Normal ctlmatrix in NURBS

    Jul 29 2009 | 1:39 am
    So its my first time using NURBS, and I'm a bit confused on how to get a ctlmatrix back to a normal, flat plane (the way it is before you send it a random ctlmatrix). I'm sure the explanation is very simple, and I've avoided going to the forum for the answer, but I can't seem to figure it out. I suspect it involves a [jit.matrix 3 float32 1 1] with some sort of [setcell $1 $1 val ?. ?. ?.] but I can't seem to figure it out. Can anybody put me in the right direction? Here is what I have so far.

    • Jul 29 2009 | 3:42 am
      one way is to send the matrix through jit.expr:
      [jit.expr @expr snorm[0] snorm[1] 0.]
    • Jul 29 2009 | 8:00 pm
      exactly what I was looking for, thank you so much! i really need to start digging into jit.expr
    • Jul 29 2009 | 8:09 pm
      i know that this is known to most, but theres an object that I had not used before that does the same thing [jit.gencoord].
      just thought I would post that up here for others searching for answers.