file graphics/links.html for related resources file graphics/haines for database constructor programs for testing ray tracer efficiency by Eric Haines file graphics/rainbow.c for equally spaced colors, primarily for level plots by Eric Grosse ref "Automatic Choice of Colors for Level Plots", AT&T Bell Labs, Murray Hill NJ 07974 file graphics/hotiron.c for sample driver for rainbow, also defining "hot iron" and "zebra" by Eric Grosse file graphics/tk_colorscale.c for another sample driver, useful with Tcl/Tk by Eric Grosse file graphics/cie.c for CIE 1931 colour matching functions by Tom Duff file graphics/conic by J. Hu & T. Pavlidis ref "Function Plotting using Conic Splines," IEEE CGNA, January 1991. for adaptive fitting of a function using relatively few conic segments file graphics/xfarbe.taz.uu for area filled, labelled contour plot of grid data for X displays and PostScript by A. Preusser alg Akima bicubic size 336 kB file graphics/video.signals for notes on video signal formats by Tom Duff file graphics/plotterf90.tgz for Fortran90 wrapper for Postscript line drawing by Masao Kodama .