Minimum Separation

Source file: filter-by-minimum-separation.htm

Point density decreases as the distance from the scanner increases. The Minimum Separation filter (Ctrl+M) reduces the number of points close to the scanner while retaining points further away, resulting in a more even points distribution, simpler modelling and reduced processing time.

  • To run the minimum separation filter, follow these steps:

    1. Select the scans to be filtered.

    2. On the Position and Filter tab, in the Filter group, click Minimum Separation.

    3. Define the Minimum distance, which is the required average minimum separation between points in the object.

    4. Select the required Filter combination (see Filter Combinations). 

    5. Select or clear Apply filter to selection as a whole as required:

      • If selected, the filter treats all selected objects as a single object.

      • If cleared, each selected object is filtered independently.

    6. Click OK or Apply.

Before filtering (top) and after filtering (bottom). Note that the point density is more even over all. Applying the filter to each scan individually would give a less even result.

Tip:  You can redisplay filtered points by clicking Show All. See Show All.