'm happy enough using the terminal if I know (roughly) what I'm doing!
>>>
>>> Thanks a lot team,
>>> Jimi.
>>>
>>> On Wed, Feb 19, 2020 at 8:18 PM Andre Joost 
>>> wrote:
>>>
 Am 18.02.20 um 23:58 schrieb J. M:
> Hi again Andre,
>
> I don't actually understand what to do with this, because I can't run
 'sudo
> apt-get install qgis qgis-plugin-grass' as it keeps giving me the same
> error messages about broken packages.

 Yes, because you have packages that are compiled against a set of
 libraries that does not match your computer. You have to remove,
 autoremove and purge those QGIS packages to force a download from the
 right folder.


> When you say this, I don't get what this link does. I click on it and
 it
> just takes me into a file hierarchy. Are users supposed to obtain the
> downloads from here, or is it purely informative?
> Try
> deb https://qgis.org/ubuntugis bionic main

 That should go into your sources list, to replace the QGIS download
 source you used before. The Ubuntu Software center has a tab for "other
 Software" that holds the same information, so no need to edit the
 sources file manually.

 HTH,
 Andre Joost


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>>
>>
>> --
>> Ismail Sunni
>> Software Engineer
>> ismailsunni.id
>> ismailsunni.wordpress.com
>>
> 
> 
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Re: [Qgis-user] Re-centering Map projection

[Alex Mandel]

The challenge is that the projection parameters need to change as you
recenter the map.

This sounds like maybe you want Google Earth like behavior, or perhaps
and open source alternative like Marble https://marble.kde.org/

I'm not sure what the status of QGIS Globe plugin is...

Thanks,
Alex


On 7/30/19 7:34 AM, Michael Jabot wrote:
> I would like to use the Equal Earth projection for a series of
> activities for schools. 
> 
> What I would like to do is to recenter the map as we move from continent
> to continent as a focus.
> 
> I have tried a number of things but have not had any success.
> 
> Thank you in advance for any help anyone can offer
> 
> Mike
> 
> 
> *
> Michael Jabot, Ph.D.
> Professor, Science Education
> US Partner - /GLOBE Program/
> /NASA Earth Ambassador
> /Director, /Institute for Research in Science Teaching/
> /Chancellor's Award Recipient for Excellence in Research
> /The State University of New York at Fredonia
> 
> 
>  
> 716.320-0189 (Google Voice)
> ja...@fredonia.edu 
> E250 Thompson Hall
> 280 Central Avenue
> Fredonia, NY  14063
> *
> 
>        

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Re: [Qgis-user] QGIS3 macOS GRASS issues

[Alex Mandel]

Also seems the move from python2 to python3 may be related. Keep an eye
on this bug too https://github.com/OSGeo/homebrew-osgeo4mac/issues/452

Thanks,
Alex

On 12/20/18 22:39, Alex Mandel wrote:
> Stace,
> 
> FYI, your post got buried as reply to a different thread, so some people
> might miss it.
> 
> Looking at the error, it sounds like a classic python problem where
> someone used spaces sometimes and tabs other times. What type of file is
> grass74?
>> TabError: inconsistent use of tabs and spaces in indentation
>> File "/Applications/QGIS3.app/Contents/MacOS/grass/grass74"
> 
> I don't have a Mac so I can't test myself but I have some ideas at least
> on that error. Also looks like it's be reported the bug
> https://issues.qgis.org/issues/20705
> 
> Thanks,
> Alex
> 
> On 12/20/18 16:12, Mr. Stace D Maples wrote:
>> Has anyone managed to get a working install of QGIS3, with GRASS 
>> successfully working properly?
>>
>> Could you share how you did it?
>>
>> I literally just installed QGIS3 according to the ReadMe on a MacBook Pro, 
>> fresh out of the box. First thing on the machine other than the OS.
>>
>> Still doesn’t work.
>>
>> Is no-one else having this issue? I’ve been trying since QGIS3 came out and 
>> I’ve never been able to get a properly working install.
>>
>> Yes, I’ve tried the Lutra Consulting installers, now, as well. Grass doesn’t 
>> work on those, either.
>>
>>
>> Errors below:
>>
>> ```
>> Processing algorithm…
>> Algorithm 'v.voronoi' starting…
>> Input parameters:
>> { '-a' : False, '-l' : False, '-s' : False, '-t' : False, 
>> 'GRASS_MIN_AREA_PARAMETER' : 0.0001, 'GRASS_OUTPUT_TYPE_PARAMETER' : 0, 
>> 'GRASS_REGION_PARAMETER' : 
>> '-8475108.938998612,-8453077.913650313,4990639.536944103,5011374.619624854 
>> [EPSG:3857]', 'GRASS_SNAP_TOLERANCE_PARAMETER' : -1, 'GRASS_VECTOR_DSCO' : 
>> '', 'GRASS_VECTOR_LCO' : '', 'input' : 
>> 'Point?crs=EPSG:3857&field=id:integer(10)&uid={dcf082ae-d9f8-4b71-b91a-d9c3cb4b6ea3}',
>>  'output' : 
>> '/var/folders/f3/0prmkq7962795yfpwsmvh210gq/T/processing_e202206dfa1e4e1d9038f698007327ac/a2d53ae1fce54452a416bb024df6665f/output.gpkg',
>>  'smoothness' : 0.25, 'thin' : -1 }
>>
>> g.proj -c proj4="+proj=merc +a=6378137 +b=6378137 +lat_ts=0.0 +lon_0=0.0 
>> +x_0=0.0 +y_0=0 +k=1.0 +units=m +nadgrids=@null +wktext +no_defs"
>> v.in.ogr min_area=0.0001 snap=-1.0 
>> input="/var/folders/f3/0prmkq7962795yfpwsmvh210gq/T/processing_e202206dfa1e4e1d9038f698007327ac/9dd436b010ba45d89ad65ddd32ae13d3/input.shp"
>>  output="vector_5c1c2e331b6372" --overwrite -o
>> g.region n=5011374.619624854 s=4990639.536944103 e=-8453077.913650313 
>> w=-8475108.938998612
>> v.voronoi input=vector_5c1c2e331b6372 smoothness=0.25 thin=-1 
>> output=outputca662649e0e54d1d8bfdf9c18ce2b8c9 --overwrite
>> v.out.ogr -c type="auto" input="outputca662649e0e54d1d8bfdf9c18ce2b8c9" 
>> output="/var/folders/f3/0prmkq7962795yfpwsmvh210gq/T/processing_e202206dfa1e4e1d9038f698007327ac/a2d53ae1fce54452a416bb024df6665f/output.gpkg"
>>  format="GPKG" --overwrite
>> File "/Applications/QGIS3.app/Contents/MacOS/grass/grass74", line 1697
>> sys.stdout.write("%s\n" % grass_version)
>> ^
>> TabError: inconsistent use of tabs and spaces in indentation
>> File "/Applications/QGIS3.app/Contents/MacOS/grass/grass74", line 1697
>> sys.stdout.write("%s\n" % grass_version)
>> ^
>> TabError: inconsistent use of tabs and spaces in indentation
>> Execution completed in 0.56 seconds
>> Results:
>> {'output': > {'sink':/var/folders/f3/0prmkq7962795yfpwsmvh210gq/T/processing_e202206dfa1e4e1d9038f698007327ac/a2d53ae1fce54452a416bb024df6665f/output.gpkg,
>>  'createOptions': {'fileEncoding': 'System'}}>}
>>
>> Loading resulting layers
>> The following layers were not correctly 
>> generated./var/folders/f3/0prmkq7962795yfpwsmvh210gq/T/processing_e202206dfa1e4e1d9038f698007327ac/a2d53ae1fce54452a416bb024df6665f/output.gpkgYou
>>  can check the 'Log Messages Panel' in QGIS main window to find more 
>> information about the execution of the algorithm.
>>
>> ```
>>
>> In F,L&T,
>> Stace Maples
>> Geospatial Manager
>> Stanford Geospatial Center
>> @mapninja
>> staceymaples@G+
>> Skype: stacey.maples
>> 214.641.0920
>>
>> Find GeoData: https://earthworks.stanford.edu
>> Get GeoHelp: https://gis.stanford.edu/
>>
>> "I have a map of the United States... actual size.
>> It says, "Scale: 1 mile = 1 mile."
>> I spent last summer folding it."
>> -Steven Wright-
>>
> \
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Re: [Qgis-user] QGIS3 macOS GRASS issues

[Alex Mandel]

Stace,

FYI, your post got buried as reply to a different thread, so some people
might miss it.

Looking at the error, it sounds like a classic python problem where
someone used spaces sometimes and tabs other times. What type of file is
grass74?
> TabError: inconsistent use of tabs and spaces in indentation
> File "/Applications/QGIS3.app/Contents/MacOS/grass/grass74"

I don't have a Mac so I can't test myself but I have some ideas at least
on that error. Also looks like it's be reported the bug
https://issues.qgis.org/issues/20705

Thanks,
Alex

On 12/20/18 16:12, Mr. Stace D Maples wrote:
> Has anyone managed to get a working install of QGIS3, with GRASS successfully 
> working properly?
> 
> Could you share how you did it?
> 
> I literally just installed QGIS3 according to the ReadMe on a MacBook Pro, 
> fresh out of the box. First thing on the machine other than the OS.
> 
> Still doesn’t work.
> 
> Is no-one else having this issue? I’ve been trying since QGIS3 came out and 
> I’ve never been able to get a properly working install.
> 
> Yes, I’ve tried the Lutra Consulting installers, now, as well. Grass doesn’t 
> work on those, either.
> 
> 
> Errors below:
> 
> ```
> Processing algorithm…
> Algorithm 'v.voronoi' starting…
> Input parameters:
> { '-a' : False, '-l' : False, '-s' : False, '-t' : False, 
> 'GRASS_MIN_AREA_PARAMETER' : 0.0001, 'GRASS_OUTPUT_TYPE_PARAMETER' : 0, 
> 'GRASS_REGION_PARAMETER' : 
> '-8475108.938998612,-8453077.913650313,4990639.536944103,5011374.619624854 
> [EPSG:3857]', 'GRASS_SNAP_TOLERANCE_PARAMETER' : -1, 'GRASS_VECTOR_DSCO' : 
> '', 'GRASS_VECTOR_LCO' : '', 'input' : 
> 'Point?crs=EPSG:3857&field=id:integer(10)&uid={dcf082ae-d9f8-4b71-b91a-d9c3cb4b6ea3}',
>  'output' : 
> '/var/folders/f3/0prmkq7962795yfpwsmvh210gq/T/processing_e202206dfa1e4e1d9038f698007327ac/a2d53ae1fce54452a416bb024df6665f/output.gpkg',
>  'smoothness' : 0.25, 'thin' : -1 }
> 
> g.proj -c proj4="+proj=merc +a=6378137 +b=6378137 +lat_ts=0.0 +lon_0=0.0 
> +x_0=0.0 +y_0=0 +k=1.0 +units=m +nadgrids=@null +wktext +no_defs"
> v.in.ogr min_area=0.0001 snap=-1.0 
> input="/var/folders/f3/0prmkq7962795yfpwsmvh210gq/T/processing_e202206dfa1e4e1d9038f698007327ac/9dd436b010ba45d89ad65ddd32ae13d3/input.shp"
>  output="vector_5c1c2e331b6372" --overwrite -o
> g.region n=5011374.619624854 s=4990639.536944103 e=-8453077.913650313 
> w=-8475108.938998612
> v.voronoi input=vector_5c1c2e331b6372 smoothness=0.25 thin=-1 
> output=outputca662649e0e54d1d8bfdf9c18ce2b8c9 --overwrite
> v.out.ogr -c type="auto" input="outputca662649e0e54d1d8bfdf9c18ce2b8c9" 
> output="/var/folders/f3/0prmkq7962795yfpwsmvh210gq/T/processing_e202206dfa1e4e1d9038f698007327ac/a2d53ae1fce54452a416bb024df6665f/output.gpkg"
>  format="GPKG" --overwrite
> File "/Applications/QGIS3.app/Contents/MacOS/grass/grass74", line 1697
> sys.stdout.write("%s\n" % grass_version)
> ^
> TabError: inconsistent use of tabs and spaces in indentation
> File "/Applications/QGIS3.app/Contents/MacOS/grass/grass74", line 1697
> sys.stdout.write("%s\n" % grass_version)
> ^
> TabError: inconsistent use of tabs and spaces in indentation
> Execution completed in 0.56 seconds
> Results:
> {'output':  {'sink':/var/folders/f3/0prmkq7962795yfpwsmvh210gq/T/processing_e202206dfa1e4e1d9038f698007327ac/a2d53ae1fce54452a416bb024df6665f/output.gpkg,
>  'createOptions': {'fileEncoding': 'System'}}>}
> 
> Loading resulting layers
> The following layers were not correctly 
> generated./var/folders/f3/0prmkq7962795yfpwsmvh210gq/T/processing_e202206dfa1e4e1d9038f698007327ac/a2d53ae1fce54452a416bb024df6665f/output.gpkgYou
>  can check the 'Log Messages Panel' in QGIS main window to find more 
> information about the execution of the algorithm.
> 
> ```
> 
> In F,L&T,
> Stace Maples
> Geospatial Manager
> Stanford Geospatial Center
> @mapninja
> staceymaples@G+
> Skype: stacey.maples
> 214.641.0920
> 
> Find GeoData: https://earthworks.stanford.edu
> Get GeoHelp: https://gis.stanford.edu/
> 
> "I have a map of the United States... actual size.
> It says, "Scale: 1 mile = 1 mile."
> I spent last summer folding it."
> -Steven Wright-
> 
\
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Re: [Qgis-user] [QGIS-Developer] QGIS Processing "R" Provider -- 3.x beta available

[Alex Mandel]

Nyall,

I can confirm the plugin loads without error on QGIS 3.4.1, Ubuntu 16.04
I'll need to find an R script or two to test with.

Thanks this is very appreciated,
Alex

On 11/15/18 14:34, Nyall Dawson wrote:
> Hi lists,
> 
> Just a quick announcement that the Processing provider for R scripts
> in QGIS, which was dropped for QGIS 3.0, is now available as a beta
> for QGIS 3.4. It's now published as a standalone plugin which must be
> manually installed (together with manual installation of the
> underlying R software!).
> 
> This is a pre-release beta version only -- the script syntax may
> change in the final release, so be warned that you may need to update
> scripts as a result. But the good news is that this should be 100%
> compatible with Processing R scripts from 2.x, with no change required
> to the scripts!
> 
> To reflect its beta status, the plugin is currently only available via
> manual download from GitHub, and isn't (yet) available via the
> standard QGIS plugin repository. To install, download the zip release
> from https://github.com/north-road/qgis-processing-r/releases/tag/v0.0.2,
> and then install via the Plugins -> Manage and Install Plugins >
> Install from ZIP tab. After the plugin is installed you'll need to
> enable the provider via the Settings > Options > Processing >
> Providers > R > Activate checkbox.
> 
> Testing feedback is sought and very welcome -- just file issues on
> https://github.com/north-road/qgis-processing-r/issues with a detailed
> description of any issues you encounter.
> 
> This release was made possible thanks to a funding grant by QGIS.org.
> 
> Regards,
> Nyall
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Re: [Qgis-user] Vector with more than xyzm

[Alex Mandel]

On 11/6/18 12:54, Idan Miara wrote:
> Hi,
> 
> What would be the OGR or the portable way for handling vector data with
> more than 4 dimensions?
> i.e. xyz+time+velocity+acceleration for each vertex.
> 
> Kind regards,
> Idan
> 
> 

Attribute tables. Make XYZ geometries and put all your other stuff into
attributes.

Enjoy,
Alex
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Re: [Qgis-user] Idea: Crowd-sourcing a batch-georeferencer plugin withQR code ?

[Alex Mandel]

I think you undervalue what's been done. See the code base, and
re-use/adapt whatever components you want. You can run your own custom
version.

https://github.com/fieldpapers

Could even integrate it with QGIS as a plugin, or flip that around and
use QGIS server to create the tile layer used in the background.

-Alex

On 02/03/2018 11:49 AM, Bernd Vogelgesang wrote:
> Thanx guys for the hint,
> but this is a "serious" project ;)
> 
> My detail maps I have to produce are scattered around an area of ca. 200
> sqkm, I want to have the freedom to design everything I want to with
> overview maps for finding the spot, inserting already existing data etc.
> So fieldpapers.org is nice, but doesn't bring me any convenience in my
> QGIS-workflows.
> 
> Cheers
> Bernd
> 
> Am 03.02.2018, 19:57 Uhr, schrieb Clifford Snow :
> 
>> Let me echo Brent Fraser suggestion to look at Field Papers,
>> fieldpaper.org. They accomplish what you are looking for. Each page
>> >of the field paper has a QR code for georeferencing. Not only that
>> they can be loaded in as a baselayer in OSM editors. The site
>> >fieldpapers.org has a simple walk through on how to go from nothing
>> to pages loaded in for digitizing.
>>
>> If you are going to use Field Papers with different surveyors from
>> those who digitize the results, make sure you have a common
>> >understanding of symbols and notation the surveyors use. Otherwise
>> digitizing may be limited.
>>
>> Hope this helps.
>>
>> Clifford
>>
>> On Sat, Feb 3, 2018 at 10:12 AM, Brent Fraser
>>  wrote:
> Bernd,
>>> Have you looked at Field Papers?  http://fieldpapers.org/
>>> Best Regards,
>>> Brent Fraser
>>> From: "Bernd Vogelgesang" 
>>> Sent: Saturday, February 3, 2018 9:22 AM
>>> To: "qgis-user@lists.osgeo.org" 
>>> Subject: [Qgis-user] Idea: Crowd-sourcing a batch-georeferencer
>>> plugin withQR code ?
>>> Hi folks,
>>>
>>> I am facing a project, where I will produce hundreds of field maps with
>>> atlas from lots of small locations, which get printed for surveyors to
>>> fill in observations in the field.
>>> Getting them returned, I need to scan them, georeference them and
>>> finally
>>> digitize the features found.
>>> Alone thinking of the process of georeferencing all those scans (which
>>> might only have tiny offsets and shifts because of lousy scanners)
>>> make me
>>> wish to have chosen another profession ...
>>>
>>> So here is the idea:
>>> An atlas plugin, that will automatically distribute minimum 6
>>> cross-hairs
>>> (or other automatically identifiable features) around your atlas canvas.
>>> A QR-Code is generated, which holds the coordinates, EPSG and name of
>>> the
>>> atlasfeature, and which is put in some restricted area of the
>>> composer map.
>>> Maps are printed, processed and scanned afterwards.
>>> Batch-import all scans.
>>> Another function reads the QR-Code of the scan, identifies to locator
>>> features, gives them the proper coordinates and automatically creates
>>> georeferenced tiff/png/jpg with the name of the atlas feature.
>>>
>>> Sounds like a dream, but I think there should be enough dreamers
>>> around to
>>> make this one true.
>>>
>>> Any ideas if this will work, and how to start this endeavour?
>>>
>>> Cheers,
>>> Bernd
>>>
>>>
>>> -- 
>>> Bernd Vogelgesang
>>> Siedlerstraße 2
>>> 91083 Baiersdorf/Igelsdorf
>>> Tel: 09133-825374
>>> ___
>>> Qgis-user mailing list
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>>
>>
>>
>> --@osm_seattle
>> osm_seattle.snowandsnow.us
>> OpenStreetMap: Maps with a human touch
> 
> 
> 
> 
> 
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Re: [Qgis-user] Web menu item disappeared

[Alex Mandel]

Do you have any Web plugins activated. I think the menu visibility is
tied to plugins being activated.

Thanks,
Alex

On 04/15/2017 05:59 PM, Grant Boxer wrote:
> I tried installing QGIS v2.18.6 but then the SCP plugin failed to work. I
> have re-installed v2.18.5 but now my Web menu item has disappeared.
> 
>  
> 
> I have tried uninstall and re-install without success. Can anyone suggest
> how to fix this problem?
> 
>  
> 
> Grant Boxer
> 
> Perth, Western Australia
> 
>  
> 
> 
> 
> 
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Re: [Qgis-user] QGIS airlines: connecting airports with lines ?

[Alex Mandel]

It's not super hard.
1. Download the data
2. Import it to GIS (probably comes in text file, so some conversion
will be needed.)
3. Densify the lines, or create lines between the pairs of airports.
Point 2 Lines plugin should help. You need to make sure to add nodes
along the way (Densify), otherwise the lines won't curve nicely. There's
a little trial and error to get them dense enough without making to many
nodes.

I used this data set for a cartography class 5+ years ago, it's a fun
one. You can see a couple of examples here
http://geography.ucdavis.edu/gallery/classes/geo-290-f10-cartography

Enjoy,
Alex

On 03/25/2017 05:06 PM, Falk Huettmann wrote:
> Hi there,
> 
> I have a question, if I may:
> 
> at the following website
> 
> http://openflights.org/data.html
> 
> there are these maps of airlines, connecting airports.
> 
> http://openflights.org/demo/openflights-routedb-2048.png
> 
> The actual map and code can apparently be bought,
> but instead I am looking for a self-made solution (I do not like how people
> cash in on a GIS bottleneck).
> 
> Would you perhaps know how that map can be done, e.g.
> in QGIS or related in an OpenGIS framework or code?
> 
> Thanks so much; kind regards
>  Falk
> 
> 
> 
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Re: [Qgis-user] How to edit repetitive data in QGIS

[Alex Mandel]

All those solutions are possible good options. To answer the direct 
question in case you need to know, you have turn on editing (Toggle 
Edit) of a layer before you can edit, and this is only available on some 
data format (so make sure you import your data to Spatialite, Shapefile 
or another editable format, osm files are not directly editable)

http://docs.qgis.org/2.14/en/docs/user_manual/introduction/qgis_gui.html#edit

Enjoy,
Alex

On 12/15/2016 12:32 AM, Karl-Magnus Jönsson wrote:

Hi!
Instead of editing the lines or attributes with all that work you can do this 
in the styling. In the labels tab of the layer properties there are rendering 
options. There is a checkbox for merging connected lines to avoid duplicate 
labels. Hope this works.

Karl-Magnus Jönsson

-Ursprungligt meddelande-
Från: Qgis-user [mailto:qgis-user-boun...@lists.osgeo.org] För Raymond Nijssen
Skickat: den 15 december 2016 08:58
Till: qgis-user@lists.osgeo.org
Ämne: Re: [Qgis-user] How to edit repetitive data in QGIS

Hi Charlotte,

You can use the "dissolve" tool for merging features that have value(s) in common. In 
this case the field "name" contains that value.

Go:
Vector >> Geoprocessing tools >> Dissolve...
Remove the check mark at "Dissolve all (do not use field)"
Add the field "name" to unique ID fields list Run

This worked for me. Only drawback is that all roads without a name were merged 
together. If you mind that, you can select and remove them before running the 
dissolve algorithm.

