Group by density
Not Lite
By density grouping command assigns a group number to points appearing close by each other.
This grouping method is suitable for identifying separated arbitrary objects represented in the point cloud, such as cars.
SETTING |
EFFECT |
|---|---|
Class |
Point class(es) included in the search for groups. |
|
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 Class field. |
Current groups |
Determines how current group numbers of points are handled: •Clear - existing group numbers are deleted before assigning new numbers resetting the old grouping. •Keep - existing group numbers are kept continuing the previous grouping. |
Use color |
If on, color values assigned to the points are used for grouping. The Weight of color significance is determined by the given percentage value. |
Gap |
Distance between consecutive groups: •Automatic: the software decides what points belong to one group or to another. This is recommended for objects with variable gaps, such as moving objects on a road. •User fixed: the user can define a fixed distance value in the text field. This is suited for fixed objects with large distances in between, such as powerline towers. |
Require |
Minimum amount of points that form a single group. This is active only if Group by density is switched on. |
Density based approach aggressively groups all points appearing close to each other, leaving only separated points ungrouped. Thus, it is typically run last when using many grouping routines in a macro.
