ISO/IEC 9973:1994

Information technology — Computer graphics and image processing — Procedures for registration of graphical items

Specifies procedures to be followed in preparing, maintaining, and publishing a register of identifiers and meanings that, under the direction of ISO/IEC JTC 1/SC 24, are assigned to graphical items. Registration procedures will not assign values of identifiers for graphical items that are defined as being workstation- or implementation-dependent by specific graphics standards. The procedures apply to registration of individual items within classes of graphical items as reserved for registration in the International Standards developed by ISO/IEC JTC 1/SC 24.

Technologies de l'information — Traitement informatisé des graphiques et de l'image — Procédures pour l'enregistrement des items graphiques

General Information

• Status: Withdrawn
• Publication Date: 21-Dec-1994
• Withdrawal Date: 21-Dec-1994
• ICS: 35.140 - Computer graphics
• Technical Committee: ISO/IEC JTC 1/SC 24 - Computer graphics, image processing and environmental data representation
• Drafting Committee: ISO/IEC JTC 1/SC 24 - Computer graphics, image processing and environmental data representation
• Current Stage: 9599 - Withdrawal of International Standard
• Completion Date: 14-Nov-2006

Relations

• Revised: ISO/IEC 9973:2006 - Information technology — Computer graphics, image processing and environmental data representation — Procedures for registration of items
• Effective Date: 15-Apr-2008

Standards Content (Sample)

INTERNATIONAL
lSO/IEC
STANDARD 9973
First edition
1994-l 2-l 5
Information technology - Computer
graphics and image processing -
Procedures for registration of graphical
items
Technologies de /‘information - Traitement informatis6 des graphiques
et de /‘image - Procgdures pour I’enregistrement des items graphiques

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ISO/IEC 9973: 1994(E)
Page
Contents
1
1 Scope .
.......................................................... 2
2 Normative references
......................................................
3 The Registration Authority
....................................
3.1 Appointment of a Registration Authority
...............................................
3.2 Register of graphical items
..........................................
3.3 Initial assignments and additions
3.4 Deletions .
...............................................
3.5 Modifications of proposals
......................................................
3.6 Future standards
.......................................
3.7 Additional Classes of Graphical Items
.........................................................
4 Sponsoring Authorities
.........................................
4.1 Definition of Sponsoring Authority
....................................
4.2 Responsibilities of Sponsoring Authorities
......................................................
4.3 Registration form
Annexes
...................................... 10
A Information needed to submit proposals
............................... 11
B Example forms for proposals and registered items
........................................... 29
C Defined classes of graphical items
.............................................. 30
D Language Binding Guidelines
..................................................... 32
E Encoding Guidelines
0 ISO/IEC 1994
Unless otherwise specified, no part of this publication may be
All rights reserved.
reproduced or utilized in any form or by any means, electronic or mechanical, including
photocopying and microfilm, without permission in writing from the publisher,
ISO/IEC Copyright Office l Case Postale 56 l CH-1211 Geneve 20 0 Switzerland
Printed in Switzerland
ii

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43 ISO/IEC
HSWIEC 9973:1994(E)
Foreword
IS0 (the International Organization for Standardization) and IEC (the Inter-
national Electrotechnical Commission) form the specialized system for worldwide
standardization. National bodies that are members of IS0 or IEC participate in the
development of International Standards through technical committees established
by the respective organization to deal with particular fields of technical activity.
IS0 and IEC technical committees collaborate in fields of mutual interest. Other
international organizations, governmental and non-governmental, in liaison with
IS0 and IEC, also take part in the work.
In the field of information technology, IS0 and IEC have established a joint
technical committee ISO/IEC JTC 1. Draft International Standards adopted by the
joint technical committee are circulated to national bodies for voting. Publication
as an International Standard requires approval by at least 75% of the national
bodies casting a vote.
International Standard ISO/IEC 9973 was prepared by Joint Technical Committee
ISO/IEC JTC 1, Information technology, Subcommittee SC 24, Computer graphics
and image processing.
This first edition cancels and replaces ISOITR 9973: 1990.
Annexes B to E are
Annex A forms an integral part of this International Standard.
for information only.
. . .
111

