When the AutoCAD reader encounters an entity type it does not know how to process, it simply sets the entity type of the feature and returns it. If the entity has attribution stored as extended entity data, then these attributes are ignored. Complex entities such as polylines and inserts are exploded and broken into several individual FME features. The AutoCAD DWF reader extracts entities, one at a time, from the entity section of the drawing file and passes them on to the rest of the FME for processing. For general AutoCAD DWG/DXF information and AutoCAD feature types supported by FME, please refer to the Autodesk AutoCAD DWG/DXF Reader/Writer. This chapter contains information related to the AutoCAD DWF reader/writer. Currently the DWF reader and writer can read and write sheets and models from two-dimensional (2D) DWF files. These are read separately by the AutoCAD DWF reader and writer. DWG/DXF files are read by the AutoCAD DWG/DXF Reader/Writer.ĭWF files are handled seamlessly but internally they undergo a different series of translation processes. Logically, both DWG and DXF files are identical and, therefore, FME treats both file types in the same manner. DWF (drawing web format) files, which are binary files of reduced size and functionality intended for display on limited-bandwidth mediums such as the Internet.DWG (drawing) files, which are binary and support the most entity types, and.DXF (drawing exchange format) files, which are large ASCII files,.There are three supported formats used by AutoCAD:

Note: Throughout this chapter, the AutoCAD file is referred to as a drawing file rather than a DWF file. This chapter assumes familiarity with AutoCAD-compatible systems and the entities (features) that are manipulated within these systems.

When AutoCAD data is output, header information may be copied from a supplied template, or prototype, file. FME also provides support for reading and writing AutoCAD DWF files up to and including version 6.0. AutoCAD drawing files consist of drawing settings and configuration, as well as a series of entities, or graphic elements, organized into layers.įME provides broad support for many AutoCAD entity types and options and for reading and writing AutoCAD DWG and DXF files with versions up to and including 2010. The AutoCAD ® DWF Reader/Writer enables FME to read and write files used by Autodesk ® AutoCAD and compatible systems.

Dwf reader