Re: [Qgis-user] Re: Bookmarks

[Alister Hood]

Copying back to the list.

> -Original Message-
> From: Chuck Young [mailto:wylie1...@gmail.com]
> Sent: Tuesday, 28 June 2011 4:34 p.m.
> To: Alister Hood
> Subject: Re: [Qgis-user] Re: Bookmarks
> 
> As always there are things to be careful of.  In my case this was the
only data
> in the db that I needed to replicate.
> 
> Note on MS Access to work with bookmarks etc in spatialite:
> 
> I just tried manipulating data in the bookmarks table using MS Access
through
> the ODBC driver for spatialite.  Found here:  http://www.ch-
> werner.de/sqliteodbc/
> 
> The section where the driver package I needed was here.
>

---
> --
> For Win32 operating systems a binary package is available as an
NSIS
>   installer in sqliteodbc.exe  werner.de/sqliteodbc/sqliteodbc.exe> . It was made with SQLite
2.8.17/3.7.6.3
> and a MinGW cross compiler, and contains the driver DLLs and programs
for
> installation and uninstallation of the ODBC driver.
>

---
> --
> 
> I added one record to a linked table and opened Qgis, went to the
bookmarks
> form and the added record was there and it went to the coordinates
assigned to
> it.
> 
> Hope this helps!
> 
> Chuck
> 
> 
> On Mon, Jun 27, 2011 at 6:13 PM, Alister Hood

> wrote:
> 
> 
>   Ah.
> 
> 
>-Original Message-
>   > From: Chuck Young [mailto:wylie1...@gmail.com]
>   > Sent: Tuesday, 28 June 2011 9:40 a.m.
>   > To: Alister Hood
>   > Subject: Re: [Qgis-user] Re: Bookmarks
>   >
>   > What I found is that the Spatialite db file "qgis.db" is
located in
>   the
>   >  Users/(My User Name)/.qgis folder. (I am using Win 7)
> 
> 
>   Looks like it is a sqlite file, but not a spatialite file :)
>   I was wondering what I could open it with... QGIS of course!
> 
> 
>   > To replicate the bookmarks to another machine just copy that
file into
>   the
>   > correct position on the new machine. Restart Qgis. That worked
fine.
> 
> 
>   Yes, but this will wipe out some other settings as well, as the
file doe
>   not only include bookmarks.
>   But what I can do is open the bookmarks table from qgis.db, open
the
>   attribute table, and select and copy all the rows.
>   Then I can open the bookmarks table from qgis.db on the target
computer,
>   toggle editing and do "Edit-Paste features".
> 
> 
>   > After I did that I also worked to try to set up a bit
different sort.
>   I
>   > exported the tbl_bookmarks table to CSV the sort and re-index
and
>   re-import,
>   > but that added some kind of character in front of the xmin
field which
>   trhew
>   > all references off. I used MS Excel 2010 to do the csv work so
there
>   is
>   > probably a glitch in the csv format between Excel and
Spatialite that
>   added the
>   > extra character.  After the re-import to a new table all one
has to do
>   is use
>   > the Spatialite sql query builder to rename the tables.  After
the
>   updates are
>   > finished you must restart Qgis.
>   >
>   > I think that if the extra character were not there it csv
export,
>   update, re-
>   > import would have worked fine.
>   >
>   > I will try doing it in MS Access to see if I can get a cleaner
set of
>   records.
>   >
>   > So I went to the spatialite gui and set up a set of update
queries to
>   allow me
>   > to update names and thus to be able to sort on the name field
in the
>   Bookmark
>   > form in Qgis.
>   >
>   > I hope this helps.
>   >
>   > Chuck
>   >
>   >
>   > On Sun, Jun 26, 2011 at 11:46 PM, Alister Hood
>   
>   > wrote:
>   >
>   >
>   >   Hi, what way are you doing it?
>   >   I know of two rather laborious ways:
>   >   1) go through the bookmarks one at a time, copying and
pasting
>   from the
>   >   coordinate and scale displays at the bottom of the main
QGIS
>   window.
>   >   2) go through the bookmarks one at a time, using the
"P2P QGIS"
>   plugin
>   >   to grab the window extent of each bookmark.  I wonder if
it
>   would take
>   >   much to modify the P2P plugin to also share bookmarks...
>   >
>   >   Alister
>   >
>   >   > Date: Sun, 26 Jun 2011 23:07:18 -0700
>   >   > From: Chuck Young 
>   >   > Subject: [Qgis-user] Re: Bookmarks
>   >   > To: Qgis-user@lists.osgeo.org
>   >   > Message-ID:
>   
>   >   > Content-Type: text/plain; charset="iso-8859-1"
>   >
>   >   >
>   >   > Never mind.  I figured it out.  If anyone else has a
question
>   on this
>   >   let me
>   >   > know.

