TerraScan Ground Parameters

TerraScan’s Ground Routine is designed to classify a ground surface from point data. There are multiple parameters within the filter. The following chart is a summary and general guidelines for setting the parameters.

Max Building Size Grid size for initial seed surface Smaller is more aggressive, higher fidelity, but more false ground points in initial surface
Terrain Angle Max terrain angle Maximum slope plus 10 – 15°; 88° in areas of near vertical features (cliffs, retaining walls)
Iteration Angle Maximum value at which a point will be added to the ground surface Higher is more aggressive; typical is 4 – 10°
Iteration Distance Maximum height above surface at which a point will be added to the ground surface Higher is more aggressive; typical is 0.5 – 1.5 m
Reduce Iteration Angle Soft stop; adds less points in areas with greater point density ½ of desired grid spacing
Stop Triangulation Hard stop; ensures no triangles with an edge smaller than the specified value ¼ of desired grid spacing

 

Share

GeoCue Group Support

GeoCue Group Support has written 513 articles

Leave a Reply