Global Mapper v25.0

Elevation data outside selected area


Can you tell me what is happing here.

I created a map catalog of 4 las files download from Queensland Government ( which I have done a thousand times). Created boundary area feature selected it then attempted to create an elevation grid.

I have never seen this happen when I grid lidar before. Why are there points outside the crop area?. The below is from ver21.1. I also tried in ver 22.1 and had the same result


Richard Saunders

1.png 333.7K
2.png 64.3K
3.png 83.1K
4.png 342.2K


  • bmg_bob
    bmg_bob Global Mapper Programmer
    Hello Richard,

    That does not seem right. I suggest that you contact Blue Marble Support directly via email ( to address this issue. Please included a detailed description of your workflow, including the screen captures you posted here, and sample data (catalog file, lidar data, etc.) that can be used to reproduce the problem. Thank you.