This is a python workbench, with a collection of tools for NURBS curves and surfaces. This workbench is developed with FreeCAD Master (currently 0.17dev) and OCC 7.1. Some tools may not work with earlier versions.

Note: I am a very bad programer, and this workbench is full of dirty, crappy code ;-) Please don't use these tools for any serious work.

There are 2 methods to install Curves WB:

1. For FreeCAD version 0.17 or higher it's preferred to install this workbench with the FreeCAD's addon manager under the label "Curves".
2. The second method is

• go in your personal FreeCAD folder ( usually ~/.FreeCAD on Linux )
• cd ./Mod ( or create this folder if it doesn't exist )
• git clone https://github.com/tomate44/CurvesWB
• start FreeCAD

"Curves" workbench should now show up in the workbench dropdown list.

Feedback, suggestions, and patches (via Pull Request) are all appreciated. If you find a problem with this workbench please open an issue in the issue queue.

• Create a B-Spline curve
• Create a parametric editable B-Spline curve from a selected edge
• Join a set of edges into a single B-Spline curve
• Discretize an edge with various methods
• Approximate a set of points to a B-Spline curve or surface
• Create a parametric blending curve between to edges, with up to G2 continuity
• Comb Plot tool to visualize the curvature flow of an edge
• Zebra tool creates zebra stripes environment texture for surface inspection
• Nurbs surface editor to edit a Nurbs surface by moving the control vertices
• Trim tool to cut a face with an edge
• Geom Info displays information in the 3D view, about the selected edge or surface
• Extract subShapes from an object
• Parametric isocurve object
• Map a sketch on a face
• Birail object to be used as support for a "Sweep On 2 Rails" tool

CurvesWB is released under the LGPL2+ license