[GRASS-dev] Problems 3D rendering with WxNviz (Ubuntu)

Fri Mar 28 06:11:04 PDT 2014

Hi,

On Fri, Mar 28, 2014 at 7:46 AM, Johannes Radinger <
johannesradinger at gmail.com> wrote:

> Hi Anna,
> Hi all,
>
> to report back. I know successfully built and installed wxPython3.
> Subsequently I rebuilt and installed GRASS7
> based on the newest revision. Here my system and version output:
>
> GRASS version:
> 7.0.svn
> GRASS SVN Revision:
> 59491M
> Build Date:
> 2014-03-28
> Build Platform:
> i686-pc-linux-gnu
> GDAL/OGR:
> 1.10.0
> PROJ.4:
> 4.8.0
> GEOS:
> 3.3.8
> SQLite:
> 3.7.9
> Python:
> 2.7.3
> wxPython:
> 3.0.0.0
> Platform:
> Linux-3.2.0-60-generic-pae-i686-with-Ubuntu-12.04-precise
>
>
> GRASS 7.0.svn (2014)
> libgis Revision: 59317
> libgis Date: 2014-03-24 20:38:32 +0100 (Mon, 24 Mar 2014)
> PROJ.4: 4.8.0
> GDAL/OGR: 1.10.0
> GEOS: 3.3.8
> SQLite: 3.7.9
>
> I again tried setting all 4 possible numbers for the depth buffer. But
> still, GRASS does not render any 3D rastermap. In contrast to before, now I
> don't the message that I should try changing the buffer number.
> Here some output from the Python Shell that may or may not be helpful:
>
> import wx
> import wxversion
> wx.glcanvas.GLCanvas_IsDisplaySupported([0,16,24,32])
> False
> wx.glcanvas.GLCanvas_IsDisplaySupported([0])
> False
> wx.glcanvas.GLCanvas_IsDisplaySupported([16])
> False
> wx.glcanvas.GLCanvas_IsDisplaySupported([24])
> False
> wx.glcanvas.GLCanvas_IsDisplaySupported([32])
> False
> wxversion.getInstalled
> <function getInstalled at 0xb6f89bfc>
> wxversion.getInstalled()
> ['3.0-gtk2']
>
>
You should try this:
import wx
from wx.glcanvas       import WX_GL_DEPTH_SIZE
wx.glcanvas.GLCanvas_IsDisplaySupported([WX_GL_DEPTH_SIZE, 0, 0])
wx.glcanvas.GLCanvas_IsDisplaySupported([WX_GL_DEPTH_SIZE, 16, 0])
wx.glcanvas.GLCanvas_IsDisplaySupported([WX_GL_DEPTH_SIZE, 32, 0])

> I get now a problem reported in the GUI's command console which is printed
> when I start the 3D viewing mode:
> Starting 3D view
> mode...
> Traceback (most recent call last):
>   File "/usr/local/grass-7.0.svn/etc/gui/wxpython/mapdisp/to
> olbars.py", line 230, in OnSelectTool
>
> self.parent.AddNviz()
>   File "/usr/local/grass-7.0.svn/etc/gui/wxpython/mapdisp/fr
> ame.py", line 362, in AddNviz
>
> Map = self.Map, tree = self.tree, lmgr = self._layerManager)
>   File "/usr/local/grass-7.0.svn/etc/gui/wxpython/nviz/mapwi
> ndow.py", line 118, in __init__
>
> self.context = glcanvas.GLContext(self)
>   File "/usr/local/lib/python2.7/dist-
> packages/wx-3.0-gtk2/wx/glcanvas.py", line 67, in __init__
>
> _glcanvas.GLContext_swiginit(self,_glcanvas.new_GLContext(*a
> rgs, **kwargs))
> wx._core
> .
> PyAssertionError
> :
> C++ assertion "vi" failed at /usr/local/src/wxPython-
> src-3.0.0.0/src/unix/glx11.cpp(59) in wxGLContext(): invalid
> visual for OpenGL
>
>
I am wondering if it can't be some deeper problem, could you try to run any
other application which uses OpenGL? For example MeshLab is using it I
think, or any other you use.

