B-Spline Approximation
grid_spline
ParameterVector|SHAPES|Points|0|False
ParameterTableField|FIELD|Attribute|SHAPES|-1|False
Hardcoded|-TARGET 0
ParameterNumber|LEVEL|Resolution|None|None|1.0
Extent USER_XMIN USER_XMAX USER_YMIN USER_YMAX
ParameterNumber|USER_SIZE|Cellsize|None|None|100.0
OutputRaster|USER_GRID|Grid