Clip Island within a raster

mleytemmleytem Global Mapper UserPosts: 3
edited January 2012 in Raster Data
I need to clip an island in a raster using a polygon. This island will be filled using a cropped raster. I know how to crop a raster to a polygon, but can not figure out how to create an island using a polygon.

Thanks
Mike

Comments

  • global_mapperglobal_mapper Administrator Posts: 17,238
    edited January 2012
    Mike,

    First create an area for the outer bounds, then select the island area to cut out with the Digitizer Tool, then right-click and select to subtract/add that as an island to an area, then click in the outer area to add it as an island. Then select your outer boundary area (now with island) and do the export cropped to the selected area.

    Let me know if I can be of further assistance.

    Thanks,

    Mike
    Global Mapper Guru
    gmsupport@bluemarblegeo.com
    http://www.globalmapper.com
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