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Instructions provided describe how to calculate the volume within a TIN domain.
The volume within a TIN domain can be calculated using the steps below:
1. Use the TIN Domain tool (3D Analyst Tools > From TIN) to generate the border of the TIN.
2. Use the Create TIN tool (3D Analyst Tools > TIN Management) to generate the surface from the border (i.e., the top/bottom TIN).
3. Use the Surface Difference tool (3D Analyst Tools > Terrain and TIN Surface) to calculate the volume between the two TINs. The volume is displayed in the attribute table of the output feature class.
If the border of the TIN has the same elevation, the volume can be directly calculated using the Surface Volume tool (3D Analyst Tools > Functional Surface).