[GRASS-dev] [GRASS GIS] #2439: g.gui.iclass crashes

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1

#2439: g.gui.iclass crashes
---------------------------------------------------+------------------------
Reporter: madi | Owner: grass-dev@…
     Type: defect | Status: new
Priority: normal | Milestone: 7.1.0
Component: wxGUI | Version: svn-trunk
Keywords: g.gui.iclass, classification, imagery | Platform: Linux
      Cpu: x86-64 |
---------------------------------------------------+------------------------
Hi,

I try to use g.gui.iclass but it crashes. What I do:
1) Launch g.gui.iclass
2) Add RGB map layer
3) Zoom and pan
4) Add a class in the class manager (no spaces in the name, no fancy
characters), and assign a custom color
5) Select "digitize new area" and start digitizing
6) I manage to digitize a couple of polygons, then it explodes -
disappears with no errors or anything.

Linux RHEL 6.5
GRASS 7.1.svn (r62079)

Thanks

--
Ticket URL: <https://trac.osgeo.org/grass/ticket/2439&gt;
GRASS GIS <http://grass.osgeo.org>

2

#2439: g.gui.iclass crashes
---------------------------------------------------+------------------------
Reporter: madi | Owner: grass-dev@…
     Type: defect | Status: new
Priority: normal | Milestone: 7.1.0
Component: wxGUI | Version: svn-trunk
Keywords: g.gui.iclass, classification, imagery | Platform: Linux
      Cpu: x86-64 |
---------------------------------------------------+------------------------

Comment(by annakrat):

Are you able to reproduce it several times or is it more random behavior?
It is working for me on Ubuntu.

--
Ticket URL: <http://trac.osgeo.org/grass/ticket/2439#comment:1&gt;
GRASS GIS <http://grass.osgeo.org>

3

#2439: g.gui.iclass crashes
---------------------------------------------------+------------------------
Reporter: madi | Owner: grass-dev@…
     Type: defect | Status: new
Priority: normal | Milestone: 7.1.0
Component: wxGUI | Version: svn-trunk
Keywords: g.gui.iclass, classification, imagery | Platform: Linux
      Cpu: x86-64 |
---------------------------------------------------+------------------------

Comment(by madi):

It happens all the times. Now three times in a row. Thanks

--
Ticket URL: <http://trac.osgeo.org/grass/ticket/2439#comment:2&gt;
GRASS GIS <http://grass.osgeo.org>

4

#2439: g.gui.iclass crashes
---------------------------------------------------+------------------------
Reporter: madi | Owner: grass-dev@…
     Type: defect | Status: new
Priority: normal | Milestone: 7.1.0
Component: wxGUI | Version: svn-trunk
Keywords: g.gui.iclass, classification, imagery | Platform: Linux
      Cpu: x86-64 |
---------------------------------------------------+------------------------

Comment(by annakrat):

Does vector digitizer works for you, can you digitize areas? g.gui.iclass
is using it. Is there any specific number of polygons you manage to
digitize before it crashes or it changes every time?

--
Ticket URL: <http://trac.osgeo.org/grass/ticket/2439#comment:3&gt;
GRASS GIS <http://grass.osgeo.org>

5

#2439: g.gui.iclass crashes
---------------------------------------------------+------------------------
Reporter: madi | Owner: grass-dev@…
     Type: defect | Status: new
Priority: normal | Milestone: 7.1.0
Component: wxGUI | Version: svn-trunk
Keywords: g.gui.iclass, classification, imagery | Platform: Linux
      Cpu: x86-64 |
---------------------------------------------------+------------------------

Comment(by madi):

Replying to [comment:3 annakrat]:
> Does vector digitizer works for you, can you digitize areas?

Yes it works (although the digitizer somehow "retains" the cursor from the
terminal even after closing it, thus, before doing anything else in the
terminal, I have to ctrl+c to get back my cursor).

> g.gui.iclass is using it. Is there any specific number of polygons you
manage to digitize before it crashes or it changes every time?

I managed to digitize up to 3 small polygons. Trials were uniformly
distributed between (1,3).
Since I verified that the digitizer works standalone, I have created the
training map separately and then launched the g.gui.iclass from command
line passing it. It doesn't seem to work though, the histograms are empty,
coincident plots are horizontal lines and "scatter plots" only shows the
grey empty area that is probably supposed to lie beneath the graphs.
I understand that this problems are nearly impossible to reproduce on
other machines. I'll try with my laptop to see if it works there.

