- Click Surface Tab
- Click “Compute” button from the Volume group
- To compare surface to surface, select the design DTM in the upper section of the menu.
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Select the natural surface in the next section. This surface should be
- Existing conditions
- Topo survey data
- Original design
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The area of comparison can be selected within the Boundary area of the menu.
- Design DTM Boundary – Restricts the comparison to the common area between the design DTM and the Natural DTM.
- Polygon Boundary – contains comparison within a created boundary.
- After clicking OK, a volume report will be created. This will show the total volume of cut and fill for the two surfaces.