Global Mapper v25.0

Resampling elevation with out unsightly contour lines

djbetlach
djbetlach Global Mapper User
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.

Thanks

Comments

  • global_mapper
    global_mapper Administrator
    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.

    Thanks,

    Mike
    Global Mapper Support
    support@globalmapper.com