Thank you for your time

--
Ticket URL: <http://trac.osgeo.org/grass/ticket/2439#comment:4&gt;
GRASS GIS <http://grass.osgeo.org>

6

#2439: g.gui.iclass crashes
---------------------------------------------------+------------------------
Reporter: madi | Owner: grass-dev@…
     Type: defect | Status: new
Priority: normal | Milestone: 7.1.0
Component: wxGUI | Version: svn-trunk
Keywords: g.gui.iclass, classification, imagery | Platform: Linux
      Cpu: x86-64 |
---------------------------------------------------+------------------------

Comment(by madi):

Hi,

another tentative on a different computer [Fedora 20 installed, GRASS
7.1.svn (r62244), wxPython 2.8.12.0-5, Python 2.7.5] led to a crash. This
time the digitization process went a little bit further, the crash
occurred when i pushed "run analysis". The whole GUI crashed. No error
shown.

Thanks,
madi

--
Ticket URL: <https://trac.osgeo.org/grass/ticket/2439#comment:5&gt;
GRASS GIS <http://grass.osgeo.org>

7

#2439: g.gui.iclass crashes
---------------------------------------------------+------------------------
Reporter: madi | Owner: grass-dev@…
     Type: defect | Status: new
Priority: normal | Milestone: 7.1.0
Component: wxGUI | Version: svn-trunk
Keywords: g.gui.iclass, classification, imagery | Platform: Linux
      Cpu: x86-64 |
---------------------------------------------------+------------------------

Comment(by neteler):

I just tried on Fedora 20, G7.trunk, r62247, confirmed.

The issue occurs when snapping is applied to close a boundary. To
replicate:

{{{
# NC location
g.region rast=elev_state_500m -p
g.gisenv set=DEBUG=3
g.gui.iclass
}}}

  * load raster map 'elev_state_500m@PERMANENT' into upper display
  * create a class (default settings are fine)
  * digitize some new area with the left-most digitizer tool
  * do several, let enough space to a have large snapping area
  * let one cut another (overlap)
  * ZAP

The rest of the output is this:

