This routine allows you to add the distances of all the lines that are contained in the layer of the object you select. How does the AutoLISP routine in AutoCAD work? Note: If you do not select a layer, the surface is placed on the current layer. The contours can be generated by a DEM (Digital Elevation Model), TIN (Triangular Irregular Network) or a surface using different software such as ArcGIS. For more information about layers, see Object Layer dialog box. By reading contour lines, one can measure the steepness of a hill, the height of a mountain, and even the depth of a lake or Ocean. In the Create Surface dialog box, in the Type list, select TIN Surface.
How to create a tin surface in Civil 3D?Ĭlick Home tab Create Ground Data panel Surfaces drop-down Create Surface Find. How to create a civil 3D surface in Autodesk? An alternate solution is to use attribute extraction to output elevation data as a text file. Then one just needs to use Civil 3D to create Civil 3D points from the AutoCAD points. The AutoLISP program I wrote prompts the user to select the blocks, and it will create AutoCAD points at the elevation given by the elevation attribute. The labels are masked and are placed in the same layer of the source polyline but suffixed with '-LABL'. This tool captures the polyline elevations and place them as contour labels.