Surface ExtendFace

Description
extrapolates an existing face or surface at its boundaries with its local U and V parameters.



Usage

 * 1) Make sure you have a face or surface.
 * 2) Select the existing surface, then.

Options
This command doesn't have any options. Either it works with the selection or not.

Properties
A Surface ExtendFace ( class) is derived from the basic Part Feature ( class, through the subclass), therefore it shares all the latter's properties.

In addition to the properties described in Part Feature, the Surface Filling has the following properties in the property editor.

Data

 * : boundary edges; C0 is required for edges without a corresponding face.
 * : order of constraint on boundary faces;, , and are possible.
 * : unbound constraint edges; C0 is required for edges without a corresponding face.
 * : order of constraint on unbound faces;, , and are possible.
 * : free constraint on a face.
 * : order of constraint on free faces.
 * : constraint points on surface.
 * : initial surface to use.
 * : starting degree, it defaults to.
 * : number of points on an edge for constraint.
 * : number of iterations, it defaults to.
 * : it defaults to.
 * : 2D tolerance, it defaults to.
 * : 3D tolerance, it defaults to.
 * : G1 tolerance, it defaults to.
 * : G2 tolerance, it defaults to.
 * : maximum curve degree, it defaults to.
 * : maximum number of segments, it defaults to.
 * : maximum curve degree, it defaults to.
 * : maximum number of segments, it defaults to.

View

 * : it defaults to ; if set to, it will show an overlay with the control points of the surface.

Scripting
FreeCAD Scripting Basics.

The Surface Extend tool can be used in macros and from the Python console by adding the object.
 * The face to extend must be assigned as a LinkSub to the property of the object.