Explicit color for pm3d

[Douglas M. <dou...@gm...>]

Dear Developers,

There's a little discussion going on at the bug request tracker about making
an explicit color column for pm3d. The idea is that rgbimage and "w p lc
var" allow you to color each point with an explicit color, not interpolating
on a palette. Since pm3d offers options like "corner2colors", which tells
pm3d to use a color that is NOT interpolated among nearby points, it seems
reasonable that a pm3d option could be made for explicit colors.

I was wondering what to make of this related paragraph in the documentation:

"Another drawing algorithm, which would draw quadrangles around a given node
by taking corners from averaged (x,y)-coordinates of its surrounding 4 nodes
while using node’s color, could be implemented in the future. This is
already done for drawing images (2D grids) via image and rgbimage styles."

I'd love to hear people's thoughts on the possibility of implementing such a
feature. If not, can anyone suggest another program that does this?

Douglas