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How to compare geospatial grid and points in data table?

Posted 10 years ago

Dear WM users,

For a long time I can't to find solution for next problem. I have two dataset: first - geospatial grid (geophysical measurements) in Surfer GRD format, second - data table with control points information with four columns (PointName, Xcoord, Ycoord, Value). I need to extract values from grid in control points position and store it in fifth column in my data table. I attached my data files to this message.

What approach should be used to solve this problem? I will be grateful for Your advice.

POSTED BY: Anton Ekimenko
Posted 10 years ago

This problem was solved. The solution (forum thread with solution) is in attachment.

Thank you

POSTED BY: Anton Ekimenko
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