[Qgis-user] error with qgis 1.7 shaded relief plugin

[maning sambale]

[Posting in the list because I can't find the shaded relief plugin
project in the hub.qgis.org to post an issue]

Using the shaded relief plugin in 1.7 we get the following errors.

An error has occured while executing Python code:
Traceback (most recent call last):
File "C:/Users/ariel/.qgis/python/plugins\shadedrelief\ShadedReliefDialog.py",
line 83, in acceptmyEngine.run()
File "C:/Users/ariel/.qgis/python/plugins\shadedrelief\ShadedReliefEngine.py",
line 71, in rungr = numpy.ma.filled(grm, numpy.ma.average(grm))
File "C:\PROGRA~2\QUANTU~2\apps\Python25\lib\site-packages\numpy\ma\extras.py",
line 286, in averaged =
umath.add.reduce((-mask).ravel().astype(int))

MemoryError

Python version:2.5.1 (r251:54863, Apr 18 2007, 08:51:08) [MSC v.1310
32 bit (Intel)]

QGIS version:1.7.0-Wroclaw Wroclaw, 63ecdd7

Python path: ['C:/PROGRA~2/QUANTU~2/apps/qgis/./python',
'C:/Users/ariel/.qgis/python', 'C:/Users/ariel/.qgis/python/plugin

DEM metadata here:

Driver:GDAL providerGTiffGeoTIFFDataset
DescriptionZ:\Philippines\DEMs\Country_srtm_90m\srtm_61_11(1)\srtm_62_11.tifAREA_OR_POINT=AreaBand
1Dimensions:X: 6001 Y: 6001 Bands: 1X : 1501,Y 1501X : 751,Y 751X :
376,Y 376X : 188,Y 188X : 94,Y 94X : 47,Y 47Origin:125,10.0004Pixel
Size:0.00083,-0.00083No Data Value-32768 Data Type:GDT_Int16 -
Sixteen bit signed integer Pyramid overviews:Layer Spatial Reference
System: +proj=longlat +ellps=WGS84 +towgs84=0,0,0,0,0,0,0
+no_defsLayer Extent (layer original source projection):
124.9995834543951787,4.9995834301807909 :
130.0004167877285113,10.0004167635141243BandBand 1Band No1No StatsNo
stats collected yet


We clipped the DEM into a smaller area and it worked.

-- 
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] Re: Bookmarks

[Alister Hood]

Ah.

 -Original Message-
> From: Chuck Young [mailto:wylie1...@gmail.com]
> Sent: Tuesday, 28 June 2011 9:40 a.m.
> To: Alister Hood
> Subject: Re: [Qgis-user] Re: Bookmarks
> 
> What I found is that the Spatialite db file "qgis.db" is located in
the
>  Users/(My User Name)/.qgis folder. (I am using Win 7)

Looks like it is a sqlite file, but not a spatialite file :)
I was wondering what I could open it with... QGIS of course!
 
> To replicate the bookmarks to another machine just copy that file into
the
> correct position on the new machine. Restart Qgis. That worked fine.

Yes, but this will wipe out some other settings as well, as the file doe
not only include bookmarks.
But what I can do is open the bookmarks table from qgis.db, open the
attribute table, and select and copy all the rows.
Then I can open the bookmarks table from qgis.db on the target computer,
toggle editing and do "Edit-Paste features".
 
