[PyOpenGL-Users] Is glMap1f() broken or am I?

[Rich D. <dr...@in...>]

The 2D (surface) NURBS demos seem to work OK, but when I try to code a
simple line BSPLINE based on C demos I've found, this section of code:

ctrlpoints=[[-4.0, -4.0, 0.0], [-2.0, 4.0, 0.0], [2.0, -4.0, 0.0], [4.0, 4.0, 0.0]]
glMap1f(GL_MAP1_VERTEX_3, 0.0, 1.0, ctrlpoints)    # no stride or order in pygl

seems to fail with this error:

Traceback (most recent call last):
  File "./netplot.py", line 158, in on_display
    self.drawsyn()
  File "./netplot.py", line 72, in drawsyn
    glMap1f(GL_MAP1_VERTEX_3, 0.0, 1.0, ctrlpoints)    # no stride or 
order in pygl
OpenGL.GL.GLerror: [Errno 1281] invalid value

Since the docs weren't clear on how to format ctrlpoints as far as I could
find, I have also tried changing the format of ctrlpoints to this:

ctrlpoints=[-4.0, -4.0, 0.0, -2.0, 4.0, 0.0, 2.0, -4.0, 0.0, 4.0, 4.0, 0.0]

I think the answer lies with ctrlpoints but I'm at a loss for now.  Any 
ideas?

Searching the archive, I notice somebody asked about getting a BSPLINE
type line working a while back.  The answer he got was that the 2D demos 
work . . . true enough, but maybe there is something else going on.

Thanks,
Rich