DWG Converter

Table of Contents

• Overview
• Scope
• Mapping
  • Import Mapping
• Known Limitations

Overview

DWG_Reader can read files compliant with the DWG formats AutoCAD 2000 - AutoCAD 2002 (AC1015), AutoCAD 2007 (AC1021) - AutoCAD 2018 (AC1032).

Scope

Import
polygonal representations B-Rep representations (stored in ACIS sections) drawings assembly structure names colors and materials

Mapping

Import Mapping

Table below shows how DWG entities are mapped into CAD Exchanger entities after import.

DWG Entity	CAD Exchanger Entity
Block Header	ModelData_Assembly
Insert	ModelData_Instance
3DSolid, 3DFace, Polyline Mesh, SubDMesh, Polyline PFace	ModelData_Part

DWG file may contain multiple geometries inside one "Block Header" entity, in that case all entities will be mapped to single ModelData_Part.

Known Limitations

DWG file may contain only BRep geometry, only mesh geometry, or both. When mixed geometry is used, CAD Exchanger converts it all to BRep, since mixed part definitions can't be represented in ModelData_Model.