Bug report #21008
Mesh layer does not work properly with OTF reprojection
| Status: | Open | ||
|---|---|---|---|
| Priority: | Normal | ||
| Assignee: |  Peter Petrik | ||
| Category: | Data Provider/MDAL | ||
| Affected QGIS version: | 3.5(master) | Regression?: | No |
| Operating System: | Easy fix?: | No | |
| Pull Request or Patch supplied: | No | Resolution: | |
| Crashes QGIS or corrupts data: | No | Copied to github as #: | 28827 |
Description
I have the following datasets:
- Mesh layer (global coverage)
- Countries (shapefile)
It works well with the canvas projection set to the mesh projection. But with canvas set to 3857, the mesh shrinks to a small area and the quantity disappears.
History
Updated by 
#2
Updated by Peter Petrik almost 6 years ago
right now the triangular mesh assumes that all vertices from original CRS can be transformed to map CRS. if this is not the case, the QGIS renderer is confused since it has some vertices in map projection and some in original projection. To fix it , we would need to overcome the problem that the triangular mesh can have more/less vertices than the original mesh and adjust the renderers accordingly
#3
Updated by Giovanni Manghi over 5 years ago
- Priority changed from High to Normal