Bug report #5831
Qgis very slow on selecting/identifing polygons with lots of vertices
| Status: | Closed | ||
|---|---|---|---|
| Priority: | High | ||
| Assignee: | - | ||
| Category: | - | ||
| Affected QGIS version: | 1.8.0 | Regression?: | No |
| Operating System: | Easy fix?: | No | |
| Pull Request or Patch supplied: | No | Resolution: | duplicate |
| Crashes QGIS or corrupts data: | No | Copied to github as #: | 15306 |
Description
Hi all
Qgis version 1.8 and master (480c860) on my desktop (xp 32bit) get very slow when a polygon with lots of vertices is selected or identified (with the "i" key) (It was the same with 1.7.4, I just upgraded).
To select/identify a complex polygon (shp file)it takes a lot of time and after the selection Qgis slows down a lot. No other action can be done before unselecting it, otherwise qgis hangs and I have to force quit it.
If the polygon with lots of vertices is unselected then qgis resumes its speed.
It happens only with complex polygons, because if I select/ident. a simpler polygon coming from the same shp file qgis works perfect.
I saw that a similar problem was with the edit vertices funcion and it was solved, I don't know if this issue is known.
Thanks for your work
Pietro
History
#1
Updated by Giovanni Manghi over 12 years ago
- Resolution set to duplicate
- Status changed from Open to Closed
duplicate of #4819