Re: [Qgis-user] Export gpx?

[Ramon Andinach via Qgis-user]

Hi David,

The GPX format is only able to have points and lines. You’ll need to convert 
the polygon into a line first, and there is something in the vector menu that 
will do this.
(Points map to waypoints, lines map to tracks.)

Regards,
Ramon.

> On 25 Jul 2022, at 03:52, David Witton via Qgis-user 
>  wrote:
> 
> I'm trying to transfer the boundary of a property that is displayed in a 
> vector layer in QGIS 3.16.15  into a mapping software. My first thought is to 
> select the row in the attribute table, then export it as a .gpx file. 
> 
> However I'm getting an error "Geometry type of 'Multi Polygon' not supported 
> in GPX.
> 
> Is what I'm trying to do possible using another format?
> 
> -- 
> David Witton
> 307 413 2072
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Re: [Qgis-user] Click and drag files to QGIS 3.22 canvas

[Ramon Andinach]

Hi Johanna,

(At least for me) that depends what I’m dropping.

If it’s a file type with a single geometry it goes straight in.
For example shp or a zip file with a single shape file inside

If it’s a file type with multiple geometries or a container with multiple 
possibilities then you’ll get asked.
For example GPX or zip file with shape and explanatory pdf inside (because 
there isn’t an obvious way of telling if the pdf is georeferenced and you might 
then want to load it).

Does that help?

Ramon.

> On 15 Feb 2022, at 10:44, Johanna Botman  wrote:
> 
> Hi,
> In the past, I was able to click and drag files from File Explorer on to my 
> QGIS canvas. Today, after installing QGIS 3.22, when I try to do that, I get 
> a dialogue box with Select Items to Add in the header. The beauty of the drag 
> and drop was that it didn’t need that confirmation.
> Is there a way to turn that off?
>  
>  
> Johanna Botman
>  
> Assets / GIS Officer – Melton City Council
>  
>  
>  
>  
>  
> 
> ***
> The information in this message is privileged and confidential, intended only 
> for the use of the individual or entity named above. If you are not the 
> intended recipient you are hereby notified to delete the message and that any 
> dissemination, copying or use of its content is strictly prohibited. If you 
> have received this message in error please notify the Melton City Council.
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Re: [Qgis-user] using georferenced PDF map files as layers

[Ramon Andinach]

This is probably a rather crude approach, but. I’d probably convert the pdfs to 
an image (jpeg, tiff, etc) and combine them first. Then georeference the 
combined image.

Regards,
Ramon.

> On 8 Jul 2021, at 05:47,   
> wrote:
> 
> Hi,  I have the latest ver. of QGIS, I have imported two georeferenced PDF 
> maps but need to delete the boarders and legends to stitch the two into one 
> map while retaining the georef. Data for use in Avenza.  Cannot find in the 
> excellent docs and tutorials. Can anyone advise please.
> Keep up the good work folks.
>  
> Kind regards,
> Robert M. Dare  OAM
> robertd...@tpg.com.au   Mob. 0428503385
>  
> 
>  
> 
>  Virus-free. www.avg.com 
> 
>  
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Re: [Qgis-user] Displaying vertical cross sections in QGIS 3D

[Ramon Andinach]

Hi,

I think, rather than generating z profiles from a raster, Grant is wanting to 
actually display a raster in z-x or z-y (ideally both) space - with an end 
point of something like this:
https://geodimensional.com/user/pages/03.products/02.rock-mapper/02._rock-mapper-features/screensho...@4x.png
 


Grant, please correct me if I’ve got it wrong.

Regards,
Ramon.

> On 19 Nov 2020, at 11:29, Nicolas Cadieux  wrote:
> 
> Hi,
> 
> Not sure I quite follow but have you looked at the profile tool plugin?  That 
> could be a start. You can have multiple profiles if you multiple rasters.  
> That would not solve the 3D aspect of your question. I tend to go to 
> CloudCompare for 3D.  I Haven’t played much with 3D in QGIS yet...
> 
> Good luck!
> 
> https://plugins.qgis.org/plugins/profiletool/ 
> 
> 
> Nicolas Cadieux
> https://gitlab.com/njacadieux 
> 
>> Le 18 nov. 2020 à 19:55, Grant Boxer  a écrit :
>> 
>> Are we able to display vertical raster images in 3D? In particular I want 
>> to be able to bring in raster cross sections with XYZ coordinates for the 
>> four corner points so I can display them vertically in 3D underneath geology 
>> for example. Any thoughts?
>> 
>> Cheers Grant
>> 
>> 
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Re: [Qgis-user] Displaying two or more labels(fields) in a Map

[Ramon Andinach]

Hi Jean,

Have a look in the layer’s symbology for Labels. There’s a walk through some 
other parts of the symbology in here:  
https://docs.qgis.org/3.10/en/docs/training_manual/basic_map/symbology.html 


(And maybe have a look for other things in the training manual that might be 
useful too?)

Regards,
Ramon.

> On 16 Aug 2020, at 18:44, jean Lukusa  wrote:
> 
> Hi all.
> I have created two fields in my shapefile attribute table.
> How Can I do to display all fields (labels) on  the Map ?
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Re: [Qgis-user] Where is the read me for MacOS installer referred to install 3.1.12 securely?

[Ramon Andinach]

It’s a frequently asked question.

QGIS hasn’t been officially checked by Apple (notarised), so macOS puts up the 
error.

If you trust it, then you can add an exemption by right clicking 
(control-click) on the QGIS.app and select open.



I think the readme comment relates to the alternate build, when you really do 
need to read the readme.


> On 7 Apr 2020, at 19:32, Headington Heritage  
> wrote:
> 
> Hi
>  
> I have just downloaded QGIS, MAC OS 3.12 and it fails to verify – “App can’t 
> be opened because Apple can’t check it for Malicious Software”
>  
> The installation page states:
>  
> Mac Installer Packages for macOS El Capitan (10.11) and newer.
> 
> Installation instructions are in the Read Me on the disk image. 
> 
>  
> But there are about 20 Readmes , and going through these I cannot see one the 
> describes how to do this, reluctant to just use generic methods to bypass the 
> security.
>  
> Also, it took quite a while to get into the dmg image and open it to view 
> contents.
>  
> Any help as to the safest way to install would appreciated!
>  
>  
>  
> Thanks
>  
>  
> Mark
> 
> Headington Heritage, A personal blog
>  
> Visit  : www.headingtonheritage.org.uk 
> Email: headingherit...@outlook.com 
> 
> Follow me on Twitter: @headingheritag
>  
>  
> Thanks
>  
>  
> Mark
> 
> Headington Heritage, A personal blog
>  
> Visit  : www.headingtonheritage.org.uk 
> Email: headingherit...@outlook.com 
> 
> Follow me on Twitter: @headingheritage 
>  
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Re: [Qgis-user] QGIS 3.10 can't be opened on Mac?

[Ramon Andinach]

No, it’s MacOS being paranoid.

"Just hold Ctrl or right-click on it in Finder and select Open.” - Garry 
Sherman.


Ramon.

(Is it possible to have this note added to the download page, please?)

> On 12 Mar 2020, at 12:52, Yann Troutet  wrote:
> 
> Hello all,
> 
> I'm not a Mac user, but I teach some remote sensing in QGIS. One of my 
> students has attempted to install 3.10 on his Mac and ran into this error 
> (screenshot below).
> 
> Can anyone help troubleshoot? Is this really a software issue? Would 
> installing an earlier version circumvent this problem (3.4 maybe)?
> 
> Many thanks,
> 
> Yann
> 
> 
> 
> YANN TROUTET. M.Env.
> GIS & Remote Sensing Instructor
> School of Environment and Geomatics
> Selkirk College
> t. 250.365.7292  | 1.888.953.1133 ; ext. 
> 21828
> ytrou...@selkirk.ca 
> Together we build remarkable futures.
> Selkirk College acknowledges the traditional territories of the Sinixt 
> (Lakes),
> the Syilx (Okanagan), the Ktunaxa, and the Secwépemc (Shuswap) peoples.
> 
> 
> 
> 
> 
> -- 
> This message has been scanned for viruses and 
> dangerous content by MailScanner , and is 
> believed to be clean.
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Re: [Qgis-user] “…can’t be opened because Apple cannot check it for malicious software”

[Ramon Andinach]

"Just hold Ctrl or right-click on it in Finder and select Open.” - Garry 
Sherman.



(I’m beginning to think a note saying this on the download page would be a good 
idea)

ramon.

> On 15 Feb 2020, at 06:43, dsuc...@citycomforts.com 
>  wrote:
> 
> Hello,
> 
> Trying to install QGIS 3.10
> On Mac OS Catalina 10.15.3
> And I get this 
> “…can’t be opened because Apple cannot check it for malicious software”
> (screenshot attached)
> 
> Any suggestions?
> 
> Thanks!
> 
> 
> 
> 
> 
> __
> DMS Real Estate & Planning
> 206 355-4442 cell & text
> 
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Re: [Qgis-user] QGIS 6.3 for macOS 10.14.5 : HELP

[Ramon Andinach]

Hi Nuno,

Glad it’s mostly working.

QGIS (and its tools) slowly gets better at noticing invalid layers, and there 
are a lot of changes between these two versions. I’d  run one of the geometry 
checkers over your layer, eg.  Vector -> Geometry Tools -> Check Validity, and 
see if that shows up anything.
If that doesn’t show anything I'm probably out, but maybe one of the others 
could help as this isn’t a Mac specific error.

Regards,
Ramon.

> On 22 May 2019, at 09:07, Nuno Manuel de Figueiredo de Santos Loureiro 
>  wrote:
> 
> Hi Ramon,
> 
> Many thanks.
> I followed your recommendations.
> However a few issues remain.
> William wrotes:
> /Library/Frameworks/Python.framework/Versions/3.6/bin:/Library/Frameworks/GDAL.framework/Versions/2.3/Programs:
> in the step by step
> But he also says that GDAL is 2.4 and not 2.3.
> 
> I checked in my computar and I have GDAL 1.11, 2.1, GDAL 2.2 and GDAL 2.4.
> I believe that GDAL 1.11 and 2.1 is needed for QGIS 2.18.23, that GDAL 2.2 is 
> not needed and that GDAL 2.4 is needed for QGIS 3.6.2.
> Is this true?
> 
> After, I changed the above line to
> /Library/Frameworks/Python.framework/Versions/3.6/bin:/Library/Frameworks/GDAL.framework/Versions/2.4/Programs:
> (only 2.3 to 2.4)
> 
> Finally the Merge a few rasters works well ;-)
> 
> But the following step, the Clip a raster using a mask layer is not working.
> Instead I received the following message:
> 
> ERROR 1: Cutline polygon is invalid.
> 
> Note that the same task (Clip a raster using a mask layer) in QGIS 2.18.23 
> (using the same input layers) runs without any kind of troubles.
> 
> Ramon, have you any additional suggestions???
> 
> many thanks for your attention,
> 
> Nuno
>  
> -x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-
> Nuno de Santos Loureiro (PhD)
> Faculdade de Ciências e Tecnologia - DCTMA - Ed. 8
> Universidade do Algarve
> Campus de Gambelas
> 8005-139 FARO   (Portugal)
> -x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-
> From: Ramon Andinach 
> Sent: 22 May 2019 00:43
> To: Nuno Manuel de Figueiredo de Santos Loureiro
> Cc: qgis-user
> Subject: Re: [Qgis-user] QGIS 6.3 for macOS 10.14.5 : HELP
>  
> Hi Nuno,
> 
> You need to set some environmental variables, so that the GDAL binaries can 
> be found.
> William provides a nice step by step in file Read Me.txt
> 
> If you’ve already deleted the dmg I’ll paste it into a reply, but you should 
> read Read Me.txt because it contains other useful bits of information besides 
> the answer to your question.
> 
> Regards,
> Ramon.
> 
>> On 22 May 2019, at 07:14, Nuno Manuel de Figueiredo de Santos Loureiro 
>> mailto:nlou...@ualg.pt>> wrote:
>> 
>> Hi all,
>> 
>> I'm a very regular (happy) user of QGIS 2.18.23.
>> Recently I installed QGIS 6.3.2 on my Mac with macOS 10.14.5.
>> Several tasks are running very well but when I tried to merge a few rasters 
>> I was not able to do that and I received the following message:
>> 
>> GDAL command output:
>> /bin/sh: gdal_merge.py: command not found
>> 
>> Also, when I tried to clip a raster using a mask layer I was not able to do 
>> that and I received the following message:
>> 
>> GDAL command output:
>> /bin/sh: gdalwarp: command not found
>> 
>> What is missing or wrong?
>> Can somebody help me with some tips to fix this issue?
>> 
>> Many thanks in advance, 
>> 
>> Nuno
>>  
>> -x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-
>> Nuno de Santos Loureiro (PhD)
>> Faculdade de Ciências e Tecnologia - DCTMA - Ed. 8
>> Universidade do Algarve
>> Campus de Gambelas
>> 8005-139 FARO   (Portugal)
>> -x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-
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Re: [Qgis-user] QGIS 6.3 for macOS 10.14.5 : HELP

[Ramon Andinach]

Hi Nuno,

You need to set some environmental variables, so that the GDAL binaries can be 
found.
William provides a nice step by step in file Read Me.txt

If you’ve already deleted the dmg I’ll paste it into a reply, but you should 
read Read Me.txt because it contains other useful bits of information besides 
the answer to your question.

Regards,
Ramon.

> On 22 May 2019, at 07:14, Nuno Manuel de Figueiredo de Santos Loureiro 
>  wrote:
> 
> Hi all,
> 
> I'm a very regular (happy) user of QGIS 2.18.23.
> Recently I installed QGIS 6.3.2 on my Mac with macOS 10.14.5.
> Several tasks are running very well but when I tried to merge a few rasters I 
> was not able to do that and I received the following message:
> 
> GDAL command output:
> /bin/sh: gdal_merge.py: command not found
> 
> Also, when I tried to clip a raster using a mask layer I was not able to do 
> that and I received the following message:
> 
> GDAL command output:
> /bin/sh: gdalwarp: command not found
> 
> What is missing or wrong?
> Can somebody help me with some tips to fix this issue?
> 
> Many thanks in advance, 
> 
> Nuno
>  
> -x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-
> Nuno de Santos Loureiro (PhD)
> Faculdade de Ciências e Tecnologia - DCTMA - Ed. 8
> Universidade do Algarve
> Campus de Gambelas
> 8005-139 FARO   (Portugal)
> -x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-
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Re: [Qgis-user] Mac User Issues jp2 files

[Ramon Andinach]

Hi Grant,

There’s probably a better way, but the ECW driver includes jp2 drivers. 
Assuming that they’ve used the downloader on the QGIS website, then it’s a 
matter of downloading the ECW SDK,  adding the plugin from here 
https://www.kyngchaos.com/software/frameworks/ 
. 3.6 uses the GDAL 2.4 
plugins. It’s not point and click but has fairly good instructions.


William (who puts these together) or one of the other Mac users are usually 
able to answer questions.

Ramon.

> On 13 Apr 2019, at 09:14, Grant Boxer  wrote:
> 
> I have been running workshops using QGIS 3.6 and the Mac users have been 
> unable to open jp2000 images. Does anyone have a fix for this?
>  
> Grant Boxer
> Perth, Western Australia
>  
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Re: [Qgis-user] Upload ecw format images

[Ramon Andinach]

Hi Orlando,

This is probably not the answer that you want, but William’s plugin has some 
nice instructions on how to make it work.

Grab the plugin from here http://www.kyngchaos.com/software/frameworks/ 
 and work through the readme.
The worst bit is probably trying to get the ESRI website to cough up the 
download (Maybe here: 
https://download.hexagongeospatial.com/downloads/ecw/erdas-ecw-jp2-sdk-v5-4-macosx?result=true
 
).


Sing out if you need help.

Ramon.

> On 30 Jan 2019, at 9:36 am, Wilmer Orlando Martinez Bojaca 
>  wrote:
> 
> Hi!
> 
> How can I upload the satellite images in ECW format for Mac Mojave (QGIS 
> 3.4.4)? I searched and found a complex solution for those who don´t know much 
> about programming.
> Is there something simpler and faster without many steps? Maybe a plugin?
> I tried the same process in Windows and it works, no more processes and 
> installations were necessary.
> 
> Thanks,
> 
> Orlando
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Re: [Qgis-user] QGIS3 Layout - North Arrow?

[Ramon Andinach]

Yes… but what Nyall suggests would be much easier. :)

Ramon.

> On 28 Mar 2018, at 15:39, Raymond Nijssen  wrote:
> 
> Hi Frank, it is really easy if you know what to do.
> 
> In your Print Composer
> 
> 1. Add a Map:
>  2. Set rotation to anything <> 0
> 
> 3. Add an Image:
>  4. Open "search directories" and pick a pre installed north arrow
>  5. Check "Sync with map" for "Image rotation"
> 
> Good luck!
> 
> Raymond
> 
> On 28-03-18 04:16, Phil (The Geek) Wyatt wrote:
>> https://gis.stackexchange.com/questions/97464/how-to-put-north-arrow-and-scale-on-map-in-composer-in-qgis-2-2-0
>> -Original Message-
>> From: Qgis-user [mailto:qgis-user-boun...@lists.osgeo.org] On Behalf Of 
>> Frank Silkwood
>> Sent: Wednesday, March 28, 2018 8:50 AM
>> To: Bernd Vogelgesang; qgis-user@lists.osgeo.org
>> Subject: Re: [Qgis-user] QGIS3 Layout - North Arrow?
>> I don't understand this. Is there no way to add a north arrow in the Print 
>> Composer? You can easily add a scale.
>> Regards,   Frank
>> -Original Message-
>> From: Qgis-user  On Behalf Of Bernd 
>> Vogelgesang
>> Sent: Tuesday, March 27, 2018 11:56 AM
>> To: qgis-user@lists.osgeo.org
>> Subject: Re: [Qgis-user] QGIS3 Layout - North Arrow?
>> I think it is not worth the effort to ask for that.
>> The devs had plenty of time to add a specific north arrow tool, but 
>> obviously had no great interest in it.
>> The map canvas and the composer window are completely different things, so 
>> there is no automatism to have the same features within both.
>> And actually it is quite clever to use the same tool for adding north arrows 
>> or any other image with one button ... it's just about telling the users 
>> where to look for.
>> Am 27.03.2018, 17:37 Uhr, schrieb knussear :
>>> Well I have to go and find north arrows if I want them in my print
>>> layout.
>>> But when I'm just viewing them in my map they are available under
>>> "decorations". It would be great if I could access the "decorations"
>>> in the print layout - since they already exist somewhere within the
>>> app.
>>> 
>>> 
>>> 
>>> --
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Re: [Qgis-user] Drill hole section with QGIS 3

[Ramon Andinach]

Hi Calvin,

In geology, we use a set of drill holes into the ground to interpret the space 
in the earth between them. Depending on what the geologist is interested in, we 
might be plotting the location of an aquifer, or a gold seam, an oil reservoir 
or some other feature. Note here, that I’m deliberately picking things that 
have length, breath and depth, so just interpolating a surface is not the same 
thing.

