Feature request #7727
Support GRASS rasters as inputs in Processing
|Pull Request or Patch supplied:||No||Resolution:|
|Easy fix?:||No||Copied to github as #:||16635|
I'm working with QGIS sample data GRASS datset. Loaded the airports and
gtopo30. I can select the airport layer in Sextante dialogs but not
#1 Updated by Victor Olaya about 7 years ago
- Status changed from Open to Feedback
This is a complex issue.
GRASS layers cannot be used in their native format by other apps like SAGA, OTB, etc. They have to be converted. But to convert a layer when its needed, SEXTANTE uses GDAL. GDAL, however, does not support GRASS layers, so the only way of doing it is to load the layer into memory and then write it to a GDAL-supported format. This will not work for large layers.
Finding a solution for all cases doesn't seem to be easy... I would like to think a bit more about this before adding a solutino that will not work in many cases, which will make SEXTANTE unstable in case of using GRASS layers.
Ideas and comments are welcome