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Resampling elevation with out unsightly contour lines

djbetlachdjbetlach Global Mapper UserPosts: 1
edited October 2010 in Technical Support
I've got some 16m GeoTiff DEM I need to resample to 4m. I get these obvious contour lines where the terrain is more horizontal. Looking for suggestions beyond turning on anti-aliasing.



  • global_mapperglobal_mapper Administrator Posts: 17,238
    edited October 2010
    You might try changing your resampling method to bicubic for the layer. That should work better for over-sampling your data than undersampling it. Also try changing the export elevation units to decimeters (or decifeet) or switch to 32-bit floating point samples so you can get some definition within flat areas.

    Let me know if I can be of further assistance.


    Global Mapper Support
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