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MAPPING TOOLBOX LAT/LON vectors are not strictly monotonically increasing, hence zi = interp2(LO​N,LAT,GAIN​,loni,lati​) ; gives me errors

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Lino
Lino 2019-3-30
编辑： Lino 2019-4-3
I have a data file (.csv) that has satellite gain antenna vs. latitude (LAT), & longitude (LON) see plot of this data below.
I would like to find the gain vs. any arbitrary LAT/LON position. Because of the concentric circle nature of antenna patterns (for lack of a better term) the LAT/LON vectors are not strictly monotonically increasing, hence zi = interp2(LON,LAT,GAIN,loni,lati) ; gives me errors.
How can I use a MATLAB Mapping Toolbox functions such as geointerp on the imported data to fix this issue.

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Sean de Wolski
Sean de Wolski 2019-4-1
编辑：Sean de Wolski 2019-4-1
Look at geointerp which properly projects lat/lon onto a plane so the interpolation values make sense.

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