Good luck,
Raymond




On 15-12-16 07:07, Matt Boyd wrote:

Can you select the features you want by a function using the same
street name, then Edit - merge selected features.

On 15 Dec 2016 08:40, "Charlotte Wolter" mailto:techl...@techlady.com>> wrote:

Hello, all,

I created a query for data from OpenStreetMap using
overpassturbo.eu . I needed major street,
so used the expression highway=primary. The area was a large section
of Los Angeles, about 1/6th of the city, the area called South Bay.
I got the steeets I need, no problem. But, I also got the
street names repeating over and over, because the streets are broken
into segments by changes, such as a bridge or a change in speed
limit, etc., etc.
I am looking for a way to solve this issue, such as editing
the data to remove the names from some of these segments. I have
opened the data in the "Attributes Table," but I can't seem to edit
it there (which would be handy). So, if QGIS does not support
editing a data file, is there some other way to do it?
Thanks!

Charlotte Wolter



Charlotte Wolter
927 18th Street Suite A
Santa Monica, California
90403
+1-310-597-4040 
techl...@techlady.com 
Skype: thetechlady


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Re: [Qgis-user] Antarctic polar stereographic graticules (composer)

[Alex Mandel]

You have to do it this way in the Composer, the whole point of a a
geographic grid is to put it on a non-geographic projection map, for
navigation purposes.

This is clearly a bug.

-Alex

On 06/02/2016 05:51 AM, Nicolas Cadieux wrote:
> Hi, 
> I am trying to understand.  You said " I had some Antarctic polar 
> stereographic data and when applying a  
> WGS-84 long-lat grid in map composer" . 
> That means you have 2 CRS.  One in Polar stereographic and the graticule 
> are in WGS84. You are therefore reprojecting on the fly. That is always a bad 
> idea when mixing two very different CRS as this sometimes creates crazy 
> things like missing lines, exploding line and odd looking stuff. 
> To solve this, save everything in the same CRS and make sure the grid in the 
> map composer and the project are in the same CRS as all the data.  
> "As you say, the other option is to generate a vector grid and densify, 
> however you then lose the label function that you have in the composer." 
> You can probably create a transparent grid in the map composer but use opaque 
> labels. 
> If I am not understanding properly, send a screen shot or a a zipped project. 
> Nicolas 
> On Jun 2, 2016 01:36, "Lester Anderson [via OSGeo.org]   " 
>  wrote: 
> 
>   Hi Nicolas, The grid I have is already projected in an Antarctic South 
> polar, so that was not the issue with on the fly projection. I just fail to 
> understand why the graticules in map composer seem odd in Polar views. As you 
> say, the other option is to generate a vector grid and densify, however you 
> then lose the label function that you have in the composer. Coastline data 
> reproject fine on both South and North Polar views. Will keep investigating 
> this one Lester On 1 June 2016 at 17:40, Nicolas Cadieux < [hidden email] 
> > wrote: Hi, 
> When crossing the equator, 0 or 180 degrees, you will always have difficulty 
> reprojecting shapes on the fly.  That is what you are doing.  Your project is 
> in polar but you are creating a grid in WGS84.  
> That grid is being reprojected on the polar project.  That will always happen 
> when you try mix a more "global" CRS and a "local" 
> projection. 
> Make sure everything is in the same CRS. (Save as.. change CRS).  
> Do not reprojection anything including the grids in the map composer. 
> If that does not work, you could always create the grid that you need (You 
> may need to densify the shape).  Save it in the correct CRS. You could then 
> probably add a transparent grid in the map composer.  This way, you would get 
> the coordinates around the map but not the problems with the grid. 
> Hope this helps. 
> Nicolas 
> 
> On Jun 1, 2016 11:14 AM, Lester Anderson < [hidden email] > wrote: Hi 
> Nicolas, The problem is not so much with the grid as that displays fine. The 
> issue crops up with the map composer, and even with the grid as WGS-84 the 
> same problem persists. Looked at both North and South polar views and the 180 
> graticule is always missing irrespective of the increment used. The latitude 
> lines do not change and are clear line segments; these should be smoother. 
> Data that are in UTM and with WGS-84 graticules look fine (smooth latitude 
> lines). Is there an issue with Polar views and graticules? Lester On 1 June 
> 2016 at 11:41, Nicolas Cadieux < [hidden email] > wrote: Hi, 
> Try saving the layer in WGS-84. Then make sure the project is also in the 
> same projection.  It can help sometimes to make a spatial index. 
> Keep me posted. 
> Nicolas 
> On Jun 1, 2016 05:35, "Lester Anderson [via OSGeo.org]" < 
> [hidden email] > wrote: 
> 
>   Hello,
> I had some Antarctic polar stereographic data and when applying a
> WGS-84 long-lat grid in map composer it generated most of the
> longitude lines (180 missing), and very crude latitude lines (clearly
> visible straight line segments).
> Is there any way to improve the latitude lines?
> Lester
> Tested in 2.10, 2.12, 2.14
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2016-06-02

Thread
Alex Mandel

For smoother lines you can use my Lines Graticule (pyGraticule) maker in
in the Processing toolbox, scripts from online.

As for the 180, I had the same issue. I can't get any lines to show up
between 170 <-> -170, though my polygon renders correctly through that area.

This seems to be some sort of projection issue. Have you tried saving
the graticule to the polar projection and loading it. I recall in the
past projection on the fly doesn't always work right.

-Alex

On 06/01/2016 08:14 AM, Lester Anderson wrote:
> Hi Nicolas,
> 
> The problem is not so much with the grid as that displays fine. The issue
> crops up with the map composer, and even with the grid as WGS-84 the same
> problem persists. Looked at both North and South polar views and the 180
> graticule is always missing irrespective of the increment used. The
> latitude lines do not change and are clear line segments; these should be
> smoother.
> 
> Data that are in UTM and with WGS-84 graticules look fine (smooth latitude
> lines). Is there an issue with Polar views and graticules?
> 
> Lester
> 
> 
> 
> On 1 June 2016 at 11:41, Nicolas Cadieux 
> wrote:
> 
>> Hi,
>>
>> Try saving the layer in WGS-84. Then make sure the project is also in the
>> same projection.  It can help sometimes to make a spatial index.
>> Keep me posted.
>>
>> Nicolas
>> On Jun 1, 2016 05:35, "Lester Anderson [via OSGeo.org] " <[hidden email]
>> > wrote:
>>
>> Hello,
>>
>> I had some Antarctic polar stereographic data and when applying a
>> WGS-84 long-lat grid in map composer it generated most of the
>> longitude lines (180 missing), and very crude latitude lines (clearly
>> visible straight line segments).
>>
>> Is there any way to improve the latitude lines?
>>
>> Lester
>>
>> Tested in 2.10, 2.12, 2.14
>>
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Re: [Qgis-user] Extra lines to origin


2016-03-15

Thread
Alex Mandel

On 03/15/2016 11:02 AM, Adam Dershowitz wrote:
> I have a DWG fie that was provided to me.  If I use any of a few viewers it 
> appears to be correct.  I then used TeighaFileConverter to convert it to a 
> DXF file, and again it appears to be correct.  But, when I import it into 
> qgis, the LineStrings generally have the correct shape, but also have extra 
> lines that go over to the origin.
> My DWG shape file is somewhat away from the origin.  So, that means that  
> there a whole bunch of extra lines connecting my object over to the origin 
> when viewed in QGIS.
> I tried a few different DXF version of the export with no change.  And, a few 
> other viewers that don’t seem to have that problem.
> Does anyone have any suggestions for why that might be happening?  Or how I 
> can prevent it?  Or, as a work around is there any way to just filter out all 
> the points that are near the origin?  
> This first occurred in QGIS 2.12, but I just upgraded to 2.14 and confirmed 
> the same problem.  I am using Mac OS 10.11.3.
> 
> Thanks,
> 
> 
> --Adam
> 

It sounds a little like invalid geometries, or geometries that cross the
edges to wrap around to the other side (a common issue with data at the
dateline for example).

Try running the geometry checking tools.

Thanks,
Alex

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Re: [Qgis-user] Virtual rasters and relative paths


2016-03-11

Thread
Alex Mandel

On 2016-02-25 07:25, Richard Burkmar wrote:
> I created a virtual raster from a number of raster files (jpegs) all in one
> folder through the interface available from Raster>Miscellaneous>Build
> Virtual Raster. I saved the VRT file to the same folder as the raster
> images. I open as a VRT and all is well.
> 
> But if I copy the folder to another location, the VRT breaks when I open
> it. So I looked at the VRT file in Notepad++ and, sure enough, the
> pathnames to all the raster files are full pathnames instead of relative
> pathnames which is why moving the folder breaks it.
> 
> I assumed that if I saved the VRT in, or in a parent folder of, the folder
> with the raster images, then the paths to the rasters would be relative. I
> can't see an option to explicitly specify relative pathnames. I tried
> saving the VRT in the parent folder of the rasters but still it saves full
> pathnames. I tried specifying rasters using both 'all visible' and 'all in
> folder' method with the same result.
> 
> The actual paths in the VRT file look like this:
> 
>  relativeToVRT="0">E:\ExerciseData\Raster\PM\pm4.jpeg
> 
> It looks like the relativeToVRT attribute should be set to 1 to make
> relative paths, but how do I specify that from the
> Raster>Miscellaneous>Build Virtual Raster interface?
> 
> I'm using QGIS 2.12.3 from the standalone installer for Windows 64 bit.
> 
> Rich
> 
>

I just checked http://www.gdal.org/gdalbuildvrt.html it does not appear
that an option to make relative paths is exposed by the tool. I think we
should file an enhancement ticket with gdal for the feature. That would
be the best long term solution.

Short term seems like changing that value to relative and then doing a
find and replace on the path strings with a text editor (or if you want
to get fancy python or sed).

Bummer,
Alex

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Re: [Qgis-user] R in QGIS on OSX using Kyngchaos build


2016-03-05

Thread
Alex Mandel

I've been meaning to play with this too. I assumed it used rpy2 but
maybe that is not the case.

Looking at
https://docs.qgis.org/testing/en/docs/training_manual/processing/r_intro.html
https://docs.qgis.org/2.8/en/docs/user_manual/processing/3rdParty.html

There's nothing about external dependencies other than having R and
configuring the path to the binary.

The pages do however list the author of that module, Matteo Ghetta

I poked into the processing source code:
https://github.com/qgis/QGIS/blob/master/python/plugins/processing/algs/r/RUtils.py

And it looks like it sends R scripts out as R CMD via python's system
call methods, so like calling R on the command-line.

Maybe moving this over to the developer list will get a more formal
response, with better troubleshooting.

Thanks,
Alex

On 03/05/2016 10:09 AM, Pieter du Plooy wrote:
> William
> 
> Thank you so very much for your hard work!
> 
> Pieter
> 
> On Sat, Mar 5, 2016 at 7:55 PM, William Kyngesburye 
> wrote:
> 
>> I don't know what Processing needs to work with R.
>>
>> I just posted QGIS 2.14.
>>
>>> On Mar 5, 2016, at 11:06 AM, Pieter du Plooy 
>> wrote:
>>>
>>> Hi William
>>>
>>> I was in fact referring to Processing plugin.
>>>
>>> I installed rgdal, but that did not make a difference.
>>>
>>> Bye the way, if I can be presumptuous, when are you planning to release
>> 2.14?
>>>
>>> Pieter
>>>
>>> On Sat, Mar 5, 2016 at 6:42 PM, William Kyngesburye <
>> wokl...@kyngchaos.com> wrote:
>>> Sorry I didn't reply to your earlier email.
>>>
>>> I think it depends on how your scripts interact with R.  I have an R
>> plugin for the GDAL framework.  I also have an R plugin for the GEOS
>> framework, but that's for an old version of R.
>>>
>>> You can run R scripts from the Processing plugin, but I don't know how
>> that links R and QGIS data unless it's through GDAL.
>>>
>>> There is also rpy2 for using R from python, supposed to be a simple
>> instal with pip, but requires Xcode tools to compile.  I have a package for
>> an old R version, but I could update it.
>>>
 On Mar 5, 2016, at 6:28 AM, Pieter du Plooy 
>> wrote:

 Hi guys

 I would like to use R scripts in  QGIS 2.12 from Kyngchaos and am
>> unable to.

 I have installed the R package from r-project, and all  dependencies.

 When I run the R scripts that I have downloaded, I get the missing
>> dependency problem.

 How do I go about rectifying it?

 Regards

 Pieter
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>>>
>>> -
>>> William Kyngesburye 
>>> http://www.kyngchaos.com/
>>>
>>> "Time is an illusion - lunchtime doubly so."
>>>
>>> - Ford Prefect
>>>
>>>
>>>
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>> -
>> William Kyngesburye 
>> http://www.kyngchaos.com/
>>
>> "We can die but once, and that once we must die.  To be always fearing,
>> then, would not avert it, and would make life miserable."
>>
>> - Tarzan, on death

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Re: [Qgis-user] Problems with QGIS2leaf


2016-02-19

Thread
Alex Mandel

It sounds like you have an accented character in the name of your layer.
This is a bug, but a limitation you might just need to work around for
now. Try renaming your layers, including their original files names
before running the tool.

Also file a bug with the developers of the plugin. I believe Qgis2Web is
aimed to replace that plugin so maybe give that a shot.

Thanks,
Alex


On 02/19/2016 10:31 AM, Alejandro Chamizo de Castro wrote:
> Dear colleagues,
> 
> I'm using QGIS2leaf plugin with two layers, a vector and a raster.
> 
> When I run the algorithm, I obtain the following error, Any sugestion?
> 
> 
> 1 Traceback (most recent call last):
> 
> File
> "C:/Users/alechamizo/.qgis2/python/plugins\qgis2leaf\qgis2leafdialog.py",
> line 297, in export2leaf
> 
> qgis2leaf_exec(self.outFileName, self.basemapName, self.basemapMeta,
> self.basemapAddress, self.width, self.height, self.extent,
> self.full_screen, self.layer_list, self.visible, self.opacity,
> self.encode2JSON,self.createcluster, self.webpage_name,
> self.webmap_head,self.webmap_subhead, self.legend,self.locate,self.address,
> self.precision, self.labels, self.labelshover, self.matchCRS, self.selected)
> 
> File
> "C:/Users/alechamizo/.qgis2/python/plugins\qgis2leaf\qgis2leaf_exec.py",
> line 238, in qgis2leaf_exec
> 
> in_raster = str(i.dataProvider().dataSourceUri())
> 
> UnicodeEncodeError: 'ascii' codec can't encode character u'\xe1' in
> position 93: ordinal not in range(128)
> 
> 
> 
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Re: [Qgis-user] About Commercial use of QGIS


2016-01-17

Thread
Alex Mandel

On 01/17/2016 08:18 AM, Tejas Godbole wrote:
> Respected Sir / Madam,
> 
> I am Tejas Godbole from Pune. I just now started working as a Freelancer.
> 
> I have approached by the client & client asks me for a quotation.
> 
> So, I want to know about commercial use of QGIS. I am intend to charge the
> client but for that I want to know the terms and conditions of commercial
> use QGIS.
> 
> waiting for reply.
> 
> Thanks & Regards,
> 

There are no restrictions on how you can use QGIS and there no license fees.

The only time the GPL license comes in is if you distribute QGIS to your
clients.

Thanks,
Alex
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Re: [Qgis-user] GeoServer online


2016-01-04

Thread
Alex Mandel

On 01/04/2016 03:33 AM, "Sebastian Teßmer" wrote:
> Hello everybody,
> 
> and a Happy New Year!
> 
> I have a question for GeoServer. I use it as a Web server for my geodata.
> With "localhost" everything works great, but does anyone know how I
> the data online can call? I need an explanation on how I publish a Web server 
> on 
> the web?
> 
> Thank you for your help!
> Sebastian
> 
>

1. If this is about Geoserver, please ask on the Geoserver mailing list
http://geoserver.org/comm/
2. You need a Domain/Domain Name Server/Service (DNS) so that a url
points to your computer from the web (complicated if you don't have a
static ip for your computer, or your internet provide prevents hosting
on personal accounts). This is a general topic with lots of examples on
the internet to learn from. The basics are you pay for a domain, and
tell it the ip of your machine.

Enjoy,
Alex

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Re: [Qgis-user] Who is in charge of qgisforum.org ?


2015-12-30

Thread
Alex Mandel

Whois says:
Roi Hojgaard
Hovedstaden - Copenhagen

I'll note, QGIS used to have a forum. PSC retired it in favor of
http://gis.stackexchange.com/

There was a constant debate, since many QGIS experts were only on the
mailing lists (and wanted to stay there) and not the forums.

-Alex

On 12/30/2015 01:23 AM, Luigi Pirelli wrote:
> I remember amds where guys from Denmark and Faroe islands... I agree,
> as forum it is used but site is old and the blog seems heavily
> hacked.
> 
> cheers
> 
> Luigi Pirelli
> 
> **
> * Boundless QGIS Support/Development: lpirelli AT boundlessgeo DOT com
> * LinkedIn: https://www.linkedin.com/in/luigipirelli
> * Stackexchange: http://gis.stackexchange.com/users/19667/luigi-pirelli
> * GitHub: https://github.com/luipir
> * Mastering QGIS:
> https://www.packtpub.com/application-development/mastering-qgis
> **
> 
> 
> On 30 December 2015 at 10:13, Lene Fischer  wrote:
>> Hi
>>
>> I just found this http://www.qgisforum.org
>>
>> A very nice page – bud sadly with a very few answers.
>>
>>
>>
>> I think that if you set up a forum, you also have the responsibility to keep
>> it updated.
>>
>>
>>
>> Regards
>>
>> Lene Fischer
>>

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Re: [Qgis-user] Projection like Google Earth?


2015-12-17

Thread
Alex Mandel

Not a solution but a related interesting way to think of it.
http://cartography.oregonstate.edu/demos/AdaptiveCompositeMapProjections/

-Alex

On 12/17/2015 04:30 AM, Joris Hintjens wrote:
> Thanks Paolo and Alex.
> 
> Alex: I remember now that I had installed Globe plugin, but (on my mac) it 
> crashes. SO I threw it away.
> For now, I can see no advantage inWorldwind, compared to G.E.
> 
> 
> The link Paolo send, is very interesting. I played with it and came to a 
> certain level of satisfaction. I realize now that, for creating a map that 
> you can pan and tilt around endlessly, as you can in Google earth, one would 
> have to adapt the projection wit every pan/tilt of the map. Maybe some day, 
> when I am older and wiser, I’ll find a solution in a script/plugin.
> 
> My aim is to make a web-based map with my data in (pseudo) 3D. For now, I’ll 
> have to export to GoogleEarth. 
> 
> Have fun!
> 
> Joris
> 
> 
>> Op 16 dec. 2015, om 18:39 heeft Paolo Craveri  het 
>> volgende geschreven:
>>
>> Hi Joris 
>>
>> 2015-12-16 17:11 GMT+01:00 Joris Hintjens > >:
>> Is it possible to create a map like the globe in Googel earth, where the map 
>> is an infinite that can be turned around instead of panned?
>>
>> AFAIK I think not, unless you use globe plugin
>>  
>> is is a question of the right projection?
>>
>> Yes, azimuth orthographic projections  is a suitable projection for making 
>> ''globe''  like Google earth. 
>>
>> take a look at this:
>>
>> http://polemic.nz/2014/11/21/nz-azimuth-orthographic/ 
>> 
>>
>> I've just tried the proposed python script; It works perfectly!
>>
>> ciao
>>
>> -- 
>> -- 
>> Paolo Craveri 
> 
> 

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Re: [Qgis-user] Generalize slope map in QGIS


2015-12-09

Thread
Alex Mandel

In the Processing toolbox under GRASS:
r.resamp.stats
https://grass.osgeo.org/grass64/manuals/r.resamp.stats.html

Enjoy,
Alex

On 12/09/2015 04:53 PM, Eddison Araya wrote:
> Hello friends (as) I made a map of terrain slopes percentage.
> 
> The map has a pixel size of 10 * 10 meters and desire "generalize to
> minimum mapping units (UMC) of 1 hectare and remove all pixels that have
> very tiny image.
> 
> As I can make that generalization UMC 1 hectare in QGIS?
> 
> attached original image here:
> https://www.dropbox.com/sh/hxovug8siw2778v/AABebBYEMmkMRQnu08FstZ8pa?dl=0
> 
> Thank you!!
> 
> 
> Eddison
> 
> 
> 
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Re: [Qgis-user] Project file format


2015-11-25

Thread
Alex Mandel

On 11/25/2015 05:05 AM, James Keener wrote:
> If I wanted to embark on a fools errand of storing a project in a database, 
> in a structured manner, is there a spec for the project file format, or is it 
> what it is?
> 
> 

Please ask this question on the qgis-developer mailing list (and other
similar questions).

I believe there has been some work in the past on storing project data
in sqlite/spatialite and postgis already. I know at least styles have
been done.

Thanks,
Alex

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Re: [Qgis-user] Interpolation with breaklines


2015-11-20

Thread
Alex Mandel

On 11/20/2015 02:56 AM, Neumann, Andreas wrote:
>  
> 
> Hi, 
> 
> At my workplace we have to generate terrain models (contour lines) from
> irregularly input points with heights. We also have break lines (e.g.
> walls) that we would like to take into account during interpolation. 
> 
> While there are quite a few interpolation available in GRASS or SAGA, I
> can't find any interpolation methods that also take break lines. 
> 
> I found http://grasswiki.osgeo.org/wiki/TIN_with_breaklines  - which
> seems to do what I want, but is a separate module and builds on a
> "triangle" executable and is not distributed with GRASS. 
> 
> I have therefore two questions: 
> 
> 1. Is this the only FOSSGIS option we have, if breaklines should be
> considerered during interpolation? Or are there alternatives? 
> 
> 2. Did someone use v.traingle. this in a production environment? Does it
> work properly? I am just asking before I try to install it. 
> 
> 3. If this works fine - can we try to distribute it with OSGeo4W? 
> 
> Thanks, 
> 
> Andreas 

https://grass.osgeo.org/grass70/manuals/addons/v.surf.icw.html

"Inverse cost weighting is like inverse distance weighted (IDW)
interpolation, but uses cost instead of shortest Euclidean distance. In
this way solid barriers and molasses zones may be correctly taken into
account."


There may also be a way in R, or a more general method that could be
achieved with existing tools used in a slightly different way as
described here
http://gis.stackexchange.com/a/33678

-Alex
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Re: [Qgis-user] Projections Not Recognized


2015-11-15

Thread
Alex Mandel

This might be a question for the Developer list. I think you'll need to
dig into the code that does the proj reading/matching to figure out how
it translates the wkt to prj strings/db parameters to match.

