Curvature

Menu

This tool is accessible via the 'Tools > Other > Curvature' menu.

Description

This tool evaluates the curvature of a point cloud.

Procedure

Select one or several point clouds then start this tool.

A dialog will appear:

Parameters

• Curvature: choose the curvature type (Mean, Gaussian or the simpler 'Normal change rate' )
• kernel: neighborhood size (for quadric fitting - see Notes below)

Curvature output

Notes:

• the curvature at each point is estimated by best fitting a quadric around it
• if there's not enough neighbors to compute a quadric (i.e. less than 6) an invalid scalar value (NaN) is set for this point. This point will appear in grey (or not at all if you uncheck the 'display NaN values in grey' option of the scalar field parameters).