> After I did that I also worked to try to set up a bit different sort.
I
> exported the tbl_bookmarks table to CSV the sort and re-index and
re-import,
> but that added some kind of character in front of the xmin field which
trhew
> all references off. I used MS Excel 2010 to do the csv work so there
is
> probably a glitch in the csv format between Excel and Spatialite that
added the
> extra character.  After the re-import to a new table all one has to do
is use
> the Spatialite sql query builder to rename the tables.  After the
updates are
> finished you must restart Qgis.
> 
> I think that if the extra character were not there it csv export,
update, re-
> import would have worked fine.
> 
> I will try doing it in MS Access to see if I can get a cleaner set of
records.
> 
> So I went to the spatialite gui and set up a set of update queries to
allow me
> to update names and thus to be able to sort on the name field in the
Bookmark
> form in Qgis.
> 
> I hope this helps.
> 
> Chuck
> 
> 
> On Sun, Jun 26, 2011 at 11:46 PM, Alister Hood

> wrote:
> 
> 
>   Hi, what way are you doing it?
>   I know of two rather laborious ways:
>   1) go through the bookmarks one at a time, copying and pasting
from the
>   coordinate and scale displays at the bottom of the main QGIS
window.
>   2) go through the bookmarks one at a time, using the "P2P QGIS"
plugin
>   to grab the window extent of each bookmark.  I wonder if it
would take
>   much to modify the P2P plugin to also share bookmarks...
> 
>   Alister
> 
>   > Date: Sun, 26 Jun 2011 23:07:18 -0700
>   > From: Chuck Young 
>   > Subject: [Qgis-user] Re: Bookmarks
>   > To: Qgis-user@lists.osgeo.org
>   > Message-ID:

>   > Content-Type: text/plain; charset="iso-8859-1"
> 
>   >
>   > Never mind.  I figured it out.  If anyone else has a question
on this
>   let me
>   > know.  There may be another way to do it but what I found
works.
>   >
> 
>   > Thanks
>   >
>   > Chuck
>   >
>   > On Sun, Jun 26, 2011 at 3:19 PM, Chuck Young

>   wrote:
>   >
>   > > I understand that bookmarks are global at present and that
they are
>   > > available to all projects.  I would like to / need to have
the
>   ability to
>   > > copy the bookmarks from one installation to another so all
those on
>   the
>   > > project can use the same bookmarks.
>   > >
>   > > I saw some discussion on this from several months ago but it
didn't
>   seem to
>   > > be resolved at that time.
>   > >
>   > > Is that possible?  Is there a way to save them / export /
import
>   them to
>   > > get them to the second machine???
>   > >
>   > > Thanks
>   > >
>   > > Chuck

Alister
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Re: [Qgis-user] Best way to store temperature info

[Noli Sicad]

I think the best way is NetCDF.

http://en.wikipedia.org/wiki/NetCDF

http://www.mail-archive.com/search?q=GDAL+and+.nc+%28netCDF%29+and+qgis&l=qgis-user%40lists.osgeo.org

Noli

On 6/28/11, jorge.canel...@binarium.pt  wrote:
> Hi all
>
> what do you think is the best way to store temerature data in one poin?
> using attributes ? like Time, Date , Temp in a simgle point and keep
> repeating that point ? or can I have something like a relational DB on a
> shapefile ? or should I use postgis to achieve that ?
>
> Thanks
> Jorge
>
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[Qgis-user] Best way to store temperature info

[jorge . canelhas]

Hi all

what do you think is the best way to store temerature data in one poin? 
using attributes ? like Time, Date , Temp in a simgle point and keep 
repeating that point ? or can I have something like a relational DB on a 
shapefile ? or should I use postgis to achieve that ?


Thanks
Jorge

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Re: [Qgis-user] Mapfile Tools

[Derrick Frese]

Hi Richard,

I've downloaded the sources and see a bunch of python scripts.  I'm running 
QGIS 1.6.0 on Windows XP.  Is there a way to point to these files that are 
stored locally to install the Mapfile Tools?  Also, is python-mapscript 
something I need to download or a setting to turn on in QGIS? Not familiar with 
it.

Thank you for your help.

Derrick



>>> Richard Duivenvoorde  6/27/2011 2:48 PM >>>
On 06/27/2011 09:29 PM, Derrick Frese wrote:
> New to the user list, so don't know if this has been mentioned before  I 
> get an error when trying to install the Mapfile Tools plugin.  I would really 
> like to be able to check this out.  Any idea of this will be fixed, ways to 
> get around the problem, etc..?

