ferguson@BKNLVMS.BITNET (03/15/88)
Does anyone have the specification for the algorithm used in GPR_$SPLINE_CUBIC_P (the parametric one)? I've got a program called XYPLOT (it's in the ADUS lib) which uses GPR for the screen, and then Imagen imPress for hardcopy (sorry, I don't know Postscript, but I'm working on HPGL). Since Imagen doesn't have a cubic spline built into hardware, I copied an algorithm out of "Numerical Analysis", by Burden, Faires, and Reynolds. Unfortunately, the curves don't always look the same. If anyone could tell me where to find the GPR algorithm, I would sell you my first born. Thanks, Scott Ferguson Bucknell University ferguson@bknlvms.bitnet