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View Full Version : Net cut and fill for a copied graded region



ctc
2009-09-30, 07:56 PM
So I created a graded region from an existing topography, and in the process Revit demolished the existing topography in the new construction phase, and created a duplicate topography in the new construction phase.

1. Why would there be any non-zero net cut and fill for the new typography that hasn't been changed?

2. If a new subregion is created in the new typography, and the elevation of all topographical points remains the same, why would there be any non-zero net cut and fill for the new subregion?