So, things that you might want to be able to do include:
 display attributes of the drill hole on a string representing the drill hole 
(or drill trace) in real 3D space.
 Create slices (sections) of these drill traces (so depth is the right and left 
side), with windows of included data on either side of the slice.
 Draw polygons snapped to the drill trace to link areas with similar features 
between holes.
 Build a mesh/wireframe model that links the polygons together
 Get a volume of said model
 Create a voxel model of an attribute/s distribution within the mesh.

This is probably a slightly economic geology skewed view, but hopefully I’ve 
left enough geo-jargon out that it’s understandable[1]

Depends on how complex you want to be. A well known GIS package in my neck of 
the woods trumpets the ability to do the slice and dice and section bit, but 
really it’s making up non-earth plans and dressing them up as having proper 
depth (a section). For some people that seems enough. 
But - that sort of approach makes it really difficult if what you’d really like 
to do is show just the bits of the drill holes with say, gold grades greater 
that 20g/t - leaving any other result as transparent - and spin it slowly 
around in 3D so that you can get a sense of the go/d’s distribution pattern. 
This last one is much more complex and only possible if you’re working in a 
truly 3D environment. 

Hope that makes some sort of sense. Feel free to ask for clarification.

Ramon.
[1] I’ve made an attempt to swap out terms I’m used to using for more generic 
explanations or more comp sci friendly terms. Hopefully, mostly understandable 
to both sides now.


> On 15 Mar 2018, at 20:31, C Hamilton  wrote:
> 
> Pardon my ignorance on the matter, but what does a drill hole capability 
> mean? Is it simply making a hole in a polygon or is it much more complex.
> 
> Thanks,
> 
> Calvin
> 
> On Wed, Mar 14, 2018 at 3:46 PM, John Harrop  > wrote:
> It looks like no one has been answering this for you yet and I’m just 
> catching up on a few days emails after my computer was in the shop.
> 
> There is active interest in developing a drill hole plugin for QGIS3 now that 
> 3D is more fully supported.  I also work with drill holes and have been 
> running them in QGIS fairly easily in plan view where I just calculate traces 
> to a plan view (either in a spreadsheet or using code) and apply theme 
> patterns based on the attributes I kept with the segments.  This has worked 
> reasonable well with grade and lithology which are two of the main things you 
> want to see.
> 
> Cross sections have been harder, but those are still “maps” in non-Earth 
> coordinates.  Again I’ve tended to build those with projections to a plane in 
> either a spreadsheet or by code.  This is not as easy to work with as plan 
> view so I am very interested in seeing the developing interest in getting a 
> drill hole section plugin for QGIS.  That will really finalize QGIS as the 
> logical choice for geological exploration work.
> 
> I’ve cc’ed the others I know using QGIS so I hope you can be included in the 
> list of interested users.
> 
> Regards,
> 
> John Harrop, PGeo, FGS
> Senior Project Geologist
> Coast Mountain Geological Ltd
> 
> PO Box 62
> Suite 488 - 625 Howe St
> Vancouver, BC   V6C 2T6
> 
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Re: [Qgis-user] ctrl-c selection issue

[Ramon Andinach]

Just so we’ve got just about everything covered, does this happen for “Edit-> 
Paste As”?

Also looking at the size of your original CSV, I’d go along with Jeroen, and 
try and import that csv into some other format first. 
If you can find a way of making the selection without going near the attribute 
table that will help too.


Regards,
Ramon.
> On 10 Jan 2018, at 06:26, Jeroen Hovens  wrote:
> 
> Thanks for the ideas.
>  
> The option to save the selection as new csv file as Ramon suggested, doesn’t 
> work; qgis goes into ‘not responding’ and no csv file is added to the layer 
> list. However, a csv file is made, lacking a decent number of objects (first 
> test 15095 of 18582 objects and second test is 15179 of 18582 objects, so 
> missing about 3,5k objects). This csv file can be opened manually in qgis.
> And I checked: this options does work for selections where the ctrl-c option 
> also worked. Then the new cvs layer is added to the layer list in no time.
>  
> Is there some sort of log file in qgis that might give clues to the ‘not 
> responding?
>  
> @Kirk
> I did close and reopen qgis multiple times, even shut down the pc entirely, 
> but to no effect. Selections that did allow for copying earlier, still work: 
> I can make that selection again and ctrl-c works fine. Seems to me this rules 
> out memory-issues.
>  
> Gr.
> Jeroen
>  
>  
> Van: Qgis-user [mailto:qgis-user-boun...@lists.osgeo.org] Namens Kirk Schmidt
> Verzonden: dinsdag 9 januari 2018 22:20
> Aan: qgis-user@lists.osgeo.org
> Onderwerp: Re: [Qgis-user] ctrl-c selection issue
>  
> After a few selections, you may have to close and reopen qgis to purge the 
> memory as well. Importing a csv is memory intensive so another approach is to 
> try saving as a spatial database (SQLite) or even a shapefile.  Once written, 
> you can load the spatial file and you should have lots of memory to keep 
> selecting points. 
> 
> 
> 
> Kirk
> 
> On 1/9/2018 4:58 PM, Ramon Andinach wrote:
>> I’m not sure what the problem is, but if I were doing that repeatedly, I’d 
>> probably use Layer -> Save As, tick the Save Only Selected Features box and 
>> save it to CSV.  Then muck about with excel later. 
>>  
>> This way ought to be a bit lighter on the memory. 
>>  
>>  
>> Ramon.
>>> On 10 Jan 2018, at 04:25, Jeroen Hovens >> <mailto:m...@groenebij.nl>> wrote:
>>>  
>>> Hi,
>>>  
>>> Using qgis 2.14.18 I have been working today with a large csv file (7.5 mln 
>>> objects). I just need selections of this database which I can then modify 
>>> in excel. So I opened the attribute table and made a selection based on a 
>>> specific value for an attribute, and copied that selection (about 30.000 
>>> objects) via the clipboard (ctrl-c) to a new Microsoft Excel file, then 
>>> saved the excel file and repeated the process for another selection. This 
>>> worked perfect for some time. However, some selections won’t copy: when I 
>>> press the copy button the programs turn to ‘not responding’ and won’t snap 
>>> out of it anymore.  Selection size when this happens is about the same 
>>> (about 20k to 35k objects).
>>>  
>>> What could be the problem? Could the data be corrupted? How can I check 
>>> what is wrong?
>>>  
>>> Thank you
>>> Gr.
>>> Jeroen 
>>>  
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>> 
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Re: [Qgis-user] ctrl-c selection issue

[Ramon Andinach]

I’m not sure what the problem is, but if I were doing that repeatedly, I’d 
probably use Layer -> Save As, tick the Save Only Selected Features box and 
save it to CSV.  Then muck about with excel later.

This way ought to be a bit lighter on the memory. 


Ramon.
> On 10 Jan 2018, at 04:25, Jeroen Hovens  wrote:
> 
> Hi,
>  
> Using qgis 2.14.18 I have been working today with a large csv file (7.5 mln 
> objects). I just need selections of this database which I can then modify in 
> excel. So I opened the attribute table and made a selection based on a 
> specific value for an attribute, and copied that selection (about 30.000 
> objects) via the clipboard (ctrl-c) to a new Microsoft Excel file, then saved 
> the excel file and repeated the process for another selection. This worked 
> perfect for some time. However, some selections won’t copy: when I press the 
> copy button the programs turn to ‘not responding’ and won’t snap out of it 
> anymore.  Selection size when this happens is about the same (about 20k to 
> 35k objects).
>  
> What could be the problem? Could the data be corrupted? How can I check what 
> is wrong?
>  
> Thank you
> Gr.
> Jeroen 
>  
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Re: [Qgis-user] script to simplify 'Set to Map Canvas Extent'

[Ramon Andinach]

A third (and probably better) example. Did you know that you can have more than 
one map object on a composer?

For example, I’ve previously made a few maps were I needed an area enlarged as 
an inset. So two map objects at wildly different scales, and therefore 
different extents. 

 If there’s a single refresh extents button which map object would it apply to?

> On 15 May 2017, at 17:52, Ramon Andinach  wrote:
> 
> Hi Willem,
> 
> I can give you an example of where I really, really don’t want the extent to 
> be updated with the refresh button.
> 
> One of the things I use QGIS for requires making a series of maps using two 
> or more of a set of layers.
> So I can have a composer set to a wide view to give a regional overview, and 
> another composer set to a narrower more local view. I can then turn on one 
> set of layers and generate maps at both scales with that set. After that I 
> can change to set B, hit refresh to check it looks right (and I didn’t forget 
> a layer) then have maps for set B straight up.
> (I keep different QGIS projects, with a similar set of composers for each 
> project area I work in. Once I’ve got the map extents set, then I don’t have 
> to meddle with the composers too much. You sound a lot like you’re expecting 
> to people to recreate maps on the fly over and over again - this is really 
> time consuming.)
> 
> Another reason might be that you’ve got your composer set up and you zoom 
> into somewhere on the map to check a detail, fix it and you want to see what 
> it looks like on the map - but you don’t want to zoom back out. 
> 
> I really like that the extent for each composer is fixed - unless I choose to 
> change it. It seems perfectly intuitive to me :)
> 
> 
> 
> On a slight tangent, I notice that Christine did answer the question you 
> asked. 
> Did you mean to ask, “Is there a way to automate creating a map?"
> or,
> "Can I create a button that combines functions in the Composer window?"
> instead?
> In current QGIS, the composer is pretty isolated from the rest of the 
> program, as it’s not possible to directly make changes to composers through 
> scripts. This is a limitation of the libraries used in the composer. I know 
> there’s been a major overhaul of the Composer in the upcoming QGIS 3 release, 
> and I’m pretty sure this is one of the changes.
> I’m sure Nyall will correct me if I’m wrong.
> 
> Ramon.
> 
> 
>> On 15 May 2017, at 16:00, Willem Coetzer  wrote:
>> 
>> I was amazed that QGIS doesn't have a button to simplify this critical 
>> function. Thank you Christine, I do appreciate the response. I found a 
>> script that makes a new composer and then zooms to the extent of the map 
>> canvas in the new composer, but the script is not ideal (dependent on 
>> objects that won't always be present e.g. the filename of the QGIS 
>> template). Ideally one should be able to create a new button on a toolbar 
>> and then simply associate the 'Set to Map Canvas Extent' function with the 
>> button. If that is not possible I guess the next best thing would be a 
>> python script that does the same i.e. zooms to the extent of the map in the 
>> active composer.
>> 
>> I teach basic GIS skills to non-technical people and without this simple 
>> function it will be very hard to make any progress. Even the default 
>> procedure is too complex for them to remember.
>> 
>> I strongly suggest that QGIS developers look at this.
>> 
>> I really expected the 'Refresh' button to refresh the zoom extent as well. 
>> Why wouldn't a user want to refresh the zoom extent when refreshing the 
>> display of layers? It doesn't make sense to me.
>> 
>> If anyone can help with that script I'd be grateful.
>> 
>> 
>> 
>> Somerset StreetWillem Coetzer
>> Grahamstown, 6139Biodiversity Information Manager
>> Private Bag 1015Tel:+27 46 603 5841
>> Grahamstown, 6140Fax:+27 46 622 2403
>> South AfricaEmail:mailto:w.coet...@saiab.ac.za
>> http://www.saiab.ac.za/
>> Disclaimer: http://www.nrf.ac.za/email-legal-notice.php
>> 
>> -Original Message-
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>> qgis-user-requ...@lists.osgeo.org
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Re: [Qgis-user] script to simplify 'Set to Map Canvas Extent'

[Ramon Andinach]

Sorry you found that hard to find.

If it helps, I also have had to show QGIS to some quite non technical people. 
Everyone I’ve shown QGIS to found the concept of item properties pretty easy to 
grasp. Even the ones that needed to have vector and raster explained a multiple 
times.

Setting up templates will also make things easier for non technical people.


> On 15 May 2017, at 19:38, Willem Coetzer  wrote:
> 
> It makes perfect sense to people like us, but it does nothing for someone who 
> simply wants to refresh the extent. I'll admit that it's not a technical 
> question, but one of software usability. That there are different levels of 
> users with different proficiencies will remain a fact of life. Look at it 
> this way: I've been doing GIS for about 15 years. This is the first time that 
> I've had to google such basic functionality or post to a user group about it. 
> If QGIS developers want to see QGIS become the preferred option, they would 
> do well to look at human factors. 
> 
> -Original Message-
> From: Ramon Andinach [mailto:cust...@westnet.com.au] 
> Sent: 15 May 2017 01:31 PM
> To: Willem Coetzer
> Cc: qgis-user@lists.osgeo.org
> Subject: Re: [Qgis-user] script to simplify 'Set to Map Canvas Extent'
> 
> But there is a button to do that. 
> 
> UI is not my strong point. But here’s the logic as I see it.
> 
> First the mantra - The Print Composer is not just the Map item.
> 
> I admit that the button is not on the toolbar, but it doesn’t belong there. 
> If you look at what is on the toolbar it’s things that :
> a) add items to the composer,
> b) apply to the whole composer (like the zoom or export buttons - also the 
> refresh button) or
> c) that apply to any item that’s on the composer window (like the 
> group/ungroup buttons) So *whole* of composer things.
> 
> Things that are particular to an object/item on the composer are in “Item 
> Properties” tab. For example, which layers are in the Legend are an property 
> of the Legend so when you select the Legend object you can change this in 
> Item Properties.
> 
> Since refresh extent would *only* apply to the map object (item) the button 
> to “Set to map canvas extent" *is* in “Item Properties" when have the map 
> frame selected. It’s a property of the map item, so it makes sense for it to 
> be there.
> Select the map object and look in the Item Properties. 
> 
> What you suggest leads to that ugly situation where half the screen is full 
> of buttons and someone will suggest that horrible R-word that MSOffice uses.
> 
> Hope that makes some sort of sense.
> 
> Ramon.
> 
> 
>> On 15 May 2017, at 18:04, Willem Coetzer  wrote:
>> 
>> Thank you Ramon. At the very least, then, a separate button to 'Refresh 
>> Extent' in the composer. In ArcView it was really easy to add a button to 
>> the interface and associate a line or two of Avenue code with it. So in 
>> addition to suggesting that future versions should have a 'Refresh Extent' 
>> button already there, I'm saying that the ability to easily add a button 
>> (for whatever reason) would also be useful. And right now I'm wondering if 
>> someone can help me with the latter, as a way to make it easier to refresh 
>> the extent (as I say I did find a script but it's not precisely what I have 
>> in mind - it must simply refresh the extent of the active composer).
>> 
>> -Original Message-
>> From: Ramon Andinach [mailto:cust...@westnet.com.au]
>> Sent: 15 May 2017 11:53 AM
>> To: Willem Coetzer
>> Cc: qgis-user@lists.osgeo.org
>> Subject: Re: [Qgis-user] script to simplify 'Set to Map Canvas Extent'
>> 
>> Hi Willem,
>> 
>> I can give you an example of where I really, really don’t want the extent to 
>> be updated with the refresh button.
>> 
>> One of the things I use QGIS for requires making a series of maps using two 
>> or more of a set of layers.
>> So I can have a composer set to a wide view to give a regional overview, and 
>> another composer set to a narrower more local view. I can then turn on one 
>> set of layers and generate maps at both scales with that set. After that I 
>> can change to set B, hit refresh to check it looks right (and I didn’t 
>> forget a layer) then have maps for set B straight up.
>> (I keep different QGIS projects, with a similar set of composers for 
>> each project area I work in. Once I’ve got the map extents set, then I 
>> don’t have to meddle with the composers too much. You sound a lot like 
>> you’re expecting to people to recreate maps on the fly over and over 
>> agai

Re: [Qgis-user] script to simplify 'Set to Map Canvas Extent'

[Ramon Andinach]

But there is a button to do that. 

UI is not my strong point. But here’s the logic as I see it.

First the mantra - The Print Composer is not just the Map item.

I admit that the button is not on the toolbar, but it doesn’t belong there. If 
you look at what is on the toolbar it’s things that :
a) add items to the composer, 
b) apply to the whole composer (like the zoom or export buttons - also the 
refresh button) or 
c) that apply to any item that’s on the composer window (like the group/ungroup 
buttons)
So *whole* of composer things.

Things that are particular to an object/item on the composer are in “Item 
Properties” tab. For example, which layers are in the Legend are an property of 
the Legend so when you select the Legend object you can change this in Item 
Properties.

Since refresh extent would *only* apply to the map object (item) the button to 
“Set to map canvas extent" *is* in “Item Properties" when have the map frame 
selected. It’s a property of the map item, so it makes sense for it to be there.
Select the map object and look in the Item Properties. 

