Opened 14 years ago

Closed 14 years ago

#2428 closed bug (worksforme)

(windows) Identify Features tool returns incorrect band values

Reported by: dr Owned by: ersts
Priority: major: does not work as expected Milestone: Version 1.5.0
Component: Rasters Version: Trunk
Keywords: Cc: dr, gislab, alexbruy
Must Fix for Release: No Platform: Windows
Platform Version: Awaiting user input: no

Description

  1. Open any RGB raster and zoom it to high scale;
  2. Click on any pixel and identify band values;
  3. Set color from previous step as transparent;
  4. At result - another pixel becomes transparent.

For more detail see video: http://www.screencast.com/users/gislab/folders/Jing/media/7a50cf47-c461-4236-b45d-1196fc5f4dd5

Change History (12)

comment:1 by lutra, 14 years ago

Hi,

I cannot replicate it here with trunk under linux. Can you post please a sample of the data you are using?

comment:2 by dr, 14 years ago

This bug I've reproduced on different rasters. For example http://gis-lab.info/share/DR/l5_19880625.img

comment:3 by lutra, 14 years ago

Just tested the raster you linked and it works fine under linux and qgis trunk. I'll check also under xp and report back.

comment:4 by lutra, 14 years ago

Owner: changed from nobody to ersts
Platform: AllWindows

Ok, is confirmed that the issue happens under windows but not linux. Any Mac to test it?

comment:5 by dr, 14 years ago

Thanks for testing it. Sorry I don't have possibility to test bug under Mac OS.

comment:6 by lutra, 14 years ago

Hi,

I think that the title of this ticket does not really match the described issue. What about changing it? maybe something like "(windows) setting transparent colours applies to wrong pixels"?

cheers

comment:7 by dr, 14 years ago

I'm not sure that issue is connected with transparency. Seems that it is Identify Feature tool issue.

comment:8 by dr, 14 years ago

If you try to click in different place of pixel you will get different values of bands.

in reply to:  8 comment:9 by lutra, 14 years ago

Replying to dr:

If you try to click in different place of pixel you will get different values of bands.

ok, I didn't noticed it.

comment:10 by kyngchaos, 14 years ago

Works on OSX.

comment:11 by lutra, 14 years ago

Summary: Identify Features tool returns incorrect band values(windows) Identify Features tool returns incorrect band values

comment:12 by dr, 14 years ago

Resolution: worksforme
Status: newclosed
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