Former-commit-id: 3cbdbcc5dd8cc73b5efc40f62e3b6a9619f628cc
Add of the source Former-commit-id: f3d01ef18ccc1ae906693f388e696c0763576a3b
Wrong getter Former-commit-id: 951d0a46d189c13009854f4bad43e7a243470f03
Class ray who represents a ray in space and who can be used as a line. Support of classical intersections. Former-commit-id: 2ea5af0cf749dbefdd841f9b02bfab2af5058cdb