Thanks,
Alex

On 11/15/2015 02:43 PM, Clifford Snow wrote:
> Alex,
> You got me thinking that I have the wrong projection. epsg.io lead me to
> 2926 and 2927.
> 
> However, both of those are in the QGIS. Assuming that QGIS uses the .prj
> file for the reference, what fields does it match?
> 
> QGIS does operate correctly using the custom projection. However, for
> someone new, like me, it helps knowing the projections.
> 
> Thanks,
> Clifford
> 
> On Sun, Nov 15, 2015 at 2:23 PM, Clifford Snow 
> wrote:
> 
>>
>> On Sun, Nov 15, 2015 at 1:38 PM, Alex Mandel 
>> wrote:
>>
>>> http://epsg.io/102348
>>
>>
>> I didn't catch the HARN. And the 10348 and 10349 are both in meters. I'm
>> getting NAD83_HARN in feet which doesn't match the definition of 10349. And
>> 10749 is in feet but not with HARN. So maybe it isn't in the table.
>>
>>
>> --
>> @osm_seattle
>> osm_seattle.snowandsnow.us
>> OpenStreetMap: Maps with a human touch
>>
> 
> 
> 
> 
> 
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Re: [Qgis-user] Projections Not Recognized


2015-11-15

Thread
Alex Mandel

Those projections are not identical. NAD83 and NAD83_HARN differ, the
later having a higher precision do to corrections made to NAD83 in the
1990s.

Looking in QGIS I do see StatePlane HARN
EPSG:102348 for North
EPSG:102349 for South

Here's the prj I get making a fresh layer from EPSG:102348
PROJCS["Lambert_Conformal_Conic",GEOGCS["GCS_GRS 1980(IUGG,
1980)",DATUM["D_unknown",SPHEROID["GRS80",6378137,298.257222101]],PRIMEM["Greenwich",0],UNIT["Degree",0.017453292519943295]],PROJECTION["Lambert_Conformal_Conic"],PARAMETER["standard_parallel_1",47.5],PARAMETER["standard_parallel_2",48.73],PARAMETER["latitude_of_origin",47],PARAMETER["central_meridian",-120.8],PARAMETER["false_easting",50],PARAMETER["false_northing",0],UNIT["Meter",1]]

Hmm the standard parllel doesn't match.
So one of these isn't right.
http://epsg.io/102348

Maybe the definition in the EPSG/srs is wrong.

Anyone have a source to confirm what the correct parameters should be.

Alex

On 11/15/2015 11:57 AM, Clifford Snow wrote:
> Local governmental agencies in Washington State use the projection,
> Washington State Plane North and State Plane South. I believe they are
> ESRI: 102748 and 107349. When opened in QGIS they appear as USER:11.
> These reference systems are included in the list (srs.db). I'm wondering
> why QGIS doesn't match.
> 
> According to Spatial Reference the .prj is:
> 
> PROJCS["NAD_1983_StatePlane_Washington_South_FIPS_4602_Feet",GEOGCS["GCS_North_American_1983",DATUM["D_North_American_1983",SPHEROID["GRS_1980",6378137,298.257222101]],PRIMEM["Greenwich",0],UNIT["Degree",0.017453292519943295]],PROJECTION["Lambert_Conformal_Conic"],PARAMETER["False_Easting",1640416.7],PARAMETER["False_Northing",0],PARAMETER["Central_Meridian",-120.5],PARAMETER["Standard_Parallel_1",45.84],PARAMETER["Standard_Parallel_2",47.34],PARAMETER["Latitude_Of_Origin",45.34],UNIT["Foot_US",0.30480060960121924]]
> 
> A typical shapefile .prj file shows:
> 
> PROJCS["NAD83_HARN_Washington_South_ftUS",GEOGCS["GCS_NAD83(HARN)",DATUM["D_North_American_1983_HARN",SPHEROID["GRS_1980",6378137,298.257222101]],PRIMEM["Greenwich",0],UNIT["Degree",0.017453292519943295]],PROJECTION["Lambert_Conformal_Conic"],PARAMETER["standard_parallel_1",47.34],PARAMETER["standard_parallel_2",45.84],PARAMETER["latitude_of_origin",45.34],PARAMETER["central_meridian",-120.5],PARAMETER["false_easting",1640416.667],PARAMETER["false_northing",0],UNIT["Foot_US",0.30480060960121924]]
> 
> Any suggestions on how to fix so QGIS recognizes these shapefiles
> would be appreciated.
> 
> 
> Thanks,
> 
> Clifford
> 
> 
> 
> 
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Re: [Qgis-user] QGIS 2.12 packaging for Ubuntu 14.04?


2015-10-30

Thread
Alex Mandel

I think Jurgen decided to keep ubuntugis at the LTS and push the newer
ones on qgis.org, since you can only have 1 version in a given repo.

Both are built against ubuntugis dependencies.
But to get 2.12 you have to have both the qgis.org ubuntugis repo and
the ubuntugis-unstable repo.

This doesn't seem super clear or intuitive, so suggestions welcome on
how to make this easier for people are welcome.

-Alex

On 10/30/2015 03:54 AM, G. Allegri wrote:
> I see the nightly contains QGIS 2.12 up to 42e9dbe commit. Anyway,
> ubuntugis should contain the latest release, i.e. commit cd9d6450 (tag
> final_2_12_0).
> 
> giovanni
> 
> 2015-10-30 11:49 GMT+01:00 G. Allegri :
> 
>> AFAICS the ubuntugis dist doesn't contain QGIS 2.12 for Ubuntu Trusty.
>> Is the packaging going to be created or will it be available for Precise
>> only?
>>
>> Trusty is an LTS so IMHO it should be mantained with up to date QGIS
>> releases.
>>
>> giovanni
>>
>> --
>> Giovanni Allegri
>> http://about.me/giovanniallegri
>> Gis3W - http://gis3w.it
>> Ikare - http://ikare.it
>> Twitter: https://twitter.com/_giohappy_
>> blog: http://blog.spaziogis.it
>> GEO+ geomatica in Italia http://bit.ly/GEOplus
>>
> 
> 
> 
> 
> 
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Re: [Qgis-user] GEOJSON Marker colours


2015-10-30

Thread
Alex Mandel

That said, there are some potential workarounds. If this is for a web
map you could 1. save the style to SLD, then reapply the SLD with your
web js code or 2. Save the style information into columns of your
attribute table and the use code to rextract those components to be
useful. The QGIS2leaf and QGIS2Web plugins have a little something like
that going on in them.

Enjoy,
Alex

On 10/30/2015 07:41 AM, David Fawcett wrote:
> Phil,
> 
> Both shapefile and GeoJSON are just data formats, and they don't encode any
> styling or marker information.  In QGIS, after you export to GeoJSON and
> add it to your project, you can copy the styling from the shapefile
> instance of that layer to your GeoJSON layer.
> 
> That styling will only exist in that project, not the data files.
> 
> David.
> 
> On Fri, Oct 30, 2015 at 1:11 AM, Phil (The Geek) Wyatt <
> p...@wyatt-family.com> wrote:
> 
>> Hi Folks,
>>
>>
>>
>> Can anyone give me any clues on how I can export from a shapefile to
>> GEOJSON and maintain my marker colours?
>>
>>
>>
>> Cheers - Phil

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Re: [Qgis-user] Fwd: QGIS hardware recommendations?


2015-10-21

Thread
Alex Mandel

On 10/21/2015 07:55 AM, Nicolas Cadieux wrote:
> Hi,
> I think this message never made it to the server.  Apologies if it did.
> 
> Nicolas Cadieux M.Sc.
> 
> -- Forwarded message --
> From: Nicolas Cadieux 
> Date: Oct 19, 2015 14:57
> Subject: QGIS hardware recommendations?
> To: Qgis Users List 
> Cc: 
> 
>> Hi,
>>
>> We are building new (Windows 10) computers for QGIS and I was wondering if 
>> there is any new hardware consideration to think of? I don't want a gamer 
>> style debate on Intel vs AMD or nvidia vs ATI but I am wondering if the QGIS 
>> CODE is evolving toward a better support of things like nvidia's Cuda 
>> support for calculations or rendering.
>>
Get an SSD for holding datasets and databases while working with them.

>> First off for CPU we are considering the latest i7 on the z170 or X99 
>> chipsets. (We are not looking at zeon's for now. These are desktop and not 
>> workstations.) I know the differences between both chipsets so no comments 
>> are needed here.
>>
>> Any reason we should go with AMD (apart from the fact that they have more 
>> core (currently slower) which could help in muti-threaded  rendering).  Is 
>> there an advantage, code wise, to using amd64 cpu's?
>>
Nope, most GIS is still primarily single threaded so an i7 would perform
better.

>> Video cards: any nvidia Cuda support in the planning?  Has anything been 
>> optimized for AMD/ATI or NDVIA?  Should I be looking for a particular 
>> version of OpenGL or DirectX? (I guess QGIS uses OpenGL???) How about when 
>> we use GLobe or Qgis2threejs?  Any future consideration needed? 
>>

Not that I've seen actually come forward. Maybe for the 3D stuff there
might be something, look more into WebGL and 3js recommendations. I
don't think favoring a particular gpu would be helpful to the general
QGIS audience.

>> Memory wise, we will get as much as the budget allows...
>>

+1 , of course with the chipsets you're picking I think that maxes at 32 GB.

>> Thanks for any comments.  Again, I am looking for comments more from a QGIS 
>> CODE perspective and future orientations, not a gamer hardware perspective.
>>
>> Cheers!
>>
>> Nicolas
>>

-Alex

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Re: [Qgis-user] Incredibly slow performance using QGIS v2.10


2015-08-30

Thread
Alex Mandel

I agree try Nicolas' suggestions first as they are easiest.

My suggestion of Spatialite or Postgis was to also move the dissolve
into a different tool as you would use the Dissolve function inside
those DB formats with a query.
SELECT stuff, dissolve(geom)
FROM layer
GROUP BY yourdissolvecolumn


Thanks,
Alex

On 08/30/2015 02:42 PM, Nicolas Cadieux wrote:
> Hi, 
> I suggest to take the joined saved .shp file and use the Saga version of 
> dissolve.  Using the Spatialite (click on layer and save shp as 
> Spatialite) file could make things faster but the problem here is, to my 
> knowledge, not the file format.  It's the QGIS dissolve.  See 
> below. 
> http://gis.stackexchange.com/questions/79850/merge-large-number-of-polygons-using-qgis
>  
> Saga (processing plugin) will ask for a field for this dissolve.  Select 
> the zip field or create a new Field with a dummy variable if you want to 
> dissolve all.  (Use the field calculator if you which to  create 
> this dummy variable).  If you see slivers, you can set a tolerance level 
> (unit will be the unit of your CRS). 
> Good luck! 
> Nicolas Cadieux M.Sc. 
> Les Entreprises Archéotec inc.  
> 8548, rue Saint-Denis Montréal H2P 2H2 
> Téléphone: 514.381.5112  Fax: 514.381.4995 
> www.archeotec.ca 
> On Aug 30, 2015 16:47, "Ken Walenga [via OSGeo.org]" 
> <ml-node+s1560n5221860...@n6.nabble.com> wrote: 
> 
>   I have replied to your questions in-line, below: On Sun, Aug 30, 2015 
> at 11:03 AM, Alex Mandel < [hidden email] > wrote: <blockquote 
> style="border-left:2px solid #cc;padding:0 1em" 
> style="margin:0 0 0 0.8ex;border-left:1px #ccc 
> solid;padding-left:1ex">Kenneth, 
> 
> How many records, and how much memory do the files take on disc? The Zip.shp 
> file contains 41,342 rows and takes up ca. 400KB on disk. The Zip2Terr.csv 
> file contains 87,632 rows and occupies 4KB on disk. <blockquote 
> style="border-left:2px solid #cc;padding:0 1em" 
> style="margin:0 0 0 0.8ex;border-left:1px #ccc 
> solid;padding-left:1ex">
> 
> Are you joining the SHP and the CSV and then doing Dissolve? Yes. 
> <blockquote style="border-left:2px solid #cc;padding:0 1em" 
> style="margin:0 0 0 0.8ex;border-left:1px #ccc 
> solid;padding-left:1ex"> Did you 
> save the joined layer to a new file? Yes <blockquote 
> style="border-left:2px solid #cc;padding:0 1em" 
> style="margin:0 0 0 0.8ex;border-left:1px #ccc 
> solid;padding-left:1ex">Does this shapefile have a spatial 
> index created? Yes <blockquote style="border-left:2px solid 
> #cc;padding:0 1em" style="margin:0 0 0 0.8ex;border-left:1px 
> #ccc solid;padding-left:1ex"> Is the topology of the polygons clean 
> (are there self 
> intersections, lots of slivers, or overlaps? It is clean. There don't 
> appear to be any slivers. <blockquote style="border-left:2px solid 
> #cc;padding:0 1em" style="margin:0 0 0 0.8ex;border-left:1px 
> #ccc solid;padding-left:1ex">
> 
> Other than saving the intermediate to a file, the next suggestion is to 
> use Spatialite or Postgis databases. Can you elaborate a little on what's 
> involved in using one of the two named databases? Do I simply need to read 
> the .csv file into Spatiallite or Postgres? <blockquote 
> style="border-left:2px solid #cc;padding:0 1em" 
> style="margin:0 0 0 0.8ex;border-left:1px #ccc 
> solid;padding-left:1ex">
> 
> Keep in mind, that an operation like this is single threaded. 
> 
> Thanks, 
> Alex 
> 
> On 08/30/2015 09:53 AM, Ken Walenga wrote: 
> > Looking for help. I have an unsimplified ZIP.shp file and want to create 
> my 
> > own custom boundary files for territories which are a collection of zip 
> > code areas. I bring in the Zip.shp file and  join to a Zip2Terr.csv file 
> on 
> > the Zip field. When I try to dissolve the TERR_NBR field, the dissolve 
> > process can take longer than 2 whole days (!). Any ideas on ways to 
> speed 
> > it up? I have tried using a simplified Zip.shp file, but that results in 
> > way less than satisfactory boundary files with gaps, etc. Might this be 
> a 
> > problem with v2.10? Is it possible that I would see better performance 
> > using an earlier rev? 
> > 
> > I am using v2.10 of QGIS, running on a Win7 HP destop machine, quad 
> core, 8 
> > GB RAM. 
> > 
> > Thanks. 
> > 
> >  
> > Kenneth Walenga 
> > Commercial BI & Reporting 
> > Genentech, A Member of the Roche Group 
> > US CommOps - USMA Data Servi



Re: [Qgis-user] Incredibly slow performance using QGIS v2.10


2015-08-30

Thread
Alex Mandel

Kenneth,

How many records, and how much memory do the files take on disc?

Are you joining the SHP and the CSV and then doing Dissolve? Did you
save the joined layer to a new file? Does this shapefile have a spatial
index created? Is the topology of the polygons clean (are there self
intersections, lots of slivers, or overlaps?

Other than saving the intermediate to a file, the next suggestion is to
use Spatialite or Postgis databases.

Keep in mind, that an operation like this is single threaded.

Thanks,
Alex

On 08/30/2015 09:53 AM, Ken Walenga wrote:
> Looking for help. I have an unsimplified ZIP.shp file and want to create my
> own custom boundary files for territories which are a collection of zip
> code areas. I bring in the Zip.shp file and  join to a Zip2Terr.csv file on
> the Zip field. When I try to dissolve the TERR_NBR field, the dissolve
> process can take longer than 2 whole days (!). Any ideas on ways to speed
> it up? I have tried using a simplified Zip.shp file, but that results in
> way less than satisfactory boundary files with gaps, etc. Might this be a
> problem with v2.10? Is it possible that I would see better performance
> using an earlier rev?
> 
> I am using v2.10 of QGIS, running on a Win7 HP destop machine, quad core, 8
> GB RAM.
> 
> Thanks.
> 
> 
> Kenneth Walenga
> Commercial BI & Reporting
> Genentech, A Member of the Roche Group
> US CommOps - USMA Data Services
> "Every moment matters.  Making IT happen."
> (O) 650-467-6855
> (F) 650-467-2570
> (M) 650-438-4505
> 
> 
> 
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Re: [Qgis-user] Conversion from World to Geo coordinates


2015-08-12

Thread
Alex Mandel

On 08/11/2015 01:39 PM, Tudorache, Marian wrote:
> Hi everyone,
> 
> I currently have some GIS data using the world format x and y where those 
> were obtained by approximate the Earth with a modified GRS80 datum where the 
> Semi-major axis = Semi-minor axis = 6381711.641389.
> I would like to know if there is a plugin in QGIS which can convert 
> automatically back to lat and long of any standard or custom datum.
> 
> Thank you,
> Marian
> 

You can define custom projections in the Settings. Then any tools such
as reprojection/Save as can be used to convert it to any other projection.

-Alex

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Re: [Qgis-user] QGIS 2.10 + GRASS - changes in behaviour?


2015-08-11

Thread
Alex Mandel

On 08/11/2015 02:23 PM, Carlos Grohmann wrote:
> Hi all,
> 
> After upgrading to 2.10 (running kyngschaos pkgs on OS X), I noticed that
> the "add grass raster layer" and "add grass vector layer" button from the
> GRASS plugin are gone. Is this a bug or there were changes in 2.10 related
> to GRASS layers?
> 
> Suddenly I can't even visualize my GRASS layers anymore..
> 
> best
> 

Well known issue, downgrade back to previous version you had working if
you need GRASS layers working in QGIS or the QGIS+GRASS Plugin.

Expect QGIS 2.12 to likely work with GRASS 7.
http://www.gissula.eu/qgis-grass-plugin-crowdfunding/

Longer answer the QGIS+GRASS plugin is being rewritten to support GRASS
7 which is fairly new. 2.10 is somewhere in no mans land where it
doesn't work with either 6 or 7 for the plugin (The grass functions in
the toolbox are related only indirectly, so those working combos differ).

Thanks,
Alex

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Re: [Qgis-user] Georeferencing Vector Files


2015-08-10

Thread
Alex Mandel

On 08/10/2015 12:49 PM, Springfield Harrison wrote:
> Hello Paolo,
> 
> Good that you can report a different experience, hopefully a better one than 
> mine.  My operating system is W7 and I have many years of experience in GIS, 
> mostly Manifold.
> 
> I have received several suggestions for georeferencing vector files -
> 
>   * Vector Bender, VectorGeoreference plug-ins.  Both of these failed due to
> missing dependencies.  Although the programs are experimental, should not
> the underlying essential files be in place?
>   * Grass V.rectify, v.transform.  I believe these operate through GRASS.  I
> have gone down so many rabbit holes lately that some of these details are
> beginning to blur.  I believe the problem here was using GRASS itself. 
> There seems to be a steep learning curve, particularly with the definition
> of a mapset.  The whole thing fell apart when the process for defining a
> Group (why?) required a raster file for a purely vector process.  I have
> stuck in a dummy raster file and will try again eventually.  This has been
> hugely time-consuming with nothing to show for it. 
> 
> My main complaints are twofold,
> 
>   * missing dependencies.  From extensive traffic on this list over the past 
> few
> weeks, the whole QGIS environment seems to be rife with missing support
> files.  I understand that this is open source, etc. but surely all the
> essential pieces should be in place.  When I attempt to install Vector
> Bender, it reports missing dependencies and packs up.  Why doesn't it just
> install the missing dependencies, it seems to know what and where they 
> are?

Missing dependencies for Plugins are python libraries that do not ship
with QGIS as they are not QGIS specific and are set by plugin authors
outside the main QGIS build system. Sometime down the road we hope to be
able to pull such libraries as needed during plugin install...

On Windows also note that QGIS/OSGeo4w ship with their own Python
separate from the system to avoid conflicts. You have to install extra
python libs into this QGIS specific python.

Nathan has a good blog post about it, maybe someone can recall the link,
I can't seem to find it.

-Alex




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Re: [Qgis-user] Georeferencing Vector Files


2015-08-09

Thread
Alex Mandel

ogr2ogr is a command line tool, Terminal/Shell on Mac/Linux, OSGeo4w
shell on Windows.

Supposedly the Vector Georef plugin wraps this functionality into QGIS.

-Alex

On 08/09/2015 12:08 AM, Springfield Harrison wrote:
> Right, but where is org2org?  I've looked in many menu items, help, etc.
> to no avail.
> 
> Sorry to be a bit thick but how is it accessed?
> 
> Also, GRASS has v.transform and v.rectify but starting a new GRASS
> mapset fails with no reason given.
> 
> Great tools but why are they so hard to access?
> 
> Thanks, cheers . . . .   Spring Harrison
> 
> 
> 
> At 08-08-2015 23:20 Saturday, Alex Mandel wrote:
>> Save the whole map, it's on the main File menu, it just saves the
>> current canvas.
>>
>> If you already have a list of gcps you can skip that step
>>
>> Example
>> http://gis.stackexchange.com/questions/107298/process-to-georeference-corners-of-vector-file
>>
>>
>>
>> Enjoy,
>> Alex
>>
>> On 08/08/2015 07:26 PM, Springfield Harrison wrote:
>> > Hello Alex,
>> >
>> >Further to my last, for Vector Save As, I couldn't find any
>> > option to save it as a raster file. Is there some other place to look?
>> >
>> >Thanks again, Cheers . . . . . . . . Spring Harrison
>> >
>> >
>> >
>> >
>> > At 08-08-2015 12:07 Saturday, Alex Mandel wrote:
>> >> On 08/06/2015 11:08 AM, Springfield Harrison wrote:
>> >> > Hello All,
>> >> >
>> >> > Is there a tool/plugin for georeferencing vector files to an
>> existing
>> >> > projected layer?
>> >> >
>> >> > I'm intending to bring in property survey drawings that have only
>> local
>> >> > coordinates but projected coordinates (UTM) are available for some
>> >> corners.
>> >> >
>> >> > Thank you . . . .
>> >> >
>> >> > Cheers . . . . . Springfield Harrison
>> >> > Samsung Tab 4
>> >> >
>> >> >
>> >>
>> >> My trick, is convert the vector an image in QGIS (Save Image)
>> >> Georeference the image, saving the control point list out to a file.
>> >> You can then use these control points (gcps) with ogr2ogr to transform
>> >> the original vector.
>> >>
>> >> -Alex
>> >
>> > ___
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>> > Qgis-user@lists.osgeo.org
>> > http://lists.osgeo.org/mailman/listinfo/qgis-user
> 

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Re: [Qgis-user] Georeferencing Vector Files


2015-08-08

Thread
Alex Mandel

Save the whole map, it's on the main File menu, it just saves the
current canvas.

