VESTRA DTM: calculation, verification, and analysis

DTM calculation
The objects selected in AutoCAD Civli 3D/Auto CAD, GeoMedia or transferred directly to the DTM via data import undergo triangulation (in accordance with the Delaunay procedure) with an integrated graphical error analysis. 3D lines and curves included in the selection are automatically incorporated as break lines. It goes without saying that it is possible to subsequently integrate points and lines into the model, remove them from the model or swap the edges. Wizards support the calculation of contour lines in any intervals, including annotation, the generation of terrain profiles and quantity calculations. VESTRA calculation results are saved as attributes and can be used for further analysis in AutoCAD Civil 3D/AutoCAD, or GeoMedia.   

Verification and analysis
You can quickly obtain a correct assessment using VESTRA DTM, be it of various planning variants, landfills, soil samples or terrain situations. For example, when run on terrain surveys, the error analysis function lists all irregularities in no time at all, including points that have the same position but different heights, break line intersections and break line points without a height. Errors are highlighted in the diagram and automatically centered. The 3D view allows a visual check, displaying the diagram as an area or wire model. The task of assessing the terrain situation is additionally supported by a function to calculate contour lines and terrain profiles (along a line or alignment). When it comes to analyzing the model, users can also use slope calculations, high/low point calculations and height zone calculations.