Hi Derrick,

you can find sources:

https://github.com/sourcepole/qgis-mapfile-tools 

One of the authors is Pirmin Kalberer which is seen on this list pretty
often also...
One of the things that you really have to have for this plugin to work
is python-mapscript.

Depending on your Operating System or installation type this is
installed in different ways.

So please be a little more specific:
- which version/OS
- what is the problem

This makes it easier to provide help or suggestions,

Regards,

Richard Duivenvoorde

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Re: [Qgis-user] Mapfile Tools

[Richard Duivenvoorde]

On 06/27/2011 09:29 PM, Derrick Frese wrote:
> New to the user list, so don't know if this has been mentioned before  I 
> get an error when trying to install the Mapfile Tools plugin.  I would really 
> like to be able to check this out.  Any idea of this will be fixed, ways to 
> get around the problem, etc..?

Hi Derrick,

you can find sources:

https://github.com/sourcepole/qgis-mapfile-tools

One of the authors is Pirmin Kalberer which is seen on this list pretty
often also...
One of the things that you really have to have for this plugin to work
is python-mapscript.

Depending on your Operating System or installation type this is
installed in different ways.

So please be a little more specific:
- which version/OS
- what is the problem

This makes it easier to provide help or suggestions,

Regards,

Richard Duivenvoorde
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Re: [Qgis-user] Converting gif/jpeg images to shape files

[Andreas Neumann]

-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1

Hi,

What is the purpose of converting these maps to vector files?
 I doubt that it makes a lot of sense to convert scanned historic maps
to a vector format (unless it is clearly a clean black and white line
graphic).

You will get all sorts of ugly artefacts and the filesize would probably
be bigger than the original rasters. Also, you would get vectors without
attribute data (except maybe color/gray values), which is also not ideal.

Probably you just want to geo-reference those scanned maps and use them
as background layers?

Andreas

On 06/27/2011 08:31 PM, Alex Mandel wrote:
> On 06/27/2011 08:36 AM, Mick wrote:
>> I have a collection of .gif and .jpg images of early maps I wish to
>> convert into ESRI shape files for integration into a set of layers of
>> 17th to 19th century Devon.
>>
>> I did stumble on to what appeared to be the tool to do it but I can't
>> find it again and can't think of the correct terminology for the
>> process so I could google with some chance of success.
>>
>> Can some kind soul please point me in the right direction.
>>
>> mick
> 
> What you want is Raster->Vector conversion. GDALtools has some stuff for
> this (or GDAL commandline), there may also be a few other plugins to try
> in the list, but if none of those work GRASS has a lot of support for
> this type of operation.
> 
> Of course that's assuming you want it automated. Depending on the
> complexity of the map you could always do it by hand.
> 
> 1st step if you can though is to Georeference the images.
> 
> Enjoy,
> Alex
> 
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Fwd: Re: [Qgis-user] Editing polygons

[Andreas Neumann]

-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1

sending this also to the list ...

-  Original Message 
Subject: Re: [Qgis-user] Editing polygons
Date: Mon, 27 Jun 2011 22:25:31 +0200
From: Andreas Neumann 
To: Laura Guillot 

Hi Laura,

QGIS uses the simple features format. It will always store data of
adjacent polygons in a "redundant" way. ESRI ArcGIS uses the same model.

If you are looking for a topological file format, you could use GRASS
and use the GRASS digitizing tools (outside or within QGIS).

I am bit surprised that the "topological editing" of QGIS doesn't work
in your installation. It works fine with my data. Can you post a bit
more information about your installation, such as QGIS version,
operating system, etc.?