{{{
D2/3: Clean and create array for line B
D3/3: cross = 0 seg1/dist1 = 0/0.000000 seg2/dist2 = 0/173449.944234 x =
551622.851745 y = 188769.787209
D3/3: cross = 1 seg1/dist1 = 1/266055.291692 seg2/dist2 = 0/0.000000 x =
405511.416010 y = 95301.442290
D3/3: cross 0 deleted (first/last point)
D3/3: cross 1 deleted (first/last point)
D3/3: alive crosses:
D3/3: naxlines = 0 nbxlines = 0
D3/3: j = 5 bline = 9
D3/3: Vect_read_line(): line = 9
D3/3: V2_read_line_nat(): line = 9
D3/3: Vect__Read_line_nat: offset = 482
D3/3: type = 4, do_cats = 0 dead = 0
D3/3: n_points = 3
D3/3: off = 535
D3/3: lines 5 and 9 touching by end nodes only -> no intersection
D3/3: nlines = 4
D3/3: aline = 6
D3/3: Vect_read_line(): line = 6
D3/3: V2_read_line_nat(): line = 6
D3/3: Vect__Read_line_nat: offset = 291
D3/3: type = 4, do_cats = 0 dead = 0
D3/3: n_points = 5
D3/3: off = 376
D3/3: touch1: n = 1 s = 1 e = 1 w = 1
D3/3: touch2: n = 1 s = 1 e = 1 w = 0
D3/3: Vect_select_lines_by_box()
D3/3: Box(N,S,E,W,T,B): 2.304216e+05, 2.259615e+04, 8.107041e+05,
3.475503e+05, 0.000000e+00, 0.000000e+00
D3/3: dig_select_lines_with_box()
D3/3: 7 lines selected (all types)
D3/3: 6 lines of requested type
D3/3: 6 lines selected by box
D3/3: j = 0 bline = 7
D3/3: Vect_read_line(): line = 7
D3/3: V2_read_line_nat(): line = 7
D3/3: Vect__Read_line_nat: offset = 376
D3/3: type = 4, do_cats = 0 dead = 0
D3/3: n_points = 3
D3/3: off = 429
D2/3: Vect_segment_intersection(): d = 11342745774.668097, d1 = 0.000000,
d2 = 11342745774.668097
D2/3: -> not parallel/collinear: d1 = 0.000000, d2 = 11342745774.668097
D2/3: -> intersection 551622.851745, 188769.787209
D2/3: -> 0 x 1: intersection type = 1
D3/3: in 551622.851745, 188769.787209
D2/3: n_cross = 1
D2/3: Clean and create array for line A
D3/3: cross = 0 seg1/dist1 = 0/0.000000 seg2/dist2 = 1/149966.456340 x =
551622.851745 y = 188769.787209
D3/3: cross 0 deleted (first/last point)
D3/3: alive crosses:
D2/3: Clean and create array for line B
D3/3: cross = 0 seg1/dist1 = 1/149966.456340 seg2/dist2 = 0/0.000000 x =
551622.851745 y = 188769.787209
D3/3: cross 0 deleted (first/last point)
D3/3: alive crosses:
D3/3: naxlines = 0 nbxlines = 0
D3/3: j = 4 bline = 8
D3/3: Vect_read_line(): line = 8
D3/3: V2_read_line_nat(): line = 8
D3/3: Vect__Read_line_nat: offset = 429
D3/3: type = 4, do_cats = 0 dead = 0
D3/3: n_points = 3
D3/3: off = 482
D2/3: Vect_segment_intersection(): d = 12793518020.367088, d1 = 0.000000,
d2 = 0.000000
D2/3: -> not parallel/collinear: d1 = 0.000000, d2 = 0.000000
D2/3: -> intersection 551622.851745, 188769.787209
D2/3: -> 0 x 0: intersection type = 1
D3/3: in 551622.851745, 188769.787209
D2/3: Vect_segment_intersection(): d = -1235536961.876049, d1 =
-12793518020.367088, d2 = -21610915633.841331
D2/3: -> not parallel/collinear: d1 = -12793518020.367088, d2 =
-21610915633.841331
D2/3: -> no intersection
D2/3: Vect_segment_intersection(): d = -49731304514.643005, d1 =
-41502689191.546005, d2 = -70106683186.608276
D2/3: -> not parallel/collinear: d1 = -41502689191.546005, d2 =
-70106683186.608276
D2/3: -> no intersection
D2/3: n_cross = 1
D2/3: Clean and create array for line A
D3/3: cross = 0 seg1/dist1 = 0/0.000000 seg2/dist2 = 0/0.000000 x =
551622.851745 y = 188769.787209
D3/3: cross 0 deleted (first/last point)
D3/3: alive crosses:
D2/3: Clean and create array for line B
D3/3: cross = 0 seg1/dist1 = 0/0.000000 seg2/dist2 = 0/0.000000 x =
551622.851745 y = 188769.787209
D3/3: cross 0 deleted (first/last point)
D3/3: alive crosses:
D3/3: naxlines = 0 nbxlines = 0
D3/3: j = 5 bline = 9
D3/3: Vect_read_line(): line = 9
D3/3: V2_read_line_nat(): line = 9
D3/3: Vect__Read_line_nat: offset = 482
D3/3: type = 4, do_cats = 0 dead = 0
D3/3: n_points = 3
D3/3: off = 535
D2/3: n_cross = 0
D3/3: naxlines = 0 nbxlines = 0
D3/3: nlines = 4
}}}

At this point the iclass GUI is closed.

--
Ticket URL: <https://trac.osgeo.org/grass/ticket/2439#comment:6&gt;
GRASS GIS <http://grass.osgeo.org>

8

#2439: g.gui.iclass crashes
---------------------------------------------------+------------------------
Reporter: madi | Owner: grass-dev@…
     Type: defect | Status: new
Priority: normal | Milestone: 7.1.0
Component: wxGUI | Version: svn-trunk
Keywords: g.gui.iclass, classification, imagery | Platform: Linux
      Cpu: x86-64 |
---------------------------------------------------+------------------------

Comment(by mlennert):

I don't know if it's connected, but yesterday I was working with a group
of students who were supposed to digitize using a fairly recent 7.0
release branch version (not with g.gui.iclass, but with the wx digitizer
in the map display and many had problems with GUI crashes. I was too busy
to try to debug these, though, and haven't had the time to go back to
those machines, yet, so I can't offer more debugging info. Just thought
that maybe the problem is not in g.gui.iclass, but in the general
digitizing routines.

