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Application module:
Colour |
ISO/TS 10303-1002:2014-02(E)
© ISO
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This clause specifies the information requirements for the
Colour
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
Colour schema.
EXPRESS specification:
*)
SCHEMA Colour_arm;
(*
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.
A Colour is a name for a property of reflecting light at a particular wavelength.
EXPRESS specification:
*)
ENTITY Colour;
name : STRING;
END_ENTITY;
(*
Attribute definitions:
name:
the name specifies the word or group of words by which the
Colour
is known.
An Externally_defined_colour is a type of
Colour
that has its definition established and maintained by a source outside of ISO 10303.
EXPRESS specification:
*)
ENTITY Externally_defined_colour
SUBTYPE OF (Colour);
source : STRING;
END_ENTITY;
(*
Attribute definitions:
source:
the source specifies the identification of the organization responsible for the
Colour
definition.
A Pre_defined_colour is a type of
Colour
that has its definition established and maintained in the
Colour module.
EXPRESS specification:
*)
ENTITY Pre_defined_colour
SUBTYPE OF (Colour);
WHERE
WR1: SELF.name IN ['red', 'green', 'blue', 'yellow', 'magenta', 'cyan', 'black', 'white'];
END_ENTITY;
(*
Formal propositions:
WR1:
The Pre_defined_colour shall be red, green, blue, yellow, magenta, cyan, black, white.
A User_defined_colour is a type of
Colour
that has its definition established without referencing any standard.
EXPRESS specification:
*)
ENTITY User_defined_colour
SUBTYPE OF (Colour);
red : REAL;
green : REAL;
blue : REAL;
WHERE
WR1: {0.0 <= red <= 1.0};
WR2: {0.0 <= green <= 1.0};
WR3: {0.0 <= blue <= 1.0};
END_ENTITY;
(*
Attribute definitions:
red:
the intensity of the red
Colour
component.
green:
the intensity of the green
Colour
component.
blue:
the intensity of the blue
Colour
component.
Formal propositions:
WR1:
The intensity of the red component shall be a real number between 0.0 and 1.0., inclusive.
WR2:
The intensity of the blue component shall be a real number between 0.0 and 1.0., inclusive.
WR3:
The intensity of the green component shall be a real number between 0.0 and 1.0, inclusive.
*)
END_SCHEMA; -- Colour_arm
(*
© ISO 2014 — All rights reserved
