Dear,
I have selected some training areas to apply supervised classification using g.gui.iclass in Grass 7.0 windows 64 bit. I could exported the training areas to a vector map to save my work but I cannot import the vector into g.gui.iclass to rerun the analysis.
I got the following error:
Traceback (most recent call last):
File “C:\Program Files (x86)\GRASS GIS 7.0.0\gui\wxpython\iclass\frame.py”, line 537, in OnImportAreas
self.ImportAreas(vName)
File “C:\Program Files (x86)\GRASS GIS 7.0.0\gui\wxpython\iclass\frame.py”, line 594, in ImportAreas
self.poMapInfo = digitClass.OpenMap(vname, tmp = True)
File “C:\Program Files (x86)\GRASS GIS 7.0.0\gui\wxpython\vdigit\wxdigit.py”, line 1649, in OpenMap
self.poMapInfo = self._display.OpenMap(str(name), str(mapset), update, tmp)
File “C:\Program Files (x86)\GRASS GIS 7.0.0\gui\wxpython\vdigit\wxdisplay.py”, line 962, in OpenMap
Vect_set_updated(self.poMapInfo, True) # track updated lines at update mode
WindowsError: exception: access violation reading 0x000002E4
I could open the vector in the display but not import it into g.gui.iclass. When I opened the vector attribute table I can see all 3 categories, but it is not specified how many training sample are within each class. Is that correct? See the figure bellow.
Thanks in advance for any help.
Regards,
Thayse Nery
PhD. Student
School of Agricultural and Resource Economics (M089)
The University of Western Australia
35 Stirling Highway, Crawley WA 6009, Australia
(attachments)
Hi,
I have selected some training areas to apply supervised classification using g.gui.iclass in Grass 7.0 windows 64 bit. I could exported the training areas to a vector map to save my work but I cannot import the vector into g.gui.iclass to rerun the analysis.
I got the following error:
Traceback (most recent call last):
File “C:\Program Files (x86)\GRASS GIS 7.0.0\gui\wxpython\iclass\frame.py”, line 537, in OnImportAreas
self.ImportAreas(vName)
File “C:\Program Files (x86)\GRASS GIS 7.0.0\gui\wxpython\iclass\frame.py”, line 594, in ImportAreas
self.poMapInfo = digitClass.OpenMap(vname, tmp = True)
File “C:\Program Files (x86)\GRASS GIS 7.0.0\gui\wxpython\vdigit\wxdigit.py”, line 1649, in OpenMap
self.poMapInfo = self._display.OpenMap(str(name), str(mapset), update, tmp)
File “C:\Program Files (x86)\GRASS GIS 7.0.0\gui\wxpython\vdigit\wxdisplay.py”, line 962, in OpenMap
Vect_set_updated(self.poMapInfo, True) # track updated lines at update mode
WindowsError: exception: access violation reading 0x000002E4
I could open the vector in the display but not import it into g.gui.iclass. When I opened the vector attribute table I can see all 3 categories, but it is not specified how many training sample are within each class. Is that correct?
Thanks in advance for any help.
Regards,
Thayse Nery
PhD. Student
School of Agricultural and Resource Economics
The University of Western Australia
(attachments)
On Wed, Jun 17, 2015 at 10:07 AM, Thayse Nery <thayse.nery@hotmail.com> wrote:
Hi,
I have selected some training areas to apply supervised classification using g.gui.iclass in Grass 7.0 windows 64 bit. I could exported the training areas to a vector map to save my work but I cannot import the vector into g.gui.iclass to rerun the analysis.
I got the following error:
Traceback (most recent call last):
File “C:\Program Files (x86)\GRASS GIS 7.0.0\gui\wxpython\iclass\frame.py”, line 537, in OnImportAreas
self.ImportAreas(vName)
File “C:\Program Files (x86)\GRASS GIS 7.0.0\gui\wxpython\iclass\frame.py”, line 594, in ImportAreas
self.poMapInfo = digitClass.OpenMap(vname, tmp = True)
File “C:\Program Files (x86)\GRASS GIS 7.0.0\gui\wxpython\vdigit\wxdigit.py”, line 1649, in OpenMap
self.poMapInfo = self._display.OpenMap(str(name), str(mapset), update, tmp)
File “C:\Program Files (x86)\GRASS GIS 7.0.0\gui\wxpython\vdigit\wxdisplay.py”, line 962, in OpenMap
Vect_set_updated(self.poMapInfo, True) # track updated lines at update mode
WindowsError: exception: access violation reading 0x000002E4
I could open the vector in the display but not import it into g.gui.iclass. When I opened the vector attribute table I can see all 3 categories, but it is not specified how many training sample are within each class. Is that correct?
Just for the record, these problems were reported in:
https://trac.osgeo.org/grass/ticket/2699
For list of active and closed tickets about g.gui.iclass see:
https://trac.osgeo.org/grass/wiki/wxGUIDevelopment/wxIClass#Listoftickets
Thanks in advance for any help.
Regards,
Thayse Nery
PhD. Student
School of Agricultural and Resource Economics
The University of Western Australia
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