Bug report #4709

If a raster band is set to "no set", then the raster become transparent

Added by Giovanni Manghi over 7 years ago. Updated almost 7 years ago.

Status:Closed
Priority:Normal
Assignee:-
Category:Rasters
Affected QGIS version:master Regression?:No
Operating System: Easy fix?:No
Pull Request or Patch supplied:No Resolution:fixed
Crashes QGIS or corrupts data:No Copied to github as #:14593

Description

in a multi-band raster. Tested on qgis-mster.

History

#1 Updated by Alexander Bruy over 7 years ago

Looked at several old QGIS versions (1.5, 1.3 and 1.1) and all of them have same behavior. Don't know how 3-band raster can be displayed when only 2 bands supplied. Maybe, draw one band twice, e.g. RED = Band 1, GREEN = Band 2 and BLUE = Band 2?

#2 Updated by Giovanni Manghi over 7 years ago

Then I would say to don't allow unselect a band. Your solution seems good to me.

#3 Updated by Giuseppe Sucameli over 7 years ago

  • Priority changed from 6 to Normal

Giovanni Manghi wrote:

Then I would say to don't allow unselect a band

Why should anybody unset a band? Any reason?

#4 Updated by Giovanni Manghi over 7 years ago

Why should anybody unset a band? Any reason?

maybe it does not make sense, but if it is possible to do that (unselecting a band) then someone will do, and if the result is "wrong" or can puzzle the user, then better not allow it at all. Just my 2c.

#5 Updated by Paolo Cavallini over 7 years ago

  • Target version changed from Version 1.7.4 to Version 1.8.0

#6 Updated by Paolo Cavallini about 7 years ago

  • Target version changed from Version 1.8.0 to Version 2.0.0

#7 Updated by Giovanni Manghi almost 7 years ago

  • Resolution set to fixed
  • Status changed from Open to Closed

It seems fixed in master.

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