Powered by
Share this page on
Article provided by Wikipedia

Computer Graphics Metafile
"Filename extension .cgm
"Internet media type image/cgm[1]
Developed by "ANSI, "ISO/"IEC, "W3C
Initial release 1986
(ANSI X3 122-1986)
Type of format "Vector image format
Extended from "Graphical Kernel System
"Standard "ISO/"IEC 8632
Website ISO/IEC 8632

Computer Graphics Metafile (CGM) is a "free and "open "international standard file format for 2D "vector graphics, "raster graphics, and "text, and is defined by "ISO/"IEC 8632.[2]



All "graphical elements can be specified in a textual "source file that can be compiled into a "binary file or one of two text representations. CGM provides a means of graphics data interchange for computer representation of 2D graphical information independent from any particular application, system, platform, or device. CGM was developed by W3C in 1999. As a "metafile, i.e., a file containing information that describes or specifies another file, the CGM format has numerous elements to provide functions and to represent entities, so that a wide range of graphical information and geometric primitives can be accommodated. Rather than establish an explicit "graphics file format, CGM contains the instructions and data for reconstructing graphical components to render an image using an object-oriented approach.

Although CGM is not widely supported for web pages and has been supplanted by other formats in the graphic arts, it is still prevalent in engineering, aviation, and other technical applications.

The initial CGM implementation was effectively a streamed representation of a sequence of "Graphical Kernel System primitive operations. It has been adopted to some extent in the areas of "technical illustration and professional "design, but has largely been superseded by formats such as "SVG and "DXF.

The "World Wide Web Consortium has developed WebCGM, a profile of CGM intended for the use of CGM on the Web.


Further reading[edit]

See also[edit]


  1. ^ IANA Image Media Types
  2. ^ ISO/IEC 8632

External links[edit]




) ) WikipediaAudio is not affiliated with Wikipedia or the WikiMedia Foundation.