Quicksurf generates contours or surface meshes for topography starting from x, y, z files, digital elevation models or extracted drawing entities, such as spot elevations or contour polylines. 3D breaklines defining elements such as building pad perimeters, roads or geologic faults may optionally be used. Contours may be based on a TIN, grid or triangulated grid. Contouring directly on the TIN (Triangulated Irregular Network) is common in civil site design. Contouring on the grid allows for smooth curved surfaces between your data points. Contouring on the triangulated grid (unique to Quicksurf) allows both smooth curving surfaces and exact honoring of breaklines. Optional contour line indexing, annotation, hachuring, and color options are available. More about topography.
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