Bug report #7074

lowest non-zero value in a single band geotiff will not display

Added by Barry Snowdon almost 12 years ago. Updated over 10 years ago.

Status:Closed
Priority:Normal
Assignee:-
Category:Rasters
Affected QGIS version:1.8.0 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 #:16158

Description

Hi,

I'm using Lisboa and do alot of map algebra with single band geotifs. If I create a geotiff with values ranging from 1 to 10, 5 to 25, 3 to 27 for example, QGIS will always display the lowest value (the 1,5 or 3 in my examples) as white or transparent. Yet is I "identify" that region of the map Lisboa knows about the value. This is regardless of whether I set the layer properties to grayscale, pseudocolor, freak-out or colormap. I'm using zero as the null value.

Any help/guidance would be greatly appreciated.

Barry.

History

#1 Updated by Giovanni Manghi almost 12 years ago

  • Affected QGIS version changed from master to 1.8.0
  • Status changed from Open to Feedback
  • Category set to Rasters

Have you tested qgis master? a lot of work have been done there on rasters.

#2 Updated by Giovanni Manghi over 10 years ago

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

it definitely works as expected on recent qgis releases.

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