If you already have a list of gcps you can skip that step

Example
http://gis.stackexchange.com/questions/107298/process-to-georeference-corners-of-vector-file


Enjoy,
Alex

On 08/08/2015 07:26 PM, Springfield Harrison wrote:
> Hello Alex,
> 
> Further to my last, for Vector Save As, I couldn't find any
> option to save it as a raster file.  Is there some other place to look?
> 
> Thanks again, Cheers . . . . . . . . Spring Harrison
> 
> 
> 
> 
> At 08-08-2015 12:07 Saturday, Alex Mandel wrote:
>> On 08/06/2015 11:08 AM, Springfield Harrison wrote:
>> > Hello All,
>> >
>> > Is there a tool/plugin for georeferencing vector files to an existing
>> > projected layer?
>> >
>> > I'm intending to bring in property survey drawings that have only local
>> > coordinates but projected coordinates (UTM) are available for some
>> corners.
>> >
>> > Thank you . . . .
>> >
>> > Cheers . . . . .  Springfield Harrison
>> > Samsung Tab 4
>> >
>> >
>>
>> My trick, is convert the vector an image in QGIS (Save Image)
>> Georeference the image, saving the control point list out to a file.
>> You can then use these control points (gcps) with ogr2ogr to transform
>> the original vector.
>>
>> -Alex
> 
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Re: [Qgis-user] Georeferencing Vector Files


2015-08-08

Thread
Alex Mandel

On 08/06/2015 11:08 AM, Springfield Harrison wrote:
> Hello All,
> 
> Is there a tool/plugin for georeferencing vector files to an existing
> projected layer?
> 
> I'm intending to bring in property survey drawings that have only local
> coordinates but projected coordinates (UTM) are available for some corners.
> 
> Thank you . . . .
> 
> Cheers . . . . .   Springfield Harrison
> Samsung Tab 4
> 
> 

My trick, is convert the vector an image in QGIS (Save Image)
Georeference the image, saving the control point list out to a file.
You can then use these control points (gcps) with ogr2ogr to transform
the original vector.

-Alex

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Re: [Qgis-user] Any working GRASS in QGIS available? - Processing Bug?


2015-08-02

Thread
Alex Mandel

Ah but we're closer to finding a solution with all those details. It may
be fixable in Processing, which can be pushed to the plugin repo for
update any time.

Passing this along to devs who might have enough information now.

Thanks,
Alex

On 08/02/2015 03:07 PM, Bernd Vogelgesang wrote:
> Am 02.08.2015, 22:44 Uhr, schrieb Alex Mandel :
> 
>> After some brief testing, my OSGeoLive 8.5 VM with QGIS 2.6 and
>> Processing 2.9.3, GRASS 7 works.
>>
>> My QGIS 2.8, GRASS 6/7, Processing 2.10.1 does not.
> 
> Gave Windows another try: Removed everything, and installed the simple
> install OSGEO4W setup.
> QGIS 2.10.1 with Processing 2.10.1 and GRASS 6 working.
> 
> switched back to Ubuntu, cause of a bug in the modeler version of GDAL
> Dissolve Polygons (which is crucial for me).
> https://hub.qgis.org/issues/13174
> 
> Ubuntu: Now that I installed 2.8 with the debian repository only (so
> without ubuntis depencies), my GRASS 6 works (sorted out another error,
> that GRASS takes a column name "OR" from shape as an sql-command or
> sth), update to Processing 2.10.1 worked as well.
> 
> The drawback, no SAGA, which might come handy cause the now available
> algos do not really do what I expect ;)
> 
> I think the problem is within Processing in combination with the packaging:
> When e.g. I install QGIS 2.8 with ubuntugis-ltr dependencies (where
> nobody on the install page claims I shouldn't do), GRASS7 and the
> modeler are working, but Processing version is 2.6. Updating Processing
> to current Processing 2.10.1 (as recommended) seems to work.
> (Besides that v.clean in the modeler only returns a polygon layer from
> an polygon input, if I also set an output name for the error layer,
> otherwise I get an empty line shape)
> 
> But: The next time I run QGIS and want to run an GRASS algo: Missing
> depencies
> 
> I can now replace Processing 2.10.1 with the second latest 2.9.3 from
> https://plugins.qgis.org/plugins/processing/version/2.9.3/
> and there v.clean does what it should in Processing AND modeler.
> 
> But: Now I do not have GDAL Dissolve polygons which is in Processing
> 2.10.1. Well, I could switch back to Windows QGIS 2.10, but, grr, there
> is the bug in this algo ...
> 
> You see, I'm trapped.
> 
> Thanx for you attention
> Bernd
> 
> 
> 
>>
>> Both are Ubuntu 14.04 based.
>>
>> I'm not sure if this is a bug in Processing, or in packaging. I recall
>> in OSGeoLive 8.5 that we had custom packages with a patch. Note, you can
>> get those versions for your Ubuntu system from
>> https://launchpad.net/~osgeolive/+archive/ubuntu/release-8.5
>>
>> We freeze a copy of the working versions in our own ppa for long term
>> history.
>>
>> Thanks,
>> Alex
>>
>>
>> On 2015-08-02 03:32, Bernd Vogelgesang wrote:
>>> Hi Alex,
>>>
>>> Am 02.08.2015, 01:22 Uhr, schrieb Alex Mandel
>>> :
>>>
>>>> It's not a Windows/Ubuntu/Mac/OS thing, it's a QGIS + GRASS version
>>>> change thing.
>>>>
>>>> Please indicate which version of QGIS and GRASS you are trying to get
>>>> working.
>>>
>>> Actually I do not mind any more what version I would like to get
>>> working. I would have preferred the 2.8-LTR branch with no-matter-what
>>> GRASS version.
>>>
>>> I just would like to be able to finish my project, and there is
>>> unfortunately no alternative to the GRASS algos in my model.
>>>
>>>> QGIS 2.6 and older works with GRASS 6, 2.8+ sometimes is built to work
>>>> with GRASS 7 (though possibly also with GRASS 6).
>>>
>>> Mhm, reverting to 2.6 ... Lets see if this still possible at all ...
>>>
>>>> If you want a guaranteed working setup ASAP download a copy of OSGeo
>>>> Live Virtual Machine, we made sure that it works in that.
>>>> http://live.osgeo.org
>>>
>>> Will give it a try. Download will take another 1.5 hours ...
>>>
>>> So does that mean that even your do not have a working GRASS in a recent
>>> QGIS by "normal" means but the osgeo VM?
>>>
>>>
>>>>
>>>> Thanks,
>>>> Alex
>>>
>>> Cheers
>>> Bernd
>>>
>>>>
>>>> On 2015-08-01 14:41, Bernd Vogelgesang wrote:
>>>>> Hi guys,
>>>>> is it just bad karma, that I seem not to able to get a working
>>>>> GRASS in
>>>>> QGIS? Or did I miss the big advertisement "GRASS out of order"
>&g



Re: [Qgis-user] Any working GRASS in QGIS available?


2015-08-02

Thread
Alex Mandel

After some brief testing, my OSGeoLive 8.5 VM with QGIS 2.6 and
Processing 2.9.3, GRASS 7 works.

My QGIS 2.8, GRASS 6/7, Processing 2.10.1 does not.

Both are Ubuntu 14.04 based.

I'm not sure if this is a bug in Processing, or in packaging. I recall
in OSGeoLive 8.5 that we had custom packages with a patch. Note, you can
get those versions for your Ubuntu system from
https://launchpad.net/~osgeolive/+archive/ubuntu/release-8.5

We freeze a copy of the working versions in our own ppa for long term
history.

Thanks,
Alex


On 2015-08-02 03:32, Bernd Vogelgesang wrote:
> Hi Alex,
> 
> Am 02.08.2015, 01:22 Uhr, schrieb Alex Mandel :
> 
>> It's not a Windows/Ubuntu/Mac/OS thing, it's a QGIS + GRASS version
>> change thing.
>>
>> Please indicate which version of QGIS and GRASS you are trying to get
>> working.
> 
> Actually I do not mind any more what version I would like to get
> working. I would have preferred the 2.8-LTR branch with no-matter-what
> GRASS version.
> 
> I just would like to be able to finish my project, and there is
> unfortunately no alternative to the GRASS algos in my model.
> 
>> QGIS 2.6 and older works with GRASS 6, 2.8+ sometimes is built to work
>> with GRASS 7 (though possibly also with GRASS 6).
> 
> Mhm, reverting to 2.6 ... Lets see if this still possible at all ...
> 
>> If you want a guaranteed working setup ASAP download a copy of OSGeo
>> Live Virtual Machine, we made sure that it works in that.
>> http://live.osgeo.org
> 
> Will give it a try. Download will take another 1.5 hours ...
> 
> So does that mean that even your do not have a working GRASS in a recent
> QGIS by "normal" means but the osgeo VM?
> 
> 
>>
>> Thanks,
>> Alex
> 
> Cheers
> Bernd
> 
>>
>> On 2015-08-01 14:41, Bernd Vogelgesang wrote:
>>> Hi guys,
>>> is it just bad karma, that I seem not to able to get a working GRASS in
>>> QGIS? Or did I miss the big advertisement "GRASS out of order"
>>> somewhere.
>>>
>>> For nearly 2 weeks, I tried to get things to work in Ubuntu/Mint, and
>>> tried every possible/impossible repository, but always GRASS has missing
>>> dependencies, the forms open in Processing, but the algos don't run
>>> through, or the functions are working in Processing, but failing in the
>>> modeller.
>>>
>>> As I really got to finish a model in the Modeller including some GRASS
>>> algos, I finally turned on my VM with Windows ...
>>> but what the heck? Same s...t there!
>>>
>>> I really wonder why there aren't many post about trouble with GRASS on
>>> this list or at stackexchange, normally this would explode when things
>>> like these happen.
>>>
>>> So am I really the one with the bad karma, do you all other simply not
>>> use GRASS in processing as much as I do, or do you all simply have
>>> working installs, so there is not problem?
>>>
>>> Please, at least one: Do you have an install under Ubuntu or Windows,
>>> where GRASS algos are functional in the Modeler ? If yes, which
>>> version/what did you do?
>>>
>>> ... Soon, I will go and find me a rope ...
>>>
>>> Bernd
>>>
>>>
>>>
>>
> 
> 

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Re: [Qgis-user] Any working GRASS in QGIS available?


2015-08-01

Thread
Alex Mandel

It's not a Windows/Ubuntu/Mac/OS thing, it's a QGIS + GRASS version
change thing.

Please indicate which version of QGIS and GRASS you are trying to get
working.

QGIS 2.6 and older works with GRASS 6, 2.8+ sometimes is built to work
with GRASS 7 (though possibly also with GRASS 6).

If you want a guaranteed working setup ASAP download a copy of OSGeo
Live Virtual Machine, we made sure that it works in that.
http://live.osgeo.org

Thanks,
Alex

On 2015-08-01 14:41, Bernd Vogelgesang wrote:
> Hi guys,
> is it just bad karma, that I seem not to able to get a working GRASS in
> QGIS? Or did I miss the big advertisement "GRASS out of order" somewhere.
> 
> For nearly 2 weeks, I tried to get things to work in Ubuntu/Mint, and
> tried every possible/impossible repository, but always GRASS has missing
> dependencies, the forms open in Processing, but the algos don't run
> through, or the functions are working in Processing, but failing in the
> modeller.
> 
> As I really got to finish a model in the Modeller including some GRASS
> algos, I finally turned on my VM with Windows ...
> but what the heck? Same s...t there!
> 
> I really wonder why there aren't many post about trouble with GRASS on
> this list or at stackexchange, normally this would explode when things
> like these happen.
> 
> So am I really the one with the bad karma, do you all other simply not
> use GRASS in processing as much as I do, or do you all simply have
> working installs, so there is not problem?
> 
> Please, at least one: Do you have an install under Ubuntu or Windows,
> where GRASS algos are functional in the Modeler ? If yes, which
> version/what did you do?
> 
> ... Soon, I will go and find me a rope ...
> 
> Bernd
> 
> 
> 

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Re: [Qgis-user] Question on default file formats


2015-07-28

Thread
Alex Mandel

It's more elaborate than that. Not all applications in the toolbox can
read Spatialite yet either (e.g. SAGA). So the intermediate is something
all the tools can use. At some point the toolbox might get developed to
were any ogr data source can be used for the intermediates, but it isn't
there yet. I ran into this issue with Postgis a couple of years ago, and
the whole point of using Postgis was to escape the limitations of the
shapefile (particularly file size).

In some ways if you use Spatialite or Postgis you don't actually need a
lot of the basic tools as those can all be done with SQL via the DB
Manager or QSpatialite.

As for Geopackage, keep in mind it's an exchange format. Even with 2.8
I've had no issues reading GPKG files in, though I've been creating them
with ogr2ogr on the command line to convert whole databases at a time
between Spatialite and other formats.

Shapefile still remains the lowest common denominator. I agree other
formats should be suggested first by the save dialog since shp can cause
data loss (date/time, field names, etc).

Thanks,
Alex


On 07/28/2015 09:04 AM, Árni Geirsson wrote:
> Thanks for the answer Jim. I understand that the shapefiles are lingua
> franca but to me that would imply that they should be used when exchange
> with other applications is needed - which is not always. But I had not
> realized that I might be constraining the set of available tools if I use
> SpatiaLite. Does this mean that if I have my date in SpatiaLite, many of
> the tools in the Processing toolbox would not be available to me?
> 
> Arni
> 
> 
> Árni Geirsson
> *Alta ehf* // +354 582 5000 // +354 897 9549
> www.alta.is  // Alta á Twitter  // Alta á
> Facebook 
> 
> On Tue, Jul 28, 2015 at 3:54 PM, James Keener  wrote:
> 
>> More tools support it. Spatialite wasn't supported in esri until very
>> recently and other tools may not support anything but shape files. It's
>> become a lingual franca, and like English: it's terrible, but works well
>> enough.
>>
>> Jim
>>
>> On July 28, 2015 11:38:24 AM AST, "Árni Geirsson"  wrote:
>>
>>> Hello
>>> I find it interesting that the ancient shapefile format is (or at least
>>> appears to be) the default file format for QGIS when SpatiaLite seems to be
>>> a much more capable format. I have been using mostly shapefiles and when
>>> using for example the tools under the vector menu, intermediate results are
>>> saved as shapefiles, leading to a big pile of files after a short session
>>> of vector processing. Now, I have discovered that by using the processing
>>> tools the intermediates can be temporary files (still shapefiles, just
>>> hidden away in a temporary folder). After saving a temporary file as a
>>> SpatiaLite file, I can enter field names longer than 10 characters but I
>>> can not add a text field that accommodates more than 255 characters.
>>> So my question is: Why is the shapefile format the default?
>>>
>>> I have also noticed that with 2.10 I can save in Geopackage format. Does
>>> that mean that support for this format has improved?
>>>
>>> Any insights are highly appreciated.
>>>
>>> Arni Geirsson
>>>
>>> --
>>>
>>> Qgis-user mailing list
>>> Qgis-user@lists.osgeo.org
>>> http://lists.osgeo.org/mailman/listinfo/qgis-user
>>>
>>>
>> --
>> Sent from my Android device with K-9 Mail. Please excuse my brevity.
>>
> 
> 
> 
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Re: [Qgis-user] TIGER projection question


2015-07-26

Thread
Alex Mandel

On 07/26/2015 08:40 AM, Andre Joost wrote:
> Am 26.07.2015 um 17:09 schrieb James Keener:
>> This has been bothering me for days and I think I realize why: It's
>> valid on the outside of the rectangle and the marker in the middle isn't
>> to denote which part is valid, it's just the center of the map (I'd
>> never actually tried to move those maps until just now, and it moves
>> when you move the map).
>>
>> Is that the correct interpretation?
>>
> 
> No, the map is wrong because the valid area of the CRS crosses the datum
> line.
> 
> If you read the text on the left, you see that the Area is North
> America, from 52°W to 172°E, but it is meant over the shorter side.
> 
> HTH,
> André Joost
> 

The maps on spatiareference.org have been mostly wrong for quite a
while. The original authors stated Pull Requests welcome. I know I can
push new code if someone fixes it. I'll look into getting that code up
on github...

Otherwise there's
http://epsg.io/4269

Enjoy,
Alex

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Re: [Qgis-user] Live DVD advice


2015-06-29

Thread
Alex Mandel

Spatialite tends to be a drop in replacement for Postgis for these kinds
of things.

As pointed out, another way to go would be to use
TileStache+Spatialite+CartoCSS(Import to TileMill/Mapbox studio, then
export to Mapnik xml)+Mapnik

Thanks,
Alex

On 06/27/2015 05:19 PM, James Keener wrote:
> Ah, if you're already using mapserver, I'd see about just exporting the
> PostGIS db as a shapefile.  Are you worried it'll be too large/too slow?
> 
> Also, the OSM styles are available as CartoCSS, which is supported by
> other tilers too.
> 
> Jim
> 
> On 06/27/2015 08:13 PM, Brent Wood wrote:
>> Thanks James,
>>
>> I have looked at
>> http://docs.qgis.org/2.8/en/docs/user_manual/working_with_ogc/ogc_server_support.html?highlight=server
>>  
>> which seems like it would work - but I'd still need to avoid Postgis as
>> the data source (read only filesystem) and sort out the rendering styles
>> for use with QGIS - it may be possible to export the OSM Postgis tables
>> as shapefiles & use those as the data source, but I don't know how to go
>> about adapting the rendering styles, which is a large part of the value
>> of OSM - data plus style.
>>
>> Cheers,
>>
>>   Brent
>> 
>> *From:* James Keener 
>> *To:* Brent Wood ; Qgis-user List
>> ; Mapserver-users
>> ; OSGeo Discussions
>> ; Nzopengis ;
>> Live-demo 
>> *Sent:* Sunday, June 28, 2015 11:52 AM
>> *Subject:* Re: [Qgis-user] Live DVD advice
>>
>> Could you use QGIS Server?  It'd take a qgs file and the data it needs
>> (which can be any input type QGIS uses, including shapefiles and
>> spatialite dbs along with PostGIS).
>>
>> Jim
>>
>>
>>
>> On 06/27/2015 07:46 PM, Brent Wood wrote:
>>> Hi,
>>>
>>> I'm looking to build a LiveDVD/USB key with QGIS, OSM base layer and web
>>> services for New Zealand.
>>>
>>> Our road & topo data is very up to date in OSM, and we have numerous
>>> government (central, regional & local) agencies and others providing
>>> data via OGC services, so I'm hoping the system will have embedded OSM,
>>> and pre-loaded OGC servers to connect to, as well as some QGIS plugins
>>> specific to New Zealand.
>>>
>>> The disk/key is intended for schools & demonstrations showing FOSS, FOSS
>>> GIS, Open Data and Open Standards, focused on NZ data.
>>>
>>> Some years ago I built a laptop system demo'ed at several local schools
>>> which worked OK, with mapserver serving OSM via WMS direct from Postgis.
>>> NZ is small enough that the data could be rendered dynamically from the
>>> vector data in a reasonably interactive system.
>>>
>>> I can't reasonably use Postgis on a read only filesystem, and all the
>>> later guides assume that tiles will be used. Does anyone have any advice
>>> as to how I might best do this?
>>>
>>> Thanks,
>>>
>>> Brent Wood
>>
>>>

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Re: [Qgis-user] optimal route plugin?


2015-06-26

Thread
Alex Mandel

On 06/26/2015 08:54 AM, Innisfree McKinnon wrote:
> Hello all,
> Sorry if this is a common question. Is there a plugin to help with
> calculating optimal driving routes? I have a number of addresses to visit
> and need to figure out the most efficient route and order to visit them.
> This would be something like what UPS uses to route their trucks.
> 
> I googled around but didn't see anything obvious.
> 
> thanks,
> Innisfree
> 


Maybe the OSM Route plugin.

Directly in GRASS there is
http://grass.osgeo.org/grass64/manuals/v.net.salesman.html

Spatialite also has routing, not sure if it does multi-node

pgRouting is the other tool that comes to mind.

Other than the 1st plugin, or querying spatialite I'm not aware of
routing options in QGIS.

-Alex

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Re: [Qgis-user] QGIS-R


2015-06-11

Thread
Alex Mandel

On 06/10/2015 09:12 PM, Daniel Torres wrote:
> Hi every one, I'm having a hard time with Sextante and R. I'm trying to
> make a little script to calculate the sum of a variable per cathegory, the
> script runs in R, but I can't understand how to make it work in QGIS...
> 
> I haven't found many examples on QGIS-R, and the few ones use only one
> variable...
> 
> Any help is welcome (any documentation or examples are very welcome),
> Thanks,
> Daniel
> 
> 
> 
> 
> ##Basic statistics=group
> ##Layer=vector
> ##valores=Field Layer
> ##categorias=Field Layer
> valores<-Layer[[valores]]
> categorias<-Layer[[categorias]]
> catego<-as.factor(categorias)
> catego_unicos<-unique(catego)
> suma<-NA;suma<-data.frame(suma)
> for(i in 1:length(catego_unicos)){
> suma[i,1]<-sum(valores[catego==catego_unicos[i]])
> }
> colnames(suma)<-"suma"
> rownames(suma)<-catego_unicos
>> suma
> 
> 
> 

Here's a whole bunch of working examples. These can all be installed
from the download script in Processing now (under the R section).
https://github.com/qgis/QGIS-Processing/tree/master/rscripts

I think you're missing a variable to return the answer with?

Enjoy,
Alex

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Re: [Qgis-user] Opengeo (Geoserver) - QGIS 1:n relations


2015-06-09

Thread
Alex Mandel

On 06/08/2015 07:00 AM, Pedro wrote:
> Hi,
> 
> I'm using Opengeo plugin in QGIS top publish at Geoserver.
> Have a problem that I don't know how to handle it.
> 
> At QGIS Project Properties established a relationship between two postgis
> tables (1:n). 
> So when  when I open an object editor got the information from the two
> tables. (just 1 table have a geometry column).
> 
> By submitting the project to the Geoserver (with OpenGeo plugin) it takes
> the individual layers, i.e.,  it lose the relationship between the tables.
> 
> Are you aware if there is a way to keep this 1:n relationship in Geoserver?
> 
> 
> Thanks,
> Pedro
> 

You probably need to create a Postgis view yourself that mimics what the
plugin did. Then add this view directly to geoserver.

Other than that sounds like a feature request to OpenGeo for adding more
features to their plugin.

Thanks,
-Alex

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Re: [Qgis-user] Using Nasa's Visible Earth images with Qgis


2015-05-24

Thread
Alex Mandel

On 05/24/2015 08:02 PM, Joe Lertola wrote:
> Hello,
> -Joe
> 
> 
> 
> I would like to download Nasa’s Visible Earth images then load them into Qgis 
> and then use the Clipper command to clip out rectangular portions with 
> specific latitude/longitude boundaries. The Nasa images are available here: 
> http://visibleearth.nasa.gov/view.php?id=74218. The problem I am having is 
> that the images come into Qgis without the proper geographic coordinates. The 
> Nasa documentation says that the images are in the Plate Carree projection 
> and the projection datum is WGS84. But with my very limited knowledge of map 
> projections I do not know how to set this up in Qgis so that the images will 
> be positioned properly and use decimal degrees as their units. Any help would 
> be greatly appreciated. 
> 
> Thanks,
> -Joe
> 

EPSG:4326 WGS 84 is the projection to pick when loading the data.


