Additional geometry primitives #1702
Description
For shaping, where should additional primitives go? I feel like the most general should go in Primal, but perhaps there is a better place for the more specialized ones, and perhaps stuff like "Generalized Cylinder" belongs in Klee rather than Primal.
Current Primal geometry primitives include
- Cone
- Sphere
- Tetrahedron
- Plane (half-space)
- Hexahedron
These map pretty well to the shaping primitives used by a code that could adopt Axom Klee for shaping. But that code has additional primitives, some easy, some fairly baroque:
- Cylinder
- Ellipsoid
- Elliptic Paraboloid
- Helix (defined by axis, tube radius, coil radius, coil pitch)
- Torus
There are a few more, fairly powerful operators in common use:
- Multi-faced Grain (intersection of half-spaces)
- Generic (a level set: "paint where the (lazy) N-D table evaluates < 0")
- Volume of revolution, defined by
- axis AB
- polyline AB that revolves around the axis
- Generalized Cylinder
- a plane with embedded closed polyline (the base)
- an axis of extrusion, not necessarily normal to the base
- Generalized Cone
- a plane with embedded closed polyline (the base)
- an apex
Where should these go (if at all)?