How can I check if a point belongs to a flat surface or not?

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Hadeer Mostafa
Hadeer Mostafa el 8 de Nov. de 2016
Comentada: Hadeer Mostafa el 8 de Nov. de 2016
Hi, I have LIDAR point clouds data, I will perform sharp feature detection in point clouds. can anyone tell me how can I check if a point belongs to a flat surface or not?

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bemin
bemin el 8 de Nov. de 2016
get the Z axis value for the point and and compare it to the Z axis value for the surface
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Hadeer Mostafa
Hadeer Mostafa el 8 de Nov. de 2016
Dear bemin, Thanks a lot for replay, I want to know what do you mean by "Z axis value for the surface"? my file contains the coordinates(XYZ) of points only that generate digital elevation model (DEM) please give me more explanation with example. Thanks advance

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