contour labelling [was "Re: [R] image ()"]

Once the trianglation was produced it would be just a minor change in
the present "persp" function to plot it.  The algorithm I use is to
sort the facets by depth and then to plot them, back to front.  This
works just as well for triangular facets as rectangular ones.

Great!

If you'd care to define some data structures (or better yet a class)
which will hold a desciption of the triangulation, I can have my student
tweak the present code to display the structure.

Sorry to be such an idiot but I'm afraid that's beyond me.
Should I try to figure out the output of akima, then tell you what I find
out? I imagine that would be the input to the triangle version of persp.

Thanks very much Ross.

Bill

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