Computer Graphics Metafile

Short description: Image file format family

Computer Graphics MetafileFilename extension| `.cgm`

|

Internet media type| `image/cgm[1]`
Developed by| ANSI, ISO/IEC, W3C
Initial release| 1986; 40 years ago (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]

## Contents

* 1 Overview
* 2 History
* 3 Further reading
* 4 See also
* 5 References
* 6 External links
* 6.1 General
* 6.2 Standards
* 6.3 Other

## Overview

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.

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 (GKS) 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It has been adopted to some extent in the areas of technical illustration and professional design, but has largely been superseded by formats such as SVG and DXF.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.

## History

* 1986 – ANSI X3 122-1986 (ANSI X3 committee)
* 1987 – ISO 8632-1987 (ISO)
* 1991 – ANSI/ISO 8632-1987 (ANSI and ISO)
* 1992 – ISO 8632:1992, a.k.a. CGM:1992 (ISO)
* 1999 – ISO/IEC 8632:1999, 2nd Edition (ISO/IEC JTC1/SC24)
* December 17, 2001 – WebCGM (W3C)
* January 30, 2007 – WebCGM 2.0 (W3C)
* March 1, 2010 – WebCGM 2.1 (W3C Recommendation)

## Further reading

* Arnold, D.B. and P.R. Bono, CGM and CGI: Metafile and Interface Standards for Computer Graphics, Springer-Verlag, New York, NY, 1988.
* Henderson, L.R., and Gebhardt, CGM: SGML for Graphics, The Gilbane Report, Fall 1994.
* Henderson, L.R., and A.M. Mumford, The CGM Handbook, Academic Press, San Diego, CA, 1993.
* Bono, P.R., J.L. Encarnacao, L.M. Encarnacao, and W.R. Herzner, PC Graphics With GKS, Prentice-Hall, Englewood Cliffs, NJ, 1990.
* Vaughan Tay (2001) Making It Work, 5th ed

## See also

* Comparison of graphics file formats

## References

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

## External links

### General

* Overview of CGM Standards
* CGM File Format Summary
* WebCGM Resource Page
* Technology Reports: WebCGM
* Use of CGM as a Scalable Graphics Format
* CGM Open - Reference documents & related materials for CGM and WebCGM

### Standards

* WebCGM 1.0, W3C Recommendation, 17 December 2001
* WebCGM 2.0, W3C Recommendation, 30 January 2007
* WebCGM 2.1, W3C Recommendation, 1 March 2010
* ISO/IEC 8632-1:1999 Part 1: Functional specification
* ISO/IEC 8632-1:1999 Part 1: Technical Corrigendum 1
* ISO/IEC 8632-1:1999 Part 1: Technical Corrigendum 2
* ISO/IEC 8632-3:1999 Part 3: Binary encoding
* ISO/IEC 8632-4:1999 Part 4: Clear text encoding

### Other

* WebCGM and SVG: A Comparison
* CGM Examples

* v
* t
* e

List of International Electrotechnical Commission standards

IEC standards|

* IEC 60027
* IEC 60034
* IEC 60038
* IEC 60062
* IEC 60063
* IEC 60068
* IEC 60112
* IEC 60228
* IEC 60269
* IEC 60297
* IEC 60309
* IEC 60320
* IEC 60364
* IEC 60446
* IEC 60559
* IEC 60601
* IEC 60870
* IEC 60870-5
* IEC 60870-6
* IEC 60906-1
* IEC 60908
* IEC 60929
* IEC 60958
* AES3
* S/PDIF
* IEC 61030
* IEC 61131
* IEC 61131-3
* IEC 61158
* IEC 61162
* IEC 61334
* IEC 61346
* IEC 61355
* IEC 61360
* IEC 61400
* IEC 61499
* IEC 61508
* IEC 61511
* IEC 61850
* IEC 61851
* IEC 61883
* IEC 61960
* IEC 61968
* IEC 61970
* IEC 62014-4
* IEC 62056
* IEC 62061
* IEC 62196
* IEC 62262
* IEC 62264
* IEC 62304
* IEC 62325
* IEC 62351
* IEC 62365
* IEC 62366
* IEC 62379
* IEC 62386
* IEC 62455
* IEC 62680
* IEC 62682
* IEC 62700

