This Natural Regrade drop-down menu command is used to calculate the cut and fill volume difference between the GeoFluvTM design surface in the drawing and another surface, the Comparison Surface. The Comparison Surface is specified on the Output tab. Possible sources for the Comparison Surface may be pre-disturbed, such as the natural landsurface or an earlier reclamation design, or may be disturbed, such as a mine pit or construction site.
If the valley bottom or GeoFluv Boundary polylines have been moved, or any setting in the GeoFluv project has been changed that can affect volumes, then the design surface in the drawing will be out-of-date. The "Draw Design Surface" button must be used to create a new surface in the drawing to reflect the changes.
When the user clicks on the command, a dialog box appears with
the cut and fill required to transform the first surface into the
current design surface (layers GF_Channels and GF_Ridges).
The first surface is the Comparison Surface. The cut and fill are
calculated wherever the two surfaces overlap unless an inclusion
polyline is given in which case the cut and fill are calculated
within the inclusion polyline.
The results are displayed in cubic yards in the English system of
units and cubic meters in the metric system.
Pulldown Menu Location: Natural Regrade
Keyboard Command: gfVolume
Prerequisite: Design geofluv