Andreas

On 06/27/2011 05:41 PM, Laura Guillot wrote:
> Thank you, but it dosen´t works.
> The problem is the same. I have two diferrents lines and I want just one to
> difference the polygons. When I want to move a line, the other part dosen´t
> move at same time, so I have a hole in my map.
> Can I make a single line to separate both poligons?or there is any way to
> change the line to segments?
> Thank you.
> Laura
>
> 2011/6/27 Andreas Neumann 
>
>> Hi Laura,
>>
>> This is probably easy to solve:
>>
>> * Settings --> Snapping Options --> Checkbox "Enable topological editing"
>>
>> Does it work for you?
>>
>> Depending on the QGIS version the setting may be at a different place in
>> the menu.
>>
>> Andreas
>>
>>
>> On Mon, 27 Jun 2011 16:32:53 +0200, Laura Guillot wrote:
>>
>>> I'm trying to reshape polygons of a lancover map, in order to make
>>> them to be more
>>> coincident with an overlaid raster image (orthophoto 1:5M).
>>> If I just move the nodes to the correct position, I create a correct
>>> line but leave a hole behind: the other
>>>  polygon keeps its line where it was. See a pict here:
>>> https://sites.google.com/site/**lguillotdummy/home/**boundaryproblem.jpeg
>>> [1]
>>>
>>>
>>>  Is there any way I could just move the lines as boundaries?
>>>
>>> I've tried by converting poygons to lines first, but the problem is
>>> very much the same: it seems like
>>> there is always a double line, one for each adjacent polygon.
>>>
>>> A possible solution would be having the lines automatically cut into
>>> segments, each going from one vertex to another.
>>>  And having just one segment for each boundary. Is that possible? Is
>>> there a process to cut into segments after running polygons to lines?
>>>
>>> Or perhaps there is a cmpletely different way to accomplish the same
>>> goal: modifying the boundaries between polygons.
>>>
>>> Thanks!
>>>
>>> L
>>>
>>>
>>> Links:
>>> --
>>> [1] https://sites.google.com/site/**lguillotdummy/home/**
>>> boundaryproblem.jpeg
>>>
>>
>> --
>> --
>> Andreas Neumann
>> Böschacherstrasse 10A
>> 8624 Grüt (Gossau ZH)
>> Switzerland
>> __**_
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>> http://lists.osgeo.org/**mailman/listinfo/qgis-user
>>
>

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Re: [Qgis-user] Workarround for problem with Colour Scale Bar Plugin in QGIS 1.7

[Claas Leiner]

O.K.,

einfacher ist es unter Rastereigenschaften > Farbkarte im Ausklappmenü 
hinter Interpolation "diskkret" zu wählen.


Grüße,

Claas



Am 27.06.2011 21:47, schrieb Claas Leiner:

Hi,

The very usefull Colour Scale Bar Plugin don't work with QML-Files or
Colour-Tables, saved in Raster-Properties from qgis 1.7.

A Workaround for this Problem:

Open the QML- or textfile in a Editor
Find the word "INTERPOLATED"
replace "INTERPOLATED" to "DISCRETE"

Save the file.

Now you can use the QML or Txt-File in the Colour Scale Bar Plugin.

Claas
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Re: [Qgis-user] Workarround for problem with Colour Scale Bar Plugin in QGIS 1.7

[Claas Leiner]

O.K.

More easy is it, to  choose interpolation: "diskrete" in
"Raster-Properties > Colour Map"

Claas
Am 27.06.2011 21:47, schrieb Claas Leiner:

Hi,

The very usefull Colour Scale Bar Plugin don't work with QML-Files or
Colour-Tables, saved in Raster-Properties from qgis 1.7.

A Workaround for this Problem:

Open the QML- or textfile in a Editor
Find the word "INTERPOLATED"
replace "INTERPOLATED" to "DISCRETE"

Save the file.

Now you can use the QML or Txt-File in the Colour Scale Bar Plugin.

Claas
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[Qgis-user] Workarround for problem with Colour Scale Bar Plugin in QGIS 1.7

[Claas Leiner]

Hi,

The very usefull Colour Scale Bar Plugin don't work with QML-Files or 
Colour-Tables, saved in Raster-Properties from qgis 1.7.


A Workaround for this Problem:

Open the QML- or textfile in a Editor
Find the word "INTERPOLATED"
replace "INTERPOLATED" to "DISCRETE"

Save the file.

Now you can use the QML or Txt-File in the Colour Scale Bar Plugin.

Claas
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[Qgis-user] Mapfile Tools

[Derrick Frese]

New to the user list, so don't know if this has been mentioned before  I 
get an error when trying to install the Mapfile Tools plugin.  I would really 
like to be able to check this out.  Any idea of this will be fixed, ways to get 
around the problem, etc..?