Anna

So maybe this can give some hints. Just let me know what I can do that you
> can help me solving the problem.
>
> Best,
> Johannes
>
>
> On Wed, Mar 26, 2014 at 5:40 PM, Anna Petrášová <kratochanna at gmail.com>wrote:
>
>>
>>
>>
>> On Wed, Mar 26, 2014 at 5:27 AM, Johannes Radinger <
>> johannesradinger at gmail.com> wrote:
>>
>>> Hi,
>>>
>>> I just reinstalled wxPython and recompiled GRASS to be sure that I am
>>> working with the newest versions.
>>> The problem still persists. Here how I installed wxPython:
>>>
>>>   sudo apt-get install python-wxgtk2.8 python-wxtools wx2.8-doc wx2.8-examples wx2.8-headers wx2.8-i18n
>>>
>>> and then I also followed another procedure explained here:
>>> http://stackoverflow.com/questions/14007557/installing-wxpython-on-ubuntu-12-04
>>>
>>>    1. First make sure that you have Python installed
>>>    2. Install wxGTK 2.8 with the command, 'sudo apt-get install
>>>    python-wxgtk2.8'
>>>    3. Run the command, 'apt-get source -d wxwidgets2.8'
>>>    4. Now run, 'dpkg-source -x wxwidgets2.8_2.8.12.1-6ubuntu2.dsc'
>>>    5. cd wxwidgets2.8-2.8.12.1
>>>    6. cd wxPython
>>>    7. Now run the command, 'sudo python setup.py install'
>>>    8. wxPython and wxWidgets are now successfully installed!
>>>
>>>
>>> Now it seems that two versions are installed
>>> >>> import wxversion
>>> >>> wxversion.getInstalled()
>>> ['2.8-gtk2-unicode', '2.8-gtk2-unicode']
>>>
>>> Does that help?
>>>
>>> Is there a way the GRASS itself reports the versions of e.g. wxpython?
>>> Maybe via the g.version command?!
>>>
>>
>> When you go in menu Help ->About system you should be able to see it.
>> Also, when you go to Python Shell, you can type:
>> import wx
>> wx.version()
>>
>> In wxPython >= 2.9, there is a method IsDisplaySupported which would help
>> to understand more about the problem [1]. The only thing which I know you
>> could try is to install wxPython 3. You can either compile it yourself or
>> update Ubuntu to the latest one and install the package. However I can't
>> guarantee it helps.
>>
>> Anna
>>
>> [1]
>> http://stackoverflow.com/questions/14715739/how-can-i-determine-the-max-allowable-wx-gl-depth-size-for-a-wx-glcanvas/
>>
>>>
>>>
>>> /Johannes
>>>
>>>
>>>
>>> On Wed, Mar 26, 2014 at 5:11 AM, Anna Petrášová <kratochanna at gmail.com>wrote:
>>>
>>>>
>>>>
>>>>
>>>> On Tue, Mar 25, 2014 at 6:30 AM, Johannes Radinger <
>>>> johannesradinger at gmail.com> wrote:
>>>>
>>>>> Hi,
>>>>>
>>>>> it wanted to try out the 3D capabilities of GRASS 7. However when I
>>>>> change to the 3d view (WxNviz) nothing is rendered, instead I get the
>>>>> message that I should try a different depth buffer number. This procedure
>>>>> is also mentioned in the wiki (http://grasswiki.osgeo.org/wiki/WxNviz
>>>>> ).
>>>>> However, I tried now all possible numbers (0,16,24,32) saved the
>>>>> preferences and restarted the gui with the new settings but the problem
>>>>> persists (BTW, the possible number 0 is mentioned in the wiki but not in
>>>>> the preferences GUI).
>>>>>
>>>>> I am not sure what is causing the problem in my case. Here I just need
>>>>> to mention that I am working on a slightly special set up. GRASS is running
>>>>> on a virtual Ubuntu machine (via VMWare) which is installed on a central
>>>>> multi core machine (Intel® Xeon(R) CPU X5675 @ 3.07GHz × 8, Ubuntu 12.04,
>>>>> 32 bit). I connect to the virtual machine via a remote desktop connection
>>>>> (RDP connection) from a so called thin-client.
>>>>>
>>>>> My GRASS setup as follows:
>>>>> version=7.0.svn
>>>>> date=2014
>>>>> revision=59321M
>>>>> build_date=2014-03-25
>>>>> build_platform=i686-pc-linux-gnu
>>>>> libgis_revision=59317
>>>>> libgis_date="2014-03-24 20:38:32 +0100 (Mon, 24 Mar 2014) "
>>>>> proj4=4.8.0
>>>>> gdal=1.10.0
>>>>> geos=3.3.8
>>>>> sqlite=3.7.9
>>>>>
>>>>>
>>>>> Does anyone have a suggestion how to deal with that problem or how to
>>>>> find out where the exact problem (remote connection, Ubuntu, GRASS) is
>>>>> located?
>>>>>
>>>>
>>>> Could you post also wxPython version?
>>>>
>>>> Thanks
>>>> Anna
>>>>
>>>>
>>>>> Thanks,
>>>>> Johannes
>>>>>
>>>>> _______________________________________________
>>>>> grass-dev mailing list
>>>>> grass-dev at lists.osgeo.org
>>>>> http://lists.osgeo.org/mailman/listinfo/grass-dev
>>>>>
>>>>
>>>>
>>>
>>
>
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