Bug report #22036

Zoom in/out and autorefreshing of raster doesn’t work after georeferencing

Added by Lukasz Olszyna 6 months ago. Updated 6 months ago.

Status:Open
Priority:High
Assignee:-
Category:Map Canvas
Affected QGIS version:3.4.4 Regression?:Yes
Operating System: Easy fix?:No
Pull Request or Patch supplied:No Resolution:
Crashes QGIS or corrupts data:No Copied to github as #:29850

Description

Steps:
1.Load SHP files
2. Open the georeferencer and load the map (JPG file) to be georeferenced
3. Choose the transformation and output settings
4. Add points, press ‘Start georeferencing’ georeferenced map has been added as raster (TIF file) to map canvas
5. Untick ‘Load in QGIS when done’ and add /remove/move points in georeferencer window, press ‘start georeferencing’ again

QGIS 2.18.3 result: Georeferenced map refreshed automatically in project window after zoom in/out.

QGIS 3.4.4 result: Georeferenced map is not refreshed after zoom in/out, georeferenced raster is displayed only in one zoom level, in other zoom levels is not displaying properly (black or color stripes area):
!QGIS error.jpg!
It is possible to work around this issue by delate old raster from map canvas and load new raster, but it was not necessary in previous QGis version.

QGIS error.jpg (428 KB) Lukasz Olszyna, 2019-05-09 02:23 PM

History

#1 Updated by Giovanni Manghi 6 months ago

  • Priority changed from Normal to High
  • Category changed from Unknown to Map Canvas

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