What you suggest leads to that ugly situation where half the screen is full of 
buttons and someone will suggest that horrible R-word that MSOffice uses.

Hope that makes some sort of sense.

Ramon.


> On 15 May 2017, at 18:04, Willem Coetzer  wrote:
> 
> Thank you Ramon. At the very least, then, a separate button to 'Refresh 
> Extent' in the composer. In ArcView it was really easy to add a button to the 
> interface and associate a line or two of Avenue code with it. So in addition 
> to suggesting that future versions should have a 'Refresh Extent' button 
> already there, I'm saying that the ability to easily add a button (for 
> whatever reason) would also be useful. And right now I'm wondering if someone 
> can help me with the latter, as a way to make it easier to refresh the extent 
> (as I say I did find a script but it's not precisely what I have in mind - it 
> must simply refresh the extent of the active composer).
> 
> -Original Message-
> From: Ramon Andinach [mailto:cust...@westnet.com.au] 
> Sent: 15 May 2017 11:53 AM
> To: Willem Coetzer
> Cc: qgis-user@lists.osgeo.org
> Subject: Re: [Qgis-user] script to simplify 'Set to Map Canvas Extent'
> 
> Hi Willem,
> 
> I can give you an example of where I really, really don’t want the extent to 
> be updated with the refresh button.
> 
> One of the things I use QGIS for requires making a series of maps using two 
> or more of a set of layers.
> So I can have a composer set to a wide view to give a regional overview, and 
> another composer set to a narrower more local view. I can then turn on one 
> set of layers and generate maps at both scales with that set. After that I 
> can change to set B, hit refresh to check it looks right (and I didn’t forget 
> a layer) then have maps for set B straight up.
> (I keep different QGIS projects, with a similar set of composers for each 
> project area I work in. Once I’ve got the map extents set, then I don’t have 
> to meddle with the composers too much. You sound a lot like you’re expecting 
> to people to recreate maps on the fly over and over again - this is really 
> time consuming.)
> 
> Another reason might be that you’ve got your composer set up and you zoom 
> into somewhere on the map to check a detail, fix it and you want to see what 
> it looks like on the map - but you don’t want to zoom back out. 
> 
> I really like that the extent for each composer is fixed - unless I choose to 
> change it. It seems perfectly intuitive to me :)
> 
> 
> 
> On a slight tangent, I notice that Christine did answer the question you 
> asked. 
> Did you mean to ask, “Is there a way to automate creating a map?"
> or,
> "Can I create a button that combines functions in the Composer window?"
> instead?
> In current QGIS, the composer is pretty isolated from the rest of the 
> program, as it’s not possible to directly make changes to composers through 
> scripts. This is a limitation of the libraries used in the composer. I know 
> there’s been a major overhaul of the Composer in the upcoming QGIS 3 release, 
> and I’m pretty sure this is one of the changes.
> I’m sure Nyall will correct me if I’m wrong.
> 
> Ramon.
> 
> 
>> On 15 May 2017, at 16:00, Willem Coetzer  wrote:
>> 
>> I was amazed that QGIS doesn't have a button to simplify this critical 
>> function. Thank you Christine, I do appreciate the response. I found a 
>> script that makes a new composer and then zooms to the extent of the map 
>> canvas in the new composer, but the script is not ideal (dependent on 
>> objects that won't always be present e.g. the filename of the Q

Re: [Qgis-user] script to simplify 'Set to Map Canvas Extent'

[Ramon Andinach]

Hi Willem,

I can give you an example of where I really, really don’t want the extent to be 
updated with the refresh button.

One of the things I use QGIS for requires making a series of maps using two or 
more of a set of layers.
So I can have a composer set to a wide view to give a regional overview, and 
another composer set to a narrower more local view. I can then turn on one set 
of layers and generate maps at both scales with that set. After that I can 
change to set B, hit refresh to check it looks right (and I didn’t forget a 
layer) then have maps for set B straight up.
(I keep different QGIS projects, with a similar set of composers for each 
project area I work in. Once I’ve got the map extents set, then I don’t have to 
meddle with the composers too much. You sound a lot like you’re expecting to 
people to recreate maps on the fly over and over again - this is really time 
consuming.)

Another reason might be that you’ve got your composer set up and you zoom into 
somewhere on the map to check a detail, fix it and you want to see what it 
looks like on the map - but you don’t want to zoom back out. 

I really like that the extent for each composer is fixed - unless I choose to 
change it. It seems perfectly intuitive to me :)



On a slight tangent, I notice that Christine did answer the question you asked. 
Did you mean to ask, “Is there a way to automate creating a map?"
or,
"Can I create a button that combines functions in the Composer window?"
instead?
In current QGIS, the composer is pretty isolated from the rest of the program, 
as it’s not possible to directly make changes to composers through scripts. 
This is a limitation of the libraries used in the composer. I know there’s been 
a major overhaul of the Composer in the upcoming QGIS 3 release, and I’m pretty 
sure this is one of the changes.
I’m sure Nyall will correct me if I’m wrong.

Ramon.


> On 15 May 2017, at 16:00, Willem Coetzer  wrote:
> 
> I was amazed that QGIS doesn't have a button to simplify this critical 
> function. Thank you Christine, I do appreciate the response. I found a script 
> that makes a new composer and then zooms to the extent of the map canvas in 
> the new composer, but the script is not ideal (dependent on objects that 
> won't always be present e.g. the filename of the QGIS template). Ideally one 
> should be able to create a new button on a toolbar and then simply associate 
> the 'Set to Map Canvas Extent' function with the button. If that is not 
> possible I guess the next best thing would be a python script that does the 
> same i.e. zooms to the extent of the map in the active composer.
> 
> I teach basic GIS skills to non-technical people and without this simple 
> function it will be very hard to make any progress. Even the default 
> procedure is too complex for them to remember.
> 
> I strongly suggest that QGIS developers look at this.
> 
> I really expected the 'Refresh' button to refresh the zoom extent as well. 
> Why wouldn't a user want to refresh the zoom extent when refreshing the 
> display of layers? It doesn't make sense to me.
> 
> If anyone can help with that script I'd be grateful.
> 
> 
> 
> Somerset StreetWillem Coetzer
> Grahamstown, 6139Biodiversity Information Manager
> Private Bag 1015Tel:+27 46 603 5841
> Grahamstown, 6140Fax:+27 46 622 2403
> South AfricaEmail:mailto:w.coet...@saiab.ac.za
> http://www.saiab.ac.za/
> Disclaimer: http://www.nrf.ac.za/email-legal-notice.php
> 
> -Original Message-
> From: Qgis-user [mailto:qgis-user-boun...@lists.osgeo.org] On Behalf Of 
> qgis-user-requ...@lists.osgeo.org
> Sent: 13 May 2017 09:00 PM
> To: qgis-user@lists.osgeo.org
> Subject: [Marketing Mail] Qgis-user Digest, Vol 135, Issue 17
> 
> Send Qgis-user mailing list submissions to
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> When replying, please edit your Subject line so it is more specific than "Re: 
> Contents of Qgis-user digest..."
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> 
> Today's Topics:
> 
>   1. refresh zoom extent in composer (Willem Coetzer)
>   2. Re: refresh zoom extent in composer (Christine)
> 
> 
> --
> 
> Message: 1
> Date: Sat, 13 May 2017 10:44:44 +
> From: Willem Coetzer 
> To: "qgis-user@lists.osgeo.org" 
> Subject: [Qgis-user] refresh zoom extent in composer
> Message-ID: <5f079d395252426b9a6f1f0d6af33499@ZAGRH01EX02.saiab.local>
> Content-Type: text/plain; charset="utf-8"
> 
> If the zoom extent in the view changes, is there a way to update the composer 
> to reflect the same extent or do you need to create a new composer?
> 
> Thanks
> 
> 
> [cid:image40e5f3.PNG@44bf3bf6.42823550]
> 
> 
> 
> 
> Somers

Re: [Qgis-user] BAD field type for CSV Layer when using csvt

[Ramon Andinach]

Hi Steve,

Are you able to add some data to the bug report that isn’t working? 
A bit of the csv file and the csvt would do.

(I just failed to replicate it, although I’m sure I’ve seen it in the last 
month or so…)


Ramon.

> On 10 Feb 2017, at 04:34, steve.tout...@inspq.qc.ca wrote:
> 
> Bug already reported, I should have looked before 
> https://hub.qgis.org/issues/15816  
> 
> I updated the issue 
> 
> 
> 
> De :steve.tout...@inspq.qc.ca 
> A :qgis-user@lists.osgeo.org 
> Date :2017-02-09 12:23 
> Objet :[Qgis-user] BAD field type for CSV Layer when using csvt 
> Envoyé par :"Qgis-user"  
> 
> 
> 
> I'm creating a layer from a CSV file. I have created .csvt file. 
> From the Create a Layer from a Delimited text file I see that the field 
> rls_est is a string and the leading zero is there. 
> But when I click Ok, the layer is created and rls_est field type is integer 
> instead of String, so I lose the leading 0. 
> See 2 images attached 
> 
> Bug? 
> 
> I prefer not using add vector layer because some numeric fields become 
> String. 
> Steve 
> 
> 
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Re: [Qgis-user] Copy/paste non geometric data in QGis

[Ramon Andinach]

Thanks that would be great.

I should add I was using data with geometry too.

I’d guess that it’s something to do with the providers for postgis and 
spatialite.


> On 3 Feb 2017, at 15:13, didier peeters  wrote:
> 
> Thank you Ramon for these observations.  In my case I copied something like 
> 25 rows, so it can’t be related to some lack of memory. 
> I will write a bug report.
> 
> 
>> Le 3 févr. 2017 à 00:56, Ramon Andinach  a écrit :
>> 
>> I can’t help, but I bumped into something like that recently 2.18.2 on 
>> Sierra trying to copy something like 4,700,000 points from a csv into an 
>> identically formatted spatialite layer.
>> 
>> I can offer some other observations.
>> 1. I couldn’t copy the whole lot, but I could copy it in lots of 1,000,000 
>> up to the last packet and then it crashed.
>> 2. I could copy the whole thing into a QGIS temporary layer.
>> 3. I could copy the whole thing into a shape layer.
>> 4. I could copy the whole lot from the temporal layer into the spatialite 
>> layer.
>> 
>> There was an update that caused a restart, and it seemed to work after that. 
>> 
>> Except that it worked fine copying the whole lot into a different format 
>> than spatialite (and particularly the temporary layer) I wondered if it was 
>> a memory hang up of some sort.
>> 
>> 
>>> On 3 Feb 2017, at 00:08, didier peeters  wrote:
>>> 
>>> Hello everybody,
>>> 
>>> I’m trying to copy/paste rows between two tables (layers without 
>>> geometries) loaded in QGis.  They have the same structure but one is a 
>>> postgis layer and the other is a csv file.  When a click on the ‘Paste’ 
>>> button in the attribute table window QGis crashes immediately.  I’m doing 
>>> this on Mac OS Sierra with QGis 2.18.2 and QGis 2.14.10 (both from 
>>> Kyngchaos).  My objective is to provide QGis beginners a simple way to load 
>>> data from their MS Excel world to PostGis, where the data will afterward be 
>>> processed and then displayed in QGis. 
>>> 
>>> Does anybody know anything about this problem ?
>>> 
>>> Thanks !
>>> 
>>> Didier
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Re: [Qgis-user] Copy/paste non geometric data in QGis

[Ramon Andinach]

I can’t help, but I bumped into something like that recently 2.18.2 on Sierra 
trying to copy something like 4,700,000 points from a csv into an identically 
formatted spatialite layer.

I can offer some other observations.
1. I couldn’t copy the whole lot, but I could copy it in lots of 1,000,000 up 
to the last packet and then it crashed.
2. I could copy the whole thing into a QGIS temporary layer.
3. I could copy the whole thing into a shape layer.
4. I could copy the whole lot from the temporal layer into the spatialite layer.

There was an update that caused a restart, and it seemed to work after that. 

Except that it worked fine copying the whole lot into a different format than 
spatialite (and particularly the temporary layer) I wondered if it was a memory 
hang up of some sort.


> On 3 Feb 2017, at 00:08, didier peeters  wrote:
> 
> Hello everybody,
> 
> I’m trying to copy/paste rows between two tables (layers without geometries) 
> loaded in QGis.  They have the same structure but one is a postgis layer and 
> the other is a csv file.  When a click on the ‘Paste’ button in the attribute 
> table window QGis crashes immediately.  I’m doing this on Mac OS Sierra with 
> QGis 2.18.2 and QGis 2.14.10 (both from Kyngchaos).  My objective is to 
> provide QGis beginners a simple way to load data from their MS Excel world to 
> PostGis, where the data will afterward be processed and then displayed in 
> QGis. 
> 
> Does anybody know anything about this problem ?
> 
> Thanks !
> 
> Didier
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Re: [Qgis-user] Count polygons within a larger polygon

[Ramon Andinach]

An instant thought, which is probably wrong. Could you use the vector tools to 
generate centroid points and count those?
Probably only going to work of the polygons are more-or-less regular. 

Do you know what is causing the difference in the count? Is it including 
partial polygons?

-ramon.

On 08/08/2011, at 10:44, Kate Beard  wrote:

> Wondering if anyone can help?  i'm trying to count the number of smaller 
> polygons within a larger polygon.
> 
> I've used the Vector > Data Management > Join by location, which gives me 
> numbers which are close, but not quite correct.
> 
> I've also found the Points in Polygon tool which would be fine if I had 
> points - unfortunately I have polygons.
> 
> Thanks,
> Kate
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Re: [Qgis-user] 1.7 Backwards Compatibility

[Ramon Andinach]

I don't think that there is a way to ensure this.

That said, the limited time when we were passing project files between 1.6 and 
1.7, the major causal factor for 1.6 crashes seemed to be when the 1.7 project 
had been saved with on-the-fly turned on. 

-ramon.

On 02/08/2011, at 9:13, NoOp  wrote:

> I've qgis 1.6.0 and 1.7.0 installed Win versions). A project that I had
> in 1.6 was opened and saved in 1.7. When I attempt to open the project
> in 1.6, 1.6 crashes.
> 
> Question: is it possible to save a 1.7 project as an older version (ala
> 1.6) so that it can be used in both versions?
> 
> 
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Re: [Qgis-user] Re:qgis2google and clipper plugins

[Ramon Andinach]

On 21/07/2011, at 05:19 , J Layug wrote:

> Dear All,

[snipped a bit out here]

> The other is the Clipper Plugin using a vector mask, produces this error:
>  
> An error has occured while executing Python code:
> 
> Traceback (most recent call last):
>   File 
> "C:\OSGeo4W\apps\qgis\python\plugins\GdalTools\tools\widgetPluginBase.py", 
> line 27, in someValueChanged
> self.emit(SIGNAL("valuesChanged(const QStringList &)"), 
> self.getArguments())
>   File "C:/OSGeo4W/apps/qgis/./python/plugins\GdalTools\tools\doClipper.py", 
> line 105, in getArguments
> return self.getArgsModeMask()
>   File "C:/OSGeo4W/apps/qgis/./python/plugins\GdalTools\tools\doClipper.py", 
> line 143, in getArgsModeMask
> if self.alphaBandCheck.isChecked():
> TypeError: 'sip.methoddescriptor' object is not callable

I can't really help on this, except to confirm it.

Looking at the help, I'm not really clear on how a vector mask fits into the 
available options - unless it's a rectangle. But I'm very new at trying to 
understand GDAL from command line options, so I could just be being blind.

If you need something other than a rectangle (and I do occasionally), you could 
try clipping to a rectangle (by feeding it coordinates) and then masking the 
unwanted bits. 
But, this is not really a hand-data-over-to-client ready solution.

Hope this is of some help,

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Re: [Qgis-user] Table/Attribute joins

[Ramon Andinach]

Don't. You got a lot further than I did.

On 12/07/2011, at 08:37 , Lee wrote:

> You are a genius. What a simple solution. I feel ashamed. Thank you very much.
> 
> On Mon, Jul 11, 2011 at 8:16 PM, Ramon Andinach  
> wrote:
> 
> On 12/07/2011, at 03:26 , Lee wrote:
> 
> > I've utilized the table join feature currently included in the 1.7 release. 
> > I have a parcel ownership layer within a city environment. I have selected 
> > some of these parcels and added them to a new shapefile. I'm attempting to 
> > grab the data from the original parcel file and append it to the new 
> > shapefile so I still have ownership information. When I do a table join 
> > through properties, the information shows up in the attribute table... but 
> > not in the .dbf file, nor can I edit it in the table editor plugin. 
> > Therefore, I have no ability to edit how this information is displayed, or 
> > print it along with a key. It seems the join only exists in the memory of 
> > qgis, and it is never actually appended to the database file...
> >
> > Any ideas?
> >
> > --
> > all the best,
> > Lee
> 
> Yep, the join is only in the memory. But if you save (using "save as" or 
> "Save selection as"), the join should be preserved in the new file.
> 
> So either you can join to your original layer, select the ones of interest 
> and resave that new shape file, or
> Join to your new shape file and save as a new shape file.
> 
> Hope that's of some use.
> 
> -ramon.___


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Re: [Qgis-user] Table/Attribute joins

[Ramon Andinach]

On 12/07/2011, at 03:26 , Lee wrote:

> I've utilized the table join feature currently included in the 1.7 release. I 
> have a parcel ownership layer within a city environment. I have selected some 
> of these parcels and added them to a new shapefile. I'm attempting to grab 
> the data from the original parcel file and append it to the new shapefile so 
> I still have ownership information. When I do a table join through 
> properties, the information shows up in the attribute table... but not in the 
> .dbf file, nor can I edit it in the table editor plugin. Therefore, I have no 
> ability to edit how this information is displayed, or print it along with a 
> key. It seems the join only exists in the memory of qgis, and it is never 
> actually appended to the database file...
> 
> Any ideas?
> 
> -- 
> all the best,
> Lee

Yep, the join is only in the memory. But if you save (using "save as" or "Save 
selection as"), the join should be preserved in the new file.