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0 ISO/IEC
ISO/IEC 9973: 1994 (E)
Introduction
This International Standard has been published to provide a set of procedures for the registration of graphical items. In this
context graphical items refers to all registered graphical items defined within the standards developed by ISO/IEC JTCl/SC24.
These procedures were originally processed by IS0 TC97/SC21/WG2 (now ISO/IEC JTCUSC24) as a Technical Report.
Although it was originally published as a Technical Report because its prompt availability was critical to the utilization of
existing International Standards, it is now recognized that the importance of this material merits its publication as an
International Standard.
Responsibility for preparing standards for interchange of information involving computer graphics is assigned to subcommittee
ISO/IEC .ITCl/SC24 - Computer Graphics and Image Processing.
All proposed and anticipated standards in this area share certain classes of graphical items that are allowed to vary across
implementations of the standard: linetype is an example of such a class. Nevertheless, there is a strong incentive for
implementations using the same graphical items to reference them in the same way. Each standard developed by ISO/IEC
JTC l/SC24, therefore, provides for registration of certain graphical items. For example, in the Graphical Kernel System,
linetype values 1,2,3, and 4 are defined in the International Standard; linetype values 5 and greater are reserved for registration,
and negative values are used for implementation dependent linetypes.
This International Standard specifies procedures to be followed in preparing, maintaining and publishing the ISO/IEC
International Register of Graphical Items, containing the identifiers and meanings assigned to particular items. The purpose
of the register is to inform all concerned of items already registered and of the specific identifiers assigned to them. The
register includes current classes of graphical items and registered graphical items for relevant International Standards developed
by ISO/IEC JTCUSC24. It will be updated as necessary for future computer graphic standards developed by ISO/IEC
JTC llSC24.
Publication of the register promotes compatibility of international information exchange and avoids duplication of effort in
development of application-oriented graphical items. Registration provides identification for a graphical item but should not
be regarded as a standardization procedure. However, as a matter apart from registration, the graphical items may, but need
not, be the subject of an international, national, or other standard. In these cases the register will reference the applicable
standard. When such a standard is prepared subsequent to registration of a graphical item, it would be appropriate for the
registered identifier of the graphical item to be indicated in the standard.
iv

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INTERNATIONAL STANDARD @ ISO/IEC
ISO/IEC 9973:1994(E)
Information technology - Computer graphics and image
processing - Procedures for registration of graphical items
1 Scope
This International Standard specifies procedures to be followed in preparing, maintaining, and publishing a register of identifiers
and meanings that, under the direction of ISO/IEC JTCUSC24, are assigned to graphical items.
Registration procedures will not assign values of identifiers for graphical items that are defined as being workstation- or
implementation-dependent by specific graphics standards. The register of font appearance in the ISO/IEC JTClKC24 register
of graphical items is not intended to address the broader issues of general purpose font registration as provided by ISO/IEC
JTCUSC18. The procedures apply to registration of individual items within classes of graphical items as reserved for
registration in the International Standards developed by ISO/IEC JTCUSC24.

