Hi.

Can someone help me out with a macro that can convert bezier splines to
regular splines? Something that can take as input:

prism {
    linear_sweep
    bezier_spline
    1.0, //top
    0.0, //bottom
    16, //nr points
    /*   0*/ <202, 884>, <202, 884>, <508,884>, <508,884>,
    /*   1*/ <508, 884>, <508, 884>, <508,602>, <508,602>
}

and output something like

spline {
    cubic_spline
    0.0, <202, 0, 884>,
    0.125, <202, 0, 884>,
    0.25, <508, 0, 884>,
    0.375, <508, 0, 884>,
    0.5, <508, 0, 884>,
    0.625, <508, 0, 884>,
    0.75, <508, 0, 602>,
    0.875, <508,602>
}

That is a macro that can take a prism containing a bezier_spline, and output
a regular spline.

My main problem is I don't know how to perform operations on POV-Ray objects
to extract their underlying structure. Any help would be greatly
appreciated.

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