[Qgis-user] problem with interpolation function

[jacques.beilin]

Dear all,

I want to generate a DEM from a set of X,Y,Z points. I have an X,Y,Z set 
of points in a csv file. In my example they are already regularly 
sampled but it is not always like this.

I use Raster/Interpolation/Interpolation using TIN (Delaunay 
triangulation). I always get stripe patterns which does not seem to be 
coherent with Z-values.

Does someone get the  same results with this function ?

Best regards,

Jacques




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