So either you can join to your original layer, select the ones of interest and 
resave that new shape file, or
Join to your new shape file and save as a new shape file.

Hope that's of some use.

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Re: [Qgis-user] Re: QGIS 1.7 on Windows and ECW

[Ramon Andinach]

On 05/07/2011, at 16:51 , daniel.gne...@vevey.ch wrote:

> Hi, 
> 
> I'm sorry, but I'm really unable to make work ECW on Windows XP and QGIS 
> 1.7.0... I tried a fresh install from OSGEO4W on a new computer, but 
> impossible to open ECW files... I'have followed this procedure : 
> 
> http://georezo.net/wiki/main/logiciels/qgis/installation 
> 
> And tried with V80, V90 and V10 of ERDAS SDK, with no success. Will the ECW 
> plugin be integrated in 1.7 as it was in 1.6 ? 
> 
> Thanks. 
> 
> Daniel 
> 

FWIW, my OSGeo4W install works.
I've tended to follow Micha's instruction set[1], with the variation for my 
install that 
1) the binaries now go in C:/OSGeo4W/bin/gdalplugins/1.8
2) the package is now gdal-ecw

and that looks exactly like what your instruction set says.[2]

So, I'm confused too, and am watching with interest.

-ramon.

[1] http://www.surfaces.co.il/?p=793
[2] Interestingly on the standalone copies that I look after, I've not had to 
invoke variation 1. when they upgraded to 1.7 so their binaries are still in 
c:/windows/system32 or sysWOW64.

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Re: RES: [Qgis-user] exporting joined table to excel

[Ramon Andinach]

I think there might be a step missing.

The new join tool doesn't create a new physical layer, but a virtual one.

So to make it visible outside qgis, you need to save the layer you joined to 
first.
I'd save it as some new name, and you can save it directly into CSV if you wish.

-ramon.

On 27/06/2011, at 05:25 , Frederico Mestre wrote:

> It is a shapefile, but in the dbf was only possible to see the fields in the 
> shapefile, not the joins. I just generated a new shape with the joined fields 
> and only then opened the dbf in excel.
> 
> Thanks for the suggestion! 
> 
> Frederico Mestre
> 
> 
> -Mensagem original-
> De: qgis-user-boun...@lists.osgeo.org 
> [mailto:qgis-user-boun...@lists.osgeo.org] Em nome de Alex Mandel
> Enviada em: domingo, 26 de Junho de 2011 21:45
> Para: qgis-user@lists.osgeo.org
> Assunto: Re: [Qgis-user] exporting joined table to excel
> 
> On 06/26/2011 01:03 PM, Frederico Mestre wrote:
>> Hello,
>> 
>> How can export a table, which can be opened in excel (such as .csv), when 
>> I've got joined tables that I joined using the vector properties window join 
>> tool?
>> 
>> Bye,
>> 
>> Frederico Mestre
>> 
>> 
> 
> If the layer is a shapefile then the dbf is openable in Excel already, no 
> need to export. If it's in a database like Postgis or Spatialite then both of 
> those have tools to export or dump csv.
> 
> Alternately if you Right click on any vector layer loaded and do a Save As... 
> Comma Separated Values is an output option.
> 
> Enjoy,
> Alex
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Re: [Qgis-user] CONVERT DEGREES UNIT TO DMS or UTM COORDINAT SYSTEM

[Ramon Andinach]

On 21/06/2011, at 23:34 , Herman Shut wrote:

> HELLO
> 
> i love qgis because very simple to use
> but i want ask to all, how to make the unit coordinat as UTM or DSM (degrees, 
> minute,second) in
> layout composer for go to printer at paper
> 
> anybody help me
> 
> cheers
> herman shutt msi
> forester civil sociaty
> at buol region
> sulawesi tengah province
> indonesia

Does this answer help?
http://lists.osgeo.org/pipermail/qgis-user/2011-June/012494.html

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Re: [Qgis-user] Composer with deg min sec and utm coordinat unit

[Ramon Andinach]

On 17/06/2011, at 20:23 , herman buol wrote:

> How to change the unit coordinat by default degrees unit to dms or utm unit 
> coordinat if i want print at paper
> Thanks
> Lover qgis
> 10.6.6
> Macbook pro 15“
> indonesia
> Sulteng
> Buol


Hi,

If I understand correctly, the composer uses the coordinate system that your 
map window is in. So if you have your map is set to WGS you get degrees, but if 
it is set to UTM zone 50 (or which ever is appropriate) then you get meters.

So, if you want the composer to use UTM units, you need to make the map use UTM 
units. You can use the "on-the-fly" option to to reproject the map window into 
UTM.

 Two important notes:
1. You'll need to reorganise your map, so *save* your original project *first* 
(e.g. MyProject). The same your project as something else (e.g. MyProjectUTM).
3. 1.6 will only reproject vector layers. 1.7 (due any time now) is able to do 
both vectors and rasters.

I can not help with using DMS in the composer.

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Re: [Qgis-user] Raster -> Merge (gdal_merge) failure

[Ramon Andinach]

On 18/06/2011, at 16:42 , Nick Hopton wrote:

> I am running QGIS 1.7 under Ubuntu 11.04 and I can no longer merge
> rasters by going 'Raster -> Merge'. This was possible in QGIS 1.6, but
> not in QGIS 1.8 or now, after I have dropped back to Version 1.7. The
> process fails with the error message 'The process crashed some time
> after starting successfully.' However, other Gdal tools, for example,
> 'Raster -> Warp' and 'Raster -> Transform' do work. gdal_merge.py will
> not run from a terminal either.
> 
> I have tried completely removing QGIS and reinstalling, but to no
> effect. One odd thing though, after 'completely removing' QGIS and
> reinstalling it I was surprised to find that my old settings were
> still in place.
> 
> Where, by default, does QGIS install Gdal tools, by the way?


Hi Nick,

QGIS (or at least my installs) seem to have an interesting idea of unistall 
sometimes.

In your home directory there's a directory, .qgis
Your defaults and the plugins are installed there. So if you want to do a full 
uninstall and not have your defaults retained - you'll need to trash that 
directory too.

Out of curiosity: 
1. Does the plugin make anything make anything?
2. When you use the Raster -> Merge it shows you what it's doing by making a 
command line script and showing it in the dialogue box. If you copy that onto 
the command line, does that work?
3. (and this is probably the important curiosity) what version of GDAL is your 
copy of QGIS 1.7 compiled against (use something like Help -> About QGIS)?

-ramon.

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Re: Print Composer Re: [Qgis-user] Bugs, release of 1.7 and release of 1.7 as beta

[Ramon Andinach]

On 08/06/2011, at 02:47 , Andreas Neumann wrote:

> -BEGIN PGP SIGNED MESSAGE-
> Hash: SHA1
> 
>> Two for grids:
>> 1. At times I'd like some options other than solid lines or crosses for grid 
>> lines. Probably dashed or dotted lines would do.
> 
> this would be probably easy to do.
> 
>> 2. At other times I'd really like an easier way to put up grids in two 
>> different projections. I know Micha has some instructions on doing this 
>> (http://www.surfaces.co.il/?p=616) but it would be really cool to be able to 
>> do it inside the print composer.
> 
> probably more work. If you seriously need this, you can ask Marco for an
> offer/estimate how many hours of work. Other people asked for this
> feature as well. So maybe an opportunity to combine financial resources
> for implementing it?
> 
>> 3. I'm noticing that when I browse to a folder with images, the path is 
>> reported with \ in the opposite direction to the default set, causing QGIS 
>> to loose my added directory. Can anyone else using Windows osgeo install 
>> confirm this?
> 
> don't have the Windows version at hand currently.

Ok, scrap this one. It's something like this, but isn't quite that simple. It 
might have something to do with bringing in templates with local images on - 
but I'll need to play with it a bit more to see if I can refine it better.

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Re: Print Composer Re: [Qgis-user] Bugs, release of 1.7 and release of 1.7 as beta

[Ramon Andinach]

On 07/06/2011, at 13:24 , Paolo Cavallini wrote:

> On Tue, 07 Jun 2011 05:57:43 +0200, Andreas Neumann 
> wrote:
>> what features specifically in the print composer are missing?
>> 
>> I often hear people complain about missing features in the print
>> composer, but I think that at the current trunk version it is already
>> quite powerful and maybe the people just aren't aware about some
>> functionality.
> 
> Agreed. I also had people complaining about map composer being "not
> powerful enough", but when questioned, I never could get a list of missing
> features (apart from resizable, multicolumn legends, you're right).
> Please let us know what is still missing: the more accurate you are the
> more chances you have your request will be fulfilled.
> All the best.

I'm going to open this up with, I really like the print composer and that it's 
very easy to use. It's also very quick to generate a good looking plot.

I've a few suggestions, some that might be easier than others.

Two for grids:
1. At times I'd like some options other than solid lines or crosses for grid 
lines. Probably dashed or dotted lines would do.
2. At other times I'd really like an easier way to put up grids in two 
different projections. I know Micha has some instructions on doing this 
(http://www.surfaces.co.il/?p=616) but it would be really cool to be able to do 
it inside the print composer.
3. I'm noticing that when I browse to a folder with images, the path is 
reported with \ in the opposite direction to the default set, causing QGIS to 
loose my added directory. Can anyone else using Windows osgeo install confirm 
this?
4. I'm also interested in the multicolumn feature.

-ramon.

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Re: [Qgis-user] merge transparent raster?

[Ramon Andinach]

On 31/05/2011, at 12:15 , maning sambale wrote:

> Tim has a tutorial using gdal command line tools:
> http://linfiniti.com/2010/12/a-workflow-for-creating-beautiful-relief-shaded-dems-using-gdal/
> 
> You can probably tweak this to fit the QGIS GUI workflow.
> 

Wow, that's exactly what I needed. (and somewhere I should have checked.)

Amazingly, other than having to explicitly call python, it even works in the 
osgeo shell on windows.

Tim, Maning and Frank thanks heaps.

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Re: [Qgis-user] qgis_symbology_crash

[Ramon Andinach]

On 25/05/2011, at 01:20 , Mars Sjoden wrote:

> On Tue, May 24, 2011 at 4:41 AM, Peter Zalavari  
> wrote:
> Hello everybody,
> 
> every time I try to modify the symbology on a layer QGIS crash. 
> ...  
> any idea?
> thanks for helping me.
> peter
> 
> Yes, I believe this is related to bug  Ticket #3497  -  
> https://trac.osgeo.org/qgis/ticket/3497
> 
> I have reported similar issues with no resolve at this point on Mac OS X from 
> 1.6 - Latest 1.7
> 
> I believe this may account for a low uptake on the Mac OS X side,
> considering that a bug report is usually a very very small percentage of 
> users that will actually report rather than just delete and move on.
> 
> Thank you for reporting!
> 
> And please report your findings on the Bug Tracker link above, 
> you will need to register freely if you have not already.
> 
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What I'd been wondering about this problem is, if it was related to the font 
selection problem. I wouldn't be surprised, but Mr Kyngesburye would know or be 
able to let us know.

If it is, then he has said elsewhere that he does have a workaround, but that 
he wasn't planning to apply it unless he had to (ie. the underlying Qt bug 
wasn't fixed before release). 

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Re: [Qgis-user] Map composer problem

[Ramon Andinach]

On 19/05/2011, at 18:41 , subbu sravan wrote:

> Hi to all I am using QGIS 1.6.When i am trying to compose the map  grid 
> extents are not working. If some body knows how to solve please help me
> 
> With Regards,
> SUBHAKAR BABU BATTULA.


Hi,

Could you expand on "not working"?

Do you mean, the map is not showing what I expect?
Do you mean, the map is not showing what's in the mapper window?
or something else?

cheers,
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Re: [Qgis-user] Australian GDA94 and UTM zones

[Ramon Andinach]

On 18/05/2011, at 19:30 , Matt Boyd wrote:

> Hi Group,
> I'm having some trouble getting my head around how to set up a project
> that covers multiple UTM zones. What projection do people use when
> they need to cover multiple zones? I also use some industry specific
> software and other users of that software are suggesting I use one UTM
> zone and force the zones either side to work in that crs. Given the
> issues I've had using data where people have done this sort of thing
> I'd like to avoid it and do it a right, or at least consistently wrong
> way.
> 
> Any ideas?
> Thanks
> Matt

If you're determined to use UTM, then the canonical kludge is the one that 
you've been given. You're right, its ugly but I'm guessing the industry 
specific software assumes a small(er) scale project and doesn't really get the 
zone thing. The kludge only works in a useful way, if your project is mostly in 
one zone, and only a little in the other - it does sound like you've got 
something that is in at least 3 zones and that's a big project. 

However, if[1] you're able to make sure that people document which UTM zone 
they're using, then you could have points_zoneA, points_zoneB, and points_zoneC 
and let QGIS do the on-the-fly thing.[2] But even then, if you decided to plot 
the entire project, I'd be expecting some serious distortion if they were 
plotted in UTM.

If I weren't able to break it down into subprojects that were more-or-less one 
zone, this is probably where I'd be seriously looking at a Lat/Long[3] 
recording system for a set of master co-ordinates. Then I had unconverted 
co-ordinates and could convert out when needed.

-ramon.

[1] is iff meaningful? This "if" is a big if, and only if it there is a 
practical way to make sure your field-workers will actually write the zone down.
[2] Note here that 1.7 can do on-the-fly to rasters too, so if you had a dev 
copy of that...
[3] such as GDA94 in the strict 
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Re: [Qgis-user] Displaying a color ramp (color gradient) in the kegend

[Ramon Andinach]

On 16/05/2011, at 18:56 , Agustin Lobo wrote:

> Actually, reading again the message from Ramon I think that
> I misunderstood him: he means that the vector tools for displaying the
> color bar are not useful in this case, which is true.
> 
> Agus

Yes.

I also would think that being able to directly show a raster's colour ramp 
would be useful.

I will have to try out yours and Alister's method, as it sounds neater and much 
less of a kludge.

-ramon.

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Re: [Qgis-user] Attach images

[Ramon Andinach]

On 27/04/2011, at 21:17 , pietrorove...@libero.it wrote:

> Hi
> I have a map of my city divided in a lot of file (Pdf files converted in 
> PNG). 
> There is a method for attach togheter this files in a correct way?Because I 
> must work on a complete city map in qgis.
> Thanks


One of the things I often do, is I have a Project that has most of the layers I 
need in the order I want them. A default project.
Then once I start in a new area, I open the default project and add what I need 
for that area and save it for that area.

It sounds to me like you're needing the files in the right order, yes?
If so, you might find it helpful to have a City_Map Project that just has all 
your .png files together in the right order. Then you can load that up as a 
base, and then add layers to it for different projects.

-ramon. 






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Re: [Qgis-user] Displaying a color ramp (color gradient) in the kegend

[Ramon Andinach]

Hi Manuel,

On 30/04/2011, at 01:15 , Manuel Spínola wrote:

> Dear list members,
> 
> I am displaying a kriking converted to raster (.asc) and I would like to 
> dispaly a color ramp (color gradiente) in the legend.
> How can I do that?
> 
> Best,
> 
> Manuel

Did you have any luck with this?

If you did, please ignore this. If you didn't here's a guess.
The guess assumes you mean in the legend of a composer window.

My understanding (which is limited) is that it's designed for vector data.
So, it's probably not helpful for a raster like yours.

But, if you could generate an image of the colour ramp as a png, jpg, etc. you 
could open that image and place it in your legend section.
You could use the composer's text labels to indicate the range, and then it 
wouldn't matter if the text in the colour ramp was the wrong size.

Hope that is helpful,
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[Qgis-user] names for tables without spatial data

[Ramon Andinach]

Hi,

Could I ask for a bit of a straw pole.

In recent times I've seen nonspatial, aspatial, geometryless, and standalone 
tables used to describe the tables that we want to use in QGIS that have no 
spatial data (ie, data but no points, no polygons, no lines).

I'd like to know if are more names for this "data type" out there?
I'd also like to know if there is one that most QGIS users prefer?

thanks,
-ramon.

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Re: [Qgis-user] Link tables

[Ramon Andinach]

On 10/05/2011, at 21:03 , Chris Buddenhagen wrote:

> How can I link species occurrences with county names to the county shape file 
> to display counties when I click or query a species?
> 
> Chris Buddenhagen

As the species occurrence list has county names, you could use a JOIN to link 
the two files together.
In 1.6 it's in the vector menu list.
In 1.7 it's a tab in the layer properties dialogue.

QGIS is able to open non-spatial CSV or DBF format files through the Add Vector 
system.

Does this help?

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Re: [Qgis-user] copy objects

[Ramon Andinach]

Hi Chuck,

On 09/05/2011, at 04:41 , Chuck Young wrote:

> Thanks in advance for any help on this.  
> 
> I have a line shape file of roads and want to select the multiple segments of 
> certain roads and copy them to a new vector layer.  Is this possible and if 
> so what would be the procedure?
> 
> Again, Thanks
> 
> Chuck ___

Certainly possible.

If you select your roads shape file in the layer window, then you can select 
multiple bits of the layer using the select tools and holding down the ctrl key 
(or equivalent). 
Once you've got the bits you want you can "save selection as" a vector file, 
either by 
a) right clicking on the roads layer, and choosing "save selection as" 
or 
b) using the Layer -> "Save Selection as vector file"

(there are other ways to select files if there is something in common with all 
the roads you want - say if they were all marked as highways in the file)

-ramon.