If you happen to download all of them you can also make a GDAL VRT to
load everything as if it's one layer.

Enjoy,
Alex
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Re: [Qgis-user] Import to SpatiaLite from file geodatabase


2015-05-24

Thread
Alex Mandel

Of course that won't work in this case as DBF does not support Date-time
in a single field.

Back to the original question, if I'm understanding you are importing 2+
tables and joins between those tables aren't working when you try to
join by Date-Time?

If you really want things to work in SQLite use unixepoch to match the
join. Are you using the QGIS join tool for this? I would write a view in
sqlite/spatialite that joins the tables. It sounds like your issue stems
from how QGIS read the spatialite tables and tries the join. If you do
it with SQL then you can more finely control how the matches work (like
the above mentioned epoch conversion can be done on the fly).

PS: ogr2ogr should be able to batch convert your db consistently.

Thanks,
Alex




On 05/24/2015 09:09 AM, Bernd Vogelgesang wrote:
> Haven't worked with spatialite for a while, but by that time I needed to
> work with DB Manager, QSpatialite and the Spatialite GUI to get things
> done. Variety is nice, but having to use 3 tools is a bit too much imho.
> 
> Actually I would have like to move all my work to spatialite, but as
> qgis still seems to be very shape-o-centric (and postis is no option)
> and it's hard to remember what syntax to use in this tool and which
> function was in that, but not in the other, or the other way round, led
> me on the path of lowest resistance: using shape files :(
> 
> No offence, just a pitiful remark ;)
> 
> Cheers
> Bernd
> 
> Am 24.05.2015, 17:13 Uhr, schrieb Paolo Cavallini :
> 
>> Il 24/05/2015 17:03, James Wood ha scritto:
>>
>>> I was afraid
>>
>> No problem with that, James - I just want to understand the real needs
>> of users. My underlying idea is that variety is good, but too much
>> duplication scares users away, so we're trying to reduce it when
>> appropriate and feasible (remember the good old days where everything in
>> QGIS was double? labelling, styling, etc.).
>> All the best, and thanks for the feedback.
>>
> 
> 

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[Qgis-user] Fwd: Re:  Points in Polygon


2015-05-15

Thread
Alex Mandel

Please keep the conversation on list.


 Forwarded Message 
Subject: Re: [Qgis-user] Points in Polygon
Date: Fri, 15 May 2015 16:44:13 -0400
From: Joseph Sloop 
To: t...@wildintellect.com

​Alex,
I tried multiple polygons and points and still got the same results. Please
the attached .dmp file converted to txt.

Thank you for the help.

Joseph

On Fri, May 15, 2015 at 3:24 PM, Alex Mandel 
wrote:

> Does it matter what Point and Polygon layers are used (e.g. can you try
> some others, maybe even handmade 1 polygon 2 points).
>
> Also attach or post to the internet the .dmp file mentioned in that
> image. That is the error log.
>
> Thanks,
> Alex
>
> On 05/15/2015 12:17 PM, Joseph Sloop wrote:
> > To All:
> > I am running the 'Points in Polygon' process in QGIS 2.8.2 version and
> > every time I run the process I get this error:
> >
> > ​[image: Inline image 1]
> >
> > Once you click ok, QGIS shuts down. Any thoughts or suggestions?
> >
> > Cheers,
> >
> > Joseph​
> >
> > _
> >
> > Joseph Sloop
> >
> > PhD Candidate
> >
> > University of North Carolina at Greensboro
> >
> > Department of Geography
> >
> > jbsl...@uncg.edu
> >
> >
>



-- 

_

Joseph Sloop

PhD Candidate

University of North Carolina at Greensboro

Department of Geography

jbsl...@uncg.edu




Dump Summary

Dump File:  qgis-20150515-151339-7224-1544-1b929ef.dmp : 
D:\Downloads\qgis-20150515-151339-7224-1544-1b929ef.dmp
Last Write Time:5/15/2015 4:35:53 PM
Process Name:   qgis-bin.exe : C:\Program Files\QGIS Wien\bin\qgis-bin.exe
Process Architecture:   x64
Exception Code: 0xC005
Exception Information:  The thread tried to read from or write to a virtual 
address for which it does not have the appropriate access.
Heap Information:   Not Present

System Information
--
OS Version: 6.1.7601
CLR Version(s): 

Modules
---
Module Name Module Path Module Version
--- --- --
qgis-bin.exeC:\Program Files\QGIS Wien\bin\qgis-bin.exe 0.0.0.0
ntdll.dll   C:\Windows\System32\ntdll.dll   6.1.7601.18798
kernel32.dllC:\Windows\System32\kernel32.dll6.1.7601.18798
KERNELBASE.dll  C:\Windows\System32\KERNELBASE.dll  6.1.7601.18798
shell32.dll C:\Windows\System32\shell32.dll 6.1.7601.18762
msvcrt.dll  C:\Windows\System32\msvcrt.dll  7.0.7601.17744
shlwapi.dll C:\Windows\System32\shlwapi.dll 6.1.7601.17514
gdi32.dll   C:\Windows\System32\gdi32.dll   6.1.7601.18577
user32.dll  C:\Windows\System32\user32.dll  6.1.7601.17514
lpk.dll C:\Windows\System32\lpk.dll 6.1.7601.18768
usp10.dll   C:\Windows\System32\usp10.dll   1.626.7601.18454
qwt5.dllC:\Program Files\QGIS Wien\bin\qwt5.dll 5.2.3.0
QtGui4.dll  C:\Program Files\QGIS Wien\bin\QtGui4.dll   4.8.5.0
comdlg32.dllC:\Windows\System32\comdlg32.dll6.1.7601.17514
comctl32.dll
C:\Windows\winsxs\amd64_microsoft.windows.common-controls_6595b64144ccf1df_5.82.7601.18201_none_a4d3b9377117c3df\comctl32.dll
   5.82.7601.18201
advapi32.dllC:\Windows\System32\advapi32.dll6.1.7601.18247
sechost.dll C:\Windows\System32\sechost.dll 6.1.7600.16385
rpcrt4.dll  C:\Windows\System32\rpcrt4.dll  6.1.7601.18532
oleaut32.dllC:\Windows\System32\oleaut32.dll6.1.7601.18640
ole32.dll   C:\Windows\System32\ole32.dll   6.1.7601.17514
imm32.dll   C:\Windows\System32\imm32.dll   6.1.7600.16385
msctf.dll   C:\Windows\System32\msctf.dll   6.1.7601.18731
winmm.dll   C:\Windows\System32\winmm.dll   6.1.7600.16385
winspool.drvC:\Windows\System32\winspool.drv6.1.7601.17514
libpng16.dllC:\Program Files\QGIS Wien\bin\libpng16.dll 0.0.0.0
zlib1.dll   C:\Program Files\QGIS Wien\bin\zlib1.dll1.2.8.0
msvcr100.dllC:\Program Files\QGIS Wien\bin\msvcr100.dll 10.0.40219.1
QtCore4.dll C:\Program Files\QGIS Wien\bin\QtCore4.dll  4.8.5.0
ws2_32.dll  C:\Windows\System32\ws2_32.dll  6.1.7601.17514
nsi.dll C:\Windows\System32\nsi.dll 6.1.7600.16385
msvcp100.dllC:\Program Files\QGIS Wien\bin\msvcp100.dll 10.0.40219.1
QtSql4.dll  C:\Program Files\QGIS Wien\bin\QtSql4.dll   4.8.5.0
libpq.dll   C:\Program Files\QGIS Wien\bin\libpq.dll9.2.4.13228
ssleay32.dllC:\Program Files\QGIS Wien\bin\ssleay32.dll 1.0.1.7
libeay32.dllC:\Program Files\QGIS Wien\bin\libeay32.dll 1.0.1.7
msvcr90.dll 
C:\Windows\winsxs\amd64_microsoft.vc90.crt_1fc8b3b9a1e18e3b_9.0.30729.4940_none_08e4299fa83d7e3c\msvcr90.dll
9.0.30729.4940
wsock32.dll C:\Windows\System32\wsock32.dll 6.1.7600.16385
secur32.dll C:\Windows\System32\secur32.dll 6.1.7601.18798
sspicli.dll C:\Windows\System32\sspicl



Re: [Qgis-user] Points in Polygon


2015-05-15

Thread
Alex Mandel

Does it matter what Point and Polygon layers are used (e.g. can you try
some others, maybe even handmade 1 polygon 2 points).

Also attach or post to the internet the .dmp file mentioned in that
image. That is the error log.

Thanks,
Alex

On 05/15/2015 12:17 PM, Joseph Sloop wrote:
> To All:
> I am running the 'Points in Polygon' process in QGIS 2.8.2 version and
> every time I run the process I get this error:
> 
> ​[image: Inline image 1]
> 
> Once you click ok, QGIS shuts down. Any thoughts or suggestions?
> 
> Cheers,
> 
> Joseph​
> 
> _
> 
> Joseph Sloop
> 
> PhD Candidate
> 
> University of North Carolina at Greensboro
> 
> Department of Geography
> 
> jbsl...@uncg.edu
> 
> 
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Re: [Qgis-user] Ubuntu-unstable: New gdal and no QGIS 2.8.2


2015-05-13

Thread
Alex Mandel

This issue is known to the Ubuntugis Team. Basically the QGIS package
needs to be rebuilt after GDAL was upgraded but it a snag on GRASS
versioning. Hopefully will be fixed soon.

In the mean time the suggestion of combining qgis.org and ubuntugis
repos works. Or skip the upgrade for now until both gdal and qgis come
through the updater together.

Thanks,
Alex

On 05/13/2015 05:42 AM, Bernd Vogelgesang wrote:
> Am 13.05.2015, 13:40 Uhr, schrieb Jürgen E. Fischer :
> 
>> Hi Bernd,
>>
>> On Wed, 13. May 2015 at 12:34:50 +0200, Bernd Vogelgesang wrote:
>>> on my Linux Mint, the package-updater wants to update gdal from
>>> 1.11.1 to 1.11.2 which wants to remove qgis 2.8.1.
>>> Normally I just do those updates without looking at, but this time
>>> it makes me awkward, cause I read the announcement that 2.8.2 should
>>> be out already, but its not on ubuntu-unstable yet!
>>
>> Hm, I thought 2.8.1 was already rebuilt with the new GDAL in ubuntugis by
>> Johan.  Not sure.
>>
>> My ubuntugis packages are on qgis.org - see also
>> http://qgis.org/de/site/forusers/alldownloads.html#debian-ubuntu.
>>
>> Those are built against the latest ubuntugis packages at the time of the
>> release.
>>
>>
>>
>> Jürgen
>>
> 
> Well well, as expected: updated gdal, qgis was removed and it's now not
> able to be installed again.
> 
> qgis:
>  Hängt ab von: libgdal.so.1-1.11.1  but it is not installable
> 
> 
> What to do now?
> Still can't imagine that I'm the only one with this problem.
> 
> Cheers
> Bernd

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Re: [Qgis-user] Raster file format


2015-05-02

Thread
Alex Mandel

Just add Deflate or LZW compression to your tif (both are loseless, JPG
is not). The output files will be 10%-50% the size of the original in
most cases.

See the following post for a comparison of settings.
http://linfiniti.com/2011/05/gdal-efficiency-of-various-compression-algorithms/

Enjoy,
Alex

On 05/02/2015 07:36 AM, Nicolas Cadieux wrote:
> Hi,
> 
> I will be making huge... (No HUGE) DEMs file in QGIS.  I usually use .tif 
> or.tiff (not really sure what the real difference is) but they are large 
> files.
> 
> What would be the best Qgis raster format permitting both smaller disk 
> storage, lossless compression and ease of analysis using the various Qgis 
> plugins? Formats need to accept floats.  I only use one band.
> 
> Thanks for the help.
> 
> Nicolas Cadieux M.Sc.
> Les Entreprises Archéotec inc. 
> 8548, rue Saint-Denis Montréal H2P 2H2
> Téléphone: 514.381.5112  Fax: 514.381.4995
> www.archeotec.ca
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Re: [Qgis-user] Rendering of Images in QGIS 2.6x +


2015-03-27

Thread
Alex Mandel

This might be a side effect of Caching or Multi-core rendering. Try
toggling the modes in Settings->Options->Rendering and report back.

Thanks,
Alex

On 03/27/2015 07:41 PM, SBP wrote:
> Maybe my subject line was not clear. 
> There is a Bug is QGIS versions post 2.2 wherein raster images have issues
> getting rendered. They appear and disappear as we zoom in or pan. 
> 
> I have captured a video comparing the behaviour in 2.2 and 2.8 on a windows
> 7 machine. 
> This bug is making it impossible to use QGIS for interpreting raster images.
> 
> Video: https://www.youtube.com/watch?v=Wjly6C445uE&feature=youtu.be
> 
> I will post this on a separate thread if I am not able to get any responses.
> 
> Regards,
> Sitansu Pattnaik
> kCube Consultancy Services 
> 
> 
> 
> --
> View this message in context: 
> http://osgeo-org.1560.x6.nabble.com/Rendering-of-Images-in-QGIS-2-6x-tp5195147p5195836.html
> Sent from the Quantum GIS - User mailing list archive at Nabble.com.
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Re: [Qgis-user] BBox Filter for WFS


2015-03-26

Thread
Alex Mandel

That's exactly how I would expect it to work.

To cache a whole WFS and start seems overboard, in that case why
wouldn't you just download the data set. BBOX is a must for web services
as a main part of the purpose is to allow users to only grab the part
they need when they need it.

Thanks,
Alex


On 03/26/2015 01:28 PM, Peter Borissow wrote:
> Thanks Giovanni-It seems to me that the "cache features" option and the 
> option to fetch only the features intersecting the current map extent should 
> be 2 separate options. 
> 
> For example, when I open a WFS layer, I might want to retrieve only the 
> features intersecting the current map extent. Once it is loaded, I would want 
> QGIS to cache the features.
> 
> This is a common rendering technique used for WMS. A client requests an 
> initial BBOX and renders the image. The when the client pans, a new request 
> is made but only for the "missing" area. The original response is cached and 
> merged with the second response. Just a thought...
> 
> 
> Peter
> 
> 
>  From: G. Allegri 
>  To: Peter Borissow  
> Cc: "qgis-user@lists.osgeo.org"  
>  Sent: Thursday, March 26, 2015 1:27 PM
>  Subject: Re: [Qgis-user] BBox Filter for WFS
>
> As Marco explained in the realted post on qgis-dev the bbox filter should be 
> used if "cahce features" option is turned off, but at the moment it seems 
> broken, maybe because of new improvements in the rendering process. The issue 
> has been already reported in http://hub.qgis.org/issues/11968
> In the meanwhile a manual filter could be set within the WFS add layer dialog.
> giovanni
> 2015-03-26 16:07 GMT+01:00 G. Allegri :
> 
> 
> 
> It's an intereseting question Peter. I've verified that the wfs provider 
> still requests the whole data the first time, then it stores eveything (and 
> create a spatial index for subsequent calls).I suppose that sponsoring this 
> feature could be the right way to have it, but I'm curious to know what the 
> latest answer from Marco was referring to (I mean within the svn code he 
> indicates) [1]
> Giovanni
> [1] http://hub.qgis.org/issues/1421#note-4
> 2015-03-25 12:25 GMT+01:00 Peter Borissow :
> 
> Sorry for being impatient but I was wondering if anyone can shed some light 
> on this issue.
> I have a WFS that's serving out over a billion features (several million 
> records per layer). When I add a layer from the WFS into QGIS, it calls 
> DescribeFeature and then GetFeature without a BBOX filter. QGIS then waits 
> for ALL of the data to come back (which can take a while). 
> In the past, there was an option only fetch features that intersect the 
> current map extent. Without this option, it is extremely difficult to do 
> anything with the WFS using QGIS. 
> 
> IMHO, this is a pretty significant bug but hopefully one that should be 
> really easy to fix. Afterall, the code was there at some point...
> 
> 
> Related (unanswered) questions on stack exchange:
> 
> http://gis.stackexchange.com/questions/53387/quantumgis-1-8-how-to-define-bounding-box-within-add-wfs-layer-dialog
> http://gis.stackexchange.com/questions/59656/is-there-free-desktop-wfs-client-with-bbox-support
> 
> Thanks,Peter
> 
> 
> 
>   From: Peter Borissow 
>  To: "qgis-user@lists.osgeo.org"  
>  Sent: Monday, March 23, 2015 2:03 PM
>  Subject: BBox Filter for WFS
>
> Hello-I noticed that the WFS client in QGIS 2.8 and 2.6 do not seem to 
> pass a bbox filter when requesting features. 
> 
> It seems that in the past, QGIS had an option to only fetch features that 
> intersect the current map extent:
> 
> http://hub.qgis.org/issues/1421
> 
> Based on this thread, it looks like this feature was disabled in 1.8:
> http://osdir.com/ml/qgis-user-gis/2011-10/msg00308.html
> 
> Is this feature still missing or is there a way to enable this feature in the 
> latest release?
> 
> Thanks,Peter
> 
> 
> 

> 

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Re: [Qgis-user] rule based classification - attribute based on other layer


2015-03-25

Thread
Alex Mandel

Maybe but only if you table join 1st (or spatial join).
Are you trying to style feature A if it intersects with layer B features?

Purely based on comparison of values is kinda unusual and probably
doesn't exist yet.

Sounds like you are trying Red if valueA > max(layer B value)?

Thanks,
Alex

On 03/25/2015 10:14 AM, Matteo Ghetta wrote:
> Hi all,
> very simple question.
> In the rule-based classification (vector) is it possible to use values of
> another layer loaded in QGIS?
> 
> For example. Point vector and I want to display as red each feature that
> has a value greater than a value stored in another point layer (or in a
> table).
> In the expression builder there are the fields of the active layer.
> 
> Is it possible to call the fields of other layers?
> 
> Thanks
> 
> Cheers
> 
> Matteo

> http://lists.osgeo.org/mailman/listinfo/qgis-user
> 

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Re: [Qgis-user] Layer doesn't change export to pdf


2015-03-22

Thread
Alex Mandel

On 03/22/2015 02:15 PM, Chris House wrote:
> Hi all,
> 
> This is my first email and I'm not 100% on protocol.
> 
> I exported to a pdf from print composer. One of the layers were
> symbololized using inverted shapeburst polygons.  After the first export I
> changed the starting color of the shapeburst.  The next export reflected
> other changes to the map but not the starting color of the shapeburst.
> After exporting to jpg the color change was reflected. Any help would be
> appreciated!
> 
> Thanks!
> 
> Chris
> 
> 

Try the rasterize export option(It's a check box somewhere in the
composer). Some types of symbolization are not inherently supported by
pdf (color gradients in vectors being one of those).

Thanks,
Alex

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Re: [Qgis-user] Snap Raster


2015-03-20

Thread
Alex Mandel

On 03/20/2015 12:20 AM, Leo Kris Palao wrote:
> Hi QGIS Users,
> 
> Would like to inquire if there is an option in GDAL or in QGIS GUI to snap
> cells of the other raster to another raster layer.
> 
> Reason for this is that, I have a raster projected in WGS 84 then I would
> like to project it to MODIS Sinusoidal projection. But I want the output
> reprojected layer to adjust and match the cell alignment of the
> specified/reference raster.
> 
> Similar to Snap Raster option in ArcGIS Environment Settings.
> 
> Thanks in advance for the help.
> 
> -Leo
> 

I believe that's the gdal_warp option
-crop_to_cutline
Possibly combined with
-tr xres yres:
-tap:
http://www.gdal.org/gdalwarp.html

Pretty sure GRASS has a way too.

Thanks,
Alex



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Re: [Qgis-user] Plugin challenge: Landsat AWS PDS integration


2015-03-19

Thread
Alex Mandel

On 03/19/2015 07:13 PM, maning sambale wrote:
> Just saw this news of LANDSAT8 streaming archive from Amazon:
> https://aws.amazon.com/blogs/aws/start-using-landsat-on-aws/
> 
> Would be a nice qgis plugin to integrate. :)
> 

Just keep in mind it's only free if you are using it on Amazon servers.
So you'd have to be running QGIS in a EC2 instance. Otherwise you have
pay to run an amazon server for QGIS clients to connect to.

-Alex
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Re: [Qgis-user] Transferring QGIS work when you used a PostGIS	database


2015-03-04

Thread
Alex Mandel

On 03/04/2015 09:20 PM, Leahy, Thomas A. wrote:
> Hello,
> 
>If I just use shape and raster files it is fairly easy for me to give 
> someone all my QGIS work on a USB stick as it uses relative directory 
> references as long as everything is below the Project Directory they can use 
> it as I did. However if I decide to use PostGIS is there an easy way to 
> similarly transfer the work that was done to another person?
> 
> Thanks for your assistance,
> Tom Leahy

Convert the Postgis db to Spatialite. There are several tools out there
for this, ogr2ogr would work, as would a couple of QGIS Plugins (offline
editor can clone your postgis to local), the spatialite author even made
some tool I can't recall the name right now.

Eventually this will be the role of the new GeoPackage format that will
bundle vector and raster into a sqlite db.

Thanks,
Alex
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Re: [Qgis-user] LecoS


2015-02-22

Thread
Alex Mandel

That's outdated info (at one point may have been true). 64bit has it.
python-scipy, 0.14.0-1
http://download.osgeo.org/osgeo4w/x86_64/versions.html

Thanks,
Alex

On 02/22/2015 03:53 PM, Mike Treglia wrote:
> Also, pretty sure on windows you need to use 32 bit for SciPy.  It's pretty 
> easy to get data into Fragstats from QGIS too as an alternative... 
> http://www.umass.edu/landeco/research/fragstats/fragstats.html
> 
> 
> 
>> On Feb 22, 2015, at 3:41 PM, Alex Mandel  wrote:
>>
>> I believe OSGeo4W includes Scipy. If you used the QGIS standalone
>> installer you probably don't have it.
>>
>> http://gis.stackexchange.com/questions/50464/how-to-install-scipy-for-qgis-standalone
>>
>> So it doesn't have to be super hard.
>>
>> Thanks,
>> Alex
>>
>>> On 02/22/2015 01:31 PM, Susan Iremonger wrote:
>>> Thanks for that, sadly I think that sounds a bit beyond my capabilities. I
>>> am using Windows 8.1. I shall look into it further and see if I can get
>>> some advice on how to do that. Thanks.
>>> Susan.
>>>
>>> On Sun, Feb 22, 2015 at 9:24 PM, Alex Mandel 
>>> wrote:
>>>
>>>>> On 02/22/2015 01:19 PM, Susan Iremonger wrote:
>>>>> Hi, first time using this mailing list, apologies if I am making errors
>>>>> with whom to sent it to. I am asking for info about a plugin called
>>>> LecoS -
>>>>> Landscape Ecology Statistics. When I tried to load it (I am using QGIS
>>>>> Brighton)  I got a message "The plugin is broken. No module named scipy".
>>>>> Does anyone know anything about the plugin and how it can be got working?
>>>>> Thanks.
>>>>> Susan
>>>>
>>>> You have to install the Python Scipy library to the same python that
>>>> QGIS uses. Installation of python libraries depends on what operating
>>>> system you are using.
>>>>
>>>> Thanks,
>>>> Alex
>>
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> 
> 
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Re: [Qgis-user] LecoS


2015-02-22

Thread
Alex Mandel

I believe OSGeo4W includes Scipy. If you used the QGIS standalone
installer you probably don't have it.

http://gis.stackexchange.com/questions/50464/how-to-install-scipy-for-qgis-standalone

So it doesn't have to be super hard.

