[Pyode-user] GeomRay

[Fred B. <fl...@ys...>]

I was going to replace my own ray tracing code, to use GeomRay and 
collide, but I'm not sure how to get the GeomRay positioned and oriented.

I wrote some simple code to create a matrix to orient the ray, but then 
when I go to position it:

  File "ccluster.py", line 511, in trace_root
    ray.setPosition(pstart)
  File "geomobject.pyx", line 135, in ode.GeomObject.setPosition
ValueError: Cannot set a position on non-placeable geoms.

?

What _should_ I be doing?