[GRASS-dev] [GRASS GIS] #3652: Map display exception when switching to vector digitizer mode

[GRASS GIS]

#3652: Map display exception when switching to vector digitizer mode
-----------------------+-------------------------
 Reporter:  balagates  |      Owner:  grass-dev@…
     Type:  defect     |     Status:  new
 Priority:  minor      |  Milestone:
Component:  wxGUI      |    Version:  7.4.0
 Keywords:             |        CPU:  OSX/Intel
 Platform:  MacOSX     |
-----------------------+-------------------------
 If you have a vector drawn in the map window the first time you change the
 mode from "2D View" to "Vector digitizer" it clears the map window and in
 the console I see an exception:


 {{{
 Traceback (most recent call last):
   File
 "/opt/local/share/grass-7.4.0/gui/wxpython/core/gthread.py",
 line 117, in OnDone

 event.ondone(event)
   File
 "/opt/local/share/grass-7.4.0/gui/wxpython/core/render.py",
 line 442, in OnRenderDone

 self.updateProgress.emit(layer=self.layer)
   File "/opt/local/share/grass-7.4.0/etc/python/grass/pydisp
 atch/signal.py", line 229, in emit

 dispatcher.send(signal=self, *args, **kwargs)
   File "/opt/local/share/grass-7.4.0/etc/python/grass/pydisp
 atch/dispatcher.py", line 349, in send

 **named
   File "/opt/local/share/grass-7.4.0/etc/python/grass/pydisp
 atch/robustapply.py", line 60, in robustApply

 return receiver(*arguments, **named)
   File
 "/opt/local/share/grass-7.4.0/gui/wxpython/core/render.py",
 line 717, in ReportProgress

 self.renderDone.emit()
   File "/opt/local/share/grass-7.4.0/etc/python/grass/pydisp
 atch/signal.py", line 229, in emit

 dispatcher.send(signal=self, *args, **kwargs)
   File "/opt/local/share/grass-7.4.0/etc/python/grass/pydisp
 atch/dispatcher.py", line 349, in send

 **named
   File "/opt/local/share/grass-7.4.0/etc/python/grass/pydisp
 atch/robustapply.py", line 60, in robustApply

 return receiver(*arguments, **named)
   File
 "/opt/local/share/grass-7.4.0/gui/wxpython/core/render.py",
 line 623, in OnRenderDone

 raise GException(_("Rendering failed: %s" % msg))
 core.gcmd
 .
 GException
 :
 Rendering failed: Expecting 825x586 image but got 825x622
 image.

 }}}

 One workaround after the exception is to click on the "Render Map" icon.

 I suspect the problem is that the switch to "Vector digitizer" mode adds a
 row of toolbar icons reducing the area to draw the image but the size
 change has not propogated to everything that needs it.  Interestingly
 switching modes back to "2D View" and then to "Vector digitizer" a second
 time does not produce the error even though the vector digitizer toolbar
 disappears and then is re-added.

-- 
Ticket URL: <https://trac.osgeo.org/grass/ticket/3652>
GRASS GIS <https://grass.osgeo.org>