Thanks,
Alex

On 02/22/2015 01:31 PM, Susan Iremonger wrote:
> Thanks for that, sadly I think that sounds a bit beyond my capabilities. I
> am using Windows 8.1. I shall look into it further and see if I can get
> some advice on how to do that. Thanks.
> Susan.
> 
> On Sun, Feb 22, 2015 at 9:24 PM, Alex Mandel 
> wrote:
> 
>> On 02/22/2015 01:19 PM, Susan Iremonger wrote:
>>> Hi, first time using this mailing list, apologies if I am making errors
>>> with whom to sent it to. I am asking for info about a plugin called
>> LecoS -
>>> Landscape Ecology Statistics. When I tried to load it (I am using QGIS
>>> Brighton)  I got a message "The plugin is broken. No module named scipy".
>>> Does anyone know anything about the plugin and how it can be got working?
>>> Thanks.
>>> Susan
>>>
>>>
>>
>> You have to install the Python Scipy library to the same python that
>> QGIS uses. Installation of python libraries depends on what operating
>> system you are using.
>>
>> Thanks,
>> Alex
>>
>>
> 
> 

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Re: [Qgis-user] LecoS


2015-02-22

Thread
Alex Mandel

On 02/22/2015 01:19 PM, Susan Iremonger wrote:
> Hi, first time using this mailing list, apologies if I am making errors
> with whom to sent it to. I am asking for info about a plugin called LecoS -
> Landscape Ecology Statistics. When I tried to load it (I am using QGIS
> Brighton)  I got a message "The plugin is broken. No module named scipy".
> Does anyone know anything about the plugin and how it can be got working?
> Thanks.
> Susan
> 
>

You have to install the Python Scipy library to the same python that
QGIS uses. Installation of python libraries depends on what operating
system you are using.

Thanks,
Alex

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Re: [Qgis-user] Georeferencer formulas


2015-02-19

Thread
Alex Mandel

On 02/19/2015 09:37 AM, yannis.forums wrote:
> Hi all
> Does anyone know where I can find the formulas used for the
> transformations in georeferencer module?
> Yannis Yanniris
> 
> 
> 

GDAL source code.

Polynomial seems to be in http://www.gdal.org/gvgcpfit_8h_source.html
Best to ask on the GDAL mailing lists.

Thanks,
Alex

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Re: [Qgis-user] HELP! I cannot save my projects


2015-02-14

Thread
Alex Mandel

Hmm, that idea just made me think that using version control on a QGIS
project file could be useful. Since it's text based any of the VCS
systems out there would be good, like GIT. Just a way to keep your
folder less cluttered and always reversible. But yes your method works.

Wonder if a plugin would make sense here to version your project file...

-Alex

On 02/14/2015 10:54 AM, G. Garibaldi wrote:
> A note on working with Time Manager.
> 
> I save my projects with a daily Julian Calendar date stamp, thus:
> ProjectName045. 045 being the 45th day of the year. When Time Manager
> trashes the most current project file I can simply go back however many
> days until I get a good project file. This technique doesn't always
> work, but it does solve problems sometimes.
> 
> G.
> 
> On 2/14/2015 12:38 PM, Anita Graser wrote:
>>
>> Most likely it's due to a time manager bug which will be fixed in the
>> version I'm planning to release tomorrow.
>> Best wishes
>> Anita
>>
>> On Feb 14, 2015 2:25 PM, "magerlin" > > wrote:
>>
>> OK - nice to know. If it happens again I wil try to uninstall
>> Timemanager and
>> see if it helps.
>>
>> Thanks for your quick response!
>>
>>
>>
>> -
>> Regards Morten
>>
>> Currently using Qgis 2.6.1 (OSGeo4),
>> Windows 7, 64bit
>> --
>> View this message in context:
>>
>> http://osgeo-org.1560.x6.nabble.com/HELP-I-cannot-save-my-projects-tp5187608p5187617.html
>>
>> Sent from the Quantum GIS - User mailing list archive at Nabble.com.


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Re: [Qgis-user] Deploying Qgis in an organisation.


2015-02-14

Thread
Alex Mandel

There is a slight speed penalty depending on your network to putting
shared applications on a network drive. You might want to consider using
a deployment tool like Puppet to keep the plugins folder up to date and
in sync across machines.

-Alex

On 02/14/2015 03:20 AM, Bo Victor Thomsen wrote:
> Hi Mats (Old mapinfo-user ??)
> 
> Take a look at this article:
> http://www.qgis.nl/2014/04/22/qgis-in-de-klas-onder-windows/?lang=en. It
> explains how to use the --configuration qualifier to make a shared
> environment, where each user has a private directory for plugins and
> set-up. If you use --configpath it's not necessary to do a "proper"
> installation of QGIS - just copy the different qgis directories to the
> user-pc - or leave the directory at a central network based share.
> 
> You can distribute your QGIS installation to the local user-pc's for
> performance reasons and do some cmd.exe woodoo to check for updates each
> time the user starts QGIS.
> 
> Regards
> Bo Victor Thomsen
> AestasGIS
> Denmark
> 
> Den 14-02-2015 kl. 11:54 skrev Mats Elfström:
>> Hi all!
>> I am looking for hints on how to deploy Qgis as a desktop GIS tool for
>> a limited number of users.
>> My idea is to have a common program repository with plugins, a map and
>> layer catalogue, and some basic settings, but still allow individual
>> users to create their own work environment.
>> In this way, updates and configuration changes need only be applied
>> centrally, and distributed on program start to each user.
>> This is a windows environment on a shared corporate network.
>> I wish to avoid a manual installation for each user, which would be
>> impossible to maintain and get out of sync at once.
>>
>> Regards, Mats.E
>>


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Re: [Qgis-user] Build raster cataloge from directory and subdirectories with only one type of files?


2015-02-05

Thread
Alex Mandel

On 02/05/2015 10:17 AM, Johan Nilsson wrote:
> Using QGIS 2.6.1 on Ubuntu 14.04
> 
> It is possible to Build Virtual Raster and select directory but only take
> one type of files, fore instance *.asc and not *.tif?
> 
> You may select file-types, but only if you select input files not input
> directory  (and recurse subdirectories) under Menu:
> Raster-->Miscellanous-->Build Virtual Raster (Catalog)
>  When you check 'Choose input directory instead of files' input filetypes
> get greyed out
> 
> Are there another way to Build Raster Catalog in QGIS?
> 
> /Cheers


You will probably need to override the GDAL command in the bottom box
with the pencil icon. The gui only has a limited subset of options.

http://www.gdal.org/gdalbuildvrt.html

*.tif is allowed as the input file, which would do all tifs.

The other approach is to create a list of all files you want to include 1st.

Enjoy,
Alex
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Re: [Qgis-user] R: Re:  Aerograms style


2015-01-23

Thread
Alex Mandel

Yes, you can make those
http://darrencope.com/2011/11/01/qgis-diagrams-pie-charts-for-symbols/

Diagrams or Charts are the more common english term.

Enjoy,
Alex

On 01/23/2015 03:36 AM, labiancamaril...@libero.it wrote:
> 
> Hi, 
> I meant that I have seen in several atlases that on map instead of changes in 
> color were pie charts with variable dimensions showing the intensity of a 
> phenomenon.
> I do not know if I explained well.
> This is an example:
> http://www.cartografia.regione.lombardia.
> it/oopp/html/help/images/mappaHideShowLabel.png
> Thanks a lot
> Marilena
> 
> 
> 
> 
> 
> ssaggio originale
>> Da: tech_...@wildintellect.com
>> Data: 22/01/2015 21.24
>> A: "Andre Joost", 
>> Ogg: Re: [Qgis-user] Aerograms style
>>
>> On 01/22/2015 12:02 PM, Andre Joost wrote:
>>> Am 21.01.2015 um 20:16 schrieb
>>> labiancamaril...@libero.it:
 Dear all, I would like to customize the map using the style as
 aerograms to show the intensity of a phenomenon, but I do not find
 this option in QGIS. Can anyone help me?
>>>
>>> I am not sure what you mean by aerogram style.
>>>
>>> You can use a categorized or graduated style with colour ramps of reds,
>>> greens or blues on the data field you want to visualize, and add some
>>> transparency if you want to have a basemap shining through.
>>>
>>> HTH,
>>> André Joost
>>>
>>
>> Did you mean something like this:
>> http://www.nasa.gov/images/content/583575main_Fig.%203.jpg
>>
>> With the arrows showing direction and magnitude?
>>
>> Thanks,
>> Alex
>>
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> 
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Re: [Qgis-user] Aerograms style


2015-01-22

Thread
Alex Mandel

On 01/22/2015 12:02 PM, Andre Joost wrote:
> Am 21.01.2015 um 20:16 schrieb
> labiancamaril...@libero.it:
>> Dear all, I would like to customize the map using the style as
>> aerograms to show the intensity of a phenomenon, but I do not find
>> this option in QGIS. Can anyone help me?
> 
> I am not sure what you mean by aerogram style.
> 
> You can use a categorized or graduated style with colour ramps of reds,
> greens or blues on the data field you want to visualize, and add some
> transparency if you want to have a basemap shining through.
> 
> HTH,
> André Joost
> 

Did you mean something like this:
http://www.nasa.gov/images/content/583575main_Fig.%203.jpg

With the arrows showing direction and magnitude?

Thanks,
Alex

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Re: [Qgis-user] Editing shapefile attributes in QGIS


2014-12-19

Thread
Alex Mandel

Actually the issue is that Excel 2007 and later no longer allow Saving
DBF without add-ons (3rd party). Only LibreOffice or OpenOffice still
support that.

So yes if you can use Table Manager and built in tools to QGIS that
would provide less headache long term, manually adding columns to dbf is
a little tricky sometimes.

Alternately you can import an xls table and join it to an existing
shapefile.

Enjoy,
Alex

On 12/18/2014 12:14 PM, Basques, Bob (CI-StPaul) wrote:
> Paulo,
> 
> Well my first answer would be to suggest you simply open the DBF file up in 
> Excel and edit it directly, as long as you leave the ID columns (to associate 
> the attributes with the Geometries) alone you can do all that you describe.  
> But Excel no longer opens DBF files by default (or does it now, again?).  So, 
> you should use OpenOffice or LibreOffice to open them, and then do the same 
> thing in there.
> 
> Bobb
> 
> 
> 
> From: qgis-user-boun...@lists.osgeo.org 
> [mailto:qgis-user-boun...@lists.osgeo.org] On Behalf Of Paulo van Breugel
> Sent: Thursday, December 18, 2014 2:09 PM
> To: David Bradley; QGIS user email list
> Subject: Re: [Qgis-user] Editing shapefile attributes in QGIS
> 
> You can do a lot with the Table manager (you can find and install this plugin 
> via the plugin manager: menu --> plugins --> manage and install plugins).
> If that is not enough, you can of course always open the dbf file. I would 
> recommend using LibreOffice/OpenOffice instead of excel as in my experience 
> at least Excel can sometimes mess up the dbf file.
> 
> Paulo
> 
> On 18 December 2014 20:39:33 CET, David Bradley 
> mailto:dodod...@gmail.com>> wrote:
> 
> Can someone point me in the direction of a better way to edit the data in a 
> shapefile?
> 
> Basically I want to export what is already in there to Excel, edit it, and 
> then re-import it. The editing I need to do is to move a few cells into 
> another column, add several columns, and remove many other seemingly 
> superfluous columns.
> 
> Thanks for any suggestions!
> David
> 
> 
> 
> Qgis-user mailing list
> Qgis-user@lists.osgeo.org
> http://lists.osgeo.org/mailman/listinfo/qgis-user
> 
> 
> 
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Re: [Qgis-user] reload WMS raster


2014-12-14

Thread
Alex Mandel

Tile size is size in pixels of each image request. If you split a WMS
request into parts, they can often be rendered, and downloaded separate
in parallel from the backend web server. Note most WMTS, TMS and other
tile services use a standard of 256x256. So you are saving time on the
server side which is often the biggest time consumer in a WMS request.

This in principal is why Tile Services are faster than WMS - the image
generation is done ahead of the request by a previous request, so it
comes from cache instead of being drawn from scratch.

Thanks,
Alex

On 12/14/2014 10:37 AM, Jake Maier wrote:
> Thank you Nicolas. I turned on the cash and this is already what I want to 
> achive. But even better is the 300x300 tile size. Now if you or someone could 
> explain what the 300x300 means. Is it meter, or pixels, or something totally 
> different.
> 
> Great. My problem is solved. I could bite my butt that I didn’t ask earlier  J
> Jake 
> 
>  
> 
> From: qgis-user-boun...@lists.osgeo.org 
> [mailto:qgis-user-boun...@lists.osgeo.org] On Behalf Of Nicolas Cadieux
> Sent: Sunday, December 14, 2014 12:58 AM
> To: qgis-user@lists.osgeo.org
> Subject: Re: [Qgis-user] reload WMS raster
> 
>  
> 
> Hi, 
> 
> Specify a tile size like 300x300 in the wms setting.  In your network 
> option(Setting\options\network), you are able to increase the size of the 
> cashe.  I know the first option works, the second option not sure but I do it 
> anyway...  
> 
> Use "cache to speed up" in the rendering options.(setting\option\rendering). 
> 
> Also, I usually have 2 wms layers at once.  One with more layers (Slow), and 
> one with only one layer like the road or water (fast).  I keep only the 
> second one on. When I am where I want to be, I turn on the first, more 
> complex layer. 
> 
> Nicolas Cadieux M.Sc. 
> Les Entreprises Archéotec inc.  
> 8548, rue Saint-Denis Montréal H2P 2H2 
> Téléphone: 514.381.5112  Fax: 514.381.4995 
> 
> Le 2014-12-13 19:34, "Jake Maier [via OSGeo.org]" <[hidden email]> a écrit : 
> 
> 
>>
>> I mostly work with WMS raster files. Each time I change anything, turning on 
>> or off layers, editing layers etc, the WMS reloads the raster even if there 
>> is no change in the underlying data of the raster. I have a slow connection 
>> and it drives me crazy to wait each time I move vertices. I often use ‘save 
>> as image’ and load the image, but I already have too many of those temporary 
>> rasters and still I find myself using sections or magnification where the 
>> rasters I copied are insufficient. Is there a trick to speed up the process 
>> of editing the canvas without the WMS reloading? 
>>
>> Thanks for any help 
>>
>> Jake 
>>
>>   
>>
>>
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>> below: 
>> http://osgeo-org.1560.x6.nabble.com/reload-WMS-raster-tp5177790.html
>> To start a new topic under Quantum GIS - User, email [hidden email] 
>> To unsubscribe from Quantum GIS - User, click here. 
>> NAML
> 
>  
> 
>   _  
> 
> View this message in context: Re: reload WMS raster 
> 
>  
> Sent from the Quantum GIS - User mailing list archive 
>   at 
> Nabble.com.
> 
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Re: [Qgis-user] open file .mxd


2014-12-11

Thread
Alex Mandel

On 12/11/2014 10:04 AM, Maria Susana Lopreiato wrote:
> Hi everybody, i want to know if  know how to open files .mxd in qgis
> Thank you
> 
> María
> 
> 

No, you can't open .mxd. That format has not been reverse engineered to
my knowledge by any non-ESRI applications.

Thanks,
Alex

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Re: [Qgis-user] Spatialite queries return text instead of numeric values


2014-12-10

Thread
Alex Mandel

What happens if you CREATE VIEW with those tests?
Does QGIS read the VIEW differently?

Thanks,
Alex

On 12/10/2014 10:57 AM, Alexandre Neto wrote:
> Hello all,
> 
> To make some tests I have the folllowing table:
> 
> General info
> 
> 
>   Relation type:
> 
> Table
> 
> Rows:
> 
> 3
> 
> SpatiaLite
> 
> 
>   Column:
> 
> geometry
> 
> Geometry:
> 
> MULTIPOLYGON
> 
> Dimension:
> 
> XY
> 
> Spatial ref:
> 
> WGS 84 (4326)
> 
> Extent:
> 
> (unknown) (find out )
> 
> Fields
> 
> 
>   #
> 
> Name
> 
> Type
> 
> Null
> 
> Default
> 
> 0
> 
> pkuid
> 
> integer
> 
> Y
> 
> 
> 
> 1
> 
> coluna1
> 
> text
> 
> Y
> 
> 
> 
> 2
> 
> coluna2
> 
> real
> 
> Y
> 
> 
> 
> 3
> 
> coluna3
> 
> integer
> 
> Y
> 
> 
> 
> 4
> 
> geometry
> 
> MULTIPOLYGON
> 
> Y
> 
> 
> 
> 
> If I do this:
> 
> SELECT
>*,
> coluna2/1.0 AS test_field
> FROM
> testes
> 
> when I open it with DBmanager the test_field return a QSTRING with type
> name TEXT
> 
> http://imgur.com/GHeMyiW
> 
> Using cast:
> 
>  SELECT
>*,
> cast((coluna2/1.0) as real) AS test_field
> FROM
> testes
> 
> I get the same.
> 
> Thanks for the help.
> 
> Alexandre Neto
> 
> 
> On Wed, Dec 10, 2014 at 6:16 PM, Alex Mandel 
> wrote:
> 
>> On 12/10/2014 09:55 AM, Goyo wrote:
>>> 2014-12-10 1:50 GMT+01:00 Alexandre Neto :
>>>> Hello,
>>>>
>>>> When querying a spatialite database in the database manager, if you
>> create
>>>> some calculations (say add two columns values) the resulting column
>> returns
>>>> as TEXT instead of the expected numeric field.
>>>>
>>>> Is this intended or a bug?
>>>>
>>>> Trying to cast it as real, double or float did not work either.
>>>
>>> Calculated columns in SQLite do not have a data type, the actual
>>> values in the column do. If you execute this query:
>>>
>>> SELECT "col1" + "col2" AS "thevalue", typeof("col1" + "col2") as
>>> "thetype" FROM "table"
>>>
>>> You should have "thetype"='real' in every row (provided "col1" and
>>> "col2" always contain real values) but the column "thevalue" does not
>>> have a data type assigned.
>>>
>>> I guess QGIS needs to assign a data type to each column and chooses
>>> the more general type when the column does not have one without
>>> looking at the actual values (which could be expensive and also
>>> misleading if the data change).
>>>
>>> Goyo
>>> ___
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>>>
>>
>> There are two ways in SQLITE to get the numeric type you want, you can
>> do a CAST() or you can force it with a multiplication (*1 or *1.0). It's
>> really critical if you do a division to *1.0 somewhere in the statement
>> otherwise you'll only get an integer.
>>
>> Note this is not a QGIS specific thing, it applies to general use of
>> SQLITE.
>>
>> You said you tried a CAST, can you paste what you tried?
>>
>> Thanks,
>> Alex
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Re: [Qgis-user] Spatialite queries return text instead of numeric values


2014-12-10

Thread
Alex Mandel

On 12/10/2014 09:55 AM, Goyo wrote:
> 2014-12-10 1:50 GMT+01:00 Alexandre Neto :
>> Hello,
>>
>> When querying a spatialite database in the database manager, if you create
>> some calculations (say add two columns values) the resulting column returns
>> as TEXT instead of the expected numeric field.
>>
>> Is this intended or a bug?
>>
>> Trying to cast it as real, double or float did not work either.
> 
> Calculated columns in SQLite do not have a data type, the actual
> values in the column do. If you execute this query:
> 
> SELECT "col1" + "col2" AS "thevalue", typeof("col1" + "col2") as
> "thetype" FROM "table"
> 
> You should have "thetype"='real' in every row (provided "col1" and
> "col2" always contain real values) but the column "thevalue" does not
> have a data type assigned.
> 
> I guess QGIS needs to assign a data type to each column and chooses
> the more general type when the column does not have one without
> looking at the actual values (which could be expensive and also
> misleading if the data change).
> 
> Goyo
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There are two ways in SQLITE to get the numeric type you want, you can
do a CAST() or you can force it with a multiplication (*1 or *1.0). It's
really critical if you do a division to *1.0 somewhere in the statement
otherwise you'll only get an integer.

Note this is not a QGIS specific thing, it applies to general use of SQLITE.

You said you tried a CAST, can you paste what you tried?

Thanks,
Alex
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Re: [Qgis-user] Importing SVG files for symbols


2014-12-09

Thread
Alex Mandel

Can you post an example svg file online for other people to test?
Have you tried importing some known working svg icons?

