Hi FME experts !
I am looking for a convenient way to change some values in a raster
based on a location criteria. For example, I would like to change in a
DEM the elevation value in the area defined by a polygon.
I tried the following method :
_ transform the raster in a grid of points (RasterPointExtractor)
_ change the Z coordinate of the relevant points (PointOnAreaOverlayer)
_ transform the grid of points in a raster (SurfaceModeller)
But the last step (SurfaceModeller) is very slow because it recomputes
a surface model instead of just inserting the points into a raster.
Any idea ?
Thank you very much for your help.
Frederic
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