[x3d-public] CADInterchange profile: missing IndexedFaceSet, Geometry3D component?

[Don Brutzman]

Extensible 3D (X3D), ISO/IEC 19775-1:2013, Annex H CADInterchange profile
https://www.web3d.org/documents/specifications/19775-1/V3.3/Part01/CADInterchange.html

Note that IndexedFaceSet is missing, though all the other Indexed* nodes (includeing triangle nodes) are there.

Seems like an omission, we should add support for it:

* Geometry3D component
   https://www.web3d.org/documents/specifications/19775-1/V3.3/Part01/components/geometry3D.html
   https://www.web3d.org/documents/specifications/19775-1/V3.3/Part01/components/geometry3D.html#t-supportlevels

level
	1	BoxConeCylinderSphere
	2	+ IndexedFaceSet
	3	+ ElevationGrid
	4	+ Extrusion

suggest level 2 since CAD models aren't fancy.  Tools shouldn't have to translate IFS into a triangle node.

Feedback welcome, will create mantis issue.

all the best, Don
-- 
Don Brutzman  Naval Postgraduate School, Code USW/Br       brutzman at nps.edu
Watkins 270,  MOVES Institute, Monterey CA 93943-5000 USA   +1.831.656.2149
X3D graphics, virtual worlds, navy robotics http://faculty.nps.edu/brutzman