I am needing a lisp routine that will interpolate elevation heights of contours
by entering the height on the first low contour pick point, then the next higher contour and then select a point between
where the routine will calculate by interpolation the relative height at that point as a percentage of the distance
between the contours multiplied by the height difference.
Hopefully I have explained it correctly.
Then want to put that figure in a table of values.
Have thought about selecting the text label of the low/high contour but would be difficult I think for this routine given shape of contours and inter point selected.
Kind Regards,
John
