Autodesk Civil 3d Free Download

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How to create a surface in Civil 3D based on AutoCAD points.
Civil 3D requires COGO points for the surface creation.

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In order to create a Civil 3D surface from AutoCAD Points, convert them to COGO points first:.

From the ribbon, go to Home > Create Ground Data menu, expand the Points dropdown and select Convert AutoCAD Points.

See Also:

Select the points on the screen to create COGO points. Set the Prompt For Descriptions option to Automatic. Home > Create Ground Data menu, select Create Surface. Set the desired settings and click OK to create an empty surface. Expand the Surface node in Prospector. Right click Point Groups and select Add.

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In the Point Groups dialog box, select the group that contains the points created in step 2.