I have more than 5 000 000 XYZ points on a area (width 7000 meters / height 10 400 meters).
I need to create a DTM with a 1x1 m² definition as accurate as possible.
I think it's better to create in a first step a DTM with 10x10 m² network and after run a Spline function on this network to get a new one with 1x1 m² definition.
Someone asked me why I don't run directly an interpolation to get at the first run a 1x1 m² network.
Could someone tell me who is doing better ?
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