Polyhedron demo: First draft for a WRL plugin

[maxGimeno]

Summary of Changes

This adds a basic WRL reader to the demo. It won't read a file without a "Shape" keyword, and should be enhanced in the future.

Release Management

• Affected package(s):Polyhedron_Demo

[maxGimeno]

Successfully tested in https://cgal.geometryfactory.com/CGAL/testsuite/results-4.14-Ic-116.shtml

[MaelRL]

I think it would be best to postpone that to 4.15, Andreas already had some files that couldn't be opened with just this code. (The issue was that the geometry was only put in a single shape, and all the other shapes were just combinatorics; I guess that in that case you're supposed to use the coordinates from the first shape in the other shapes too...)

[sloriot]

@MaelRL @afabri do you have an updated version of the reader that could be contributed here?

[MaelRL]

As of now, no.

[lrineau]

Do we want to close this pull-request? It seems the current code is not good enough:

@MaelRL commented on Feb 7, 2019, 10:25 AM GMT+1:

I think it would be best to postpone that to 4.15, Andreas already had some files that couldn't be opened with just this code. (The issue was that the geometry was only put in a single shape, and all the other shapes were just combinatorics; I guess that in that case you're supposed to use the coordinates from the first shape in the other shapes too...)

[sloriot]

Closing it. We will reopen/finish it if we need to.