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Draw Road model

Draw 3D solids (NP21 forward)

Answer: From Novapoint 21 the option to draw 3D solids from the draw road model dialog has been removed. Instead the user must produce the 3D solids in CAD when they need them.

The process is a bit cumbersome, but doable as long as AutoCAD manages to recognize the data as watertight.

The computing process in the DWG may take a long time. We recommend starting with a small drawing as a beginning to familiarize yourself with the process.

An example file is provided here.

  1. Publish the road model solids to CAD.
    • Make a plan presentation and publish this to CAD.
    • The solids will be published as Polyface Mesh objects.
  2. Explode the Polyface Mesh to 3D Faces with the EXPLODE-command.
  3. Join the 3D Faces to Surfaces
    • Run CONVTOSURFACE function
  4. Merge the surfaces to a solid
    • Run SURFSCULPT function

The process may not always work, and we have found that it is related to the DWG-format itself.
Try to save the DWG as DXF-R12 (recommended for better results but does not handle big data effectivly) or DXF-2018. Before continuing, reopening the DXF-file in AutoCAD.

Consider to clean up the drawing
* Run QuickSelect and pick away all object types that you don't need.
You may need to split disjointed solids that exists inside one object after running SURFSCULPT.
* Run: SOLIDEDIT > BODY > seParate solids

Last modified: 2019/10/08 23:35 by vn_no_dso
CC Attribution-NoDerivs 3.0 Unported License.