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Tip #137: The Filter Station Scan Points Command

By Erin Johnson posted 01-29-2021 12:14


Good morning TBC’ers! Have you ever wanted to narrow down your scan dataset and focus on just your scan points of interest? Well, today I will be demonstrating the Filter Station Scan Points command. The Filter Station Scan Points command creates one or more new point cloud regions that can be selected in the View Filter Manager for exclusive viewing of points within a specified distance from the scan stations that captured them. This makes it easier to view just the scan points with which you are interested in working.


To utilize the Filter Station Scan Points command, follow these steps:

1. Navigate to the Point Clouds Ribbon and select Filter Station Scan Points under Regions:

2. Click in the Point cloud region selection field and then, in the Project Explorer or a graphic view, select the point cloud region whose scan station(s) you want to filter:


The scan stations associated with the selected point cloud region are displayed in the Select stations list:

3. In the Select stations list, select one or more stations you want to filter using the check boxes:

4. In the Distance from station field, enter the distance from each selected station out to which scan points will be included in the new region that will be created for that station (the distance units are in the same units as your defined project units):

5. Click the Compute button:


The progress of the point cloud region process is displayed at the bottom of the window. When it is complete, each newly created region is displayed as a new node nested beneath the parent Point Cloud Regions node in the Project Explorer:


You can use the View Filter Manager to hide each new region, view it exclusively, or view it along with other selected point cloud regions:


If necessary, you can merge the new point cloud region back to its original parent region.


Here is my scan data before and after filtering my scan points:



I hope this tip comes in handy next time you are working with scan data in TBC!