Bug report #15772
Copy/Paste style should not override band number
| Status: | Closed | ||
|---|---|---|---|
| Priority: | Normal | ||
| Assignee: | - | ||
| Category: | Unknown | ||
| Affected QGIS version: | 2.18.0 | Regression?: | No |
| Operating System: | Easy fix?: | No | |
| Pull Request or Patch supplied: | No | Resolution: | end of life |
| Crashes QGIS or corrupts data: | No | Copied to github as #: | 23694 |
Description
With a multiband raster, rendered using a singleband pseudocolor type, copy/paste style does not work between bands, as the band number is copied as part of the style. A singleband pseudocolor type implies that the style is independent of the raster band number. This type should be able to be copied to any raster band number. Furthermore, a band number is much more of a data source than it is a style, as different bands have different data.
Steps to recreate or demonstrate the issue in QGIS 2.18 via OSGeo4W:- Add a multiband raster, and go to Properties, Style
- Change Render type to Singleband pseudocolor, set Band to Band 1
- Change style, e.g. Color to Blues, and click OK
- Add a second multiband raster, and go to Properties, Style
- Change Render type to Singleband pseudocolor, set Band to Band 2
- Change style, e.g. Color to Oranges, and click OK
- Copy style from the first raster, and paste style to the second raster
- The band number has changed from Band 2 to Band 1.
- An attempt to change the Band number back to 2 will undo the style copy, and the previous style (Oranges) will be retained.
This effectively makes it impossible to copy a singleband pseudocolor type between different bands, since the band number is overwritten, and the style is lost when band number is changed.
History
#1
Updated by Giovanni Manghi almost 7 years ago
- Easy fix? set to No
- Regression? set to No
#2
Updated by Jürgen Fischer over 6 years ago
- Category set to Unknown
#3
Updated by Giovanni Manghi about 5 years ago
- Resolution set to end of life
- Status changed from Open to Closed
End of life notice: QGIS 2.18 LTR
Source:
http://blog.qgis.org/2019/03/09/end-of-life-notice-qgis-2-18-ltr/
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