I'm not a blender expert, so I don't know how to do this quickly. Is it possible to create quickly something like the following?
Regardless of the "Blend4Web" or "Blender" I'd literally like to istantiate these axis as geometric models in a scene, it doesn't seem to be a default model in blender.
Not exactly, but basically a couple of these reference frames two planes in front of each, a third plane and a couple of lines, maybe showing where the intersections happen.
Update: Something like the stuff below is more close to what I want: