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Erschienen in:
1988 | OriginalPaper | Buchkapitel
CGM Encodings
verfasst von : Dr. David B. Arnold, Dr. Peter R. Bono
Erschienen in: CGM and CGI
Verlag: Springer Berlin Heidelberg
Enthalten in: Professional Book Archive
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The CGM standard consists of four parts: a Functional Description (Part 1), which describes the semantics of the CGM as explained in the previous chapter, and three standardized encodings of the CGM, which contain syntactic information only. These encodings are: the Character Encoding (Part 2), which uses ASCII bytes, including control characters, to represent the element codes and parameters;the Binary Encoding (Part 3), which uses internally formatted binary numbers to represent the data; andthe Clear Text Encoding (Part 4), which uses only the 94 printing characters from the ISO 646 7-bit code table to represent the data.