ISO/IEC standards|

* ISO/IEC 646
* ISO/IEC 2022
* ISO/IEC 4909
* ISO/IEC 5218
* ISO/IEC 6429
* ISO/IEC 6523
* ISO/IEC 7810
* ISO/IEC 7811
* ISO/IEC 7812
* ISO/IEC 7813
* ISO/IEC 7816
* ISO/IEC 7942
* ISO/IEC 8613
* ISO/IEC 8632
* ISO/IEC 8652
* ISO/IEC 8859
* ISO/IEC 9126
* ISO/IEC 9293
* ISO/IEC 9592
* ISO/IEC 9593
* ISO/IEC 9899
* ISO/IEC 9945
* ISO/IEC 9995
* ISO/IEC 10021
* ISO/IEC 10116
* ISO/IEC 10165
* ISO/IEC 10179
* ISO/IEC 10646
* ISO/IEC 10967
* ISO/IEC 11172
* ISO/IEC 11179
* ISO/IEC 11404
* ISO/IEC 11544
* ISO/IEC 11801
* ISO/IEC 12207
* ISO/IEC 13250
* ISO/IEC 13346
* ISO/IEC 13522-5
* ISO/IEC 13568
* ISO/IEC 13818
* ISO/IEC 14443
* ISO/IEC 14496
* ISO/IEC 14882
* ISO/IEC 15288
* ISO/IEC 15291
* ISO/IEC 15408
* ISO/IEC 15444
* ISO/IEC 15445
* ISO/IEC 15504
* ISO/IEC 15511
* ISO/IEC 15693
* ISO/IEC 15897
* ISO/IEC 15938
* ISO/IEC 16262
* ISO/IEC 17024
* ISO/IEC 17025
* ISO/IEC 18000
* ISO/IEC 18004
* ISO/IEC 18014
* ISO/IEC 19752
* ISO/IEC 19757
* ISO/IEC 19770
* ISO/IEC 19788
* ISO/IEC 20000
* ISO/IEC 21000
* ISO/IEC 21827
* ISO/IEC 23000
* ISO/IEC 23003
* ISO/IEC 23008
* ISO/IEC 23270
* ISO/IEC 23360
* ISO/IEC 24707
* ISO/IEC 24727
* ISO/IEC 24744
* ISO/IEC 24752
* ISO/IEC 26300
* ISO/IEC 27000
* ISO/IEC 27000-series
* ISO/IEC 27002
* ISO/IEC 27040
* ISO/IEC 29119
* ISO/IEC 33001
* ISO/IEC 38500
* ISO/IEC 42010
* ISO/IEC 80000

Related|

* International Electrotechnical Commission

* v
* t
* e

Vector graphics markup languages and file formats

By type|

| 2D|

* Asymptote
* CGM
* DrawingML
* Graphics Layout Engine
* GeoGebra
* HVIF
* MetaPost
* PGF/TikZ
* PGML
* PSTricks
* Remote Imaging Protocol
* SVG
* SWF
* VML
* WMF
* EMF
* XAML
* Xar

|

3D|

* 3DMLW
* 3DXML
* Asymptote
* COLLADA
* DWF
* GeoGebra
* IGES
* JT
* OpenGEX
* PRC
* STEP
* STL
* U3D
* VRML
* X3D
* XAML
* XVL
* xVRML

See also|

* Web3D
* Web3D Consortium
* Linden Scripting Language
* Scene description language

* v
* t
* e

ISO standards by standard number

List of ISO standards / ISO romanizations / IEC standards

1–9999|

* 1
* 2
* 3
* 4
* 5
* 6
* 7
* 9
* 16
* 17
* 31
* -0
* -1
* -2
* -3
* -4
* -5
* -6
* -7
* -8
* -9
* -10
* -11
* -12
* -13
* 128
* 216
* 217
* 226
* 228
* 233
* 259
* 269
* 302
* 306
* 361
* 428
* 500
* 518
* 519
* 639
* -1
* -2
* -3
* -5
* -6
* 646
* 657
* 668
* 690
* 704
* 732
* 764
* 838
* 843
* 860
* 898
* 965
* 999
* 1000
* 1004
* 1007
* 1073-1
* 1155
* 1413
* 1538
* 1629
* 1745
* 1989
* 2014
* 2015
* 2022
* 2033
* 2047
* 2108
* 2145
* 2146
* 2240
* 2281
* 2533
* 2709
* 2711
* 2720
* 2788
* 2848
* 2852
* 3029
* 3103
* 3166
* -1
* -2
* -3
* 3297
* 3307
* 3601
* 3602
* 3864
* 3901
* 3950
* 3977
* 4031
* 4157
* 4165
* 4217
* 4909
* 5218
* 5426
* 5427
* 5428
* 5725
* 5775
* 5776
* 5800
* 5807
* 5964
* 6166
* 6344
* 6346
* 6385
* 6425
* 6429
* 6438
* 6523
* 6709
* 6943
* 7001
* 7002
* 7010
* 7027
* 7064
* 7098
* 7185
* 7200
* 7498
* -1
* 7637
* 7736
* 7810
* 7811
* 7812
* 7813
* 7816
* 7942
* 8000
* 8093
* 8178
* 8217
* 8373
* 8501-1
* 8571
* 8583
* 8601
* 8613
* 8632
* 8651
* 8652
* 8691
* 8805/8806
* 8807
* 8820-5
* 8859
* -1
* -2
* -3
* -4
* -5
* -6
* -7
* -8
* -8-I
* -9
* -10
* -11
* -12
* -13
* -14
* -15
* -16
* 8879
* 9000/9001
* 9036
* 9075
* 9126
* 9141
* 9227
* 9241
* 9293
* 9314
* 9362
* 9407
* 9506
* 9529
* 9564
* 9592/9593
* 9594
* 9660
* 9797-1
* 9897
* 9899
* 9945
* 9984
* 9985
* 9995

