Computer Graphics Metafile
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CGM is a file format for vector graphics. All graphical elements can be specified in a textual source file that can be compiled into a binary representation.
- http://www.cgmopen.org/webcgm/overview.html
- http://xml.coverpages.org/webCGM.html
- http://www.w3.org/TR/NOTE-cgm-970618.html
Its roots are from area of technical illustration and professional design. But it shares a lot of functionality with other good formats like SVG, VML or DXF.