* Solid nodes: NURBS output.

* FreeCAD Nurbs support: preparation.

* "Solid faces" node outputs FreeCad's Nurbs.

* "Extrude Face (Solid)" node.

* Support Polygon faces.

* Introduce face-making nodes.

* Register the nodes in the menu properly.

* Add "Solidify Face" node.

* Remove trivial node.

* Info -> Debug.

* "Revolve Face" node.

* "Cut Surface to make a Face" node.

Better name, someone? let's discuss in the PR.

* Minor fixes.

* "Solidify" operation requires C1 continuity guaranteed by surface's knot vectors.

* Rename a node.

* "Solid from two Faces" node.

* Icon for "ruled solid".

* Icons for nodes.

* Icons for nodes.

* Bugfixes.

* Fixes/updates

* Move "Ruled Solid" to Alpha nodes — too fragile in my experience

* "Split solid by face" node.

* Some generalization.

* Error handling.

* "Tangents Curve" node: support Nurbs output.

* "face from surface": support ortho projection.

* Remove debug.

* "Project curve to Surface" node.

* "Face from Surface" node: remove extra outputs.

* Add "Helix (FreeCAD)" node.

outputs a NURBS curve.

* Support non-planar faces in "Face from Curves" node

* Fix title.

* Split solid: support several cut surfaces per solid.

* Icon for "Split Solid" node.

* Icon for "project curve" icon.

* "Polygon face" node documentation.

* "Face from Curve" node documentation.

* "Face from Surface" node documentation.

* Documentation for "Extrude Face" node.

* "Solidify face" node documentation.

* "Revolve Face" node documentation.

* "Split Solid" node documentation.

* "Project Curve on Surface" node documentation.

* Documentation for the "Helix" node.

* Fix docs.

* "Sweep Face (Solid)" node.

* "Sweep Face" node documentation.

* Icon for the "Sweep Face" node.