Thanks,
Alex

On 12/09/2014 10:37 PM, Ludwig Gamsjäger wrote:
> Alex,
> 
> thanks for your input, unfortunately this what I tried but it seems not to
> work in 2.6. The location in options is now moved to options/system, I
> inputted all my paths but it does not allow me to access the symbols.
> Also trying to import in the Share function fails, it gives an error like
> invalid svg tag in file or so.
> Maybe there is something I have overlooked in other tabs in options, anyway,
> thanks,
> 
> Ludwig
> 
> 
> 
> -Ursprüngliche Nachricht-
> Von: Alex Mandel [mailto:tech_...@wildintellect.com] 
> Gesendet: Dienstag, 09. Dezember 2014 18:37
> An: Ludwig Gamsjäger; qgis-user@lists.osgeo.org
> Betreff: Re: [Qgis-user] Importing SVG files for symbols
> 
> This page shows the process:
> http://learninggis.com/gis-resources/qgis-oilandgas-symbol
> 
> Thanks,
> Alex
> 
> On 12/09/2014 08:03 AM, Ludwig Gamsjäger wrote:
>>
>>
>> I would need some help to import svg symbols into QGIS Brighton. My 
>> main problem is that there is no documentation (or I can’t find it) 
>> how to proceed with this. Programs like Inkscape would read my files but
> not QGIS.
>> Maybe somebody is out there giving me hints or a reference 
>> documentation; thanks in advance,
>>
>>  
>>
>> Ludwig
>>
>>  
>>
>> Ludwig Gamsjäger
>>
>> Bergengasse 4/1/8
>>
>> A-1220 Vienna, Austria
>>
>> phone: +43 (0) 681 2066-3138
>>
>> email: lu...@bergengasse.at
>>
>>  
>>
>> This message is confidential and intended solely for the addressee. If 
>> you received this message in error, please immediately inform the 
>> sender and delete the message and any attachments. Thank you. To the 
>> extent permitted by law, I shall in no way be liable for any damages, 
>> whatever their nature, arising out of transmission failures, viruses, 
>> external influences, delays and the like.
>>
>>  
>>
>>
>>
>>
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Re: [Qgis-user] Importing SVG files for symbols


2014-12-09

Thread
Alex Mandel

This page shows the process:
http://learninggis.com/gis-resources/qgis-oilandgas-symbol

Thanks,
Alex

On 12/09/2014 08:03 AM, Ludwig Gamsjäger wrote:
> 
> 
> I would need some help to import svg symbols into QGIS Brighton. My main
> problem is that there is no documentation (or I can’t find it) how to
> proceed with this. Programs like Inkscape would read my files but not QGIS.
> Maybe somebody is out there giving me hints or a reference documentation;
> thanks in advance,
> 
>  
> 
> Ludwig
> 
>  
> 
> Ludwig Gamsjäger
> 
> Bergengasse 4/1/8
> 
> A-1220 Vienna, Austria
> 
> phone: +43 (0) 681 2066-3138
> 
> email: lu...@bergengasse.at
> 
>  
> 
> This message is confidential and intended solely for the addressee. If you
> received this message in error, please immediately inform the sender and
> delete the message and any attachments. Thank you. To the extent permitted
> by law, I shall in no way be liable for any damages, whatever their nature,
> arising out of transmission failures, viruses, external influences, delays
> and the like.
> 
>  
> 
> 
> 
> 
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Re: [Qgis-user] [QGIS-user] Prompt for projection when importing raster - QGIS 2.6


2014-11-26

Thread
Alex Mandel

On 11/26/2014 05:45 PM, Brett Adams wrote:
> Hi Folks,
> 
>  
> 
> How do I set QGIS 2.6 to prompt for projection when importing a raster file
> with a projection it doesn't recognise?
> 
>  
> 
> The TIF images are GDA94/MGA zone51 but for some reason it doesn't always
> recognise the projection.I know they can be reset later, but when theirs
> 20 images that gets a bit laborious.
> 
>  
> 
> Thanks
> 
> Brett 
> 
> 
> 

Not exactly an answer, but if this is a mosaic of side by side images,
you should just create a Virtual Raster Table (VRT), then you only have
1 file to load and can ensure the proj info is correct. To make a VRT
use the Raster menu -> Miscellaneous.

Now to try and answer the original question:
Settings->Options->CRS "Prompt for CRS" might work, however not
recognized vs no projection are different.

Thanks,
Alex

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Re: [Qgis-user] Importing Google Maps


2014-11-26

Thread
Alex Mandel

You want the OpenLayers Plugin.

Maps Engine plugin imports layers you've made on the online maps engine
(My maps) feature of google.

-Alex

On 11/25/2014 11:35 PM, Brett Adams wrote:
> Folks,
> 
>  
> 
> I'm want to bring Google maps, specifically  satellite imagery, into QGIS
> 2.6.
> 
>  
> 
> I've been trying to do this using the "Google Maps Engine Connector" plug
> in.   Is this the best way?
> 
>  
> 
> Went to google, got the OAuth 2.0 code, plugged in my Client ID and Client
> Secret.  It then prompts for the google log in. From there I get the error
> shown below.
> 
>  
> 
> Any ideas where I'm going wrong?  Is there an easier way to bring in the
> imagery?
> 
>  
> 
> We used to be able to bring in Bing imagery also.  Can that be done in 2.6?
> 
>  
> 
> Thanks
> 
>  
> 
> Brett 
> 
>  
> 
> 
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Re: [Qgis-user] 2.6 very slow to render


2014-11-24

Thread
Alex Mandel

On 11/24/2014 05:51 PM, Brett Adams wrote:
> Hi Folks,
> 
>  
> 
> Just upgraded from 1.8 to 2.6.
> 
>  
> 
> 2.6 is amazingly slow in the render control and rerendering compared to 1.8.
> Almost unusable.
> 
>  
> 
> 1.8 runs perfect. Fast, efficient, no complaints.
> 
>  
> 
> This has to be local to my machine, otherwise no one would be using 2.6.
> 
>  
> 
> Any recommendations on what settings I can check?Running on W7-64.
> 
>  
> 
> Thanks
> 
>  
> 
> Brett  Adams
> 
> Spinifex Geophysics
> 
> 0438 861 974
> 

Try disabling/changing multi-threaded rendering. It may not work well on
your hardware.

Settings ->Options->Rendering

Thanks,
Alex
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Re: [Qgis-user] Android Camera App with compass bearing


2014-11-04

Thread
Alex Mandel

On 11/04/2014 04:55 AM, Zoltan Szecsei wrote:
> Hi,
> I need to do a field trip and take some photos.
> I've been googling around, but cannot find an app that will burn both
> GPS position _and compass bearing_ into either the image, or just the
> exif data for that image.
> 
> Anyone got any experience in this need?
> 
> Thanks & regards,
> Zoltan
> 
>

Maybe, http://geopaparazzi.github.io/geopaparazzi/
"georeferenced and orientated pictures"

And now my long rant before I remembered the above link...

GPS data is an on/off toggle on most Android devices. Bearing does
appear possible according to the exif specs, but in practice is rare.
http://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/GPS.html

However I don't see any obvious apps for telling the phone you want to
capture that. I'm also not sure all phones are capable of calculating
bearing when not moving.

So my suggested work around would be a GPS Logging application of which
there are several. Then you can pull the bearing calculation out after
the fact, if it was while moving.

If stationary, you might need to write your own app which lets users
indicate which way they were facing when taking a picture. For someone
who's made an Android application I don't think this is hard.
http://developer.android.com/guide/topics/sensors/sensors_overview.html
Indicates all version of Android support the Magentic sensor.

This example shows how to get the bearing from the API
https://www.codeofaninja.com/2013/08/android-compass-code-example.html
So GPS+Orientation+Camera should be all required.

Kinda busts my GPS logging idea, since the bearing information comes
from a different sensor than the GPS it won't be in the NMEA strings
even if you captured them.

Thanks,
Alex
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Re: [Qgis-user] QGIS 32 or 64-bit


2014-11-02

Thread
Alex Mandel

We should be clear in this conversation, all of these recommendations
apply to Windows only and may apply to the current version as later
versions might remove the remaining barriers to full 64 bit for everyone.

Linux - there's no reason to use 32 bit.
Mac - I'm not sure what the builds typically are.

Thanks,
Alex

On 11/02/2014 09:10 AM, Chris Crook wrote:
> On the other hand!  If you do not need to export large high resolution 
> compositions then I'd recommend the 32 bit version, as the python interface 
> used for the plugins can have issues with the 64 bit version (most still work 
> but some do not).
> 
> Chris
> 
> From: Nyall Dawson [nyall.daw...@gmail.com]
> Sent: 02 November 2014 23:26
> To: Lester Anderson
> Cc: qgis-user@lists.osgeo.org
> Subject: Re: [Qgis-user] QGIS 32 or 64-bit
> 
> On 2 November 2014 20:48, Lester Anderson 
> mailto:arctica1...@gmail.com>> wrote:
> Hi all,
> 
> Rather basic query, but is there a real advantage of the 64-bit version over 
> 32-bit when on say Windows 7/8 ? I use QGIS at home and work, and have 
> readily had multiple copies of QGIS running for separate projects and not 
> seen any real problems (subject to memory on the system of course).
> 
> 
> If you're trying to export large, high resolution compositions, than you'll 
> have much more luck using a 64 bit build. Otherwise the memory limitations 
> for 32 bit builds can be restrictive.
> 
> Nyall
> 
> 
> 
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Re: [Qgis-user] QGIS 2.6 projected graticules


2014-11-02

Thread
Alex Mandel

My hack was to write a short python script that does a more dense line
(You choose the spacing between lines, default nodes are every degree I
think).
https://github.com/wildintellect/pyGraticule

Then I cut it to extent and project it into the final projection I want.
The extra density makes it easier to label what you want to. However the
table values are always in Lat/Lon so you'll need to use the field
calculator to pull out the X/Y after projection if you wanted projected
coordinate labels.

Maybe someday I'll have time to add the idea to QGIS directly.

Thanks,
Alex

On 11/02/2014 06:17 AM, Lester Anderson wrote:
> Hi all
> 
> Part of the solution (or workaround) is to use the Vector ->Research Tools
> -> Vector Grid option
> This gives the lines reasonably well when projected, but the nodes need to
> be increased (densified) to give the curved latitudes etc.
> Does this sound reasonable?
> 
> Still have to label manually
> 
> So, not impossible to find a partial solution, but hopefully this will be
> built-in eventually. QGIS is a great piece of kit and I am sure it will
> gain momentum!
> 
> 
> On 2 November 2014 13:08, Ramon Andiñach  wrote:
> 
>>
>> On 02/11/2014, at 19:50 , Lester Anderson wrote:
>>
>>> Hi all,
>>>
>>> Still no built-in option in the composer for projected map graticules
>> (eg Polar stereographic, Lambert conformal etc). Still limited to linear
>> systems.
>>>
>>> Will this ever be implemented in QGIS, or is there a plugin that will
>> create projected map graticules for all projections (to display longitude
>> and latitude)?
>>>
>>> I have been using QGIS since v1.6 and have seen no changes on this
>> aspect.
>>
>> Well, no. Not no movement, but you might want to look into some of the new
>> features a bit before saying that it's not possible.
>>
>> This image https://www.dropbox.com/s/j8rjxb6om1ciuau/Polar.png?dl=0 is
>> about 2 minutes playing and has a grid on an arctic polar map. I don't
>> think it can be perfect, but it's a lot closer. Is that almost what you
>> where after?
>>
>> Significantly for you one of the nice developers[1] added a feature that
>> allows you to draw grids in different projections to the map canvas. It
>> might be worth asking him nicely what it would cost to have what you need
>> added (e.g. some work on the labels, and some way to show that missing 180
>> line.), and then banding together with some other folk that work in high
>> and low places to make it happen.
>>
>> -ramon.
>> [1] My thanks by the way. I realise that there's been an ongoing argument
>> about the accuracy of being able to do this (which I don't want to
>> restart), but sometimes this is what the client wants - and its nice to be
>> able to do it without too much mucking about.
>>
>>
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Re: [Qgis-user] Export WKT format


2014-10-20

Thread
Alex Mandel

That was my suspicion. Though since it's an OGR issue, you just need a
newer GDAL/OGR not necessarily newer QGIS.

Updating just GDAL/OGR depends on your operating system but should be
possible on most systems.

Thanks,
Alex

On 10/20/2014 12:34 PM, Junior Delaz wrote:
> Hi,
> I think the WKT issue is an OGR one :
> https://trac.osgeo.org/gdal/ticket/5508
> It should work in QGIS master
> 
> 2014-10-20 20:31 GMT+02:00 Alex Mandel :
> 
>> KML isn't a good choice, as it's always Lat/Lon WGS84.
>> GML might work, but give GeoJson a shot first - it's simpler than GML to
>> parse (actually little or no parsing required).
>>
>> Did you try ogr2ogr on the commandline to make sure it's not a bug in
>> the QGIS writer for long lines?
>>
>> Thanks,
>> Alex
>>
>> On 10/20/2014 11:11 AM, Andrew Gillett wrote:
>>> I wrote my parser for WKT as it was the quickest and simplest format to
>>> parse that I was aware of – I only need the country border data, and
>>> could see how to parse this just by looking at the file, whereas other
>>> formats would have needed more research.
>>>
>>> The problem is with exporting the WKT using a specified projection. At
>>> the moment I have to export an intermediate format to get the projection
>>> right, then load that back in and copy/paste for the WKT.
>>>
>>> I am now looking into using KML or GML instead.
>>>
>>>
>>> On 20/10/2014 18:26, Alex Mandel wrote:
>>>> That sounds like it's hitting some sort of line limit. Might be a bug in
>>>> OGR. You could try writing WKT to a column first, but it would have to
>>>> be in a layer type that supports long text fields.
>>>>
>>>> That said WKT is not a great format for complex geometries. Perhaps you
>>>> can tell us your goal and we can suggest another way to get there.
>>>>
>>>> Thanks,
>>>> Alex
>>>>
>>>> On 10/20/2014 10:21 AM, Andrew Gillett wrote:
>>>>> Thanks for the info. I've just tried this and there appears to be a bug
>>>>> in it. I'm using the country border data from here:
>>>>>
>>>>> http://www.naturalearthdata.com/downloads/10m-cultural-vectors/
>>>>>
>>>>> If, for example, I select Iceland and export as you suggested, the
>>>>> column for the polygon data is truncated. Only about 200 vertices are
>>>>> exported, as compared to around 3000 which are correctly present if I
>>>>> use the copy/paste method. The polygon data ends with an X coordinate
>>>>> but no Y coordinate, and the closing brackets and quote mark are also
>>>>> missing.
>>>>>
>>>>>
>>>>> On 20/10/2014 17:39, Matthias Kuhn wrote:
>>>>>> Hi Andrew,
>>>>>>
>>>>>> WKT is a format for geometries and not a file type. Therefore it is
>> not
>>>>>> possible to offer a save as WKT just like that. You can however easily
>>>>>> choose Comma Separated Value as export format and then choose AS_WKT
>> in
>>>>>> the Geometry combobox under layer options.
>>>>>>
>>>>>> Best regards,
>>>>>> Matthias
>>>>>>
>>>>>>
>>>>>> On 20.10.2014 18:35, Andrew Gillett wrote:
>>>>>>> It is possible to export in WKT format by copying then pasting into a
>>>>>>> text editor. However, there is no WKT option when exporting via Layer
>>>>>>> -> Save As. Is there a particular reason for this, or is there a
>>>>>>> development list where I could request this?
>>>>>>> ___
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>>>>>>> Qgis-user@lists.osgeo.org
>>>>>>> http://lists.osgeo.org/mailman/listinfo/qgis-user
>>>>> ___
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>>
>>
>> --
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>> http://wildintellect.com

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Re: [Qgis-user] Export WKT format


2014-10-20

Thread
Alex Mandel

KML isn't a good choice, as it's always Lat/Lon WGS84.
GML might work, but give GeoJson a shot first - it's simpler than GML to
parse (actually little or no parsing required).

Did you try ogr2ogr on the commandline to make sure it's not a bug in
the QGIS writer for long lines?

Thanks,
Alex

On 10/20/2014 11:11 AM, Andrew Gillett wrote:
> I wrote my parser for WKT as it was the quickest and simplest format to
> parse that I was aware of – I only need the country border data, and
> could see how to parse this just by looking at the file, whereas other
> formats would have needed more research.
> 
> The problem is with exporting the WKT using a specified projection. At
> the moment I have to export an intermediate format to get the projection
> right, then load that back in and copy/paste for the WKT.
> 
> I am now looking into using KML or GML instead.
> 
> 
> On 20/10/2014 18:26, Alex Mandel wrote:
>> That sounds like it's hitting some sort of line limit. Might be a bug in
>> OGR. You could try writing WKT to a column first, but it would have to
>> be in a layer type that supports long text fields.
>>
>> That said WKT is not a great format for complex geometries. Perhaps you
>> can tell us your goal and we can suggest another way to get there.
>>
>> Thanks,
>> Alex
>>
>> On 10/20/2014 10:21 AM, Andrew Gillett wrote:
>>> Thanks for the info. I've just tried this and there appears to be a bug
>>> in it. I'm using the country border data from here:
>>>
>>> http://www.naturalearthdata.com/downloads/10m-cultural-vectors/
>>>
>>> If, for example, I select Iceland and export as you suggested, the
>>> column for the polygon data is truncated. Only about 200 vertices are
>>> exported, as compared to around 3000 which are correctly present if I
>>> use the copy/paste method. The polygon data ends with an X coordinate
>>> but no Y coordinate, and the closing brackets and quote mark are also
>>> missing.
>>>
>>>
>>> On 20/10/2014 17:39, Matthias Kuhn wrote:
>>>> Hi Andrew,
>>>>
>>>> WKT is a format for geometries and not a file type. Therefore it is not
>>>> possible to offer a save as WKT just like that. You can however easily
>>>> choose Comma Separated Value as export format and then choose AS_WKT in
>>>> the Geometry combobox under layer options.
>>>>
>>>> Best regards,
>>>> Matthias
>>>>
>>>>
>>>> On 20.10.2014 18:35, Andrew Gillett wrote:
>>>>> It is possible to export in WKT format by copying then pasting into a
>>>>> text editor. However, there is no WKT option when exporting via Layer
>>>>> -> Save As. Is there a particular reason for this, or is there a
>>>>> development list where I could request this?
>>>>> ___
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>>>>> Qgis-user@lists.osgeo.org
>>>>> http://lists.osgeo.org/mailman/listinfo/qgis-user
>>> ___
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Re: [Qgis-user] Export WKT format


2014-10-20

Thread
Alex Mandel

That sounds like it's hitting some sort of line limit. Might be a bug in
OGR. You could try writing WKT to a column first, but it would have to
be in a layer type that supports long text fields.

That said WKT is not a great format for complex geometries. Perhaps you
can tell us your goal and we can suggest another way to get there.

Thanks,
Alex

On 10/20/2014 10:21 AM, Andrew Gillett wrote:
> Thanks for the info. I've just tried this and there appears to be a bug
> in it. I'm using the country border data from here:
> 
> http://www.naturalearthdata.com/downloads/10m-cultural-vectors/
> 
> If, for example, I select Iceland and export as you suggested, the
> column for the polygon data is truncated. Only about 200 vertices are
> exported, as compared to around 3000 which are correctly present if I
> use the copy/paste method. The polygon data ends with an X coordinate
> but no Y coordinate, and the closing brackets and quote mark are also
> missing.
> 
> 
> On 20/10/2014 17:39, Matthias Kuhn wrote:
>> Hi Andrew,
>>
>> WKT is a format for geometries and not a file type. Therefore it is not
>> possible to offer a save as WKT just like that. You can however easily
>> choose Comma Separated Value as export format and then choose AS_WKT in
>> the Geometry combobox under layer options.
>>
>> Best regards,
>> Matthias
>>
>>
>> On 20.10.2014 18:35, Andrew Gillett wrote:
>>> It is possible to export in WKT format by copying then pasting into a
>>> text editor. However, there is no WKT option when exporting via Layer
>>> -> Save As. Is there a particular reason for this, or is there a
>>> development list where I could request this?
>>> ___
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>>> Qgis-user@lists.osgeo.org
>>> http://lists.osgeo.org/mailman/listinfo/qgis-user
>>
> 
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Re: [Qgis-user] Non Earth projection


2014-09-30

Thread
Alex Mandel

If that's the case then you are correct, simply ignore the projection
system and everything will be in relative units to what you load. This
works fine for scanned/photo/hand-drawn maps, assuming you photographed
at 90 to the plane with a short lens that doesn't distort at the edges.
You can later georeference and reproject your local unknown coordinates
to match something else if you want.

I have done this for scanned maps, and it works fine. There is no need
to create a "Projection" for it at all.

If you're really dealing with somewhat imprecise paper drawings you may
want to georeference it first with Thin Plate Spline (which does
variable distortion correction). The digitize from the result in a known
CRS/SRS.

Thanks,
Alex


On 09/30/2014 10:08 AM, Mats Elfström wrote:
> Hi!
> I think that Priscilla does not mean another celestial body by 'non earth',
> but rather the old MapInfo concept of a non projected flat coordinate
> system. This is called a cartesian system, and would be useful in case QGIS
> is used to digitize scanned paper drawings for instance.
> In MapInfo, a cartesian table can be set up to a high resolution since such
> projects typically covers very small areas (printed drawings).
> Many years ago, when QGIS was still a toddler, I solved the problem by
> simply disregarding the projection factor since it would make a very small
> difference for a small area.
> But I did spend some time trying to create a flat projection. This failed,
> being a contradiction in terms.
> 
> Regards, Mats.E
> 
> 2014-09-30 18:06 GMT+02:00 Alex Mandel :
> 
>> On 09/30/2014 03:10 AM, Priscilla Maisie wrote:
>>> Hi,
>>> I need to work in a non earth map projection system. Can't locate the
>>> option on qgis. Is there a way I can create this?
>>>
>>> Regards,
>>> Priscilla
>>>
>>
>> Yes you can create your own projection in Settings->Custom CRS.
>> You'll need to create your own proj4 compatible string. Comparing a few
>> similar projections should help you figure out what you need.
>>
>> Note in recent versions of QGIS if you look in the Projection on the Fly
>> dialog, there are several Mars projections and Coordinate systems.
>>
>> Need more help, please provide more information about the planet
>> size/shape and type of projection.
>>
>> Other references, http://epsg.io and http://spatialreference.org
>>
>> Thanks,
>> Alex
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> 
> 
> 
> 
> 
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Re: [Qgis-user] Non Earth projection


2014-09-30

Thread
Alex Mandel

On 09/30/2014 03:10 AM, Priscilla Maisie wrote:
> Hi,
> I need to work in a non earth map projection system. Can't locate the
> option on qgis. Is there a way I can create this?
> 
> Regards,
> Priscilla
> 

Yes you can create your own projection in Settings->Custom CRS.
You'll need to create your own proj4 compatible string. Comparing a few
similar projections should help you figure out what you need.

Note in recent versions of QGIS if you look in the Projection on the Fly
dialog, there are several Mars projections and Coordinate systems.

Need more help, please provide more information about the planet
size/shape and type of projection.

Other references, http://epsg.io and http://spatialreference.org

Thanks,
Alex
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Re: [Qgis-user] [Solved] exporting text to Illustrator?


2014-09-19

Thread
Alex Mandel

I wasn't crazy Larry did get the feature in the 2.4 release, it's just
obscure how to use it right now.

The setting is in the Labelling dialog in the "Advanced Placement Settings"
See http://drive.dakotacarto.com/qgis/text-as-text_option.png

Uncheck - draw text as outlines

Now when you go to export SVG it will contain Text as Text.

For now the developers recommend you only toggle this option right
before exporting and that you recheck it after.

FYI, there is a weird grayed out box in the SVG export after you name
the file. Eventually it will do the same thing but you can decide
exactly at export.