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Re: [Qgis-user] OCR

[Ramon Andinach]

On 04/05/2011, at 17:18 , ALT SHN wrote:

> Hello,
> 
> This might seem a Little off topic, but maybe someone here can help me.
> 
> I need to extract toponomical data from old digitized paper maps. I wish to 
> explore Optical character recognition (OCR).
> 
> Does anyone has a suggestion/experience with this kind of challenge?
> 
> Thank you,
> 
> André Mano

I'd argue about the "little". I've spent a lot of the last few weeks arguing 
with OCR software about tables of sample data from old reports, that become 
point data to plot. Perfectly relevant :)

I've never tried getting data from digitized maps, but I'll offer the following 
generalisations in case it helps. Generally, I have OCR programmes pass me the 
results as plain text. I lose the formatting, but I don't have to fix stupid 
guesses about the formatting.

This is from my experience, so you may find different.

1. OCR loves paragraphs.
2. Different OCR programmes handle column text differently. Some understand 
columns, some just assume L->R straight across both columns.
3. OCR does not get along with handwritten anything. (Unless the person was 
extra-extra neat and consistent in their writing, and even then it's a maybe.)
4. OCR on tabular data works best if the data is lined up in columns, and 
doesn't have random big gaps.
5. OCR will almost certainly be confused if there is a line on your map running 
through or near a word.
 5a. Actually lines could confuse it quite a bit - I remember one that tried to 
recreate an in-line sketch map out of ascii characters. Quite amusing.
6. You *will* need to check the results. 

I'd love to hear what OCR makes of maps. Very curious.

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Re: [Qgis-user] Re: how to group a classified unique symbology in the layer properties box

[Ramon Andinach]

On 21/04/2011, at 01:52 , pevins wrote:

> Thanks for the suggestion, but The values I want to group are not integers,
> they are text. Symbols I want to group do not necessary sort after each
> other (I.e. Granite comes after gabbro, but i would certainly not want to
> group them together in a graduated interval). I need to be able to manually
> select the symbols I want to group.

Funny, I'd just mentally gone, so like in the geology file, where there's 
granite, and feldspar granite and Robert's granite and then you say it just 
there.

I see two sensible ways to this.

1. The biggest and ugliest geology shape I have, and that I've only partly 
recoloured [1], as a unit name and a rock-type column. The unit name is 
granite, feldspar granite, Robert's granite, etc., but in the rock-type they're 
listed as granite. So naturally I'm using the rock-type column. You could make 
or use a column like that.

2. You could also get a similar effect using a rule-based symbology definition. 
Unit-name = 'granite' AND unit-name = 'feldspar-granite' etc.

Those are the two neatest.


There is a third that I'm using, but it's not pretty or nice. It is very, very 
ugly.
For one of my purposes the maps cover a small area (usually <10km wide), and I 
only need very, very coarse detail. This shape file doesn't have a rock-type as 
such, but I've made a unique symbology where I've been through and changed the 
colours so that all of the basalt-like rocks have the same shade of green [2]. 
This is really ugly when I make a legend on a new print composer, because 
there's hundreds liths in the column. Then I change the first basalt-like unit 
in the legend to "basalts" or "basaltoids" or similar, and weed out the rest of 
the basalt like rocks, repeat for granites and whatever other rocks are on your 
screen. This is where QGIS is helpful, because next time I open this composer, 
it remembers my weeding. 
It's a really ugly kludge, but for the purpose will do.


I'd use one of the first two :)


-ramon.
[1.] The original cartography is in a proprietary binary format. I'm sure this 
has happened to most of us before.
[2.] I also have a saved symbology for this where they have slightly different 
colours for when I need more detail.

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Re: [Qgis-user] Vector layers problem

[Ramon Andinach]

I've had this on linux (ubuntu) too, but only very, very, vary rarely.

Not sure about Ctrl-R, but the refresh button generally does not fix it.

-ramon.

On 18/04/2011, at 17:48 , Saber wrote:

> Have you tried Ctrl+R to refresh the page?
> Cheers
> Saber
> 
>> Hello,
>> 
>> For some time I have detected a problem when I load raster and vector
>> layers. When I turn off a vector layer, it does not disappear from the
>> map, I have to turn on and off again at the TOC so that it effectively
>> disappears.
>> 
>> This behavior happens to me both in 1.6 and 1.7 nightly builds, on
>> Windows only (XP and 7), Linux does not show this behavior. I've tested
>> on multiple machines.
>> 
>> Is this a known problem?
>> 
>> Thanks!
>> 
>> Regards,
>> Pedro Venâncio
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Re: [Qgis-user] rasterization and raster analysis

[Ramon Andinach]

On 12/04/2011, at 22:11 , Julio Cesar Canales DElgadillo wrote:

> Hello there Qgis people,
> I have a couple of questions about the use of GDAL tools. I tried to 
> rasterize some vector layers using the rasterize tool of GDAL, but it  is not 
> clear for me what means: "output file for rasterized vectors (raster, must 
> exist)", I have no a raster for these areas (and this is the reason I wish to 
> create it), may be I'm not understanding something but I do not what it is, 
> somebody knows about it or knows where to find a tutorial on this function?
> Do you know if there is some way to analize with  Qgis the connectivity 
> between different classes in a raster (categorical raster), something like 
> fragstats does? If yes I will be so grateful for any information about it.
> Best wishes.
> Biól.MCF. Julio César Canales Delgadillo.

I know what it means, but I don't know (yet) an easy way around it (does anyone 
here have any *easy* suggestions?).

Up to version GDAL library version 1.8, GDAL is not able to make its own 
rasters. Therefore, GDAL expects a raster of the right size and projection to 
exist for GDAL write into.
If you're using trunk (1.7) on windows GDAL 1.8 is available and you can ignore 
this.

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Re: [Qgis-user] error with r.cost

[Ramon Andinach]

On 10/04/2011, at 13:19 , ambijat wrote:

> Hi All,
> I am trying to create shortest path between two raster points (converted from 
> v.to.rast) and I use the STRM data for the input values between the two 
> points. This is the error I get.
> 
> r.cost input=afg_rast@user1 output=salroute start_rast=salang@user1 
> max_cost=0 -k
> G_malloc: unable to allocate 524288 bytes at setup.c:64
> Finished with error
> 
> Any idea why I am getting this?
> Thanks and regards,
> Ambrish Dhaka

I'm afraid I don't - but given the current situations, I'd suggest anyone that 
could help would also be wondering which version of QGIS you were using and on 
which operating system.

-ramon.

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Re: [Qgis-user] Rule renders and colour ramps

[Ramon Andinach]

On 09/04/2011, at 20:20 , Martin Dobias wrote:

> Hi Ramon
> 
> On Sat, Apr 9, 2011 at 1:51 AM, Ramon Andinach  wrote:
>> On a related thought to the recent questions about rule renders. Mostly I'm 
>> using the rules to define colour schemes that I can't work out how to get 
>> otherwise.
>> 
>> Is there a way to define custom colour ramps?
>> Particularly I'm thinking of colour brewer ramps.
>> If there is, could someone point me in the right direction?
> 
> Yes it is possible to define custom color ramps: either in Style
> manager dialog (menu Options -> Style manager) or when selecting a
> color ramp for categorized/graduated renderer, the last item in the
> combo box is "new color ramp". There is a support for gradients,
> random colors and colorbrewer ramps.

Thanks for that. 
If I see properly, for colour brewers, I get to choose a colour pattern suite, 
how many colours are there and that's about it.
Now, what happens if I was looking for something that was approximately like 
the Spectrum colourbrewer, but with the colours backwards (blues low, reds 
high) (or even define whole new colour suites).
Is that possible?

> Btw. you are doing a great job with the "how do I do" pages on the wiki!

Thanks Martin, the encouragement is much appreciated.

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[Qgis-user] Rule renders and colour ramps

[Ramon Andinach]

On a related thought to the recent questions about rule renders. Mostly I'm 
using the rules to define colour schemes that I can't work out how to get 
otherwise.

Is there a way to define custom colour ramps?
Particularly I'm thinking of colour brewer ramps.
If there is, could someone point me in the right direction?



If there was, then I could use that ramp across a different fields and in 
different files more easily than a rule render, which I have to edit every time 
I load it up for a different field.

So say, I have point data for gold, arsenic and copper in one file. If I use 
one colour scheme for all of them, then other people can look and see that this 
colour is the good results. If I have a suitable ramp, I can just select the 
field and categorise. The rule, I have to load up, alter each rule for the 
field each time I want to look at a different field.

Hopefully that makes sense.
-ramon.


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Re: [Qgis-user] postgis and custom CRS

[Ramon Andinach]

It probably should.

The default behaviour in QGIS is to assume.
I've set mine so that if it doesn't know, it asks (have a look under settings).

-ramon.

On 08/04/2011, at 16:41 , Duarte Carreira wrote:

> But shouldn’t QGIS identify the CRS correctly? Or at least say it is unknown? 
> Stating the wrong CRS will misguide users.
>  
> Duarte
>  
> De: pcr...@pcreso.com [mailto:pcr...@pcreso.com] 
> Enviada: quinta-feira, 7 de Abril de 2011 20:34
> Para: Duarte Carreira
> Cc: qgis-user@lists.osgeo.org
> Assunto: Re: [Qgis-user] postgis and custom CRS
>  
> You'll need to define the coordinate system in QGIS as well as PostGIS, & 
> probably tel QGIS which projection to use fro the project & the layer.
> 
> Brent Wood
> 
> --- On Fri, 4/8/11, Duarte Carreira  wrote:
> 
> From: Duarte Carreira 
> Subject: [Qgis-user] postgis and custom CRS
> To: "qgis-user@lists.osgeo.org" 
> Date: Friday, April 8, 2011, 5:15 AM
> 
> Hi.
> 
>  
> 
> I’m seeing this behavior and would like to confirm it.
> 
>  
> 
> When I add a PG layer that has a custom CRS, QGIS says it is WGS84 (in the 
> metadata tab in properties).
> 
>  
> 
> In PG I have the custom CRS defined like this:
> 
>  
> 
> Srid: 9102160
> 
> Auth_name: ESRI
> 
> Auth_srid: 102160
> 
> Srtext: 
> "PROJCS["Datum_73_Hayford_Gauss_IGeoE",GEOGCS["GCS_Datum_73",DATUM["Datum_73",SPHEROID["International_1924",6378388,297]],PRIMEM["Greenwich",0],UNIT["Degree",0.017453292519943295]],PROJECTION["Transverse_Mercator"],PARAMETER["False_Easting",200180.598],PARAMETER["False_Northing",299913.01],PARAMETER["Central_Meridian",-8.1319062],PARAMETER["Scale_Factor",1],PARAMETER["Latitude_Of_Origin",39.66],UNIT["Meter",1],AUTHORITY["EPSG","102160"]]"
> 
> Proj4text: "+proj=tmerc +lat_0=39.66 +lon_0=-8.1319062 
> +k=1 +x_0=200180.598 +y_0=299913.01 +ellps=intl +units=m 
> +towgs84=-288.885,-91.744,126.244,-1.691,0.410,-0.211,-4.598 +no_defs"
> 
>  
> 
> Can someone confirm?
> 
>  
> 
> Thanks,
> 
> Duarte
> 
> 
> -Inline Attachment Follows-
> 
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Re: [Qgis-user] qgis and ecw with last ecw sdk erdas.

[Ramon Andinach]

On 08/04/2011, at 06:12 , aperi2007 wrote:

> Hi,
> 
> I have update the ecw sdk to the last 4.2 version of 3 March 2011.
> But seem the qgis trunk version will not work with this version.
> 
> It instead will work correctly before my update with the 20 Sept. 2010 
> version of ecw sdk.
> 
> I use windows and qgis trunk version.
> 
> Pleases, someone can confirm this ?

I believe Micha can confirm this for you.
http://lists.osgeo.org/pipermail/qgis-user/2011-March/011605.html

QGIS is still using 4.1.
Do you still have your 4.1 ecw dlls?

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[Qgis-user] Filter shape file with data in text file?

[Ramon Andinach]

Hello,

I'm wondering if someone could point me in the right direction for a solution 
to this situation.

I have a shapefile with a large number of polygons (in this case mining leases).
I have a text file that contains a list of tenements of interest.
I'd like to end up with a second shape file that only has the polygons shown in 
that text file.

I could do it by setting up a series of filters in the General tab, but after 
about the 20th TenementID = "fish" AND "TenementID = "finger" it gets a little 
tedious.
The tenements are not adjacent to each other so I can't really go through and 
do an area search.

I have tried pulling the text file in (via delimited text) and joining the 
shapefile to it, but had errors with saving (I think because it thought it had 
polygons that it was trying to put in a point file.)
I was not able to try it the other way around (join text to shape).

Does anyone have any thoughts?
-ramon.

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Re: [Qgis-user] Projection of Shapefile export

[Ramon Andinach]

I had a look at them when I was trying to work out why some imported text 
wasn't correctly reporting its CRS. They look like pretty strange to me, but 
since I could open the project on a linux and win7 in different computers with 
identical results I was happy at that.

It's unlikely I'll get near MI or Arc for quite some time, but I'll be curious 
what you see.

-ramon.


On 23/03/2011, at 23:38 , Brett Adams wrote:

> Ramon, 
> I loaded the gsb files as you suggested. The grids now load into the correct 
> position (correct enough for me anyway). Thats a great achievement right 
> there.
> 
> The exported projection files (prj) look a bit odd. The segment 
> DATUM["D_unknown" makes me a little nervous, however as I don't really know 
> what I'm looking at, its hard to judge.  I'll need to see if they are 
> recognised by Mapinfo or Arc. 
> 
> 
> Brett.
> 
> 
> 
> On 23/03/2011 12:58 PM, custard wrote:
>> Brett, 
>> 
>> If you grab this zip file:
>> http://members.westnet.com.au/ramon_et_al/BrettTest.zip
>> 
>> In this zip file is your csv, a bundle of derived shape files, a 1.7 QGIS 
>> project (which will probably make 1.6 crash - but the shape files are good) 
>> and a folder with a few images.
>> 
>> The images are from the project, with projection set to MGA94 zone 51, but I 
>> have switched between GDA94, ADG66/84, WGS84 and the equivilent zone 51s, 
>> with OTF on.
>> 
>> The images show the points with OTF on and off, and zoomed in.
>> 
>> Are these close enough for your purposes?
>> 
>> The folder I gave for standalone should be right, but this method (for 
>> reasons I don't understand) doesn't seem to work on 1.6 standalone under 
>> WinXP. (I'm hoping it's a 1.6 thing, and not an osgeos/standalone thing)
>> 
>> -ramon.
>> 
>> - Original Message -
>> From: "Brett Adams" 
>> To: qgis-user@lists.osgeo.org, "Ramon Andinach" 
>> Sent: Wednesday, 23 March, 2011 8:20:43 AM GMT +08:00 Beijing / Chongqing / 
>> Hong Kong / Urumqi
>> Subject: Re: [Qgis-user]  Projection of Shapefile export
>> 
>> Ramon,
>> Attached CSV contains grid coordinates in 4 different projections; AGD66, 
>> AGD84, GDA94 and WGS84. All zone 51 and 51S
>> 
>> The conversions were calculated using Mapinfo. Conversions can vary up to 
>> 1-2m depending on the parameters used so don't be too surprised if you can't 
>> replicate these exactly. 
>> 
>> These are the same points attached to Bug Ticket 3099.
>> 
>> Brett
>> 
>> 
>> 
>> On 22/03/2011 6:37 PM, Ramon Andinach wrote:
>> On 21/03/2011, at 19:51 , Ramon Andinach wrote:
>> 
>> 
>> On 21/03/2011, at 10:21 , Brett Adams wrote:
>> 
>> 
>> I thought this problem merely related to the failure of Australian 
>> projections. Projection data doesn't exist, therefore can't be exported with 
>> the shape file.
>> 
>> If the points are imported as WGS84 / UTMz51S, then export the shape file, 
>> the projection file contains the relevant information. Its all good.
>> 
>> So if the projection issue is fixed, shape files will then export with the 
>> required projection information.
>> 
>> 
>> As far as I can see, there is no bug here. If anyone can show otherwise, we 
>> need to record the bug and create a ticket (if it doesn't exist already)
>> 
>> The little bit of information I had before, I just tacked on to the end of 
>> your existing ticket.
>> 
>> I was going to put a bit of my spare time during this week into trying to 
>> replicate Roland's solution firstly on my home linux machine and then see if 
>> I could make that approach work on windows at work.
>> 
>> >From my recollection last time I was trying Ken's solution and a few others 
>> >like just defining a CRS and couldn't quite get there.
>> 
>> Let you know what eventuates.
>> 
>> Short version:
>> I'm fairly sure that QGIS 1.7 is approximately 2 (fairly large) files away 
>> from being able to handle AGD points.
>> 
>> The files are here: 
>> 
>> http://www.icsm.gov.au/icsm/gda/gdatm/national66.zip
>> 
>> and here:
>> 
>> http://www.icsm.gov.au/icsm/gda/gdatm/national84.zip
>> 
>> 
>> and these equate to the missing datum shift files.
>> 
>> In 1.7 as at this afternoon, you need to download them, unzip them rename 
>> them to agd66.gsb or agd84.gsb and copy them to:
>>

Re: [Qgis-user] Projection of Shapefile export

[Ramon Andinach]

On 21/03/2011, at 19:51 , Ramon Andinach wrote:

> 
> On 21/03/2011, at 10:21 , Brett Adams wrote:
> 
>> I thought this problem merely related to the failure of Australian 
>> projections. Projection data doesn't exist, therefore can't be exported with 
>> the shape file.
>> 
>> If the points are imported as WGS84 / UTMz51S, then export the shape file, 
>> the projection file contains the relevant information. Its all good.
>> 
>> So if the projection issue is fixed, shape files will then export with the 
>> required projection information.
>> 
>> 
>> As far as I can see, there is no bug here. If anyone can show otherwise, we 
>> need to record the bug and create a ticket (if it doesn't exist already)
> 
> The little bit of information I had before, I just tacked on to the end of 
> your existing ticket.
> 
> I was going to put a bit of my spare time during this week into trying to 
> replicate Roland's solution firstly on my home linux machine and then see if 
> I could make that approach work on windows at work.
> 
> From my recollection last time I was trying Ken's solution and a few others 
> like just defining a CRS and couldn't quite get there.
> 
> Let you know what eventuates.

