Hi,
I am currently playing with PyGlet in combination with Box2d (physics
engine). I want to parse SVG like pathes (polygons) for both, Box2D
and game graphics. My problem is, that Box2D only accepts convex
polygons, which is why I need some kind of simple polygon
decomposition / triangulation algorithm.
As far as I have undestood, GLU offers triangulation using the
tesselator module. And PyGlet offers GLU bindings.
What I tryed:
points = ([0.0,0.0,0.0],[10.0,0.0,0.0],[0.0,10.0,0.0],)
tess = gluNewTess()
gluTessBeginPolygon(tess, None)
gluTessBeginContour(tess)
for point in points:
gluTessVertex(tess, point, point)
gluTessEndContour()
gluTessEndPolygon()
What Python thinks about my code:
"[...]
Traceback (most recent call last):
File "Bezier.py", line 123, in <module>
space.main_loop()
File "Bezier.py", line 101, in main_loop
gluTessVertex(tess, point, point)
ctypes.ArgumentError: argument 2: <type 'exceptions.TypeError'>:
expected LP_c_double instance instead of list"
To be honest, I have not worked with OpenGL before, which is why I do
not know, whether this is a PyGlet problem or something else (maybe I
simply misundestood the whole Tesselator thingy). But it sounds like a
problem with the GLU bindings.
- Michael
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