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Exporting contours from AutoCAD Map 3D

chrisBW22T
Explorer

Exporting contours from AutoCAD Map 3D

chrisBW22T
Explorer
Explorer

Hi,

 

Just to let you know I am a complete novice to AutoCAD Map 3D.

 

I've created a contour layer from an ASC file (UK Environment Agency Lidar), these are polylines and I can see from their feature properties that they have elevation values. 

 

Is there a way I can export these contours to AutoCAD, Revit and/or sketchup. Whenever I export or save as a DWG or DXF the contours are all coming out with a Z value of 0. 

 

Do i somehow need to trabslate the elevation properties to a Z value?

 

Many thanks!

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KMercier_C3D
Advisor
Advisor

If you already have the polylines in your drawing with the elevation properties, one way to generate polylines with the the corrected z value is to use a query which is shown here: https://knowledge.autodesk.com/support/autocad-map-3d/learn-explore/caas/sfdcarticles/sfdcarticles/H... 

 

Alternatively, and potentially more simply, you could create a new surface and Add a DEM File and set the Files of Type to *.asc. 

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Kati Mercier, P.E. | LinkedIn | AutoCAD Civil 3D Certified Professional
Pronouns: She/Her
Co-author of "Mastering AutoCAD Civil 3D 2013"
AU2019 Speaker::: CES321590: Analyze and Revise Existing Subassembly Composer PKT Files for AutoCAD Civil 3D
AU2017 Speaker::: CI125544: Analyze and Devise in Subassembly Composer
AU2012 Speaker::: CI3001: Reverse Engineering with Subassembly Composer for AutoCAD Civil 3D
AU2011 Speaker::: CI4252: Create Subassemblies That Think Outside the Box With Subassembly Composer for AutoCAD® Civil 3D®

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parkr4st
Advisor
Advisor