Filtering 3D Geometric Data
A 3D DXF file containing faceted solids with a single solid on each layer is imported as a flat assembly with a single faceted component for each solid.
A 3D DXF file containing faceted solids with multiple solids on each layer is imported as an assembly with subassemblies representing the layers containing a part component for each solid on that layer.
You can use the Layer Import Options dialog box to filter faceted data or the faceted solids.
If faceted solids and embedded ACIS data of the imported assembly exist on separate layers, you can set the import status of the layers with faceted data to skip to filter faceted data and import only embedded ACIS data.