Bug report #21011
raster calculator in processing does not work with Aspect raster
| Status: | Closed | ||
|---|---|---|---|
| Priority: | Normal | ||
| Assignee: |  Alessandro Pasotti | ||
| Category: | Processing/QGIS | ||
| Affected QGIS version: | 3.4.3 | Regression?: | No |
| Operating System: | Windows 10 - 64 | Easy fix?: | No |
| Pull Request or Patch supplied: | No | Resolution: | worksforme |
| Crashes QGIS or corrupts data: | No | Copied to github as #: | 28830 |
Description
Using the raster calculator in processing, using a simple expression (for example "Aspect@1" > 0) results in an invalid output raster. The same expression with the same input works as expected using the raster calculator under Raster.
To reproduce:
1. Processing>raster terrain analysis>aspect, use srtm_41_19.tif for input, leave the rest default (this successfully creates aspect)
2. Processing>raster analysis>raster calculator, select the created aspect layer for input, use eg "Aspect@1" > 0
Result:
output file seems invalid, under information from provider is shows
STATISTICS_VALID_PERCENT=0
AREA_OR_POINT=Area
History
#1
Updated by Luigi Pirelli over 5 years ago
thank you for the detailed issue report
#2
Updated by Alessandro Pasotti over 5 years ago
- Assignee changed from Luigi Pirelli to Alessandro Pasotti
#3
Updated by Alessandro Pasotti over 5 years ago
- Resolution set to worksforme
- Status changed from Open to Feedback
I cannot reproduce on master, can you try on latest master?
Btw, some steps are missing between 1 and 2: unless you select "Reference layers" (or set all parameters) the algorithm a point 2 will fail.
#4
Updated by Janneke van Dijk over 5 years ago
Indeed, downloaded the nightly on Windows and now it works as expected...I guess it is advisable to test potential bugs on master before submitting a bug report :-). Glad it works!
#5
Updated by Giovanni Manghi over 5 years ago
- Status changed from Feedback to Closed