[GRASS-dev] [GRASS-user] wxGUI raster digitizer available

Thu Nov 20 10:31:24 PST 2014

On Thu, Nov 20, 2014 at 4:37 AM, Paulo van Breugel <p.vanbreugel at gmail.com>
wrote:

> Hi Anna
>
> This is great, thanks! This is going to be a real time saver.
>
> I am having trouble however running it. I seems to work fine except that I
> can't save the edits. To leave the editing session, I have to select no
> when asked to save the work.
>
> Not sure if the below helps, but in the terminal I get the message:
> GRASS_INFO_ERROR(30864,1): Raster map <pnv_malawi2_ag2_backupcopy_30725>
> not found
> GRASS_INFO_END(30864,1)
>
> From the command console:
>
> Exception in thread Thread-8:
> Traceback (most recent call last):
>   File "/usr/lib/python2.7/threading.py", line 810, in
> __bootstrap_inner
>     self.run()
>   File "/usr/local/grass7/grass-7.1.svn/gui/wxpython/core/gt
> hread.py", line 94, in run
>     ret = vars()['callable'](*args, **kwds)
>   File "/usr/local/grass7/grass-7.1.svn/gui/wxpython/rdigit/
> controller.py", line 467, in _exportRaster
>     output=self._editedRaster, overwrite=True, quiet=True)
>   File "/usr/local/grass7/grass-7.1.svn/etc/python/grass/scr
> ipt/core.py", line 373, in run_command
>     return handle_errors(returncode, returncode, args,
> kwargs)
>   File "/usr/local/grass7/grass-7.1.svn/etc/python/grass/scr
> ipt/core.py", line 308, in handle_errors
>     returncode=returncode)
> CalledModuleError: Module run None ['r.patch', '--o', '--q',
> u'input=x47731795,pnv_malawi2_ag2_backupcopy_30725',
> u'output=pnv_malawi2_ag2 at vegetation'] ended with error
> Process ended with non-zero return code 1. See errors in the
> (error) output.
>

Strange, could you describe the exact steps?

>
>
>
> On Wed, Nov 19, 2014 at 11:56 PM, Anna Petrášová <kratochanna at gmail.com>
> wrote:
>
>>
>>
>> On Wed, Nov 19, 2014 at 3:31 PM, Markus Neteler <neteler at osgeo.org>
>> wrote:
>>
>>> Hi Anna,
>>>
>>> On Tue, Nov 18, 2014 at 5:19 AM, Anna Petrášová <kratochanna at gmail.com>
>>> wrote:
>>> > Hi all,
>>> >
>>> > I added raster digitizer in r62792 in trunk.
>>>
>>> what a great job!
>>>
>>> If you didn't find it: it is in the "Map Display" windows, then
>>> selector on the right side (2D/3D/Vector digitizer/Raster digitizer).
>>>
>>
>> Once everything works, I will probably make a short video tutorial.
>>
>>>
>>> > You are welcome to test it and
>>> > report bugs/enhancements.
>>> > It currently allows to draw areas, lines and points and specify width
>>> to
>>> > buffer individual features. We can discuss some changes in gui
>>> interface and
>>> > behavior if you find the current one intuitive.  There is still a lot
>>> to
>>> > improve especially in the drawing part (needs some refactoring of the
>>> old
>>> > drawing code).
>>>
>>> One general thing I found (also valid for the vector digitizer): I
>>> wonder where to put a message what the mouse buttons mean.
>>> Maybe in the status bar at bottom of the display/digitizer window?
>>>
>>> > Features:
>>> > - draw area, line, point
>>>
>>> ... works.
>>>
>>> > - specify buffer width for individual features to create for example
>>> > circles, roads of certain width...
>>>
>>> ... maybe rename from "Width" to "Buffer width"? Otherwise it could be
>>> confused with the drawing line width.
>>>
>>
>> There is not much space in toolbar..., especially if we in the future add
>> more items (settings, label editing for example). What about just 'Buffer'?
>> Currently the width is the width of the buffered line/diameter of the point
>> (circle), which means 2 x buffer distance, so if we change it to buffer,
>> then the value should be half of the line width?
>>
>>>
>>> > - specify background map
>>>
>>> ... works (maybe have a button to optionally take computational region
>>> from that map?)
>>>
>>
>> Yes possibly, I am not sure about the region in general, if there should
>> be any special handling.
>>
>>>
>>> > - simple undo
>>> > - save button to save results during drawing
>>>
>>> here I got an issue somewhere:
>>>
>>> Exception in thread Thread-4:
>>> Traceback (most recent call last):
>>>   File "/usr/lib64/python2.7/threading.py", line 811, in
>>> __bootstrap_inner
>>>     self.run()
>>>   File "/home/neteler/software/grass71/dist.x86_64-unknown-
>>> linux-gnu/gui/wxpython/core/gthread.py", line 94, in run
>>>     ret = vars()['callable'](*args, **kwds)
>>>   File "/home/neteler/software/grass71/dist.x86_64-unknown-
>>> linux-gnu/gui/wxpython/rdigit/controller.py", line 432, in
>>> _exportRaster
>>>     if item.GetPropertyVal('widthValue') and \
>>>   File "/home/neteler/software/grass71/dist.x86_64-unknown-
>>> linux-gnu/gui/wxpython/mapwin/graphics.py", line 439, in
>>> GetPropertyVal
>>>     raise KeyError(_("Property does not exist: %s") %
>>> (propName))
>>> KeyError: 'Property does not exist: widthValue'
>>>
>>>
>>>
>> it normally works... Does this happen every time?
>>
>>
>>> > - keeps drawing order in the output raster map
>>> > - change color of drawing
>>> > - doesn't block gui when exporting raster (which can take some time)
>>>
>>> Nice!
>>>
>>> > Does not support (yet?):
>>> > - adding labels
>>> > - interactive setting color of raster cells (not planned, there are
>>> other tools)
>>> > - vector export/import
>>> >
>>> > Known issues:
>>> > - r.in.poly supports only CELL (I just realized that, this must be
>>> changed)
>>>
>>> (meanwhile you changed that already, thanks)
>>>
>>> > - various small drawing issues
>>> > - slow when exporting features with buffers (r.grow is slow, probably
>>> > because it's a script)
>>>
>>> Not sure but r.buffer would be appropriate/faster?
>>>
>>
>> I considered that but the cells grown by r.buffer have different values
>> than the original ones, so I would have to reclassify it, so I am not sure
>> if it would be faster in the end.
>>
>>
>> Thanks for your feedback!
>>
>> Anna
>>
>>
>>> Markus
>>>
>>
>>
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>>
>
>
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