Thanks.

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Re: [Qgis-user] Converting gif/jpeg images to shape files

[Alex Mandel]

On 06/27/2011 08:36 AM, Mick wrote:
> I have a collection of .gif and .jpg images of early maps I wish to
> convert into ESRI shape files for integration into a set of layers of
> 17th to 19th century Devon.
> 
> I did stumble on to what appeared to be the tool to do it but I can't
> find it again and can't think of the correct terminology for the
> process so I could google with some chance of success.
> 
> Can some kind soul please point me in the right direction.
> 
> mick

What you want is Raster->Vector conversion. GDALtools has some stuff for
this (or GDAL commandline), there may also be a few other plugins to try
in the list, but if none of those work GRASS has a lot of support for
this type of operation.

Of course that's assuming you want it automated. Depending on the
complexity of the map you could always do it by hand.

1st step if you can though is to Georeference the images.

Enjoy,
Alex

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[Qgis-user] Re: Ubuntu Lucid problem

[mayeulk]

I have same issue with Natty.

--
View this message in context: 
http://osgeo-org.1803224.n2.nabble.com/Ubuntu-Lucid-problem-tp6501905p6521442.html
Sent from the qgis-user mailing list archive at Nabble.com.
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[Qgis-user] Converting gif/jpeg images to shape files

[Mick]

I have a collection of .gif and .jpg images of early maps I wish to
convert into ESRI shape files for integration into a set of layers of
17th to 19th century Devon.

I did stumble on to what appeared to be the tool to do it but I can't
find it again and can't think of the correct terminology for the
process so I could google with some chance of success.

Can some kind soul please point me in the right direction.

mick
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Re: [Qgis-user] QGIS for water

[Saber Razmjooei]

I thought of that...
or OpenMI compliance or non-compliance?

On Mon, 2011-06-27 at 17:23 +0200, Werner Macho wrote:
> Hi Saber,
> probably we should divide into free and non free tools?
> 
> regards
> Werner
> 
> Am 27.06.2011 16:27, schrieb Saber Razmjooei:
> > Dear lists
> >
> > I have added a wiki page for hydrology and hydraulic (fluvial, coastal
> > and urban drainage) modelling with QGIS:
> > http://www.qgis.org/wiki/Hydrology_%26_Hydraulic_modelling#Hydraulics
> >
> > Feel free to add the software (proprietary or open source) you are using
> > to carry out your water related modelling.
> >
> > Once we have a list, we can look into ways of developing plugins/tools
> > to be able to use QGIS as platform to pre and post process GIS elements.
> >
> >
> > Cheers
> > Saber
> >
> >
> > ___
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> 
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Re: [Qgis-user] QGIS for water

[Werner Macho]

Hi Saber,
probably we should divide into free and non free tools?

regards
Werner

Am 27.06.2011 16:27, schrieb Saber Razmjooei:

Dear lists

I have added a wiki page for hydrology and hydraulic (fluvial, coastal
and urban drainage) modelling with QGIS:
http://www.qgis.org/wiki/Hydrology_%26_Hydraulic_modelling#Hydraulics

Feel free to add the software (proprietary or open source) you are using
to carry out your water related modelling.

Once we have a list, we can look into ways of developing plugins/tools
to be able to use QGIS as platform to pre and post process GIS elements.


Cheers
Saber


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Re: [Qgis-user] Editing polygons

[Andreas Neumann]

Hi Laura,

This is probably easy to solve:

* Settings --> Snapping Options --> Checkbox "Enable topological 
editing"


Does it work for you?

Depending on the QGIS version the setting may be at a different place 
in the menu.


Andreas

On Mon, 27 Jun 2011 16:32:53 +0200, Laura Guillot wrote:

I'm trying to reshape polygons of a lancover map, in order to make
them to be more
coincident with an overlaid raster image (orthophoto 1:5M).
If I just move the nodes to the correct position, I create a correct
line but leave a hole behind: the other
 polygon keeps its line where it was. See a pict here:
https://sites.google.com/site/lguillotdummy/home/boundaryproblem.jpeg
[1]

 Is there any way I could just move the lines as boundaries?

I've tried by converting poygons to lines first, but the problem is
very much the same: it seems like
there is always a double line, one for each adjacent polygon.

