Bug report #3694
WMS quality worse on QGIS server compared to QGIS desktop
| Status: | Closed | ||
|---|---|---|---|
| Priority: | Low | ||
| Assignee: | - | ||
| Category: | Web Services clients/WMS | ||
| Affected QGIS version: | Regression?: | No | |
| Operating System: | All | Easy fix?: | No |
| Pull Request or Patch supplied: | No | Resolution: | worksforme |
| Crashes QGIS or corrupts data: | Copied to github as #: | 13753 |
Description
Since a couple days/weeks it seems like the display quality of WMS, when used through QGIS server got substantially worse.
It could be either a dpi, or a resampling issue, or an unnecessary reprojection which results in lower quality.
Here is a test URL:
Original UMN Mapserver URL with original quality:
http://gis.uster.ch/cgi/mapserv?map=/home/www/mapserverdata/uster_uep.map
WMS through QGIS server:
http://gis.uster.ch/cgi/qgis_mapserv.fcgi?map=/home/www/projekte/orthofotos_und_uep/orthofotos_und_uep.qgs
Layer: Übersichtsplan 2009
History
#1
Updated by Andreas Neumann over 13 years ago
Here is a Screenshot: on the left is the better quality of QGIS desktop, on the right the lower quality of QGIS server. Both use the same WMS from UMN mapserver as a source.
http://gis.uster.ch/bugreports/qgis/qgis_desktop_vs_server.png
#2
Updated by Redmine Admin over 13 years ago
The DPI bug was fixed in trunk 72ee7e6d (SVN r15700). Can you verify if this ticket was also fixed?
#3
Updated by Jürgen Fischer about 13 years ago
- Assignee deleted (
Redmine Admin) - Category changed from Rasters to Web Services clients/WMS
- Status changed from Open to Feedback
- Pull Request or Patch supplied set to No
#4
Updated by Andreas Neumann about 13 years ago
- Resolution set to worksforme
I think this was fixed meanwhile. I don't see the problem anymore.
Andreas
#5
Updated by Giovanni Manghi about 13 years ago
- Status changed from Feedback to Closed