Application module: Styled curve ISO/TS 10303-1749:2014-02(E)
© ISO

Cover page
Table of contents
Copyright
Foreword
Introduction
1 Scope
2 Normative references
3 Terms, definitions and abbreviated terms
    3.1 Terms and definitions
    3.2 Abbreviated terms

4 Information requirements
   4.1 Required AM ARMs
   4.2 ARM entity definitions
5 Module interpreted model
   5.1 Mapping specification
   5.2 MIM EXPRESS short listing
     5.2.1 MIM entity definitions

A MIM short names
B Information object registration
C ARM EXPRESS-G   EXPRESS-G
D MIM EXPRESS-G   EXPRESS-G
E Computer interpretable listings
F Change history
Bibliography
Index

4 Information requirements

This clause specifies the information requirements for the Styled curve application module. The information requirements are specified as the Application Reference Model (ARM) of this application module.

NOTE 1  A graphical representation of the information requirements is given in Annex C.

NOTE 2  The mapping specification is specified in 5.1. It shows how the information requirements are met by using common resources and constructs defined or imported in the MIM schema of this application module.

This clause defines the information requirements to which implementations shall conform using the EXPRESS language as defined in ISO 10303-11. The following begins the Styled_curve_arm schema and identifies the necessary external references.

EXPRESS specification:

*)
SCHEMA Styled_curve_arm;
(*

4.1 Required AM ARMs

The following EXPRESS interface statements specify the elements imported from the ARMs of other application modules.

EXPRESS specification:

*)
USE FROM Colour_arm;    --  ISO/TS 10303-1002

USE FROM Elemental_geometric_shape_arm;    --  ISO/TS 10303-1004
(*

NOTE 1   The schemas referenced above are specified in the following part of ISO 10303:

Colour_arm ISO/TS 10303-1002
Elemental_geometric_shape_arm ISO/TS 10303-1004

NOTE 2   See Annex C, Figures C.1and C.2 for a graphical representation of this schema.

4.2 ARM entity definitions

This subclause specifies the ARM entities for this module. Each ARM application entity is an atomic element that embodies a unique application concept and contains attributes specifying the data elements of the entity. The ARM entities and definitions are specified below.

4.2.1 Curve_font   EXPRESS-GMapping table

A Curve_font is a shape replicated at a fixed pattern used to render a curve. A Curve_font may be either an Externally_defined_curve_font or a Predefined_curve_font, or an User_defined_curve_font.

EXPRESS specification:

*)
ENTITY Curve_font
  SUPERTYPE OF (ONEOF (Externally_defined_curve_font,
                       Predefined_curve_font,
                       User_defined_curve_font));
  curve_font_name : STRING;
END_ENTITY;
(*

Attribute definitions:

curve_font_name: the word or group of words by which the Curve_font is known.

4.2.2 Curve_font_pattern   EXPRESS-GMapping table

A Curve_font_pattern is a semaphore pattern (on-off) in the appearance of a curve.

EXPRESS specification:

*)
ENTITY Curve_font_pattern;
  on_segment : REAL;
  off_segment : REAL;
END_ENTITY;
(*

Attribute definitions:

on_segment: the numerical length of the drawn segments. A unit shall be associated with the real number.

off_segment: the numerical length of the blank segments. A unit shall be associated with the real number.

4.2.3 Externally_defined_curve_font   EXPRESS-GMapping table

An Externally_defined_curve_font is a type of Curve_font whose definition is outside the scope of this application module. An Externally_defined_curve_font is a curve font that is defined in an external computer interpretable system.

EXPRESS specification:

*)
ENTITY Externally_defined_curve_font
  SUBTYPE OF (Curve_font);
  curve_font_reference : STRING;
END_ENTITY;
(*

Attribute definitions:

curve_font_reference: the identification of the curve font in the external reference.

4.2.4 Predefined_curve_font   EXPRESS-GMapping table

A Predefined_curve_font is a type of Curve_font which is defined in this part of ISO 10303. Since its definition is standard, it is interchanged by name.

Table 1 — Predefined curve font segment lengths

Curve Pattern Name Segment (mm) Space (mm) Segment (mm) Space (mm) Segment (mm) Space (mm) Number of segments
Continuous             0
Dashed 4.0 1.5 2
Chain 7.0 1.0 1.0 1.0 4
Chain double dash 7.0 1.0 1.0 1.0 1.0 1.0 6
Dotted 1.0 1.0         2

EXPRESS specification:

*)
ENTITY Predefined_curve_font
  SUBTYPE OF (Curve_font);
WHERE
  WR1: SELF.curve_font_name IN ['continuous', 'chain', 'chain double dash', 'dashed', 'dotted'];
END_ENTITY;
(*

Formal propositions:

WR1: The curve_font_name of the Predefined_curve_font shall be 'continuous','chain','chain double dash','dashed', or 'dotted'.

4.2.5 Solid_curve_font   EXPRESS-GMapping table

A Solid_curve_font is a type of Predefined_curve_font.

EXPRESS specification:

*)
ENTITY Solid_curve_font
  SUBTYPE OF (Predefined_curve_font);
WHERE
  WR1: SELF.curve_font_name IN ['continuous'];
END_ENTITY;
(*

Formal propositions:

WR1: The curve_font_name shall be 'continuous'.

4.2.6 User_defined_curve_font   EXPRESS-GMapping table

A User_defined_curve_font is a type of Curve_font which is defined withour referencing any standard or convention.

EXPRESS specification:

*)
ENTITY User_defined_curve_font
  SUBTYPE OF (Curve_font);
  pattern : SET[1:?] OF Curve_font_pattern;
  segment_symbol : Geometric_model;
END_ENTITY;
(*

Attribute definitions:

pattern: the set of Curve_font_pattern that define the Curve_font.

segment_symbol: the shape of the drawn portions of the Curve_font_pattern.



*)
END_SCHEMA;  -- Styled_curve_arm
(*

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