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--
ISO/IEC 9973: 1994 (E) 0 ISO/IEC
Normative references
2
The following standards contain provisions which, through reference in this text, constitute provisions of this International
Standard. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to
agreements based on this International Standard are encouraged to investigate the possibility of applying the most recent editions
of the standards indicated below. Members of IEC and IS0 maintain registers of currently valid International Standards.
Graphical Kernel System (GKS) functional description.
IS0 7942: 1985, Information processing systems - Computer graphics -
Metafile for the storage and transfer of picture description
IS0 8632- 1: 1992, Information technology - Computer graphics -
Part 1: Functional specification.
information -
Metafile for the storage and transfer of picture description
IS0 8632-2:1992, Information technology - Computer graphics -
Part 2: Character encoding.
information -
Metafile for the storage adn transfer of picture description
IS0 8632-3:1992, Information technology - Computer graphics -
Part 3: Binary encoding.
information -
Metafile for the storage and transfer of picture description
IS0 8632-4:1992, Information technology - Computer graphics -
information - Part 4: Clear text encoding.
IS0 8651-1: 1988, Information processing - Computer graphics - Graphical Kernel System (GKS) language bindings - Part I:
FORTRAN.
IS0 8651-2: 1988, Information processing systems - Computer graphics - Graphical Kernel System (GKS) language bindings -
Part 2: Pascal.
IS0 865 l-3: 1988, Information processing systems - Computer graphics - Graphical Kernel System (GKS) language bindings -
Part 3: Ada.
IS0 865 l-4: 1991, Information processing systems - Computer graphics - Graphical Kernel System (GKS) language bindings -
Part 4: C.
Graphical Kernel System 30 (GKS-3D) functional
IS0 8805:1988, Information processing systems - Computer graphics -
description.
ISO/IEC 8806- 1 :-l), Information processing systems - Computer graphics - Graphical Kernel System for Three Dimensions
(GKS-3D) language bindings - Part I: FORTRAN.
ISOIIEC 8806-4: 1991, Information technology - Computer graphics - Graphical Kernel System for Three Dimensions (GKS-3D)
language bindings - Part 4: C.
ISOAEC 9592- 1: 1989 Information processing systems - Computer graphics - Programmer’s Hierarchical Interactive Graphics
System (PHIGS) - Part 1: Functional specification.
ISO/IEC 9592-2: 1989lAmd. 1: 1992, Information processing systems - Computer graphics - Programmer’s Hierarchical
Interactive Graphics System (PHIGS) - Part 2: Archive file format.
ISO/IEC 9592-3: 1989/Amd. 1: 1992, Information processing systems - Computer graphics - Programmer’s Hierarchical
Interactive Graphics System (PHIGS) - Part 3: Clear text encoding of archive file.
ISO/IEC 9592-4: 1992, Information processing systems - Computer graphics - Programmer’s Hierarchical Interactive Graphics
System (PHIGS) - Part 4: Plus Lumiere und Surfaces. PHIGS PLUS.
-‘)To be published

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0 ISO/IEC
ISO/IEC 9973: 1994 (E)
ISO/IEC 9593-l : 1990, Information processing systems -
Computer graphics - Programmer’s Hierarchical Interactive Graphics
System (PHIGS) language bindings - Part 1: FORTRAN.
ISOAEC 9593-3: 1990, Information processing systems - Computer graphics - Programmer’s Hierarchical Interactive Graphics
System (PHIGS) language bindings - Part 3: Ada.
ISO/IEC 9593-4: 1990, Information processing systems - Computer graphics - Programmer 5 Hierarchical Interactive Graphics
System (PHIGS) language bindings - Part 4: C.
Interfacing techniques for dialogues with graphical
ISO/IEC 9636-l : 1991, Information technology - Computer graphics -
Part 1: Overview, profiles and conformance.
devices (CGI) - Functional specification -
ISO/IEC 9636-2: 1991, Information technology - Computer graphics - Interfacing techniques for dialogues with graphical
devices (CGI) - Functional specification - Part 2: Control.
Inter$acing techniques for dialogues with graphical
ISO/IEC 9636-3: 199 1, Information technology - Computer graphics -
devices (CGI) - Functional specification - Part 3: Output.
Inteeacing techniques for dialogues with graphical
ISO/IEC 9636-4: 1991, Information technology - Computer graphics -
devices (CGI) - Functional specification - Part 4: Segments.
Inteflacing techniques for dialogues with graphical
ISOAEC 9636-5: 1991, Information technology - Computer graphics -
devices (CGI) - Functional specification - Part 5: Input and echoing.
ISO/IEC 9636-6: 1991, Information technology - Computer graphics - Interfacing techniques for dialogues with graphical
devices (CGI} - Functional specification - Part 6: Raster.
Inteeacing techniques for dialogues with graphical
ISO/IEC 9637-l: 1994, Information technology - Computer graphics -
Data stream binding - Part I: Character encoding.
devices (CGI} -
Inteeacing techniques for dialogues with graphical
ISODX 9637-2:1994, Information technology - Computer graphics -
Data stream binding - Part 2: Binary encoding.
devices (CGI} -
Computer Graphics Reference Model.
ISO/IEC 11072: 1992, Information technology - Computer graphics -
ISO/IEC Guide 2: 1991, General terms and their definitions concerning standardization and related activities.
ISO/IEC Guide 23:1982, Methods of indicating conformity with standards for third-party certification systems.
ISOAEC Guide 25:1990, General requirements for the competence of calibration and testing laboratories.
ISO/IEC Guide 28: 1982, General rules for a model third-party certification system for products.

