I have a 2D histogram being drawn as “surf2”. I would like to overlay lines hugging the
surface, going covering all y at intervals of constant x to give context to the features of the plot.
Essentially, this is somewhat like “surf1” but with lines going only in 1 direction and not every bin.
(I find “surf1” to be too busy for a plot with many bins).
I am able to draw the lines with TPolyLine3D just fine but it looks awful because these
lines are not hidden by the hills and valleys where they should be (like the overlaying grid
behaves for “surf1”). Another way of saying it is that the lines do not “obey” the rules
of 3D viewing.
Perhaps this is the wrong approach, or there is an option I haven’t yet discovered?