Moritz

--
Ticket URL: <https://trac.osgeo.org/grass/ticket/2439#comment:7&gt;
GRASS GIS <http://grass.osgeo.org>

9

#2439: g.gui.iclass crashes
---------------------------------------------------+------------------------
Reporter: madi | Owner: grass-dev@…
     Type: defect | Status: new
Priority: normal | Milestone: 7.1.0
Component: wxGUI | Version: svn-trunk
Keywords: g.gui.iclass, classification, imagery | Platform: Linux
      Cpu: x86-64 |
---------------------------------------------------+------------------------

Comment(by mlennert):

Replying to [comment:6 neteler]:
> I just tried on Fedora 20, G7.trunk, r62247, confirmed.
>
> The issue occurs when snapping is applied to close a boundary. To
replicate:
>
> {{{
> # NC location
> g.region rast=elev_state_500m -p
> g.gisenv set=DEBUG=3
> g.gui.iclass
> }}}
>
> * load raster map 'elev_state_500m@PERMANENT' into upper display
> * create a class (default settings are fine)
> * digitize some new area with the left-most digitizer tool
> * do several, let enough space to a have large snapping area
> * let one cut another (overlap)
> * ZAP

I can confirm this in g.gui.vdigit as well, even without letting one area
cut another. It is enough that the newly digitized area is within snapping
distance of the other. This is easiest to see when you use a fairly high
distance (working on the landsat images in the NC example data I used
1000m). The debug messages are similar to Markus'.

As g.gui.vdigit is a python script I don't know how to debug this with gdb
(I get "No executable file specified"). Any hints ?

Moritz

--
Ticket URL: <https://trac.osgeo.org/grass/ticket/2439#comment:8&gt;
GRASS GIS <http://grass.osgeo.org>

10

#2439: g.gui.iclass crashes
---------------------------------------------------+------------------------
Reporter: madi | Owner: grass-dev@…
     Type: defect | Status: new
Priority: blocker | Milestone: 7.1.0
Component: wxGUI | Version: svn-trunk
Keywords: g.gui.iclass, classification, imagery | Platform: Linux
      Cpu: x86-64 |
---------------------------------------------------+------------------------
Changes (by mlennert):

  * priority: normal => blocker

Comment:

Redinfind priority as blocker as I think that digitizing is a fundamental
functionality and we should not release a new version with such issues.

--
Ticket URL: <https://trac.osgeo.org/grass/ticket/2439#comment:9&gt;
GRASS GIS <http://grass.osgeo.org>

11

#2439: g.gui.iclass crashes
---------------------------------------------------+------------------------
Reporter: madi | Owner: grass-dev@…
     Type: defect | Status: new
Priority: blocker | Milestone: 7.1.0
Component: wxGUI | Version: svn-trunk
Keywords: g.gui.iclass, classification, imagery | Platform: Linux
      Cpu: x86-64 |
---------------------------------------------------+------------------------

Comment(by annakrat):

See possible duplicate #2476.

--
Ticket URL: <https://trac.osgeo.org/grass/ticket/2439#comment:10&gt;
GRASS GIS <http://grass.osgeo.org>

12

#2439: g.gui.iclass crashes
---------------------------------------------------+------------------------
Reporter: madi | Owner: grass-dev@…
     Type: defect | Status: new
Priority: blocker | Milestone: 7.1.0
Component: wxGUI | Version: svn-trunk
Keywords: g.gui.iclass, classification, imagery | Platform: Linux
      Cpu: x86-64 |
---------------------------------------------------+------------------------

Comment(by mmetz):

Replying to [comment:10 annakrat]:
> See possible duplicate #2476.

worksforme as of r63077. Please test.

--
Ticket URL: <http://trac.osgeo.org/grass/ticket/2439#comment:11&gt;
GRASS GIS <http://grass.osgeo.org>

13

#2439: g.gui.iclass crashes
---------------------------------------------------+------------------------
Reporter: madi | Owner: grass-dev@…
     Type: defect | Status: new
Priority: blocker | Milestone: 7.1.0
Component: wxGUI | Version: svn-trunk
Keywords: g.gui.iclass, classification, imagery | Platform: Linux
      Cpu: x86-64 |
---------------------------------------------------+------------------------

Comment(by mlennert):

Replying to [comment:11 mmetz]:
> Replying to [comment:10 annakrat]:
> > See possible duplicate #2476.
>
> worksforme as of r63077. Please test.

I cannot make the interface crash anymore.

Thanks a lot Markus !

Probably can do with some more serious, production-style testing, but
after a quick test it seems ok.

