[PyOpenGL-Users] gluNurbsCurve ?

[Prashant S. <ani...@ya...>]

http://img372.imageshack.us/my.php?image=image1lp7.jpg


I am creating a "gluNurbsCurve" and ripped code is here:

x1 = y1 = 25
x2 = y2 = 450
scale = abs(x2-x1)/3.0
midx, midy = (abs(x2+x1)/2.0), abs(y2+y1)/2.0   
degree = 3

    
ctrlpoints=[[x1, y1, 0],
    [x1+scale, y1, 0],
    [midx, midy, 0],
    [x2-scale, y2, 0],
    [x2, y2, 0]]   

Using above I am getting a curve which is missing both start and end points.. (Image1.jpg>Curve 1)

Instead If I use:

ctrlpoints=[[x1, y1, 0],
                [x1, y1, 0],
    [x1+scale, y1, 0],
    [midx, midy, 0],
    [x2-scale, y2, 0],
    [x2, y2, 0],
    [x2, y2, 0]]    

by repeating first and last points I am getting a curve from points to points but I am loosing the smoothness which I am getting from first "ctrlpoints". (Image1.jpg>Curve 2)

Any solution?

Prashant




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