jodonnelliv

Select LIDAR points above user-created polygon shape?

Discussion created by jodonnelliv on Jul 20, 2011
Latest reply on Jul 22, 2011 by Hornbydd
Hello All-

I'm working LIDAR points for the first time and am running into problems. Any help would be appreciated.

I have a set of first return points representing tree tops, roofs, etc. These surround an airport.

I also have a 2D curved shape (built in CAD, in .dwg) that was built based on federal guidelines. It represents a 2D plane above which there should be no objects, lest they interefere with the airplanes' taking off and landing. Imagine a long thin bowl that extends from each end and sits on the ground surface.

I need to select those points from the LIDAR shp that are higher in elevation than the polygons that make up the boundary.

Any thoughts or advice would be welcome.

Cheers,
John

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