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ISO/IEC 9973: 1994 (E) 0 ISO/IEC
3 The Registration Authority
3.1 Appointment of a Registration Authority
A qualified and internationally acceptable body concerned with computer graphics is recommended by ISO/IEC/IEC JTCl/SC24
to ISO/IEC JTCl for acceptance by Council to act as the Registration Authority for the purposes of this International Standard.
Currently, the Registration Authority is the National Institute of Standards and Technology (NIST). An agreement has been
A Registration Information Pack is
signed at a previous time setting terms and conditions between NIST and ISOLIEC.
available from the Registration Authority. The address is:
NIST Registration Authority
National Institute of Standards and Technology
Building 225, Room A266
Gaithersburg, MD 20899
USA
+ 1 301 975 3265
FAX [phone]
3.2 Register of graphical items
The Registration Authority shall maintain a register of identifiers and meanings assigned to graphical items. The contents of
this register shall be available to the public under the terms and conditions set by the Registration Authority. Upon request,
the Registration Authority will distribute an information pack containing a description of the register and how to submit
proposals. Annex A contains the information needed to propose a graphical item for registration. Annex B contains example
Portions of the Register may be obtained by standards developers at no charge under the terms
proposal and register forms.
and conditions set by the Registration Authority.
3.3 Initial assignments and additions
With regard to initial assignment of identifiers and meanings to graphical items and subsequent additions to the register, the
responsibilities of the Registration Authority shall be as follows:
to receive proposals from Sponsoring Authorities (see 4),
a>
to ascertain, by referring proposals to the Secretariat of ISO/IEC JTClKC24 or by a vote within the
b)
subcommittee, whether each proposal should be accepted, accepted subject to amendment, or rejected.
Criteria for rejection of a proposal include:
incomplete or incomprehensible definition of the graphical item,
1)
incorrect or incomplete language binding or data encoding (see Annex D),
2)
existence of an identical item in the register,
3
graphical item class does not exist,
4)
non-applicable to any of the International Standards developed by ISO/IEC JTCl/SC24,
5)
inadequate justification for inclusion in the register.
6)
Voting discrepancies shall be resolved following attempts to meet objections raised by negative votes.
to assign a proposal identifier to each accepted graphical item,
C>
4

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ISOLIEC 9973: 1994 (E)
0 ISO/IEC
to assign a register identifier to each accepted graphical item. The register identifier shall consist of a section
d)
name followed by a unique registration number within the section which is:
the value of the identifier of the graphical item, if this is a number or,
some appropriate number assigned by the Registration Authority, if the value of identifier of
2)
graphical item is n ot a number,
to announce to all Member Bodies, Category A liaison organizations of IS0 and IEC National Committees
and the ISO/IEC JTCUSC24 the graphical items accepted for registration. This is accomplished by sending
the table of contents and a cross reference list matching the proposal number with the registered item,
to inform the appropriate Sponsoring Authority of the results when processing of a proposal has been
fl
completed,
to add new classes of graphical items to the current list of classes of graphical items (see 3.7),
to provide copies of the register and associated documents to members of the public on request,
to distribute the current list of classes of graphical items upon request.

