Method

When importing a DXF into the Design Database CAD Input module, vectors from the original drawing are missing.

In this example, we would expect to see the full drawing:


The vectors for all the external surfaces are missing:

Method

This is due to polyline information for the original CAD drawing being stored in an Xref. Design Database doesn't consider Xref's so before the DXF is created you will need to:

• In MicroStation - Merge the reference
  (From the reference dialog >Tools > Merge into master > Follow the prompts)
    
• In AutoCAD - Bind (or Explode) the Xref
  (Ctrl+Right Click on the Xref > Xref Tools > Bind > To Original Layers)
  
  
• In DraftSight - Merge the Xref
  (Tools -> References Manager)

and from there you should be able to generate a complete DXF file.