Curves ParametricComb

Description
The Curves ParametricComb .... This tool is part of the external workbench called Curves.

Usage
Select an object in the tree view (sketch, wire...) or one or several edges in the 3D view (use CTRL key) An comb is created, showing the curvature of the selection. The comb can help to see regularity or smooth of the curve as well as the continuity between two curves. A comb is only for vizualisation. A 3D comb will be created for 3D curves. Sample and scale can be change.
 * 1) Switch to the [[Image:Curves_workbench_icon.svg|24px]] Curves workbench (install from [[Image:AddonManager.svg|24px]] Addon Manager is necessary, if not previously installed)
 * 2) Invoke the Curves ParametricComb command several ways
 * 1) * Press the [[Image:Curves_ParametricComb.svg|24px]] button
 * 1) * Use the