Here's a video showing the procedure (sorry no mic so no audio)
http://www.youtube.com/watch?v=w2j-o8XhoI4&feature=em-upload_owner

Enjoy,
Alex

On 09/19/2014 11:26 AM, Alex Mandel wrote:
> On 09/18/2014 11:24 PM, Alex Mandel wrote:
>> On 09/18/2014 10:40 PM, Innisfree McKinnon wrote:
>>> Hello,
>>> I'm working on a map with a large number of labeled streets. I exported the
>>> map to Illustrator by saving as SVG. But the exported labels do not seem to
>>> have arrived as editable text. I have searched around on the web for a
>>> solution, but haven't found a solution. I saw this was a bug with the new
>>> labeling engine, but has it been solved? If not I will need to re-enter
>>> every label.
>>>
>>> thanks,
>>> Innisfree
>>>
>>
>> The ticket in question is http://hub.qgis.org/issues/3975
>>
>> And previous attempt at a fix
>> https://github.com/qgis/QGIS/pull/1096#issuecomment-39040544
>> and some more comments on a merge request.
>> https://github.com/qgis/QGIS/pull/1286
>>
>> So yes looks the like bug is still open, but at the same time it looks
>> like the code is in, can't tell if 2.4 or if you need a nightly build.
>> It is also unclear if there is a dialog to set the export format or if
>> you have manually tweak the qgs project file.
>>
>> Larry is the one who will know.
>>
>> Thanks,
>> Alex
>>
> 
> Reading over it, I'm pretty sure the fix is in the Master version (aka
> development builds).
> 
> Looks like you can try it easily on Mac with no install (since you
> already have the frameworks)
> http://qgis.dakotacarto.com/
> 
> Thanks,
> Alex
> 
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Re: [Qgis-user] exporting text to Illustrator?


2014-09-19

Thread
Alex Mandel

On 09/18/2014 11:24 PM, Alex Mandel wrote:
> On 09/18/2014 10:40 PM, Innisfree McKinnon wrote:
>> Hello,
>> I'm working on a map with a large number of labeled streets. I exported the
>> map to Illustrator by saving as SVG. But the exported labels do not seem to
>> have arrived as editable text. I have searched around on the web for a
>> solution, but haven't found a solution. I saw this was a bug with the new
>> labeling engine, but has it been solved? If not I will need to re-enter
>> every label.
>>
>> thanks,
>> Innisfree
>>
> 
> The ticket in question is http://hub.qgis.org/issues/3975
> 
> And previous attempt at a fix
> https://github.com/qgis/QGIS/pull/1096#issuecomment-39040544
> and some more comments on a merge request.
> https://github.com/qgis/QGIS/pull/1286
> 
> So yes looks the like bug is still open, but at the same time it looks
> like the code is in, can't tell if 2.4 or if you need a nightly build.
> It is also unclear if there is a dialog to set the export format or if
> you have manually tweak the qgs project file.
> 
> Larry is the one who will know.
> 
> Thanks,
> Alex
> 

Reading over it, I'm pretty sure the fix is in the Master version (aka
development builds).

Looks like you can try it easily on Mac with no install (since you
already have the frameworks)
http://qgis.dakotacarto.com/

Thanks,
Alex

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Re: [Qgis-user] exporting text to Illustrator?


2014-09-18

Thread
Alex Mandel

On 09/18/2014 10:40 PM, Innisfree McKinnon wrote:
> Hello,
> I'm working on a map with a large number of labeled streets. I exported the
> map to Illustrator by saving as SVG. But the exported labels do not seem to
> have arrived as editable text. I have searched around on the web for a
> solution, but haven't found a solution. I saw this was a bug with the new
> labeling engine, but has it been solved? If not I will need to re-enter
> every label.
> 
> thanks,
> Innisfree
> 

The ticket in question is http://hub.qgis.org/issues/3975

And previous attempt at a fix
https://github.com/qgis/QGIS/pull/1096#issuecomment-39040544
and some more comments on a merge request.
https://github.com/qgis/QGIS/pull/1286

So yes looks the like bug is still open, but at the same time it looks
like the code is in, can't tell if 2.4 or if you need a nightly build.
It is also unclear if there is a dialog to set the export format or if
you have manually tweak the qgs project file.

Larry is the one who will know.

Thanks,
Alex

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Re: [Qgis-user] Interpolation


2014-09-18

Thread
Alex Mandel

Yes, that's exactly the use case for Kite/Balloon photography.
See https://sites.google.com/site/mtobiasresearch/diy-remote-sensing-1

We recently tried the OpenDroneMap on some of our photos:
http://smathermather.wordpress.com/2014/09/16/opendronemap-art-and-science/

Thanks,
Alex

On 09/18/2014 11:56 AM, Michael.Dodd wrote:
> Sounds very interesting.
> I am trying to map the ridge and furrow so that I can see how plants are 
> distributed on them.  I have been recording the plants with the high accuracy 
> gps so have these locations to cm level accuracy but not been able to put 
> them on a model of the R&F itself.  If the photography is high enough 
> resolution and taken from low enough the individual plants themselves might 
> show up.
> ____
> From: Alex Mandel [tech_...@wildintellect.com]
> Sent: Thursday, September 18, 2014 7:21 PM
> To: Michael.Dodd; Andrew Harfoot; qgis-user@lists.osgeo.org
> Subject: Re: [Qgis-user] Interpolation
> 
> All the rage at http://2014.FOSS4g.org - Structure From Motion.
> Basically using airphotos to build a 3d mesh model of an area with
> classic photogrammetry calculations automated. Photos need not be from
> directly overhead.
> 
> Specifically see the talks by Stephen Mather and Aaron Racicot.
> 
> The open source option are not quite 100% there yet (Stephen's talk on
> OpenDroneMap) but there is a $170 program PhotoScan that's an option
> (See Aaron's talk).
> 
> Thanks,
> Alex
> 
> PS: I use cheap cameras on Kites for sub-centimeter photography.
> 
> On 09/18/2014 10:58 AM, Michael.Dodd wrote:
>> Yes had thought about this and nearly got Leica to test out their latest 
>> laser scanner a couple of years ago but land owner was frightened it might 
>> cause some kind of damage to the area so it never happened.
>>
>>
>> 
>> From: Andrew Harfoot [a...@geodata.soton.ac.uk]
>> Sent: Thursday, September 18, 2014 2:46 PM
>> To: qgis-user@lists.osgeo.org
>> Subject: Re: [Qgis-user] Interpolation
>>
>> Hi Michael,
>>
>> Off the top of my head, but have you looked into a laser scanner mounted on 
>> some sort of aerial platform such as a cherry picker? Not sure whether the 
>> platform would be stable enough.
>>
>> Alternatively a low level UAV flight may provide a detailed enough DTM 
>> through stereo imagery analysis.
>>
>> Cheers,
>>
>> Andy
>>
>> On 18/09/2014 10:43, Michael.Dodd wrote:
>> Any suggestions as to the best way to survey and interpolate ridge and 
>> furrow grassland that is not on a flat plane?
>> I have tried various methods without success.
>>
>> The ridge and furrow area that I want to map is about 120mx120m, the ridge 
>> and furrow pattern is distinct with about 0.5m or difference between ridge 
>> ht and furrow base but the pattern has a slight curve towards one end and 
>> the land is not flat.  If you are not sure what ridge and furrow looks like 
>> then there is an example at 51.9827, -0.9135, the stripes are clearly 
>> visible on the google earth image.
>>
>> Mapping can be done with cm level dgps but does this require many tens of 
>> thousands of points to be recorded. Or can fewer points be recorded and qgis 
>> interpolation somehow be told to interpolate along the ridge and furrow then 
>> fill in the area between them with some sort of curve. The actual curve is 
>> also problematic as the ridge top tends to be flattened and not a smooth 
>> sine wave.  I don't have good LIDAR of the area but even that resolution may 
>> not be good enough.
>>
>> -- The Open University is incorporated by Royal Charter (RC 000391), an 
>> exempt charity in England & Wales and a charity registered in Scotland (SC 
>> 038302). The Open University is authorised and regulated by the Financial 
>> Conduct Authority.
>>
>>
>> ___
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>> http://lists.osgeo.org/mailman/listinfo/qgis-user
>>
>>
>>
>> --
>> Andy Harfoot
>>
>> GeoData Institute
>> University of Southampton
>> Southampton
>> SO17 1BJ
>>
>> Tel:  +44 (0)23 8059 2719
>> Fax:  +44 (0)23 8059 2849
>>
>> www.geodata.soton.ac.uk<http://www.geodata.soton.ac.uk>
>>
>>
>>
>>
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> 
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Re: [Qgis-user] Interpolation


2014-09-18

Thread
Alex Mandel

All the rage at http://2014.FOSS4g.org - Structure From Motion.
Basically using airphotos to build a 3d mesh model of an area with
classic photogrammetry calculations automated. Photos need not be from
directly overhead.

Specifically see the talks by Stephen Mather and Aaron Racicot.

The open source option are not quite 100% there yet (Stephen's talk on
OpenDroneMap) but there is a $170 program PhotoScan that's an option
(See Aaron's talk).

Thanks,
Alex

PS: I use cheap cameras on Kites for sub-centimeter photography.

On 09/18/2014 10:58 AM, Michael.Dodd wrote:
> Yes had thought about this and nearly got Leica to test out their latest 
> laser scanner a couple of years ago but land owner was frightened it might 
> cause some kind of damage to the area so it never happened.
> 
> 
> 
> From: Andrew Harfoot [a...@geodata.soton.ac.uk]
> Sent: Thursday, September 18, 2014 2:46 PM
> To: qgis-user@lists.osgeo.org
> Subject: Re: [Qgis-user] Interpolation
> 
> Hi Michael,
> 
> Off the top of my head, but have you looked into a laser scanner mounted on 
> some sort of aerial platform such as a cherry picker? Not sure whether the 
> platform would be stable enough.
> 
> Alternatively a low level UAV flight may provide a detailed enough DTM 
> through stereo imagery analysis.
> 
> Cheers,
> 
> Andy
> 
> On 18/09/2014 10:43, Michael.Dodd wrote:
> Any suggestions as to the best way to survey and interpolate ridge and furrow 
> grassland that is not on a flat plane?
> I have tried various methods without success.
> 
> The ridge and furrow area that I want to map is about 120mx120m, the ridge 
> and furrow pattern is distinct with about 0.5m or difference between ridge ht 
> and furrow base but the pattern has a slight curve towards one end and the 
> land is not flat.  If you are not sure what ridge and furrow looks like then 
> there is an example at 51.9827, -0.9135, the stripes are clearly visible on 
> the google earth image.
> 
> Mapping can be done with cm level dgps but does this require many tens of 
> thousands of points to be recorded. Or can fewer points be recorded and qgis 
> interpolation somehow be told to interpolate along the ridge and furrow then 
> fill in the area between them with some sort of curve. The actual curve is 
> also problematic as the ridge top tends to be flattened and not a smooth sine 
> wave.  I don't have good LIDAR of the area but even that resolution may not 
> be good enough.
> 
> -- The Open University is incorporated by Royal Charter (RC 000391), an 
> exempt charity in England & Wales and a charity registered in Scotland (SC 
> 038302). The Open University is authorised and regulated by the Financial 
> Conduct Authority.
> 
> 
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> 
> 
> --
> Andy Harfoot
> 
> GeoData Institute
> University of Southampton
> Southampton
> SO17 1BJ
> 
> Tel:  +44 (0)23 8059 2719
> Fax:  +44 (0)23 8059 2849
> 
> www.geodata.soton.ac.uk
> 
> 
> 
> 
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Re: [Qgis-user] Accuracy of image export dependent on CPU?


2014-09-18

Thread
Alex Mandel

On 09/18/2014 10:27 AM, RKaplan wrote:
> I've developed an AutoCAD based application that imports geo aligned
> image markers (blocks) into a plan using EXIF metadata from images taken
> by GPS enabled cameras.
> 
>  
> 
> The base drawing consists of a JPEG image exported from QGIS (Chugiak
> 2.4.0 Windows XP 32, Windows 7 32 and Windows 7 64).  The images are
> exported using various NAD27 State Plane CRSs.
> 
>  
> 
> We're running into a situation where, on some of our systems, the image
> and world file generated by QGIS is off by up to 120'.  The same map and
> data, exported on other systems, will be very close - within a few feet
> of the camera image markers.
> 
>  
> 
> I've only been able to test this on a half dozen systems, but the only
> ones that generate an accurate JPEG/world file are running Xeon based
> processors.
> 
>  
> 
>  
> 
> Rick Kaplan
> 
> CAD Systems Administrator
> 

So you're using Project -> Save as Image?
Projection on the fly enabled?

Got an image some of us can test with?

Thanks,
Alex
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Re: [Qgis-user] Displaying vector maps from a Grass Database


2014-09-05

Thread
Alex Mandel

On 09/05/2014 08:13 AM, manuel.martin wrote:
> Hi all,
> 
> when I try displaying, in Qgis 2.0.1, a vector map from a Grass 7
> database, Qgis fails at detecting layers and gives me back a "No layers
> available in this map". Any idea why this happens and how to bypass this?
> 
> My OS is Ubuntu 14.04 but I had the same problem with Ubuntu 12.04.
> 
> Any help appreciated,  Manuel
> 


Might be related to this
http://trac.osgeo.org/gdal/ticket/2953

I suspect that you're just missing the GRASS 7 driver from GDAL/OGR.
So you might need to upgrade QGIS(2.2+) and/or GDAL (1.11+) from the
qgis.org or the ubuntugis repos.

Thanks,
Alex

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Re: [Qgis-user] openstreetmap problem


2014-08-29

Thread
Alex Mandel

On 08/29/2014 11:03 AM, Innisfree McKinnon wrote:
> Hello all,
> I'm a QGIS newbie. I'm working on a project involving making a map of the
> Croix-Rousse in Lyon France. I need the street grid and a few landmarks
> such has churches, parks, and plazas. I'm having frequent shutdowns when
> working with the openstreetmap layers within QGIS.
> 
> I just downloaded the openstreetmap data by going to Vector, OpenStreetMap,
> Download Data...I probably left all the settings on default. I'm basically
> trying to select the items I need for my map and creating new (simplified)
> layers. My project shuts down frequently, sometimes in the middle of a
> selection process, sometimes just when looking at the data.
> 
> Any ideas what I am doing wrong?
> 
> thanks,
> Innisfree
> 

Just to clarify Innisfree, what version of Mac OS X and which version of
QGIS (and where did you get the installers I assume Kyngchaos)?

Also in your estimate or from the dialog how big/what is the bounding
box you tried?

Thanks,
Alex

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Re: [Qgis-user] unable to open the QGIS Tab


2014-08-29

Thread
Alex Mandel

On 08/29/2014 05:42 AM, Paolo Cavallini wrote:
> Il 29/08/2014 14:20, Agrawal, Dinesh (NSN - IN/Kolkata) ha scritto:
> 
>> Please suggest where I am doing mistake, my other friends are using this.
> 
> Please, first of all upgrade to QGIS 2.4.
> All the best.
> 

Well to be more clear, use the following links to download a newer version:

Standalone Installer
http://qgis.org/downloads/QGIS-OSGeo4W-2.4.0-1-Setup-x86.exe

OR OSGeo4w Installer
http://download.osgeo.org/osgeo4w/osgeo4w-setup-x86.exe

When in doubt always go to http://qgis.org for your downloads.

Thanks,
Alex
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Re: [Qgis-user] Why is QGIS 2.4 using Spatialite 3 instead of Saptialite 4?


2014-08-15

Thread
Alex Mandel

On 08/15/2014 07:58 PM, undata12 wrote:
> I am using QGIS 2.4 on Ubuntu 12.04.  QGIS reports that it is using
> Spatialite 3.  Spatialite 4 is a dependency of Grass and is installed. 
> Shouldn't QGIS 2.4 be using Spatialite 4 also?  I get an error when I try to
> connect to a Spatialite database that I need version 4 or later.
> 
> Thank you.
> 
> 

What repo did you install from. Using Ubuntugis-unstable PPA and have
Spatialite 4.1.1

Thanks,
Alex

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Re: [Qgis-user] QGIS from External drive ?


2014-08-11

Thread
Alex Mandel

You might want to contact Hamish in New Zealand.

He also does ship based GIS, and is a core contributor to OSGeo-Live
partly because he uses it on research missions. It can be run from an
external drive (including flash drive), it just requires rebooting the
computer.

Thanks,
Alex


On 08/11/2014 12:52 PM, Falk Huettmann wrote:
> Wow, thanks so much.
> That would be a big help.
> (We need it on a ship, and installations there are weird).
> So a plain PC laptop run via an external drive would be the way to go.
> 
> 
> Thanks once more; kindly
> 
> F.
> 
> 
> 
> *From:* luca forestello [mailto:fra...@gmail.com]
> *Sent:* Monday, August 11, 2014 1:25 AM
> *To:* qgis-user@lists.osgeo.org; fhuettm...@alaska.edu
> *Subject:* Re: [Qgis-user] QGIS from External drive ?
> 
> 
> 
> On Windows,
> you can try this version of Qgis 2.4 that not requires installation and
> does not require administrative privileges.
> 
> http://webgis.arpa.piemonte.it/pub/QGIS_portable_Chugiak_24_32bit.zip
> 
> You need to download the file "qgis_portable.zip", unzip the file (for
> example, C:\Program Files\Qgis_portable, USB or external HD  should be the
> same thing).
> At the end of this operation, which can take several minutes, in the folder
> "qgis_portable", you will find a new folder "QGIS" and a new file
> "qgis.bat" (MS-DOS Batch File).
> To start Qgis 2.4 simply double-click on the file "qgis.bat."
> 
> Kind regards
> Luca Forestello
> 
> 
> 
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Re: [Qgis-user] Plugin's


2014-08-08

Thread
Alex Mandel

You'll need to be a little more specific. A few plugins are known to
have broken in the upgrade from 2.2 to 2.4

Sometimes even once the fix is released, you actually need to manually
delete the old plugin files and reinstall the plugin for it to work
right. I believe this technique may apply to OpenLayers.

Please be more specific about which plugins stopped work, what version
you are using, what operating system, did they stop working on upgrade
and are you receiving error messages or can you describe how the plugins
are failing?

Thanks,
Alex

On 08/08/2014 07:36 AM, Zeke Davidson wrote:
> Any explanation for why several plugin's have stopped working? Openlayers 
> among them.
> 
> Zeke Davidson
> Conservation Biologist 
> davidson.z...@gmail.com


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Re: [Qgis-user] QGIS from External drive ?


2014-08-06

Thread
Alex Mandel

You have 3 options:

1. Portable GIS http://archaeogeek.com/portable-gis.html It may or may
not work without elevated priveleges on the Windows machine (varies by
app is my understanding).

2. An OSGeo4w install can be made to a stick and might work without
registry tweaks.

3. If the bios isn't locked you can boot a usb stick with OSGeo-Live
http://live.osgeo.org

But really you should have a discussion with the lab management about
installing the applications you want. I have successfully gotten my
university GIS lab to install both OSGeo4w and VirtualBox w/ OSGeo-Live.

Thanks,
Alex

On 08/06/2014 11:23 AM, Falk Huettmann wrote:
> Dear Colleagues,
> 
> 
> 
> I have a quick question (I was not able to achieve the below despite
> trying):
> 
> Could I run QGIS from an external drive (like a plug-in drive) ?
> 
> I would need that instead of a regular c:drive installation on a PC.
> 
> How is that done ?
> 
> And if that is not possible, what would be the alternatives ?
> 
> 
> 
> (we face the situation that in a lab the PCs are not allowed to download
> and install anything etc etc.
> 
> I know that OpenOffice can run from a USB stick fine, and I was told that
> QGIS can do similar, yes ?)
> 
> 
> 
> Thanks so much for any feedback.
> 
> Kind regards
> 
>F.
> 
> 
> 
> Falk Huettmann PhD, Associate Professor
> 
> -EWHALE lab- Biology and Wildlife Dept., Institute of Arctic Biology
> 
> 419 IRVING I, University of Alaska Fairbanks AK 99775-7000 USA
> 
> Email fhuettm...@alaska.edu  Phone 907 474 7882 Fax 907 474 6716
> 
> 
> 
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Re: [Qgis-user] (no subject) - Compressing Raster


2014-07-29

Thread
Alex Mandel

On 07/29/2014 10:31 AM, Etienne Tourigny wrote:
> On Tue, Jul 29, 2014 at 1:10 PM, Alex Mandel 
> wrote:
> 
>> On 07/29/2014 01:45 AM, Peter Versteeg wrote:
>>> thank you very much for the email.
>>>
>>>
>>>
>>> I think I am almost there. I have set the compression to LZW and did a
>>> export and I did a export on high compression. Both are still really big.
>>>
>>>
>>>
>>> in your first mail you explained about:
>>>
>>>
>>>
>>> The type of number stored dictates a large amount of
>> overhead,
>>> there is
>>> a huge difference between Integer and Float.
>>>
>>> -co COMPRESS=LZW  -ot Int16
>>>
>>> See http://www.gdal.org/gdal_translate.html for options.
>>> Pick the
>>> smallest type of number storage that holds your data
>>> correctly. Most
>>> GDAL tools will default to Float, that is likely the
>>> difference.
>>>
>>>
>>>
>>> In the save raster as window where i also set the compress to LZW i did
>> try
>>> to ad a line but i do not know what to type.
>>>
>>> name: Int value 16 or name ot value int16 all do not work.
>>>
>>>
>>>
>>> Can you tell me what line to write
>>>
>>>
>>>
>>> gr Peter
>>>
>>
>> As I said in my previous email:
>> If that still isn't enough use GDAL Translate found on the Raster menu
>> under Conversion. There you will be able to set all the possible options.
>>
>> Basically the options are not in the Save As dialog. I will talk to the
>> developers about adding more options.
>>
> 
> You can do pretty much the same things as in the GDAL Translate tool - see
> the "Creation Options" group box. What is missing exactly?

-ot is missing, which lets you set the number type int/float etc

I have not tested if the save as dialog allows this, I was guessing that
only -co options were allowed in the Create Options section. -ot is not
a -co option, its a separate flag for gdal.

Thanks,
Alex




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Re: [Qgis-user] (no subject) - Compressing Raster


2014-07-29

Thread
Alex Mandel

On 07/29/2014 01:45 AM, Peter Versteeg wrote:
> thank you very much for the email.
> 
> 
> 
> I think I am almost there. I have set the compression to LZW and did a
> export and I did a export on high compression. Both are still really big.
> 
> 
> 
> in your first mail you explained about:
> 
> 
> 
> The type of number stored dictates a large amount of overhead,
> there is
> a huge difference between Integer and Float.
> 
> -co COMPRESS=LZW  -ot Int16
> 
> See http://www.gdal.org/gdal_translate.html for options.
> Pick the
> smallest type of number storage that holds your data
> correctly. Most
> GDAL tools will default to Float, that is likely the
> difference.
> 
> 
> 
> In the save raster as window where i also set the compress to LZW i did try
> to ad a line but i do not know what to type.
> 
> name: Int value 16 or name ot value int16 all do not work.
> 
> 
> 
> Can you tell me what line to write
> 
> 
> 
> gr Peter
> 

As I said in my previous email:
If that still isn't enough use GDAL Translate found on the Raster menu
under Conversion. There you will be able to set all the possible options.

Basically the options are not in the Save As dialog. I will talk to the
developers about adding more options.

Please reply to the list when replying.

Thanks,
Alex
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