Wondering if anybody can help me out. I have two triangulated dtm surfaces for the exact same corridor and I want to identify which is the higher (in elevation) and automatically create shapes/polygons around the areas that area higher in one than the other. Anything Inroads can do or any other third party application that anybody knows about?
Create an ISOPACH surface - the elevations in it represent the difference in elevations in the two surfaces. Use color coded elevations to view the differences graphically. Draw the zero contour - using Hydrology & Hydralics Application Add-ins - Pass Through Contour (key in 0) to draw the boundary between the higher and lower areas.
Charles (Chuck) Rheault CADD Manager
MDOT State Highway Administration
This worked perfectly...thanks!