How to find the abnormal elevations

LittleSANTA
LittleSANTA
in Features Discussion

Global Mapper 27 Pro: I have a point feature layer with over 100,000 points, and a DEM digital elevation layer for the same area. The elevation range of my point features layer is between 325-525 meters, but a few hundred of them have incorrect elevations, deviating by about 30 meters from the correct values. These erroneous point features have elevations around 400 meters. What methods can I use to identify these points with incorrect elevations?

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  • DerrickW
    DerrickW

    Copy your elevations to a new attribute, then update the points with the DEM elevations. Calculate the delta between them and then sort the table in your attribute editor to find the largest values.


    You've created about 5,000 new threads on the forums with questions like this. Have you tried looking through the help docs before posting questions?

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