Find out more about n4ce Lite
|The DTM is a set of non overlapping triangles created using a modified Delaunay algorithm. The code table can be used to eliminate certain coded points from use in the DTM. If a layer containing points is turned off again these points will not be considered. If the comma codes X (ignore) or Y (2D) are used these negate the use of these points as well. Break lines are assigned to line codes to control forced features.
Groups break the DTM up into zones; for example road, pavement, buildings or named spoil heaps. When viewed in plan or 3D it becomes clear which parts of the model are being represented. In area or volume calculations quantities representing these groups are itemised.
Isopachytes are height difference models generated between two DTMs and are used in volume calculations. Cut and Fill quantities can be clearly seen by setting height shading values appropriately.
n4ce handles volume calculations using a complex prism calculation to a reference surface which could be a mathematically derived surface, or as in the case shown here, another model. Different parts of the model can be isolated using Groups.
A table of results can be added to a drawing which is complimented with a report. Each individual spoil heap volume can be thus identified.