A possible solution would be having the lines automatically cut into
segments, each going from one vertex to another.
 And having just one segment for each boundary. Is that possible? Is
there a process to cut into segments after running polygons to lines?

Or perhaps there is a cmpletely different way to accomplish the same
goal: modifying the boundaries between polygons.

Thanks!

L


Links:
--
[1] 
https://sites.google.com/site/lguillotdummy/home/boundaryproblem.jpeg


--
--
Andreas Neumann
Böschacherstrasse 10A
8624 Grüt (Gossau ZH)
Switzerland
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[Qgis-user] Re: [Qgis-developer] QGIS for water

[Werner Macho]

Hi!

I think that would also fit onto the WIKI Page - just crate a new headline ..
We could collect anything which has to do with water - wether it is
wastewater, highwater or powerplant-water ;)

feel free to add

regards
Werner


On Mon, Jun 27, 2011 at 4:52 PM, Ornélio Hinterholz Junior
 wrote:
> Hi,
>
> When I posted here the topic about Water was for Water/Wastewater
> distribution
>
> There's no tools for creating and manipulating Networks/Graphs in QGIS like
> EPANET does
>
>
>
>
> Em Seg, 2011-06-27 às 15:27 +0100, Saber Razmjooei escreveu:
>
> Dear lists
>
> I have added a wiki page for hydrology and hydraulic (fluvial, coastal
> and urban drainage) modelling with QGIS:
> http://www.qgis.org/wiki/Hydrology_%26_Hydraulic_modelling#Hydraulics
>
> Feel free to add the software (proprietary or open source) you are using
> to carry out your water related modelling.
>
> Once we have a list, we can look into ways of developing plugins/tools
> to be able to use QGIS as platform to pre and post process GIS elements.
>
>
> Cheers
> Saber
>
>
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>
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>
>
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[Qgis-user] Editing polygons

[Laura Guillot]

I'm trying to reshape polygons of a lancover map, in order to make them to
be more
coincident with an overlaid raster image (orthophoto 1:5M).
If I just move the nodes to the correct position, I create a correct line
but leave a hole behind: the other
polygon keeps its line where it was. See a pict here:
https://sites.google.com/site/lguillotdummy/home/boundaryproblem.jpeg

 Is there any way I could just move the lines as boundaries?

I've tried by converting poygons to lines first, but the problem is very
much the same: it seems like
there is always a double line, one for each adjacent polygon.

A possible solution would be having the lines automatically cut into
segments, each going from one vertex to another.
And having just one segment for each boundary. Is that possible? Is there a
process to cut into segments after running polygons to lines?

Or perhaps there is a cmpletely different way to accomplish the same goal:
modifying the boundaries between polygons.

Thanks!

L
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[Qgis-user] QGIS for water

[Saber Razmjooei]

Dear lists

I have added a wiki page for hydrology and hydraulic (fluvial, coastal
and urban drainage) modelling with QGIS:
http://www.qgis.org/wiki/Hydrology_%26_Hydraulic_modelling#Hydraulics

Feel free to add the software (proprietary or open source) you are using
to carry out your water related modelling. 

Once we have a list, we can look into ways of developing plugins/tools
to be able to use QGIS as platform to pre and post process GIS elements.


Cheers
Saber


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Re: [Qgis-user] QGIS Python Plugin Installer

[Tony Bazeley]

