Bug report #17884

CRS differences

Added by Bogdan Rosca about 2 years ago. Updated 11 months ago.

Status:Feedback
Priority:Normal
Assignee:-
Category:Projection Support
Affected QGIS version:master Regression?:No
Operating System:Windows Easy fix?:Yes
Pull Request or Patch supplied:No Resolution:
Crashes QGIS or corrupts data:No Copied to github as #:25779

Description

Today I noticed a diffecence in CRS parameters for Romania EPSG: 3844 between QGIS stable 2.18 and development version (2.99.0-269). The differences are in the transformation parameters:
- the correct ones from QGIS 2.18

+proj=sterea +lat_0=46 +lon_0=25 +k=0.99975 +x_0=500000 +y_0=500000 +ellps=krass +towgs84=2.329,-147.042,-92.08,0.309,-0.325,-0.497,5.69 +units=m +no_defs

- and the old ones used in development version, specific for Poland
+proj=sterea +lat_0=46 +lon_0=25 +k=0.99975 +x_0=500000 +y_0=500000 +ellps=krass +towgs84=33.4,-146.6,-76.3,-0.359,-0.053,0.844,-0.84 +units=m +no_defs

This difference can cause a 200m shifting in case of reprojection.

History

#1 Updated by Giovanni Manghi 11 months ago

  • Status changed from Open to Feedback

Please check if this issue is still valid on QGIS 3.4.5 or 3.6.

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