Moritz

--
Ticket URL: <http://trac.osgeo.org/grass/ticket/2439#comment:12&gt;
GRASS GIS <http://grass.osgeo.org>

14

#2439: g.gui.iclass crashes
---------------------------------------------------+------------------------
Reporter: madi | Owner: grass-dev@…
     Type: defect | Status: new
Priority: blocker | Milestone: 7.1.0
Component: wxGUI | Version: svn-trunk
Keywords: g.gui.iclass, classification, imagery | Platform: Linux
      Cpu: x86-64 |
---------------------------------------------------+------------------------

Comment(by madi):

Replying to [comment:11 mmetz]:
> Replying to [comment:10 annakrat]:
> > See possible duplicate #2476.
>
> worksforme as of r63077. Please test.

Thank you Markus. I'm still not able to run g.gui.iclass properly. I don't
know if it's related, but when I try to display the map it says that I
haven't specified the name of the maps. Let's see if I can attach a screen
shot

--
Ticket URL: <https://trac.osgeo.org/grass/ticket/2439#comment:13&gt;
GRASS GIS <http://grass.osgeo.org>

15

#2439: g.gui.iclass crashes
---------------------------------------------------+------------------------
Reporter: madi | Owner: grass-dev@…
     Type: defect | Status: new
Priority: blocker | Milestone: 7.1.0
Component: wxGUI | Version: svn-trunk
Keywords: g.gui.iclass, classification, imagery | Platform: Linux
      Cpu: x86-64 |
---------------------------------------------------+------------------------

Comment(by annakrat):

Replying to [comment:13 madi]:
> Replying to [comment:11 mmetz]:
> > Replying to [comment:10 annakrat]:
> > > See possible duplicate #2476.
> >
> > worksforme as of r63077. Please test.
>
> Thank you Markus. I'm still not able to run g.gui.iclass properly. I
don't know if it's related, but when I try to display the map it says that
I haven't specified the name of the maps. Let's see if I can attach a
screen shot

That's related to something different (#2454), please update and try
again, this should be solved.

--
Ticket URL: <https://trac.osgeo.org/grass/ticket/2439#comment:14&gt;
GRASS GIS <http://grass.osgeo.org>

16

#2439: g.gui.iclass crashes
---------------------------------------------------+------------------------
Reporter: madi | Owner: grass-dev@…
     Type: defect | Status: new
Priority: blocker | Milestone: 7.1.0
Component: wxGUI | Version: svn-trunk
Keywords: g.gui.iclass, classification, imagery | Platform: Linux
      Cpu: x86-64 |
---------------------------------------------------+------------------------

Comment(by madi):

Replying to [comment:14 annakrat]:
> Replying to [comment:13 madi]:
> > Replying to [comment:11 mmetz]:
> > > Replying to [comment:10 annakrat]:
> > > > See possible duplicate #2476.
> > >
> > > worksforme as of r63077. Please test.
> >
> > Thank you Markus. I'm still not able to run g.gui.iclass properly. I
don't know if it's related, but when I try to display the map it says that
I haven't specified the name of the maps. Let's see if I can attach a
screen shot
>
> That's related to something different (#2454), please update and try
again, this should be solved.

Thank you Anna, yes indeed now this works. The only strange behaviour that
still remains for me is that digitizing polygons, the dotted line (as far
as I remember it used to be blue) that serves as a guide has disappeared.
So now while i digitize a polygon, when I confirm a segment it turns
green, but when i go to the next segment there is no guiding line until i
confirm it green.

Thanks,
madi

--
Ticket URL: <https://trac.osgeo.org/grass/ticket/2439#comment:15&gt;
GRASS GIS <http://grass.osgeo.org>

17

#2439: g.gui.iclass crashes
---------------------------------------------------+------------------------
Reporter: madi | Owner: grass-dev@…
     Type: defect | Status: new
Priority: blocker | Milestone: 7.1.0
Component: wxGUI | Version: svn-trunk
Keywords: g.gui.iclass, classification, imagery | Platform: Linux
      Cpu: x86-64 |
---------------------------------------------------+------------------------

Comment(by mlennert):

Replying to [comment:15 madi]:
> Replying to [comment:14 annakrat]:
> > Replying to [comment:13 madi]:
> > > Replying to [comment:11 mmetz]:
> > > > Replying to [comment:10 annakrat]:
> > > > > See possible duplicate #2476.
> > > >
> > > > worksforme as of r63077. Please test.
> > >
> > > Thank you Markus. I'm still not able to run g.gui.iclass properly. I
don't know if it's related, but when I try to display the map it says that
I haven't specified the name of the maps. Let's see if I can attach a
screen shot
> >
> > That's related to something different (#2454), please update and try
again, this should be solved.
>
> Thank you Anna, yes indeed now this works. The only strange behaviour
that still remains for me is that digitizing polygons, the dotted line (as
far as I remember it used to be blue) that serves as a guide has
disappeared. So now while i digitize a polygon, when I confirm a segment
it turns green, but when i go to the next segment there is no guiding line
until i confirm it green.