On Sun, 2011-06-26 at 11:18 -0700, Alex Mandel wrote:
> On 06/26/2011 05:42 AM, Tony Bazeley wrote:
> > On Sat, 2011-06-25 at 21:12 -0700, Alex Mandel wrote:
> >> On 06/25/2011 08:57 PM, Tony Bazeley wrote:
> >>> Hi,
> >>>
> >>> I'm having some trouble with the QGIS Python Plugin Installer in 1.6
> >>> under Ubuntu Natty Narwhal
> >>>
> >>> The user guide instructions:
> >>>
> >>> "In order to download and install an external Python plugin,
> >>> click the menu Plugins> Fetch Python Plugins... . 
> >>>
> >>> The Plugin Installer window will appear (figure 9.2) with the tab
> >>> Plugins, containing a list of all locally installed Python plugins, as
> >>> well as plugins available in remote repositories."
> >>>
> >>> don't seem applicable as no Fetch Python Plugins entry exists ( see
> >>> attached image).
> >>>
> >>> I've recently upgraded to Natty Narwhal, and have uninstalled and
> >>> reinstalled Qgis.
> >>>
> >>> I've also downloaded the plugin_installer into /usr/lib/qgis/plugins
> >>> with no effect.
> >>>
> >>> Any pointers would be much appreciated.
> >>>
> >>>
> >>
> >> Make sure you have also installed the python-qgis package on Ubuntu.
> >> There should be no need to manually download the plugin installer.
> >>
> >> After you do that the menu and the several key plugins (ftools and
> >> GDALtools) will show up.
> >>
> >> Thanks,
> >> Alex
> >> _
> > Thanks for your response, Alex.
> > 
> > The problem seems to be that python-qgis is dependent on
> > python-qgis-common, which in turn is dependent on python-gdal.
> > 
> > The default python-gdal (1.7.3-2~maverick) is reported as broken.
> > 
> > Looks like the ubuntu gis repository is still a maverick version, but in
> > a state of transition.
> > 
> > I find it a bit confusing as all three packages above have maverick
> > defaults but natty alternatives. 
> > 
> > However the alternatives appear to be earlier versions(eg 1.6.3 for
> > python-gdal). 
> > 
> > The package manager cautions against forcing a version:
> > 
> > "The package manager always selects the most applicable version
> > available. If you force a different version from the default one, errors
> > in the dependency handling can occur"
> > 
> > Tony
> > 
> 
> Are you using Ubuntu GIS unstable (Despite it's name that is the one to
> use)? I'll get on there and double check and see if we can make sure
> that's all up to date. python-gdal should be 1.8 in ubuntugis already,
> at least it is on lucid.
> 
> Thanks,
> Alex
> 
That seems to have done the trick. 
Thanks so much, Alex

Tony

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Re: [Qgis-user] SDA4PP Krige

[Giovanni Manghi]

> Retried now, with recent QGIS, no crash.
> Can anyone test on different settings?
> Simply install the plugin, open a raster, and apply a custom color table to 
> it.

I naver had this problem, but had many other instead. Now I'm pretty
busy but in the next days I'll send to Volkan a list of issues.

cheers

-- Giovanni --

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Re: [Qgis-user] SDA4PP Krige

[Paolo Cavallini]

Il 23/06/2011 09:07, Volkan Kepoglu ha scritto:

> In your cases how crash happens? when applying a color table to a raster.???

Retried now, with recent QGIS, no crash.
Can anyone test on different settings?
Simply install the plugin, open a raster, and apply a custom color table to it.
All the best.

-- 
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Re: [Qgis-user] import floating point raster (*.flt)

[Even Rouault]

Selon Els Goossens :

> Hi list,
> I want to import a esri float raster (*.flt-format, 32 bit, floating point)
> into QGIS. QGIS imports this format as a 8 bit unsigned integer, resulting in
> wrong values (scaled between 0 and 255) and a modified extend (enlarged in
> both x and y direction).

Yeah, this issue has just been raised on gdal-dev mailing list. See
http://lists.osgeo.org/pipermail/gdal-dev/2011-June/029166.html for more details
and a workaround until GDAL 1.8.1 is released

> Is there a way to convert the *.flt format to a file format that can be
> imported into QGIS?

If you can use a version of GDAL < 1.8.0, you can gdal_translate it into a tif
for example.

> Many thanks,
> Els Goossens
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[Qgis-user] import floating point raster (*.flt)

[Els Goossens]

Hi list,
I want to import a esri float raster (*.flt-format, 32 bit, floating point) 
into QGIS. QGIS imports this format as a 8 bit unsigned integer, resulting in 
wrong values (scaled between 0 and 255) and a modified extend (enlarged in both 
x and y direction). 
Is there a way to convert the *.flt format to a file format that can be 
imported into QGIS?
Many thanks,
Els Goossens
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[Qgis-user] where to report plugin issues

[maning sambale]

Not all plugins are included here: http://hub.qgis.org/projects/

Where do we report plugin problems in the mean time?


-- 
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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