I need to create temporary files as intermediate output to be used with processing algorithms. So, I implemented this:
Processing.runalgorithm("grass:v.to.rast.attribute", ........, None)
This line creates the output in C:\Users...\AppData\Local\Temp\AppData\processing\"folder"\output.tif
In this temp directory, three folders are created.
Now, I need to run other algorithm:
The input of this is the output of the last algorithm, I am trying to access that but I can´t.
I try with system.getTempFilenameInTempFolder('output'+'.'+'tif'). But this line only access one of the three folders.
I research in http://docs.qgis.org/2.6/pt_PT/docs/user_manual/processing/console.html, and try the code presented for qgis 2.6 (but didn't work):
##dem=raster ##twi=output ret_slope = processing.runalg("saga:slopeaspectcurvature", dem, 0, None, None, None, None, None) ret_area = processing.runalg("saga:catchmentarea(mass-fluxmethod)", dem, 0, False, False, False, False, None, None, None, None, None) processing.runalg("saga:topographicwetnessindex(twi), ret_slope['SLOPE'], ret_area['AREA'], None, 1, 0, twi)
What can I do to access the output?