Surface points
Not Lite
Surface points routine classifies points that fit to locally smooth surfaces. It classifies points on planar surfaces of any direction and also on rounded surface. The routine can be used as pre-classification for ground, building roof or wall classification in noisy point clouds, such as photogrammetric point clouds.
After classifying surface points, it might be useful to smooth the points using the Xyz method before running additional classification routines.
SETTING |
EFFECT |
|---|---|
From class |
Source class(es). |
|
Opens the Select classes dialog which contains the list of active classes in TerraScan. You can select multiple source classes from the list that are then used in the From class field. |
To class |
Target class. |
Tolerance |
Offset from the main surface up to which points are included in the classification. Given in CAD file units. |
Use reliability as weight factor |
If on, the reliability value stored for points is considered in the surface classification. The software is more eager to classify points of higher reliability as surface. |
Inside fence only |
If on, points inside a fence or selected polygon(s) are classified. |
