Preserve Original Layers for Land Desktop Points

Convert Land Desktop Points


You have a Land Desktop drawing containing points.  You want to convert the points to Civil 3D points.  You also want to keep those points on their original layers.  When you convert the points the Civil 3D points are all on layer V-NODE.  How do you keep the original layers?

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Civil 3D Installation Tips

Civil 3d installation help and product documentation in web, pdf, and video formats.

Autodesk has posted YouTube videos on installing Civil 3D.  It covers both Single User Stand-Alone licensed and Network licensed versions of Civil 3D.  Links to Installation documenation for Civil 3D 2011  is at the bottom of this post.

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Object enabler for Land Desktop Objects in Civil 3D

Having trouble viewing Land Desktop Contours in Civil 3D?  Visit Autodesk’s object enabler assistant web page.

From the AutoCAD Civil 3D 2010 User Documentation…
Opening a Land Desktop Drawing

Land Desktop data is not automatically converted to Civil 3D objects
Geometric data, such as contours, quick sections, grading objects, and curve text, are displayed in AutoCAD Civil 3D as Land Desktop objects. For more information, see the Civil Object Enabler Help

Civil 3D cannot read the LDT Contour data directly

AECExportToAutoCAD Creates Plines with elevations

see also
Using the Object Enabler
The Object Enabler is available on the AutoCAD Civil 3D installation CD and on the Autodesk web site at

see also
Drawing Sharing Command Reference in the Civil 3d help file.  It lists all the commands such as ExportToAutoCAD2010 and each command’s description.

If you need a specific file version and you are running just AutoCAD there is -AECEXPORTTOAUTOCAD2000 or -AECECPORTTOAUTOCAD2004 or eTransmit with the option to explode AEC objects will give you the same results.

Using -PURGE (the command line version of PURGE) and choosing RegApps option will also clean out unnecessary Registered Applications that may cause stability problems with your drawing.

Thanks to Matt W and R. Robert Bell for their discussion group posts which provided content for this article.

Civil 3D Performance – OS and hardware tips included

Brian Kling from Autodesk describes the hardware, software, operating system characteristics that affect Civil 3D performance.  This was published in 2009 so it addresses Civil 3d 2010.  Civil 3d 2010 is only available as a 32bit application.  Civil 3d 2011 is both 32bit and 64bit compatible.

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