Extract a Surface from a Point Cloud Scan in BuildIT Metrology
Overview
The following article provides step by step instructions for extracting a surface (plane, cylinder, or sphere) from a point cloud using BuildIT.
Extracting a Surface
From the Refine menu, select Extract Surface from Cloud... and follow the steps below.
- Roughly select the relevant points with the polygonal selection tool.
- Select the type of feature from the Surface type drop-down.
- For the Tolerance field, you can use the default setting, or if your polygon selection is very accurate, set it to something smaller.
- Create new cloud from identified points.
- Click the Preview button and evaluate the surface before creating. If the preview does not appear as expected try increasing the tolerance. Once you are satisfied with the results, click the Apply button (check mark) to create the surface.
- After the surface has been created, in the Manager tree, you will find the cloud that contains only the points that were used to fit the surface. It should be named after the surface type, with a “_Cloud” suffix.
