Azzera filtri
Azzera filtri

Easiest way to check if the point is on the land or on sea?

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I have a grid of points with coordinates and I need to select only points on the land.
I can load coastlines, then split contours with NaN inside (2 of them) into separated ones, then convert each contour to alphaShape, and then apply inShape to each point and alphaShape, but maybe there is simpler way?
Thanks

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David Hill
David Hill il 7 Mar 2023
Modificato: David Hill il 7 Mar 2023
Do you have the mapping toolbox? Use https://www.mathworks.com/matlabcentral/fileexchange/48661-landmask If so it is as simple as:
landmask(lat,lon);

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