Hi, As i mentioned in my couple of previous mails, I found that v.surf.rst function does not work for either 2D point or iso-lines unless "Use Z coordinates for approximation" flag is ticked together with the selection of the *name* of the attribute column with values to be used for approximation. When both are chosen, it runs and gives the expected output.However I think there is a minor bug in this function and it should be rectified and made work for 2D data sets without selection of Z flag. The version of GRASS i used is WINGRASS 7 installed through OSGEO4W installer.
Cheers, Brian.
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