linear gray colormap
cmap=graycolormap(n)
integer >= 1, the colormap size.
matrix with 3 columns [R,G,B].
[R,G,B]
graycolormap computes a colormap with n gray colors varying linearly from black to white.
graycolormap
n
f = scf(); plot3d1(); f.color_map = graycolormap(32);