I'm trying to create my first script with qgis. I began with graphical modeler but some bugs block me to do calculation on variables. So I decide to write it myself.
I wrote that for the moment :
##Zonage_alamano=name ##point=vector ##sortie=output vector ##angle=number ##longueur=number ##largeur=number demilargeur = (largeur)/2 angleinverse = -(angle) reproj_1 = processing.runalg('qgis:reprojectlayer', point, 'EPSG:2154', None, progress=None) enveloppe = processing.runalg('qgis:concavehull', reproj_1['OUTPUT'], 0.1, False, False, None, progress=None) rotate1 = processing.runalg('grass7:v.transform', enveloppe['OUTPUT'],0.0,0.0,0.0,1.0,1.0,1.0, angle, None,-1.0,0.0001,0,None, progress=None) buffer = processing.runalg('qgis:fixeddistancebuffer', rotate1['OUTPUT'], demilargeur, 12, False, sortie)
But I have this message :
2017-09-05T16:42:11 1 Erreur : valeur du paramètre faux : None
2017-09-05T16:42:11 2 Uncaught error while executing algorithm
Traceback (most recent call last): File "/Applications/QGIS.app/Contents/MacOS/../Resources/python/plugins/processing/core/GeoAlgorithm.py", line 203, in execute self.processAlgorithm(progress)
File "/Applications/QGIS.app/Contents/MacOS/../Resources/python/plugins/processing/script/ScriptAlgorithm.py", line 378, in processAlgorithm exec((script), ns)
File "", line 21, in TypeError: 'NoneType' object has no attribute 'getitem'
I think issue come from v.transform treatment, because I made a test without it and it run well. I searched for information about writting v.transform in qgis script but I didn't find nothing...
Somebody have an idea to help me ?