Short version:
I'm fairly sure that QGIS 1.7 is approximately 2 (fairly large) files away from 
being able to handle AGD points.

The files are here: 
http://www.icsm.gov.au/icsm/gda/gdatm/national66.zip
and here:
http://www.icsm.gov.au/icsm/gda/gdatm/national84.zip

and these equate to the missing datum shift files.

In 1.7 as at this afternoon, you need to download them, unzip them rename them 
to agd66.gsb or agd84.gsb and copy them to:
/usr/share/proj  - for linux users
C:/OSGeo4W/share/proj - for OSGeo windows installs

and that means it should be something like
C:/Program Files/Quantum version/share/proj
for standalone versions (sorry forgot to check before going home - will check 
in the morning).

Paolo, I know string freeze is tomorrow, but is there any chance that these two 
files could be included in 1.7? 
They should be under a CC by Atrrib (Australian variant). 
(I can ring up GA tomorrow and confirm if needed. Do any of the Australians on 
the list know who might be the right person to ask? Just to save me stumbling 
around in the dark a bit.)

Brett, I also had a problem with QGIS remembering CRS but I'll put that in a 
different thread. If you had any test files that you wanted me to check, I'd be 
happy to do so.

-ramon.


The long version is below.
None of this is new - mostly it's that I'm slow to understand.

In this message, Ken Norris points to the relevent distortion files:
http://lists.osgeo.org/pipermail/qgis-user/2010-September/009731.html

Roland Hill picked up on this and modified the srs.db file and produced these 
messages:
http://www.mail-archive.com/qgis-user@lists.osgeo.org/msg07365.html and
http://www.mail-archive.com/qgis-user@lists.osgeo.org/msg07379.html

At least in the first message he used the following parameters to update the 
srs.db.
For AGD84:
'+ellps=aust_SA', '+a=6378160 +rf=298.2555 
+towgs84=-117.763,-51.51,139.061,-0.292,-0.443,-0.277,-0.191
and for AGD66:
'+ellps=aust_SA', '+a=6378160 +rf=298.2555 
+towgs84=-129.193,-41.212,130.73,-0.246,-0.374,-0.329,-2.955

Then placed the agd84 and agd66.gsb files into /usr/share/proj.

In attempting to replicate Roland I noticed that in 1.7 AGD84 is defined as 
ESPG:4203 and in Proj.4 format _projlonglat +elips=aust-SA 
+towards84=-117.763,-51.51,139.061,-0.443,-0.277,-0.191 +nadgrids=agd.gsb 
+wktext=no_defs which to me looked a lot like Roland's definition (please don't 
ask me to translate - I can't).

So I added in the two .gsb files and tested using this test set: 
http://members.westnet.com.au/ramon_et_al/SinglePoint2.zip

This contains a single point in my main area of operations, recorded originally 
in MGA94z51 using a Garmin GPS76. I've then converted the point into GDA94 
using GA's online converter, and into AGD66, AGD84 (and relevant UTM 
equivilants) using GA's agd-gda94.xls block calculations (see the included 
ASinglePoint.ods for calculations).

From the spreadsheet I've loaded the point in each different projection 
(ASinglePoint.qgs).

OTF works, and the points in that project cluster within a 1.1mx0.6m area. I 
would suspect that most of that error is probably more a reflection of the 
rough methods I used to convert them.


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Re: [Qgis-user] Re: How do I do that on QGIS?

[Ramon Andinach]

On 21/03/2011, at 19:51 , Noli Sicad wrote:

> Hi,
> 
> There are a lot of How do I do that in QGIS  in GIS  Stack Exchange.
> 
> 57 questions and answers in QGIS. Some have screenshots.
> 
> For example,
> 
> How to return raster values based on polygon (shapefile) boundaries in QGIS?
> 
> http://gis.stackexchange.com/questions/7479/how-to-return-raster-values-based-on-polygon-shapefile-boundaries-in-qgis
> 
> http://gis.stackexchange.com/questions/tagged/qgis


Hi Noli,

I've dropped the second link into the User's Corner.

From a very, very quick glance, that also looks a like a place to scan though 
for feature requests.

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Re: How do I do that on QGIS? Was: [Qgis-user] manifold and qgis comparison

[Ramon Andinach]

Now that's what I call a how-to section!

Going to have to rummage in there.

-ramon.


On 21/03/2011, at 20:47 , Mike wrote:

> I should have added more to the email...it was the "tasks" section. Though 
> the one you linked to is good as well. 
> 
> http://udig.refractions.net/confluence/display/EN/Tasks
> 
> 
> 
> On Sun, Mar 20, 2011 at 7:49 PM, custard  wrote:
> Hi Mike,
> 
> Those are some interesting links and thoughts.
> 
> The udig link is to this, yes?
> http://udig.refractions.net/confluence/display/HACK/Desktop+GIS+Comparisons
> (or  alternatively 
> http://wiki.osgeo.org/wiki/Case_Studies#Web_Client_Comparison)
> 
> 
> With the images, two thoughts:
> 1. I should have thought of that. They would make things much easier.
> 
> 2. I had thought initially that they might be loitering in the osgeo tree 
> somewhere, but I've shaken most of the branches but nothing has fallen out 
> yet. 
> 
> I have however, found them in the source tree. Does anyone know if they're 
> out on the web already?
> If they aren't, does anyone object if the default set start making their way 
> slowly out onto the wiki?
> 
> -ramon.
> 
> 
> - Original Message -
> From: "Mike" 
> To: "qgis-user" 
> Cc: cust...@westnet.com.au
> Sent: Monday, 21 March, 2011 7:19:21 AM GMT +08:00 Beijing / Chongqing / Hong 
> Kong / Urumqi
> Subject: Re: How do I do that on QGIS? Was: [Qgis-user] manifold and qgis 
> comparison
> 
> A couple thoughts on this - I mentioned the desire for these kinds of docs on 
> the discus list, thread titled "[Live-demo] Has anyone written a "How do you 
> XXX with Open Source GIS?"
> 
> There was a helpful link for udig 
> http://udig.refractions.net/confluence/display/EN/Home 
> 
> On the esri front, there is a book I picked up titled something like "20 
> essential skills" which I got to make sure my base skills are there, as I and 
> many of us work in an esri shop. This goes through a list of 20 skills the 
> author saw that was in demand from her students and other professionals. 
> 
> I've thought about making a list and then starting on describing how to do 
> this or that. I've written some howto stuff using esri sofware.
> 
> To help motivate people to create it and use it, is there a place that has 
> png's of all the tool buttons so you can easily add them to the docs where 
> it's needed?
> For example this page 
> http://webhelp.esri.com/arcgisdesktop/9.3/index.cfm?TopicName=Core_ArcMap_toolbars
> 
> gives me access to images for individual tools 
> http://webhelp.esri.com/arcgisdesktop/9.3/published_images/button_sketch.gif 
> 
> Which made it much easier to describe people new to the software what to do. 
> 
> Mike
> 
> 
> 
> 
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Re: [Qgis-user] ecw problems

[Ramon Andinach]

On 17/02/2011, at 22:27 , luca_mangane...@comune.trento.it wrote:

> qgis-user-boun...@lists.osgeo.org scritti il 17/02/2011 15.22.58
> 
>> At the moment I've seen:
>> 1. [qgis path]/bin
>> 2. C:\windows\system32 and
>> 3. C:\windows\syswow64 (if you have a 64-bit version).
> 
> it's sufficient to put them in 1. Test it.
 
Tested. It's true! That makes life simpler. Thanks.

It is also true that on a 64-bit system it will look in and use the ones in 
C:\windows\syswow64 first.

-ramon.


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Re: [Qgis-user] Projection of Shapefile export

[Ramon Andinach]

On 21/03/2011, at 10:21 , Brett Adams wrote:

> I thought this problem merely related to the failure of Australian 
> projections. Projection data doesn't exist, therefore can't be exported with 
> the shape file.
> 
> If the points are imported as WGS84 / UTMz51S, then export the shape file, 
> the projection file contains the relevant information. Its all good.
> 
> So if the projection issue is fixed, shape files will then export with the 
> required projection information.
> 
> 
> As far as I can see, there is no bug here. If anyone can show otherwise, we 
> need to record the bug and create a ticket (if it doesn't exist already)

The little bit of information I had before, I just tacked on to the end of your 
existing ticket.

I was going to put a bit of my spare time during this week into trying to 
replicate Roland's solution firstly on my home linux machine and then see if I 
could make that approach work on windows at work.

From my recollection last time I was trying Ken's solution and a few others 
like just defining a CRS and couldn't quite get there.

Let you know what eventuates.

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[Qgis-user] Re: How do I do that on QGIS?

[Ramon Andinach]

The "How do I do that in QGIS?" is now up on the wiki.

It can be reached from the Users Corner, in the HowTos section 
(http://www.qgis.org/wiki/Users_Corner#HowTos).

It can be reached directly here: 
http://www.qgis.org/wiki/How_do_I_do_that_in_QGIS

My intention was to keep it as a direct section for section equivalent for the 
"How do I do that in ArcGIS/Manifold?" document, but I see no reason why other 
how-tos can't either go into the wiki or be linked out from there. 

At the moment it contains 2 completed sections - adding a column and sorting 
tabular data.
I'll attempt to slowly add to things, but if you have something that fits feel 
free to either add it, or pass it to me so I can add it.

I already have a contribution (thanks Bill) that will find its way into the 
HowTos during the week.

If something doesn't make sense please let me know (or just fix it). This does 
happen, I have a very antipodean view of english.

-ramon.



On 21/03/2011, at 07:19 , Mike wrote:

> A couple thoughts on this - I mentioned the desire for these kinds of docs on 
> the discus list, thread titled "[Live-demo] Has anyone written a "How do you 
> XXX with Open Source GIS?"
> 
> There was a helpful link for udig 
> http://udig.refractions.net/confluence/display/EN/Home 
> 
> On the esri front, there is a book I picked up titled something like "20 
> essential skills" which I got to make sure my base skills are there, as I and 
> many of us work in an esri shop. This goes through a list of 20 skills the 
> author saw that was in demand from her students and other professionals. 
> 
> I've thought about making a list and then starting on describing how to do 
> this or that. I've written some howto stuff using esri sofware.
> 
> To help motivate people to create it and use it, is there a place that has 
> png's of all the tool buttons so you can easily add them to the docs where 
> it's needed?
> For example this page 
> http://webhelp.esri.com/arcgisdesktop/9.3/index.cfm?TopicName=Core_ArcMap_toolbars
> 
> gives me access to images for individual tools 
> http://webhelp.esri.com/arcgisdesktop/9.3/published_images/button_sketch.gif 
> 
> Which made it much easier to describe people new to the software what to do. 
> 
> Mike
> 
> 
> On Mon, Mar 14, 2011 at 3:10 AM, Richard Duivenvoorde  
> wrote:
> Ramon Andinach wrote:
> 
> >> What about adding a section to the wiki, mentioning (or even holding?) a 
> >> copy of this pdf. And per 'task': add a new subpage on which somebody 
> >> performs this taks using qgis: pointing to data to try out the task etc 
> >> etc.
> 
> > I have a bit of a start (the first two bits) sitting on my computer at home.
> >
> > But wanted to ask what the best way of presenting this was.
> >
> > I had thought (like Richard) that a wiki-style thing (perhaps a little bit 
> > of the User's Corner?) could be a good place for this. Then if others felt 
> > like completing a bit of one of the tasks they could add that in easily.
> >
> > Alternatively I could ask people to email bits they've done to me and 
> > construct a latex/pdf document that can be put up somewhere in 
> > documentation.
> >
> > Do either of these sound sensible?
> > Are there better ways?
> > Should I go away and pester the documentation people?
> 
> Hi Ramon,
> 
> I would say (without having done anything myself ...)
> 
>  just do it :-)
> 
> Get yourself a wiki/osgeo account and start with this two pages in the
> wiki (pointing to it via a blogpost or so?).
> 
> It's a wiki so it can always be removed/incorporated into docs if needed.
> Don't let it get stale on your computer...
> 
> Richard
> 
> 
> 
> 
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How do I do that on QGIS? Was: [Qgis-user] manifold and qgis comparison

[Ramon Andinach]

On 24/02/2011, at 19:02 , Richard Duivenvoorde wrote:

> Noli Sicad wrote:
>> I just googled this doc,
>> How Do I Do This in ArcGIS/Manifold?: Illustrating Classic GIS Tasks
>> http://ecommons.cornell.edu/handle/1813/165
> 
> Nice!
> 
> What about adding a section to the wiki, mentioning (or even holding?) a copy 
> of this pdf. And per 'task': add a new subpage on which somebody performs 
> this taks using qgis: pointing to data to try out the task etc etc.
> 
> Every task-page would be a nice 'blog'-item. I really liked the small blogs 
> of Tim when he describes howto do things. And in time we will have an online 
> set of wiki-pages about howtodothingswithqgis.
> (though it is not an answer the the question of the first poster in this 
> way...)
> 
> Or is this too much an area of the 'normal' documentation? And are we 
> overlapping stuff then?
> 
> Regards,
> 
> Richard
> 
> ps the comparison is from 2004... the tasks are still valid, but probably the 
> way things are done with esri/manifold not anymore?

I have a bit of a start (the first two bits) sitting on my computer at home.

But wanted to ask what the best way of presenting this was.

I had thought (like Richard) that a wiki-style thing (perhaps a little bit of 
the User's Corner?) could be a good place for this. Then if others felt like 
completing a bit of one of the tasks they could add that in easily.

Alternatively I could ask people to email bits they've done to me and construct 
a latex/pdf document that can be put up somewhere in documentation.

Do either of these sound sensible?
Are there better ways?
Should I go away and pester the documentation people?

-ramon.

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Re: [Qgis-user] QGIS 1.6.0 and support for raster *.sid

[Ramon Andinach]

On 09/03/2011, at 03:43 , Giovanni Manghi wrote:

> On Tue, 2011-03-08 at 16:53 +0100, Johan Colson wrote:
>> Dear list,
>> 
>> I use QGis 1.6.0.
>> I have orthophotos compressed with MrSid. I cannot open those photo's.
>> I followed the instructions on http://www.qgis.org/wiki/osgeo4wsetup

Is it just me or is that page empty?

>> and on http://trac.osgeo.org/osgeo4w/wiki/pkg-gdal-ecw to get support
>> for raster *.sid. Without success untill now.
>> Can someone give me some advice?
> 
> If you are using the osgeo4w installer then you need to install the
> gdal17-sid package


John, Giovanni is right, and you need the MrSid library for the Mr Sid photos. 
ECW isn't MrSid.

I've recently been told that the ecw library has moved on to 1.8 (gdal-ecw), 
even in recent versions of qgis 1.6. I would presume that the mrsid library 
would be the same. If so, that would be gdal-sid.

I don't think there is anything extra to install for MrSid like there is for 
ecw.

If you followed the really short instructions here:
http://www.qgis.org/wiki/Download#OSGeo4W_Installer
Then you'll need to use the "Advanced Install" to install these packages.

-ramon.

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Large shape files and databases. WAS: [Qgis-user] Very slow performance with large SHP files, with over 200k objects

[Ramon Andinach]

On 07/03/2011, at 16:20 ,   
wrote:

> On Mon, 7 Mar 2011 16:13:32 +0800, Thiru Chandran  
> wrote:
>> Looks like QGIS is not able to handle very large SHP files. Here we are
>> talking about SHP files with over 200K polygons and the one that we are over
>> 500K objects.
>> 
>> Even to open, it takes quite a long, say  more than 40 seconds.
>> 
>> The issue is with search, if you do any attribute search then, its as good
>> as 5 mins to respond.
>> 
>> I have seen some earlier threads complaining/having the same problem.. well
>> any patch / progress on this?
>> 
>> this is a critical requirement in one of the application and without the
>> performance, we really cant make it.
>> 
>> hope to see some light on this ... can we expect this in v 1.7?
>> 
>> 
>> Richard.
>> 
>> Northern Territory
>> Australia
> 
> Even if the threading branch brings some real improvements over 1.6, you 
> would get a better result by converting your dataset to a database such as 
> spatialite on whihc you can set indexes and spatial idx.

Right. Wondered where that sort of thing became useful.

Are there some really basic step by half-step guides to setting up something 
like this?
(And I don't mean here's the protocol spec, and you can figure it out from 
there)

Also, are there comparisons out there of the different DBs that qgis can use?

