Bug report #718

QGIS crashes when I try to query large contour polygon ShapeFiles

Added by Redmine Admin about 17 years ago. Updated almost 15 years ago.

Assignee:nobody -
Affected QGIS version: Regression?:No
Operating System:Windows Easy fix?:No
Pull Request or Patch supplied: Resolution:fixed
Crashes QGIS or corrupts data: Copied to github as #:10777


QGIS doesn't handle this dataset very well. It seems to have difficulty classifying the polygons by the attribute MAXHEIGHT and as soon as I try querying a polygon it crashes every time. I have tried doing this with other software (in case there might be a problem with the data) and it works fine with the dataset. I am using QGIS 0.8 and 0.8.1 on a WIN XP SP2 system.

I will attempt to attach a ZIP file (of about 14Mb) to this ticket for you to use in duplicating this problem. I have several other datasets like this one if you want to try those as well.

Bob Bruce


#1 Updated by Marco Hugentobler about 17 years ago

I suppose that those shapefiles are 2.5D types (with a z-value for each vertex). Version 0.9 is supposed to handle those correctly. 0.8.1 is able to display them, but identify and vertex editing does not work. We should probably display a warning for 0.8.1 in such cases and prevent a crash.


#2 Updated by Redmine Admin about 17 years ago

Marco, you are right, these are 3D SHAPE files. I have uploaded the files that I was using to my webserver, you can access them at: http://www.hwps.ca/porc_west_cont_Hypsography_Polygons.zip this server is a bit slow, I tested the access from work and it took about 4 minutes to download the file.


#3 Updated by leolami - about 16 years ago

can you test it in 0.9.2 vers?
If all is right can you close it?

#4 Updated by leolami - about 16 years ago

  • Resolution set to fixed
  • Status changed from Open to Closed

#5 Updated by Anonymous almost 15 years ago

Milestone Version 0.9.2 deleted

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