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How can I export a contour map from Surfer to a 3D DXF file and display it in AutoCAD in 3D?

To export a 3D DXF file and display the 3D surface in AutoCAD, follow these steps:
  1. Create a contour map by clicking Home | New Map | Contour, selecting your grid file and clicking Open.  The contour map is created. You can select the contour map and adjust any of the properties (such as the contour interval) in the Properties window.
  2. Once the map is the way you want it, select the Contours layer and click Map Tools | Layer Tools | Export Contours.
  3. Give the file a name and choose AutoCAD DXF File format. Specify a location for the file, and click Save. The 3D DXF file is exported and the Z values for the contour lines are saved. 
  4. You can use this DXF file in AutoCAD to create a 3D surface. For example, in AutoCAD 2000 and 2002, you would simply need to open the DXF file and click View | Shade | 3D Wireframe.  This will project a 3D version of the DXF file. You may want to click View | 3D Orbit (AutoCAD 2002) to rotate and tilt the display to a desired angle:

contour map exported to dxf for autocad

 

Updated September 18, 2017

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