Using processing.runandload in QGIS 3
I think with the new QGIS 3.0, it is much easier to incorporate the input parameters of an algorithm into a dictionary which can then be called using:
processing.runAndLoadResults()
which is the equivalent to the QGIS <= 2.18 version:
processing.runandload()
So your code could look like:
import processing
rasterLyr = QgsRasterLayer("C:/Users/Mustafa Uçar/Desktop/Tutorial/qgis_data/dem/dem.asc", "hillshade")
rasterLyr.isValid()
parameters = {'INPUT': rasterLyr,
'BAND': 1,
'COMPUTE_EDGES': False,
'ZEVENBERGEN': False,
'Z_FACTOR': 1.0,
'SCALE': 1.0,
'AZIMUTH': 315,
'ALTITUDE': 45,
'OUTPUT': "C:/Users/Mustafa Uçar/Desktop/Tutorial/qgis_data/dem/hillshade.tif"}
processing.runAndLoadResults('gdal:hillshade', parameters)
Note that gdalogr:hillshade
is now currently gdal:hillshade
.
I followed @Joseph directions and it helps me to see another visions. I opened processing toolbox in QGIS and complete missing parameters. Here is the last version:
import processing
rasterLyr = QgsRasterLayer("C:/qgis_data/dem/dem.asc", "Hillshade")
rasterLyr.isValid()
parameters = {'INPUT': rasterLyr,
'BAND': 1,
'COMPUTE_EDGES': False,
'ZEVENBERGEN': False,
'Z_FACTOR': 1.0,
'SCALE': 1.0,
'AZIMUTH': 315,
'COMBINED': False,
'ALTITUDE': 45,
'MULTIDIRECTIONAL': False,
'OUTPUT': "C:/qgis_data/dem/hillshade.tif"}
processing.runAndLoadResults('gdal:hillshade',parameters)