Vectorising Grid Classes
shapes_grid
ParameterRaster|GRID|Grid|False
ParameterSelection|CLASS_ALL|Class Selection|[0] one single class specified by class identifier;[1] all classes
ParameterNumber|CLASS_ID|Class Identifier|None|None|0
ParameterSelection|SPLIT|Vectorised class as...|[0] one single (multi-)polygon object;[1] each island as separated polygon
OutputVector|POLYGONS|Polygons
