One Triangulation Surface Volumes

This command calculates and reports the volume between a triangulation surface (.tin, .flt) file and a reference. The reference can be either an elevation or the TIN perimeter. The elevation method applies to cases like having a triangulation surface for the bottom of a pond and calculating the water volume to a water elevation. The TIN perimeter method creates a second surface by triangulating the perimeter points of the TIN. This method applies to cases like stockpile volumes where the base of the stockpile is not level and is covered so that the perimeter is the only data available to model the base.

In the Volume Report Options, the Cut and Fill Swell Factors are multiplied by the Cut and Fill volumes for the report. The Report Tons option multiplies the volumes by the specified density to report tons. The Write TIN Difference option creates a new TIN surface of the elevation difference between the triangulation and reference surfaces.

Note: The volume comparison of this routine uses the triangulation surface file as the base surface, and the reference as the finalsurface. So be aware that if your reference is set primarily below the surface defined by the triangulation file, it will report as cut, when in reality you may be filling above the reference to reach the defined surface.

Prompts

Select Triangulation File dialog
Triangulation Volumes options dialog
 Select Inclusion polylines.
Select objects: select inclusion boundary(ies) or Enter for none.
 Select Exclusion polylines.
Select objects: select exclusion boundary(ies) or Enter for none.

Pulldown Menu Location: Surface > Volumes By Triangulation
Keyboard Command: trivol1
Prerequisite: Triangulation (.flt or .tin) file