Bug report #2493
ftools: simplify geometries tool crashes/freezes qgis (or throws a pyhton error)
Status: | Closed | ||
---|---|---|---|
Priority: | Low | ||
Assignee: | cfarmer - | ||
Category: | Python plugins | ||
Affected QGIS version: | Regression?: | No | |
Operating System: | All | Easy fix?: | No |
Pull Request or Patch supplied: | Resolution: | fixed | |
Crashes QGIS or corrupts data: | Copied to github as #: | 12553 |
Description
The tool seems to not like/not work with multipart geometries, so a control should be added. A singlepart version of the problematic vector (attached) stills crashes qgis when using the tool.
Maybe it is a problem with the geometry of the vector I tested, nevertheless crash should be avoided.
With the attached vector "evora_rios" with qgis trunk under Ubuntu 9.10, qgis crashes with the following terminal message.
Warning: QObject::setParent: Cannot set parent, new parent is in a different thread Warning: QPixmap: It is not safe to use pixmaps outside the GUI thread Warning: QPixmap: It is not safe to use pixmaps outside the GUI thread Warning: QPixmap: It is not safe to use pixmaps outside the GUI thread Warning: QPixmap: It is not safe to use pixmaps outside the GUI thread Warning: QPixmap: It is not safe to use pixmaps outside the GUI thread Warning: QPixmap: It is not safe to use pixmaps outside the GUI thread Warning: QPixmap: It is not safe to use pixmaps outside the GUI thread Warning: QPixmap: It is not safe to use pixmaps outside the GUI thread Warning: QPixmap: It is not safe to use pixmaps outside the GUI thread Warning: QPixmap: It is not safe to use pixmaps outside the GUI thread Warning: QPixmap: It is not safe to use pixmaps outside the GUI thread Warning: QPixmap: It is not safe to use pixmaps outside the GUI thread Warning: QPixmap: It is not safe to use pixmaps outside the GUI thread Warning: QPixmap: It is not safe to use pixmaps outside the GUI thread Warning: QPixmap: It is not safe to use pixmaps outside the GUI thread Warning: QPixmap: It is not safe to use pixmaps outside the GUI thread Warning: QPixmap: It is not safe to use pixmaps outside the GUI thread <unknown>: Fatal IO error 11 (Resource temporarily unavailable) on X server :0.0.
I tried also to obtain a singlepart version ("evora_rios_singlepart", also attached here) of the same vector (using the multipart to singleparts tool in ftools) and the results are no better as qgis freezes or crashes (same message as above)***.
Under windows xp (qgis trunk/osgeo4w) I get (with the same vectors) python errors instead of crashes and freezes. I attach the error message (is the same for the multipart and singlepart version of the vector) as image as is possible to ctrç-c the error message but then ctrl-v does not work.
Under Ubuntu 9.04 (and qgis 1.4 from the ubuntugis repository) the crash message is slightly different from the one thrown under 9.10
Warning: QPixmap: It is not safe to use pixmaps outside the GUI thread Warning: QPixmap: It is not safe to use pixmaps outside the GUI thread Warning: QPixmap: It is not safe to use pixmaps outside the GUI thread Warning: QPixmap: It is not safe to use pixmaps outside the GUI thread Warning: QPixmap: It is not safe to use pixmaps outside the GUI thread Warning: QPixmap: It is not safe to use pixmaps outside the GUI thread Warning: QPixmap: It is not safe to use pixmaps outside the GUI thread Warning: QPixmap: It is not safe to use pixmaps outside the GUI thread Warning: QPixmap: It is not safe to use pixmaps outside the GUI thread Warning: QPixmap: It is not safe to use pixmaps outside the GUI thread Warning: QPixmap: It is not safe to use pixmaps outside the GUI thread Warning: QPixmap: It is not safe to use pixmaps outside the GUI thread Warning: QPixmap: It is not safe to use pixmaps outside the GUI thread Warning: QPixmap: It is not safe to use pixmaps outside the GUI thread Warning: QPixmap: It is not safe to use pixmaps outside the GUI thread Warning: QPixmap: It is not safe to use pixmaps outside the GUI thread Warning: QPixmap: It is not safe to use pixmaps outside the GUI thread Warning: X Error: [[BadImplementation]] (server does not implement operation) 17 Major opcode: 20 (X_GetProperty) Resource id: 0x21 qgis.bin: ../../src/xcb_io.c:242: process_responses: Assertion @(((long) (dpy->last_request_read) - (long) (dpy->request)) <= 0)' failed. Aborted
***
To notice that also the new plugin "dpsimplify" crashes with the multipart version of the attached vector, but with the singlepart version it works ok.
Associated revisions
Simplify geometry tool now works properly for multipart features. Note: tool now uses builtin simplify function from QgsGeometry (i.e. should be noticeably faster). Fixes #2493 and #2499.
git-svn-id: http://svn.osgeo.org/qgis/trunk/qgis@13033 c8812cc2-4d05-0410-92ff-de0c093fc19c
Simplify geometry tool now works properly for multipart features. Note: tool now uses builtin simplify function from QgsGeometry (i.e. should be noticeably faster). Fixes #2493 and #2499.
git-svn-id: http://svn.osgeo.org/qgis/trunk@13033 c8812cc2-4d05-0410-92ff-de0c093fc19c
History
#1 Updated by cfarmer - almost 15 years ago
- Resolution set to fixed
- Status changed from Open to Closed
Should be fixed in 1f0d1afa (SVN r13034). Now using built-in simplify function from QgsGeometry? (added at the last hackfest). Tested on sample shapefile attached to this ticket, works nicely on both multipart and singlepart versions. Note, this bug is likely a duplicate of #2499 (or vice versa :-))
-Carson