10000–19999|

* 10005
* 10006
* 10007
* 10116
* 10118-3
* 10160
* 10161
* 10165
* 10179
* 10206
* 10218
* 10303
* -11
* -21
* -22
* -28
* -238
* 10383
* 10487
* 10585
* 10589
* 10646
* 10664
* 10746
* 10861
* 10957
* 10962
* 10967
* 11073
* 11170
* 11179
* 11404
* 11544
* 11783
* 11784
* 11785
* 11801
* 11898
* 11940 (-2)
* 11941
* 11941 (TR)
* 11992
* 12006
* 12182
* 12207
* 12234-2
* 13211
* -1
* -2
* 13216
* 13250
* 13399
* 13406-2
* 13450
* 13485
* 13490
* 13567
* 13568
* 13584
* 13616
* 14000
* 14031
* 14224
* 14289
* 14396
* 14443
* 14496
* -2
* -3
* -6
* -10
* -11
* -12
* -14
* -17
* -20
* 14644
* 14649
* 14651
* 14698
* 14750
* 14764
* 14882
* 14971
* 15022
* 15189
* 15288
* 15291
* 15292
* 15398
* 15408
* 15444
* -3
* 15445
* 15438
* 15504
* 15511
* 15686
* 15693
* 15706
* -2
* 15707
* 15897
* 15919
* 15924
* 15926
* 15926 WIP
* 15930
* 16023
* 16262
* 16355-1
* 16612-2
* 16750
* 16949 (TS)
* 17024
* 17025
* 17100
* 17203
* 17369
* 17442
* 17799
* 18000
* 18004
* 18014
* 18245
* 18629
* 18916
* 19005
* 19011
* 19092 (-1
* -2)
* 19114
* 19115
* 19125
* 19136
* 19407
* 19439
* 19500
* 19501
* 19502
* 19503
* 19505
* 19506
* 19507
* 19508
* 19509
* 19510
* 19600
* 19752
* 19757
* 19770
* 19775-1
* 19794-5
* 19831

20000+|

* 20000
* 20022
* 20121
* 20400
* 21000
* 21047
* 21500
* 21827:2002
* 22000
* 23270
* 23271
* 23360
* 24517
* 24613
* 24617
* 24707
* 25178
* 25964
* 26000
* 26262
* 26300
* 26324
* 27000 series
* 27000
* 27001
* 27002
* 27006
* 27729
* 28000
* 29110
* 29148
* 29199-2
* 29500
* 30170
* 31000
* 32000
* 37001
* 38500
* 40500
* 42010
* 45001
* 50001
* 55000
* 80000
* -1
* -2
* -3

* Category

* v
* t
* e

Graphics file formats

Raster|

* ANI
* ANIM
* APNG
* ART
* BMP
* BPG
* BSAVE
* CAL
* CIN
* CPC
* CPT
* DDS
* DPX
* ECW
* EXR
* FITS
* FLIC
* FLIF
* FPX
* GIF
* HDRi
* HEVC
* ICER
* ICNS
* ICO / CUR
* ICS
* ILBM
* JBIG
* JBIG2
* JNG
* JPEG
* JPEG-LS
* JPEG 2000
* JPEG XR
* JPEG XT
* JPEG-HDR
* KRA
* MNG
* MIFF
* NRRD
* PAM
* PBM / PGM / PPM / PNM
* PCX
* PGF
* PICtor
* PNG
* PSD / PSB
* PSP
* QTVR
* RAS
* RGBE
* Logluv TIFF
* SGI
* TGA
* TIFF
* TIFF/EP
* TIFF/IT
* UFO/ UFP
* WBMP
* WebP
* XBM
* XCF
* XPM
* XWD

Raw|

* CIFF
* DNG

Vector|

* AI
* CDR
* CGM
* DXF
* EVA
* EMF
* Gerber
* HVIF
* IGES
* PGML
* SVG
* VML
* WMF
* Xar

Compound|

* CDF
* DjVu
* EPS
* PDF
* PICT
* PS
* SWF
* XAML

Metadata|

* Exchangeable image file format (Exif)
* Extensible Metadata Platform (XMP)

* Category
* Comparison

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