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DXF was introduced in December 1982 as part of AutoCAD 1.0, and was intended to provide an exact representation of the data in the AutoCAD native file format, DWG (Drawing). For many years, Autodesk did not publish specifications, making correct creation of DXF files difficult. Autodesk now publishes the incomplete [3] DXF specifications online.
The DXF is primarily 2D-based and its format is a tagged data representation of all the information contained in an AutoCAD drawing file, which means that each data element in the file is preceded by an integer number that is called a group code indicating the type of following data element.
The LibreDWG project has resumed active development, including the addition of more recent .dwg and .dxf formats with version 0.5 in June of 2018. [12] The most recent release as of November 2020, version 0.12.5 includes read support for all DWG formats r13+, write support for r2000 DWG and read/write support for all r13+ DXF versions. [ 13 ]
The table below provides an overview of notable computer-aided design (CAD) software. It does not judge power, ease of use, or other user-experience aspects. The table does not include software that is still in development (beta software).
LibreCAD is a computer-aided design (CAD) application for 2D design. It is free and open-source, and available for Unix/Linux, macOS, and Windows operating systems.. Most of the interface and handle concepts are analogous to AutoCAD, making it easier to use for users with experience in this type of commercial CAD application.
FreeCAD is a free and open-source application that can work with the DWG files by using the proprietary ODA File Converter for .dwg and .dxf files from the Open Design Alliance (ODA). [55] The ODA also provides a freeware stand-alone viewer for .dwg and .dgn files, ODA Drawings Explorer, which runs on Windows, Linux, and Mac OS X.
DWG 2010 file format introduced. Parametrics introduced. Mesh 3D solid modeling was introduced. PDF underlays. Both 32-bit and 64-bit versions of AutoCAD 2010 and AutoCAD LT 2010 are compatible with and supported under Microsoft Windows 7. 2011 18.1 March 25, 2010 25 Surface modeling, surface analysis, and object transparency introduced.
AutoCAD is a 2D and 3D computer-aided design (CAD) software application developed by Autodesk. [1] It was first released in December 1982 for the CP/M and IBM PC platforms as a desktop app running on microcomputers with internal graphics controllers. [2]