How do you extract triangles from the surface in Civil 3D?

You can extract the surface triangles by selecting the surface, then clicking the extract objects command on the ribbon menu. This will bring up a dialog box where you can select which surface objects you would like to extract (triangles) so make sure the triangles are visible within your surface style.

How do you create a triangle from surface area in Civil 3D?


  1. Run the LINEWORKSHRINKWRAP command and select all 3D Faces from which the surface needs to be created. …
  2. From Home ribbon, Create Ground Data click on Surfaces > Create Surface.
  3. In Create Surface dialog name the surface, select Style, rendering material and click OK.

How do you extract points from a surface in Civil 3D?

Select a surface. On the Surface tab, Surface Tools panel, click Extract Objects Find. If more than one surface is available in the drawing, in the Select a Surface dialog box, select the surface from which to extract components.

How do I extract lines from surface?

Extract lines, plines, splines, or arcs from surfaces and the faces of solids in either the U or V directions.

  1. Click Surface tab Curves panel Extract Isolines. …
  2. Select a surface, solid, or face.
  3. Click to extract an isoline curve represented by the preview line.
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How do you remove an edit from a surface?

In Toolspace, on the Prospector tab, expand the surface Definition collection, and right-click the Edits item. Click Delete Line. On the command line, you are prompted to select an edge (line) to remove.

How do I import a surface into Civil 3d?


  1. In the Toolspace / Prospector, select the surface.
  2. Right click on the surface and select export Landxml (alternatively use the LANDXMLOUT command)
  3. In a new drawing, import Landxml (alternatively use the LANDXMLIN command)

How do I extract Isocurves in rhino?

We start extracting Isocurves in the u-direction in RHINO. 1. Click on: “Curve >> Curve from Objects >> Extract Isocurve” 2. At the “Select surface for isocurve extraction:” prompt, choose your surface.

How do you do contours in Civil 3D?

To Add Contour Data to a Surface

  1. In Toolspace, on the Prospector tab, expand the surface Definition collection, right-click Contours, and click Add.
  2. In the Add Contour Data dialog box, enter the contour description in the Description field.