If you can not use a a non plotting construction line that runs between the
two object's z values, and subtract those values with fields in a dimension
and or text string, the AutoCAD group may be more helpful as stated by the
other good folks on this thread.
Attached are some examples of the labels I was talking about in 2010 format.
Do note that C3D labels do not support 3d/isometric views & if a UCS is
applied, the x,y,z will report values relative to the UCS. In this case, I
believe if you maintain the view & put the coord sys back to world, the
values will report as you expect.
John
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John Mayo, PE
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