Data TypesΒΆ

The impact functions essentially combine spatial data in different formats through a common interpolation library. This essentially allows values from one data set to be assigned to another independent of their types. Given two layers H and E, say, the call:

I = H.interpolate(E)

will produce a new layer with all values from H transferred to E in a manner appropriate for the data types of H and E. Generally, existing values in E will be also be carried over to I. Conceptually, the new layer I represents the values of H interpolated to E.

The following table shows allowed combinations and what interpolation means in each case.

H   E

  Raster Polygon Line Point
Raster Resampled Centroid Belum Bilinear Interpolation
Polygon No No Belum Clip and tag
Line Not applicable
Point Not applicable

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