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[Qgis-user] Re: [Qgis-developer] Re: New Symbology : merge borders on nodes for lines

[Ramon Andinach]

On 17/02/2011, at 22:26 , Ramon Andinach wrote:
> On 17/02/2011, at 20:59 , Martin Dobias wrote:
>> On Thu, Feb 17, 2011 at 1:33 PM, kimaidou  wrote:
>>> 2011/2/17 Carson Farmer 
>>>> Perhaps 'Symbol layer ordering' or simply 'layer order'?
>>> 
>>> I dislike "layer order" as it is confusing : do we speak of layers from the
>>> canvas ? Or "style" layers ?
>>> For me we should use the term "layer" in Qgis only for vector and raster
>>> layers
>> 
>> Frankly, with the introduction of symbology-ng I have created some
>> mess in the terminology and I am not sure how to get out of this.
>> Where are the problems:
>> - "style" - before the style referred to Layer style (i.e. renderer,
>> labeling). symbology-ng uses this term for a collection of symbols
>> (and other visual items)
>> - "color ramp" - a convenient source of colors for symbology-ng.
>> Shouldn't that be called a "colormap" since it could be either a color
>> gradient, colors from a palette or just a bunch of random colors?
>> - "layer" - there are map layers and there are symbol layers. I think
>> that generally speaking, a layer always means a map layer.
>> - "categorized" / "graduated" renderer - I remember Carson raising the
>> discussion that these terms are not very clear
>> 
>> An insight from a english native speaker and preferably a user of
>> several GIS would be valuable. It would be good to disambiguate the
>> terms.
> 
> If you'll count an Australian as an English speaker...
> 
> I'd prefer "colormap", for the reason that you give.
> 
> With "categorized" and "graduated" I think that they are clear enough, but 
> not what I would expect. If you were making a graph I was taught "discrete" 
> and "continuous" to describe these data types, and that is what I'd expect. 
> The problem is categorized. Categorized data is data that's been grouped into 
> subsets (bins). So even the "graduated" data becomes categorized. 
> (Take a set of numbers between 1 and 50 {1,2,11,13,22,24,33,35,44,46}, which 
> I treat as "graduated" data. I could then categorize them into 5 groups of 
> equal ranges {1,2}{11,13}{22,24}{33,35}{44,46} )
> 
> For the rest, I've not really used the new symbology enough to comment on.
> 
> I've some experience with Mapinfo and I don't think they way it did symbols 
> is comparable to this. This is better.

I've been thinking on the MI way overnight. In Mapinfo, what the symbology does 
is seperate to the layer properties, and is called creating a thematic map. 
These thematic maps are quasi-layers that you can turn on and off, but are only 
visible if the parent layer is visible. You can create themes by a number of 
different methods, but the ones I remember (it's been a while since I touched 
MI - been using qgis too much) are "Theme by Range" (= "graduated") which I 
used a lot and "Theme by Value" (I think!) (="categorized") which I used less. 
There were others, but I don't remember them at the moment (I see the pictures 
in the dialogue box, but not the words).

The one good point of this is that you could have one layer and several 
sublayers looking at different parts of the one file. So in my line of work, I 
could have a set of point data with assays for different elements, create 
themes for several of these elements and switch between them quickly and 
easily. To do this in qgis, I think I would need to open the layer several 
times and use the symbology for each different element. (please enlighten me if 
I'm wrong - I'm not going to pretend to be an expert).

The bad bit about this is that there was no way of fixing these themes to a 
file, only to workspaces (=Project). So currently I have a set of landholding 
maps that I colour to show their status. In MI I could have created a theme for 
this data, but I would have had to make it for every workspace I opened the 
project in. To get around this, I would edit the file, select the shapes of 
each type and change those to the colour pattern I wanted and save that. I 
qgis, I open it once apply a symbology to it, "Save as Default" and it's done. 
Looks the same, whatever project I open it in.

Looking back over this early morning waffle, there are at least two points in 
here.
1. I like qgis's symbology much more than MI.
2. "Theme", might work as a substitute for symbol "style".

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Re: [Qgis-user] ecw problems

[Ramon Andinach]

On 17/02/2011, at 20:58 , luca_mangane...@comune.trento.it wrote:

> qgis-user-boun...@lists.osgeo.org scritti il 17/02/2011 13.35.44
> 
>> 3. on that dir ([QGIS path]\bin\gdalplugins\1.8) you should have these
>> files:
> 
> My fault:
> 
> the ECW libraries MUST stay on [QGIS path]\bin   and they are:
> 
> NCScnet4.dll
> NCScnet4d.dll
> NCSEcw4_RO.dll
> NCSEcw4_ROd.dll
> NCSUtil4.dll
> NCSUtil4d.dll
> tbb.dll
> tbb_debug.dll


And that poses another question.

On windows is there a *right* place to put these .dll files?

At the moment I've seen:
1. [qgis path]/bin
2. C:\windows\system32 and
3. C:\windows\syswow64 (if you have a 64-bit version).

I've been putting copies in all three just to be sure. 

-ramon.
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Re: [Qgis-user] ecw problems

[Ramon Andinach]

On 17/02/2011, at 20:35 , luca_mangane...@comune.trento.it wrote:

> qgis-user-boun...@lists.osgeo.org scritti il 17/02/2011 12.20.05
> 
>> It appears not.
> 
>> What should it be?
> 
> 1. Edit the bat file, the one you use to launch QGIS
> 2. add a line
> 
> set GDAL_DRIVER_PATH=[QGIS path]\bin\gdalplugins\1.8
> 
> 3. on that dir ([QGIS path]\bin\gdalplugins\1.8) you should have these
> files:
> 
> gdal_ECW_JP2ECW.dll
> NCScnet4.dll
> NCScnet4d.dll
> NCSEcw4_RO.dll
> NCSEcw4_ROd.dll
> NCSUtil4.dll
> NCSUtil4d.dll
> placeholder
> tbb.dll
> tbb_debug.dll
> 
> 4. run Qgis and happy ECW
> 
> :-)

Thanks Lucus, Jean-Claude and Jürgen.
This will work.


A few related questions.
1. I can't get rid of gdal1.7, as apparently grass needs it. Is defining 
GDAL_DRIVER_PATH like that going to cause problems for grass?
2. I read (trac.osgeo.org/gdal/wiki/config_options) that if GDAL_DRIVER_PATH is 
undefined the default for windows systems is $BINDIR\bin\gdalplugins . I 
presume in this context that would be c:\osgeo4\bin\gdalpugins . If I put these 
files there and don't define GDAL_DRIVER_PATH ECWs don't work. Did I assume 
incorrectly?
3. That's a whole lot more .dll files than I've got. What are the *4d.dll files?

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Re: [Qgis-user] ecw problems

[Ramon Andinach]

On 17/02/2011, at 18:36 , Jean-Claude Repetto wrote:

> Le 17/02/2011 11:05, Ramon Andinach a écrit :
>> Ok, I've added gdal-ecw. The installer seems to have added gdal itself for 
>> me.
>> 
>> But, I'm now more confused than before. I have a system where:
>>  a) gdalinfo reports that it recognises ecw but,
>>  b) qgis doesn't.
>> 
>> Any other suggestions?
> 
> Do you have the GDAL_DRIVER_PATH environment variable set on your Windows 
> system?
> 
> C:\>echo %GDAL_DRIVER_PATH%
> 
> 
> Jean-Claude

It appears not.

What should it be?

(is it something that might be lurking in PATH?)
-ramon.

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Re: [Qgis-user] ecw problems

[Ramon Andinach]

On 17/02/2011, at 15:59 , Jürgen E. Fischer wrote:

> Hi Ramon,
> 
> On Thu, 17. Feb 2011 at 10:33:38 +0800, custard wrote:
>>   I've tried reinstalling gdal17-ecw, and tried rebooting a couple of times
>>   just in case that helped (sometimes it does).
> 
> You need gdal-ecw as QGIS now uses GDAL 1.8 in OSGeo4W.

Hi Jürgen.

Ok, I've added gdal-ecw. The installer seems to have added gdal itself for me.

But, I'm now more confused than before. I have a system where:
a) gdalinfo reports that it recognises ecw but,
b) qgis doesn't.

Any other suggestions?

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[Qgis-user] Re: Qgis-user Digest, Vol 60, Issue 21

[Ramon Andinach]

On 15/02/2011, at 12:12, "Alister Hood"  wrote:

> Hi Ramon,
> 
>> Date: Tue, 15 Feb 2011 09:46:09 +0800 (WST)
>> From: custard 
>> Subject: [Qgis-user] Delimited Text Plug-in claiming text file not
>>valid
>> To: qgis-user@lists.osgeo.org
>> Message-ID:
>><550194667.539501297734369648.JavaMail.root@zim-
>> store03.web.westnet.com.au>
>> 
>> Content-Type: text/plain; charset="utf-8"
>> 
>> Hi,
>> 
>> I like the revamp of the Delimited Text Plugin in trunk - it feels
> much
>> easier to use.
>> 
>> However...
>> 
>> While opening a file today I noticed that I didn't get an oppertunity
>> to define a CRS for the file - which I used to in 1.6.
>> 
>> Before reporting that I thought I'd update trunk (which is now
> revision
>> 15172) and am getting a completly different error from the same file.
>> It says:
>> The layer M:/Data/WesternAustralia/SH51-
>> 
> 09/Anthill/MMAnthill/Exports/20110215MKOAHCollars.csv?delimiter=%5B,%5D
>> &delimiterType=regexp&xField=East_LG&yField=North_LG is not a valid
>> layer and can not be added to the map
> 
> I've noticed the same thing this afternoon, and was about to try to 
> isolate the cause so as to file a bug report.  
> I also updated GDAL and maybe some other things at the same time as QGIS
> 
> - did you do the same, or did you only update QGIS?
> 
>> I've reinstalled trunk (which reinstalled the plugin) to no effect.
>> Does anyone have any other suggestions.
> 
> Thanks, at least I now know that is not the solution :)
>> 
>> 
>> 
>> 

I'm afraid that I also updated a bundle of things at once. 

Given it's been a while since I updated, I suspect the installer would have got 
grumpy at me for not updating other things as well if I had tried to just 
update qgis. 

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Re: [Qgis-user] Re:Is Quantum GIS compatible with Windows 7 64 bit?

[Ramon Andinach]

On 09/01/2011, at 03:57 , aperi2007 wrote:

>> I guess I really complaining about the lack of documentation. Can't find
>> any kind of roadmap explaining hardware and software requirements.
> 
> Yes.
> I'm use Win7 64bit and qgis trunk from osgeo4w installer.
> It work without problem.


I'll pitch in a bit. But I only found qgis late last year, so a bit new still.

1. Finding the front end of this thread was annoying.

2. I've been using the osgeo4w version on my computer, but trying to use the 
standalone on a few other computer installations that I oversee - mostly 
because the maintenance is a little easier, and it uninstalls closer to how a 
windows user would expect it to.

3. I had to use the osgeo4w version because a couple of the new work computers 
were win7 64-bit and the standalone for qgis 1.5 would not run. (I found 
something else that supported this in I think the forum - can't remember).

4. The 1.6 standalone installer does work, and so now only my computer is using 
the osgeo4w path.

5. No trunk being used here.

I suppose the point being, I've both sorts of qgis 1.6 installed and they 
appear to be running fine.

-ramon.


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Fwd: [Qgis-user] CRS Transfer MGA94 <-> AMG94

[Ramon Andinach]

(Sorry, meant to send this back to the list)

Begin forwarded message:

> From: Ramon Andinach 
> Date: 23 December 2010 22:09:38 
> To: Micha Silver 
> Subject: Re: [Qgis-user] CRS Transfer MGA94 <-> AMG94
> 
> 
> On 21/12/2010, at 17:50 , Micha Silver wrote:
> 
>> Ramon Andinach wrote:
>> 
>>> Hello,
>>> 
>>> I am wanting to take a set of points stored in csv format that are in the 
>>> projected CRS GDA94/MGA94 zone 51 (MGAz51) and end up with a csv file with 
>>> the same points in CRS AGD84/AMG zone 51 (AMGz51). Being able to do this is 
>>> useful for reconstructing some historical datasets that I deal with.
>>> 
>> 
>> If all you need is the new AMG z51 coordinates, you might want to try using 
>> cs2cs to do the conversion. You could script this to create a new CSV file 
>> from the original with two new columns for the new coord pair.
>> Here's a one liner to get started (tested on linux):
>> while read line; do echo $line | gawk -F , '{print $13"\t"$12}' | cs2cs 
>> +init=epsg:28351 +to +init=epsg:20251;  done < MGAOnlyAC.csv
>> 
>> Columns 12 and 13 are the N and E coords, but in "reverse" order. The gawk 
>> output gets piped straigt into the cs2cs utility, which then dumps (to the 
>> screen, at this point) the coordinates, transformed from EPSG 28351 (MGA z51 
>> ) to EPSG 20251 (AMG94 z51)
> 
> A script! I've clearly been hanging around it windows too long.
> 
> There doesn't seem to be enough of a shell in windows, even though qgis seems 
> to have brought gawk with it, so I've been playing with it on ubuntu.
> 
> The script runs. Thanks, but it brings up another problem.
> I don't trust the values it's returning. They seem way to close to me.
> 
> So to test, I've collected a point on my GPS (GPS76, 7 sats, 3D, accuracy 
> 4.3m).Then I've compared it to expected results from the GDA94 technical 
> manual and the results from cs2cs.
> 
> Short version cs2cs does not hadle AGD84 and AGD66 (and their projections) 
> appropriately. Badly enough that I'd call it buggy.
> 
> -ramon.
> 
> 
> 
> This is the long version.
> _GPS Data_
> 
> The GPS says that this point is:
> WGS84z51s,3542946,6598129
> WGS84,121d27'49.86"E,30d44'26.46S
> MGA94z51,352949,6598127
> GDA94,121d27'49.98E,30d44'26.46S
> AMG84z51,352810,6597969
> AGD84,121d27'44.50E,30d44'32.14S
> AMG66z51,352811,6597969
> AGD66,121d44'31.14E,30d44'31.14S
> 
> 
> _Expectations from GDA94 Techical Manual_
> 
> I'm not going to claim expertise in the next bit. Refering to the "Geocentric 
> Datum of Australia Technical Manual" (www.icsm.gov.au/gda/gdatm/index.html) 
> the document states that;
> 1. for points at an accuracy of 1m or greater, WGS94 and GDA94 are 
> functionally the same, and
> 2. "GDA94 coordiates of a point appear to be about 200m northeast ofthe AGD 
> coordinates of the same point."
> 
> One of the supporting documents (adg-gda.xls) has approximate east and north 
> differences for GDA94, AGD84 and AGD66 and related UTM projections for each 
> of the Australian 1:250,000 mapsheets. For the relevant mapsheet for this 
> point (SH51-09) the approximates are as below.
> 
> Datums,Long("),Lat("),East(m),North(m)
> AGD66-GDA94,5.23,4.68,137,159
> AGD84-GDA94,5.23,4.65,136,159
> AGD66-AGD84,0.038,0.032,-1.40,097
> 
> These seem to fit the GPS data fairly well (within a metre or two, ie. under 
> half the stated error of the GPS reading).
> 
> _cs2cs Conversion_
> 
> I've taken Micha's suggestion, and built it into a little script around it so 
> that I can apply it to different conversions as needed. I've been given to 
> understand that GPS typically think in WGS84 and so I've run cs2cs against 
> the WGS84 lat/long value.
> 
> Starting point: 121.00d27'49.86" -30d44'26.46"
> 
> Results:
> CRS,East/Long,North/Lat
> WGS84z51s,352946.00,6598128.49
> GDA94,121d27'49.86"E,30d44'26.46"S
> MGA94z51,352946.00,6598128.49
> AGD84,121d27'49.86"E,30d44'26.46"S
> AMG84z51,352945.46,6598116.70
> AGD66,121d27'49.86"E,30d44'26.46"S
> AMG66z51,352945.46,6598116.70
> 
> I can understand AGD66 and AGD84 results being fairly close.
> I can understand GDA94 and WGS84 results being fairly close.
> But the GDA94 results and the AGD* results are way, way to close.
> 
> 
> Summary,
> My GPS's conversions are in line (more or less) with what I would expect from 
> reading the GDA Technical report.
> The conversions using cs2cs and Micha's script are not accurate for AGD84 and 
> AGD66 which are too close to GDA94.
> Can I respectfully suggest that there is a bug in the way the AGD84 and AGD66 
> datums are handled?
> 

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Re: [Qgis-user] grass plugin instability: please help

[Ramon Andinach]

On 22/12/2010, at 17:24 , Paolo Cavallini wrote:

> Il 21/12/2010 13:54, Pablo Carreira ha scritto:
> 
>> Here, editing grass vectors became impossible, qgis freezes.
>> 
>> 
>> I had opened a tiket some time ago
>> #3237: http://trac.osgeo.org/qgis/ticket/3237
>> 
>> But after a lot of tests I closed it because after a downgrade for a
>> version that used to work the problem persisted.
>> 
>> I'am available to run tests in windows if you need.
> 
> Thanks Pablo.
> I think we need some more testing to identify the problems, but it is quite 
> clear to
> me that several serious problems do exist.
> Anyone who uses windows can please help identifying the issues?
> Thanks.

I can help, but would need some guidance on what to do as I've not really got 
into the grass end of things yet.

-ramon.

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[Qgis-user] CRS Transfer MGA94 <-> AMG94

[Ramon Andinach]

Hello,

I am wanting to take a set of points stored in csv format that are in the 
projected CRS GDA94/MGA94 zone 51 (MGAz51) and end up with a csv file with the 
same points in CRS AGD84/AMG zone 51 (AMGz51). Being able to do this is useful 
for reconstructing some historical datasets that I deal with. 

I was intending to use the following path, but have hit a few problems on the 
way. These are using qgis 1.6 on win7-64bit by osgeo, and was updated last 
thursday. At least Problem 1 has been duplicated using qgis 1.6 on ubuntu 10.4, 
the others I have yet to have an opportunity to test.

1. Import CSV using the Delimited Text Plugin (Problem 1).
2. Save as a shape file in MGAz51.
3. Load shape file
4. Export to AMGz51 using either;
 a. Vector -> Data Management Tools -> Export to New Projection (Problem 2), or
 b. Save As and select a different CRS (Problem 3)
5. Load new shape file.
6. Extract coordinates using Vector -> Geometry Tools -> Export/Add Geometry 
Columns and then
7. Save As a CSV.

So my first question is, is this path reasonable? Is there a better way?

Problem 1.
I experienced problems importing a text file. In the Delimited Text dialogue 
box the file appears to be correctly parsed, and I can select the correct X and 
Y fields (East_MGA94 and North_MGA94 respectively). However on import data is 
scattered all over the place, and most fields do not have data in the X and Y 
columns. This is weird, and I don't see why. Could some one explain?

