library(lattice) pdf("shade-wireframe.pdf") classicShadePalette <- function(irr, ref, height, saturation = .9) { hsv(h = height, s = 1 - saturation * (1 - (1-ref)^0.5), v = irr) } trellis.par.set(shade.colors = list(palette = classicShadePalette)) wireframe(volcano, shade = TRUE) ## Using makeShadePalette() ## matte cm.palette <- makeShadePalette(cm.colors(10), pref = 0.2) trellis.par.set(shade.colors = list(palette = cm.palette)) wireframe(volcano, shade = TRUE) ## glossy cm.palette <- makeShadePalette(cm.colors(10), pref = 1.2) trellis.par.set(shade.colors = list(palette = cm.palette)) wireframe(volcano, shade = TRUE) ygb.palette <- makeShadePalette(rev(hcl.colors(12, "YlGnBu"))) trellis.par.set(shade.colors = list(palette = ygb.palette)) wireframe(volcano, shade = TRUE) dev.off()