Mesh AddFacet

Description
The Mesh AddFacet command adds faces along a boundary of an open mesh object. It can be used to fill holes.

Usage

 * 1) Note that during the command edit mode will be active. In this mode it is impossible to rotate or pan the 3D view, although zooming still works. But you can temporarily switch out of edit mode with the Std ToggleNavigation command should you need to change the view.
 * 2) Select a single open mesh object.
 * 3) Select the  option from the menu.
 * 4) If you hover over a vertex along a boundary of the mesh a yellow marker will appear and a left-click will select it.
 * 5) Select two additional points to define a triangle. The order of the three point, clockwise or counterclockwise, determines the direction of the normal of the triangle.
 * 6) A menu pops up with the following options:
 * : this will add the triangle to the mesh.
 * : this will flip the normal of the triangle. After selecting this option a left-click will again show the menu.
 * : this will remove the selected points.
 * 1) Optionally add more triangles.
 * 2) Choose  from the 3D view contex menu to end the command.