#493: wxgui: segfault in g.region causes crash of GUI
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Reporter: mlennert | Owner: grass-dev@lists.osgeo.org
Type: enhancement | Status: new
Priority: minor | Milestone: 6.4.0
Component: wxGUI | Version: svn-trunk
Keywords: | Platform: Unspecified
Cpu: Unspecified |
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(related to #492)
When g.region segfaults in a location, the wxGUI crashes at startup with
the following traceback:
{{{
Traceback (most recent call last):
File "/home/mlennert/SRC/GRASS/grass_trunk/dist.i486-pc-linux-
gnu/etc/wxpython/wxgui.py", line 1592, in <module>
sys.exit(main())
File "/home/mlennert/SRC/GRASS/grass_trunk/dist.i486-pc-linux-
gnu/etc/wxpython/wxgui.py", line 1585, in main
app = GMApp(workspaceFile)
File "/home/mlennert/SRC/GRASS/grass_trunk/dist.i486-pc-linux-
gnu/etc/wxpython/wxgui.py", line 1507, in __init__
wx.App.__init__(self, False)
File "/usr/lib/python2.5/site-packages/wx-2.8-gtk2-unicode/wx/_core.py",
line 7836, in __init__
self._BootstrapApp()
File "/usr/lib/python2.5/site-packages/wx-2.8-gtk2-unicode/wx/_core.py",
line 7433, in _BootstrapApp
return _core_.PyApp__BootstrapApp(*args, **kwargs)
File "/home/mlennert/SRC/GRASS/grass_trunk/dist.i486-pc-linux-
gnu/etc/wxpython/wxgui.py", line 1523, in OnInit
workspace = self.workspaceFile)
File "/home/mlennert/SRC/GRASS/grass_trunk/dist.i486-pc-linux-
gnu/etc/wxpython/wxgui.py", line 175, in __init__
self.NewDisplay(show=False)
File "/home/mlennert/SRC/GRASS/grass_trunk/dist.i486-pc-linux-
gnu/etc/wxpython/wxgui.py", line 1161, in NewDisplay
auimgr=self._auimgr, showMapDisplay=show)
File "/home/mlennert/SRC/GRASS/grass_trunk/dist.i486-pc-linux-
gnu/etc/wxpython/gui_modules/wxgui_utils.py", line 106, in __init__
Map=self.Map, auimgr=self.auimgr)
File "/home/mlennert/SRC/GRASS/grass_trunk/dist.i486-pc-linux-
gnu/etc/wxpython/gui_modules/mapdisp.py", line 259, in __init__
self.MapWindow.ZoomHistory(self.Map.region['n'],
KeyError: 'n'
}}}
I can imagine that the GUI cannot function without a functional g.region,
but would it be possible to create a more graceful exit/error message ?
--
Ticket URL: <http://trac.osgeo.org/grass/ticket/493>
GRASS GIS <http://grass.osgeo.org>