What I really don't get is why this file,
http://members.westnet.com.au/ramon_et_al/files/MGAOnlyAD.csv
does not import correctly when this file:
http://members.westnet.com.au/ramon_et_al/files/MGAOnlyAC.csv
does? There is only one column difference, and it does not remove the columns 
that would create duplicate headers at an 8 column width.

Problem 2.
Translating from MGA94z51 to GDA94 or WGS84 is successful.
But any of these to AMG84z51 fails silently after creating the shape file.

Equally, AMG84z51 to any of these fails silently.

I don't know what the problem is. If the error is logged somewhere, and someone 
can tell me where to look I'll hunt it down and post what it says.

For reference I have also tried this on a test file that *only* contains the 
coordinates, and hence no duplicate headers at 8 character width, and had the 
same problem.

Problem 3.
Translating  using Save As also fails but gives an error.
Exception : forward transform of 2.11507, -0.524793 failed with error: failed 
to load datum shift file.

Running from AMG84z51 to MGA94z51 gives a very similar error, except gives the 
numbers 2.11507, -0.525033


Does anyone have any suggestions?
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Re: [Qgis-user] cogo plugin?

[Ramon Andinach]

None at all I'm afraid.

I can tell you that the format it is exporting lists to is not what it's 
expecting to import.
In 1.6 on ubuntu and win7 when I import a file I just exported, I'm getting 
Heading=CoordinateSystem is invalid.

-ramon.


On 06/12/2010, at 15:24 , maning sambale wrote:

> Nice!  Is there a documentation somewhere for valid formats when
> importing a list?
> Can't find any in the sourceforge page of the plugin.
> 
> On Mon, Dec 6, 2010 at 12:19 PM, custard  wrote:
>> Would the "Azimuth and Distance Plugin" in the contriubuted repository work 
>> for this?
>> 
>> I'm fairly sure I could use it to draw up mining tenements that are 
>> specified that way, but I haven't really played with it - just noticed it 
>> was there.
>> 
>> -ramon.
>> 
>> - Original Message -
>> From: maning sambale 
>> To: Kurt Menke 
>> Cc: qgis-user@lists.osgeo.org
>> Sent: Mon, 6 Dec 2010 11:28:34 +0800 (WST)
>> Subject: Re: [Qgis-user] cogo plugin?
>> 
>> Kurt,
>> 
>> I have a similar mapping task.  For now, I'll try m.cogo in GRASS GIS
>> and import the output to to QGIS.
>> 
>> http://grass.fbk.eu/grass62/manuals/html62_user/m.cogo.html
>> 
>> On Wed, Dec 1, 2010 at 8:08 AM, Kurt Menke  wrote:
>>> Does anyone know if there is a plugin for QGIS that allows for mapping of
>>> metes and bounds aka coordinate geometery (COGO) legal descriptions?
>>> 
>>> 
>>> 
>>> **
>>> 
>>> Kurt Menke, GISP
>>> 
>>> Bird’s Eye View
>>> 
>>> www.BirdsEyeViewGIS.com
>>> 
>>> Work: 505-265-0243
>>> 
>>> Cell: 505-362-1776
>>> 
>>> 
>>> 
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>>> 
>>> 
>> 
>> 
>> 
>> --
>> cheers,
>> maning
>> --
>> "Freedom is still the most radical idea of all" -N.Branden
>> wiki: http://esambale.wikispaces.com/
>> blog: http://epsg4253.wordpress.com/
>> --
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> 
> 
> 
> -- 
> cheers,
> maning
> --
> "Freedom is still the most radical idea of all" -N.Branden
> wiki: http://esambale.wikispaces.com/
> blog: http://epsg4253.wordpress.com/
> --

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Re: [Qgis-user] Cartography Sprint - Public Domain Symbology

[Ramon Andinach]

If it hasn't already been done, is there any chance of getting the USGS 
geological symbols onto one of the lists for conversion discussed here??
http://ngmdb.usgs.gov/fgdc_gds/geolsymstd/download.php

-ramon.

On 18/11/2010, at 01:47 , Luca Lanteri wrote:

> Hi,
> 
> In the first part of the new year we are going to start a project, in 
> collaboration with an italian university, to create a symbols library mainly 
> for geologist and geomorphologist.
> The library could be compatible with udig and qgis so we thought to use 
> mainly the svg for point symbol, but we will also use sld for poligon or more 
> complex symbol. 
> 
> In the immediate future we have to choose our standards and the simbol, but 
> we thought to start with the ISPRA (the Italian geological survey office) 
> library. 
> 
> I could send you to your private e-mail a pdf with the simbol library (about 
> 5 Mb) or you can download it at 
> http://www.apat.gov.it/site/_files/Quaderni/quaderno10/quad10_simboli.zip
> 
> thanks 
> Luca
> 
> 2010/11/17 Alex Mandel 
> As part of GIS day, Wed. November 17th a few of us at the University of
> California, Davis will be getting together to work on converting some
> symbols. Our focus is on getting US government agencies symbologies,
> which is public domain, into SVG format for use in programs like QGIS
> (That's what we'll be testing against).
> 
> I'm taking requests if anyone else has symbols they want to see
> converted, please add it to the list or email me:
> http://wiki.osgeo.org/wiki/OSGeo_map_symbol_set#Available_Material
> 
> This 1/2 day event is a test run for future events where we can mass
> convert, tag and sort a large library of symbols.
> 
> There are a few things I hope that we'll discuss tomorrow and in the
> future on the graph...@lists.osgeo.org. The first is how to sort or tag
> symbols. Since symbols can be of a certain type but also belong to a set
> it will be good to find away to allow for this without having to store
> symbols twice.
> Second would be what size and format to store symbols in. Initially I'm
> thinking about how to store both inkscape and plain svg (and comparing
> them) along with batch auto-generation of png versions so that those
> won't have to be in a repository.
> 
> Sorry for the short notice. I look forward to any input from the lists.
> 
> Thanks,
> Alex
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Re: [Qgis-user] qgis 1.6 select tool

[Ramon Andinach]

On 21/11/2010, at 17:06 , Micha Silver wrote:

> On 21/11/2010 10:59, Ramon Andinach wrote:
> 
>> Hello,
>> 
>> I'm having some odd behaviour with the select tool in 1.6.
>> 
>> While I can click-select individual objects, I don't seem to be able to 
>> click-drag select groups of objects as I used to be able to in 1.5.
> Caught me also. There is a whole set of select options now in 1.6. Do you see 
> a tiny arrow in the corner of the select button? If you click and *hold* the 
> select button, you get a  dropdown list of select function. You can either 
> "click select" (one feature), select by rectangle, select by freehand drawing 
> (which is a really cool option that I haven't seen in any other program!) and 
> select by radius.
> 
>> This is on a win7 64bit install via osgeo.
>> 
>> I feel I am missing something obvious?
>> 
>> -ramon.___


Ta-dah! Something blindingly obvious.

Thanks Micha.


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[Qgis-user] qgis 1.6 select tool

[Ramon Andinach]

Hello,

I'm having some odd behaviour with the select tool in 1.6.

While I can click-select individual objects, I don't seem to be able to 
click-drag select groups of objects as I used to be able to in 1.5.

This is on a win7 64bit install via osgeo.

I feel I am missing something obvious?

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Re: [Qgis-user] descargar informacion de gps

[Ramon Andinach]

Hola,

(Traducido por google)

Estoy usando GPSBabel con mi antiguo serie GPS de Garmin.
¿Funciona esto con el nuevo GPS de Garmin USB de sólo?

-Ramon.



[[Original
Hello,

(translation by google)

I'm using GPSBabel with my older serial Garmin GPS.
Does this work with the new USB-only Garmin GPS?

-ramon.]]



On 20/11/2010, at 06:54 , Volker Fröhlich wrote:

> Dear Yane!
> 
> This list is in English. There might also be a list in your language.
> 
> Regards
> 
> Volker
> 
> Am Mittwoch 17 November 2010, 02:09:10 schrieb Yane Pantoja:
>> Cordial saludo
>> 
>> Alguien sabe como bajar waypoint de un gps garmin 75Csx
>> 
>> Gracias por su colaboracion
>> 
>> Atentamente
>> 
>> Yane Pantoja
> 
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Re: [Qgis-user] Re: Re: QGIS 1.5 Update for ECW/SID support crashes

[Ramon Andinach]

Finally got time to try this (and on my new work laptop (win7-64)).

Wow.

Thanks to Frank and Giovanni.

-ramon.

On 21/10/2010, at 17:37 , Giovanni Manghi wrote:

> Hi all,
> 
> the plugin gdal17-ecw has been added by Frank W. in the osgeo4w
> installer.
> 
> Now you only need to download the ERDAS sdk, accept the licence,,
> install it, pick the redistributable dlls and copy them into system32.
> 
> After first test all works fine.
> 
> 
> Cheers
> 
> 
> -- Giovanni --
> 
> 
> 
> On Mon, 2010-10-18 at 07:06 -0700, hayamaguchi wrote:
>> I am in a similar situation with Doug.  My local governments (county and
>> state) use MrSid and ECW, respectively.  I am committed to QGIS and its
>> dependence on GDAL, so I would like to encourage the GDAL and QGIS
>> developers to continue their work in obtaining support for those formats,
>> especially ECW.  Somebody mentioned a petition to ERDAS to loosen up their
>> licensing terms for v71 redistributables for OSGeo use.  That may be a great
>> starting point.  And, like Doug, I thank all of you, as a new convert to
>> QGIS, for all your outstanding, selfless work in developing the software and
>> helping newbies like myself use this wonderful product!
> 
> 
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Re: [Qgis-user] Re: QGIS 1.5 Update for ECW/SID support crashes

[Ramon Andinach]

On 18/10/2010, at 17:26 , Agustin Lobo wrote:

> Unfortunately, having to deal with ECW is not a matter of being maniacs
> of proprietary formats but of many useful free geoinformation provided in
> ECW format. Actually, not having ECW (or mrsid) support can be a cause
> of not using qgis at all.

This is precisely my problem. Too much of the available imagery that I use is 
available only as ECW. Not being able to view ecw data would drive me away from 
a program that I've only just discovered and am really enjoying using.

> What about designing a separate external tool that would use gdal 1.6
> for a fast conversion
> of ECW to a fully gdal 1.7 supported compressed format? This would be
> a temporary solution while
> gdal finds a better solution for ECW support (best) or while ECW is
> dropped by producers
> of public geodata.

I could however live with this. Painful, but I could work with this.

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Re: [Qgis-user] Re: QGIS 1.5 Update for ECW/SID support crashes

[Ramon Andinach]

On 18/10/2010, at 16:02 , Jürgen E. Fischer wrote:

> Hi Paolo,
> 
> On Mon, 18. Oct 2010 at 09:52:17 +0200, Paolo Cavallini wrote:
>> AFAICT, we are now trapped in a choice: either using gdal 1.6 with ECW 
>> support, but
>> with the limitations above, or move to 1.7, and drop ECW support (until the 
>> licence
>> issues are clarified/solved).
> 
> Ok.  Two options.  I'd opt for 1.7.  Should we start a poll?

I'm not so lucky (obviously). I need ecw support.

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Re: [Qgis-user] Re: QGIS 1.5 Update for ECW/SID support crashes

[Ramon Andinach]

On 16/10/2010, at 18:52 , Giovanni Manghi wrote:

> 
> 
>> On my old win laptop qgis (standalone install 1.5.0, on vista) handles all 
>> the vector data I can throw at it fine.
>> If I point it at an ecw, qgis just straight crashes. A windows dialog box 
>> appear saying "qgis.exe has stopped working". Most of my rasters are ecw.
>> Is this what yours did or is this a different problem?
> 
> 
> This is weird:
> I have a 1.5 osgeo4w installation and it works just fine with ecws. You
> need to copy the dlls from the *old* sdk, but then it works just fine
> with no crashes at all.
> 
> If you copy the dlls from the sdk available now in the erdas site, ecw
> will not open. The gdal16-ecw plugin available in the osgeo4w installer
> was based in the old sdk. But still no crash in any case.

And that might be the difference. As this was my first go at Quantum, I took 
the standalone approach. This says it can do ECWs but in *my* case very rarely 
does.

I was going to have a go at the osgeo4w approach if I had time tomorrow.

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Re: [Qgis-user] GPS on Mac and QGis

[Ramon Andinach]

On 15/10/2010, at 20:19 , Patrice Vetsel wrote:

> How to use my gps on qgis (on Mac OsX) ?
> I want to focus the map on my position or register a track directly in qgis 
> (on mac).
> 
> The GPS is a i747a+ that is working great under Mac, by bluetooth or usb.
> 
> Regards
> 
> Patrice Vetsel___


Hi,

Do you mean the "Live GPS Tracking" menu item?

I've just noticed that on my windows install it's down the bottom of the View 
menu, but totally missing on my Mac install.

Is it not available on the Mac install? Is there an extra bit of framework that 
I'm missing? 

(on a related topic, is there somewhere a troubleshooting guide for when the 
GPS tracker fails to connect?)

-ramon.
(newbie unless someone else says otherwise)

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Re: [Qgis-user] Re: QGIS 1.5 Update for ECW/SID support crashes

[Ramon Andinach]

On 16/10/2010, at 24:09 , Francesco Parisi wrote:

> 
> hy guys
> 
> i've got the same problem, and i've tried this solution:
> http://trac.osgeo.org/osgeo4w/wiki/pkg-gdal-ecw unfortunately it don't works
> for me...
> 
> the solution i've found is very empirical, under my windows 7 pc i have a
> virtual machine with windows xp sp3 installed, so i have installed here qgis
> 1.5.0 -> then i have open it and imported my ecw files -> so i have saved
> the project -> and copied them on windows 7.
> 
> the qgs files are not encrypted, so it's possible to open them with notepad
> and modify the location of the ecws to allow qgis to find them correctly.
> 
> I know that is clumsy but the solutions that i've read in this forum don't
> works for me. 
> -- 

Do you mind a bit of curiousity from a new user?

1.
On my old win laptop qgis (standalone install 1.5.0, on vista) handles all the 
vector data I can throw at it fine.
If I point it at an ecw, qgis just straight crashes. A windows dialog box 
appear saying "qgis.exe has stopped working". Most of my rasters are ecw.
Is this what yours did or is this a different problem?
(I'm currently suspecting the laptop is a bit underpowered for the job).

1a.
Actually the link to GDAL ticket 2320 speaks of qgis 1.5.3 - but I don't know 
where that is. Maybe that would help!

2. 
With regards to the wiki entry, the link now points to SDK 4.1, but states that 
the problem is unlikely to be fixed by 3.3. Could this be part of the problem?

3.
With your solution, are the ECW and the quantum project back on windows 7 at 
the end, or just the project?

-ramon.

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[Qgis-user] Polygon colours in existing shape files.

[Ramon Andinach]

Hello,

I have a number of files that are full of filled polygons, which are available 
as .shp or .tab files. Most of these files represent geological data, so the 
colours of the polygons are an important part of visually identifying the data. 
When I was using these in Mapinfo (and from what I saw in Arc) they would come 
up with the predefined colours consistently.

When I open these up in Qgis, it does not appear to honour these colours 
(regardless of whether I open the shp or tab file). 
Is there a way to get Qgis to use these colours?

If there isn't, is there a quicker way of getting these colours back to what 
I'm expecting?
At the moment the best I can see is to group them by the code fields and then 
redo do hundreds of code colours.

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Re: [Qgis-user] Standalone qgis on macos (snow leopard)

[Ramon Andinach]

On 08/10/2010, at 11:59 , William Kyngesburye wrote:

> On Oct 7, 2010, at 9:48 PM, Ramon Andinach wrote:
> 
>> Hello,
>> 
>> I'm trying out qgis on my Mac, and having taken the suggestion that new 
>> users should try the standalone installer I now have a couple of questions.
>> 
>> I've used Qgis 1.5.0-3 (standalone) for Snow Leopard and am running macos 
>> 10.6.4
>> 
>> 1. Both the instructions on http://www.kyngchaos.com/software/qgis and in 
>> the readme indicate that I need to select GDAlTools settings from the Raster 
>> menu. I'm having problems finding the Raster Menu. Could some one point me 
>> in the right direction?
> 
> The GdalTools plugin may need to be enabled.  Do this from the Plugins menu 
> -> Manage Plugins.

Ah, now I've got a raster menu. Done. Thanks. 

>> 2. I'd also like to be able to use ECW images. Is this possible? If so, what 
>> else do I need to do?
>> 
> The GDAL framework in the standalone Qgis can use GDAL plugins (not Qgis 
> plugins) in the standard locations (for GDAL).  I have an ECW plugin that's a 
> separate package.  But I just realized that it will only install if it finds 
> the GDAL framework, so there's no simple way to use it with Qgis standalone.  
> You would have to install the standard Qgis plus the frameworks.
> 
> Note also that the ECW support on OS X is read-only.  I couldn't figure out 
> some problems with my limited C++ skills, and ER/Leica is no help (and they 
> seem to have killed off Mac and *nix support with their latest SDK).

Read only is fine for my purposes, but it's very disappointing about the SDK.

So, I guess I'm about to find out what I can mess up with a full install.

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[Qgis-user] Standalone qgis on macos (snow leopard)

[Ramon Andinach]

Hello,

I'm trying out qgis on my Mac, and having taken the suggestion that new users 
should try the standalone installer I now have a couple of questions.

I've used Qgis 1.5.0-3 (standalone) for Snow Leopard and am running macos 10.6.4

1. Both the instructions on http://www.kyngchaos.com/software/qgis and in the 
readme indicate that I need to select GDAlTools settings from the Raster menu. 
I'm having problems finding the Raster Menu. Could some one point me in the 
right direction?

2. I'd also like to be able to use ECW images. Is this possible? If so, what 
else do I need to do?

thanks,
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