Bug report #16537

Images georeferenced with worldfile have a black frame when rotated

Added by Olivier Dalang over 4 years ago. Updated over 4 years ago.

Status:Closed
Priority:Normal
Assignee:-
Category:Rasters
Affected QGIS version:2.18.7 Regression?:No
Operating System: Easy fix?:No
Pull Request or Patch supplied:No Resolution:fixed/implemented
Crashes QGIS or corrupts data:No Copied to github as #:24443

Description

Hi !

Georeferencing images with worldfiles is great, as it's very light and doesn't require to rewrite the raster.

Still, currently, rasters displayed this way in QGIS display a black background when rotated. One can overcome this by adding a 0 as transparent no-data value, but then every black pixel in the image becomes transparent (not only the background).

The expected behaviour is to have the image displayed with no background at all.

History

#1 Updated by Giovanni Manghi over 4 years ago

  • Status changed from Open to Feedback

Caan you please attach a sample + wld file? thanks!

#2 Updated by Nyall Dawson over 4 years ago

If I recall correctly this is fixed in 3.0. can you test a nightly and confirm?

#3 Updated by Giovanni Manghi over 4 years ago

  • Resolution set to fixed/implemented
  • Status changed from Feedback to Closed

Closing for lack of feedback (and as under the assumption that is fixed in master).

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