Extracting data from a raster file with the borders of polygon (vector in shapefile)

Question

Abbas 2014-2-26

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https://ww2.mathworks.cn/matlabcentral/answers/119271-extracting-data-from-a-raster-file-with-the-borders-of-polygon-vector-in-shapefile

回答： Suman Dhamala 2021-6-28

Hi everyone,

I am working with geotiff files and I want to extract the value of part of it restricted by a polygon in a shapefile. In ARC GIS there is a command called "extract by mask" and it is possible to extract part of a raster file using a polygon or another smaller raster which is smaller than the original file. Let me know how I can do it.

Cheers Abbas

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Answer 1

Chad Greene 2014-9-21

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https://ww2.mathworks.cn/matlabcentral/answers/119271-extracting-data-from-a-raster-file-with-the-borders-of-polygon-vector-in-shapefile#answer_152470

This may not be exactly what you're looking for, but you could interpolate values given by lat/lon or map x/y using geotiffinterp. You may be able to adapt the regridding example in that link to suit your needs.