BS ISO/IEC 7942-2:1997

Foreword
Introduction
1 Scope
2 Normative references
3 Definitions
4 Concepts
    4.1 The structure of a GKS-94 NDC metafile
    4.2 Metafile elements
    4.3 Delimiter elements
    4.4 Metafile descriptor elements
          4.4.1 Elements used
          4.4.2 Functional capability
          4.4.3 NDC-SET
    4.5 Control elements
    4.6 Graphical primitive elements
    4.7 Attribute elements
    4.8 Application structure elements
    4.9 Metafile states
5 Abstract specification of new elements
    5.1 Data type definitions and abbreviations
    5.2 Delimiter elements
    5.3 Metafile descriptor elements
    5.4 Control elements
    5.5 Graphical primitive elements
    5.6 Attribute elements
    5.7 Metafile defaults
6 Mapping from NDC picture to NDC metafile
    6.1 Introduction
    6.2 Output primitives
          6.2.1 SET OF POLYLINE
          6.2.2 SET OF NURB
          6.2.3 SET OF CONIC SECTION
          6.2.4 POLYMARKER
          6.2.5 SET OF FILL AREA
          6.2.6 SET OF ELLIPTIC SECTOR
          6.2.7 SET OF ELLIPTIC SEGMENT
          6.2.8 SET OF ELLIPTIC DISC
          6.2.9 SET OF CLOSED NURB
          6.2.10 TEXT
          6.2.11 CELL ARRAY
          6.2.12 DESIGN PRIMITIVE
          6.2.13 GENERALIZED DRAWING PRIMITIVE
    6.3 Output attributes
          6.3.1 SCISSOR SET
          6.3.2 TEXT UP VECTOR and TEXT SKEW ANGLE
          6.3.3 CHARACTER FONT AND PRECISION
          6.3.4 COLOUR SPECIFIER
7 The Character Encoding of the GKS-94 NDC Metafile
    7.1 Notational conventions
    7.2 Method of encoding opcodes
          7.2.1 Introduction
    7.3 Method of encoding parameters
    7.4 Representation of new elements
          7.4.1 Introduction
          7.4.2 Delimiter elements
          7.4.3 Metafile descriptor elements
          7.4.4 Control elements
          7.4.5 Graphical primitive elements
          7.4.6 Attribute elements
          7.4.7 Application structure elements
8 The Binary Encoding of the GKS-94 NDC Metafile
    8.1 Overall structure
    8.2 Primitive data forms
    8.3 Representation of abstract parameter types
    8.4 Representation of each element
          8.4.1 Introduction
          8.4.2 Delimiter elements
          8.4.3 Metafile descriptor elements
          8.4.4 Control elements
          8.4.5 Graphical primitive elements
          8.4.6 Attribute elements
          8.4.7 Structure attribute elements
9 The Clear Text Encoding of the GKS-94 NDC Metafile
    9.1 Notational conventions
    9.2 Encoding parameter types
    9.3 Forming names
          9.3.1 Introduction
          9.3.2 Words deleted
          9.3.3 Words used unabbreviated
          9.3.4 Abbreviations
          9.3.5 The derived names of new elements
    9.4 Encoding the NDC Metafile elements
          9.4.1 Introduction
          9.4.2 Encoding delimiter elements
          9.4.3 Encoding metafile descriptor elements
          9.4.4 Encoding control elements
          9.4.5 Encoding graphical primitive elements
          9.4.6 Encoding attribute elements
          9.4.7 Encoding of application structure elements
A Formal grammar
    A.1 Introduction
    A.2 Notation
    A.3 Detailed grammar
          A.3.1 Metafile structure
          A.3.2 Metafile descriptor elements
          A.3.3 Picture descriptor elements
          A.3.4 Control elements
          A.3.5 Graphical elements
          A.3.6 Attribute elements
          A.3.7 Terminal symbols
B New element list
    B.1 Introduction
    B.2 Delimiter elements
    B.3 Metafile descriptor elements
    B.4 Control elements
    B.5 Graphical primitive elements
    B.6 Attribute elements

Gives a file format and encodings for storing and retrieving GKS-94 Normalized Device Coordinate (NDC) pictures, being an extension of the Computer Graphics Metafile, Version 4 specified by ISO/IEC 8632 1991/Amd.2:1995 (all parts).

This part of ISO/IEC7942 provides a file format and encodings for the storage and retrieval of GKS-94 Normalized Device Coordinate (NDC) pictures. It is an extension of the Computer Graphics Metafile, Version 4 defined by ISO/IEC8632:1992/Amd.2: 1995 (all parts).