Lidar data- I dont want everything

[jenniferchavez]

I am working with Lidar points. When I create a surface from the point cloud, it is selecting everything. buildings, trees, etc.. How do i get it to just use the ground points in the lidar data?

[Opie]

Is there anyway to isolate the ground points within the lidar data?

I do not know of any way to only select the ground points. If you have a known range of elevations, you could limit your surface to fall within that range.

[jfarah]

Is there anyway to isolate the ground points within the lidar data?

I do not know of any way to only select the ground points. If you have a known range of elevations, you could limit your surface to fall within that range.

Hi Opie, are you using the point cloud style dialogue and setting the classification to ground? Then in the points tab, set assign color by classification - I was under the impression this filters out all but the selected classification, then when I create a surface from it we have bare earth topo. Is this not correct? If there is no function to filter out the classifications I need then I'm afraid I won't find it very useful at all.