I can confirm this, but for me (in the general digitizer called directly
in the Map Display), but the problem only appears after opening the
settings menu. When I close the digitizer and reopen it, I then see the
green dotted line again.

Moritz

--
Ticket URL: <https://trac.osgeo.org/grass/ticket/2439#comment:16&gt;
GRASS GIS <http://grass.osgeo.org>

18

#2439: g.gui.iclass crashes
---------------------------------------------------+------------------------
Reporter: madi | Owner: grass-dev@…
     Type: defect | Status: new
Priority: blocker | Milestone: 7.1.0
Component: wxGUI | Version: svn-trunk
Keywords: g.gui.iclass, classification, imagery | Platform: Linux
      Cpu: x86-64 |
---------------------------------------------------+------------------------

Comment(by mlennert):

Replying to [comment:16 mlennert]:
> Replying to [comment:15 madi]:
> > Replying to [comment:14 annakrat]:
> > > Replying to [comment:13 madi]:
> > > > Replying to [comment:11 mmetz]:
> > > > > Replying to [comment:10 annakrat]:
> > > > > > See possible duplicate #2476.
> > > > >
> > > > > worksforme as of r63077. Please test.
> > > >
> > > > Thank you Markus. I'm still not able to run g.gui.iclass properly.
I don't know if it's related, but when I try to display the map it says
that I haven't specified the name of the maps. Let's see if I can attach a
screen shot
> > >
> > > That's related to something different (#2454), please update and try
again, this should be solved.
> >
> > Thank you Anna, yes indeed now this works. The only strange behaviour
that still remains for me is that digitizing polygons, the dotted line (as
far as I remember it used to be blue) that serves as a guide has
disappeared. So now while i digitize a polygon, when I confirm a segment
it turns green, but when i go to the next segment there is no guiding line
until i confirm it green.
>
>
> I can confirm this, but for me (in the general digitizer called directly
in the Map Display), but the problem only appears after opening the
settings menu. When I close the digitizer and reopen it, I then see the
green dotted line again.

More info: I can also make the line appear again by simply switching
drawing tools..

--
Ticket URL: <https://trac.osgeo.org/grass/ticket/2439#comment:17&gt;
GRASS GIS <http://grass.osgeo.org>

19

#2439: g.gui.iclass crashes
---------------------------------------------------+------------------------
Reporter: madi | Owner: grass-dev@…
     Type: defect | Status: new
Priority: blocker | Milestone: 7.1.0
Component: wxGUI | Version: svn-trunk
Keywords: g.gui.iclass, classification, imagery | Platform: Linux
      Cpu: x86-64 |
---------------------------------------------------+------------------------

Comment(by madi):

Replying to [comment:17 mlennert]:
>
>
> More info: I can also make the line appear again by simply switching
drawing tools..

This does not work for me. Tried drawing polygons and lines both from
g.gui.iclass and from vdigit. Thanks.

--
Ticket URL: <https://trac.osgeo.org/grass/ticket/2439#comment:18&gt;
GRASS GIS <http://grass.osgeo.org>

20

#2439: g.gui.iclass crashes
---------------------------------------------------+------------------------
Reporter: madi | Owner: grass-dev@…
     Type: defect | Status: new
Priority: blocker | Milestone: 7.1.0
Component: wxGUI | Version: svn-trunk
Keywords: g.gui.iclass, classification, imagery | Platform: Linux
      Cpu: x86-64 |
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Comment(by annakrat):

Replying to [comment:18 madi]:
> Replying to [comment:17 mlennert]:
> >
> >
> > More info: I can also make the line appear again by simply switching
drawing tools..
>
> This does not work for me. Tried drawing polygons and lines both from
g.gui.iclass and from vdigit. Thanks.

I don't have this problem, but I am not surprised, because drawing these
intermediate lines must be rewritten, I am having problems with that in
the new raster digitizer. I would suggest to close this ticket (it's a
blocker) and start a new one.

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Ticket URL: <https://trac.osgeo.org/grass/ticket/2439#comment:19&gt;
GRASS GIS <http://grass.osgeo.org>