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0 ISO/IEC
ISO/IEC 9973: 1994 (E)
Figure 1 below explains the steps necessary to register a graphical item.
Step 6
d
results of processing (3.3 1)) Step 7
copies requested (3.3h-i))
. Registration
Sponsoring
Authority
Authority
Step 2 refer for Member
Step 6 results of processing (3.3e)
voting results
\
(accep~~t)
Member Bodies,
Liaison Organizations,
,
Secretariat ISO/IEC JTC l/SC 24
(3.3b) enter of delete accepted proposals
Step 3 voting as necessary Step 5
in Register (3.3cd)
REGISTER
Figure 1 - Steps to register a graphical item
Step 1 - A sponsoring authority submits a proposal for a graphical item to be registered to the Registration
Authority, after insuring it is complete,
Step 2 - The Registration Authority forwards this proposal to the SC24 secretariat for member body vote,
Step 3 - SC24 conducts a letter ballot vote,
Step 4 - SC24 processes the results of the letter ballot and decides if the proposal is accepted or rejected,
Step 5 - The register is updated to reflect the results of the letter ballot,
Step 6 - The Registration Authority distributes the results of the votes to the member body, sponsoring
authority, and the liaison organizations of ISO/IEC JTCUSC24,
Step 7 - Copies of the register are available to the public according to the terms and conditions defined by
the Registration Authority.

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0 ISO/IEC
ISO/IEC 9973: 1994 (E)
3.4 Deletions
With regard to deletions, the responsibilities of the Registration Authority shall be as follows:
to receive proposals from the Sponsoring Authorities (see 4),
a>
to inform the Sponsoring Authority that originally submitted the item for registration of the proposed deletion.
b)
Any comments that a Sponsoring Authority may desire to make concerning a proposed deletion shall be
directed to the Secretariat of ISO/IEC JTCl/SC24 for consideration,
to ascertain whether each proposal should be accepted or rejected by referring proposals to the Secretariat
C>
of ISO/IEC JTCUSC24 for a Member Body vote within the subcommittee,
to announce items deleted from the register to all Member Bodies, Category A liaisons of IS0 and IEC
National Committees (identifiers of items that have been deleted shall not be reused),
to inform the Sponsoring Authority of the results when processing of a proposal has been completed.
e>
3.5 Modifications of proposals
Once a proposal for registration of a particular graphical item has been accepted and distributed, no proposals for modification
of that graphical item will be considered. However, proposals for additional language bindings and encodings may be submitted
for inclusion. These proposals are handled the same way as new proposals. The language binding or encoding will be added
to the existing Registered Items without change to the existing information. Requests for clarifications may be submitted by
Sponsoring Authorities to ISOLIEC JTCl/SC24 for approval. Approved clarifications shall be promulgated by the Registration
Authority.
3.6 Future standards
The Registration Authority shall update the register to include relationships to additional standards or parts of standards in the
area of computer graphics developed by the subcommittee.
7

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0 ISO/IEC
ISO/IEC 9973: 1994 (E)
3.7 Additional Classes of Graphical Items
The most recent list of classes of graphical items is maintained
The current set of graphical item classes is listed in Annex C.
by the Registration Authority. Additional classes of graphical items may be added to the register according to Figure 2 below.
Functional
Rapporteur Group
Standards
for Registration
Developers
Step 1 Decideon
New Class
Distribute to WGs and
RequestComments
1
Working Functional
Group on Standards
Registration Working Group
1
Submit New Class of
Step 2 pr0cess
Graphical Item
Comments
PfOpOSd
1
Registration Group Functional Standard
for Registration and Developers
Step ~ZlZn&~24 ,
Step 4 Distribute Accepted
Classes
1
/ \ Distribute
Step 5 Update
(3) (y?)
Figure 2 - Steps to Add a New Class of Graphical Item
Step 1 - The Registration Rapporteur Group, in consultation with the functional standards Working Group,
identifies the need for a new class of registered item. The group produces a document that describes
the new class that it wishes to sponsor and circulates it to the Working Groups of ISOLIEC
JTCUSC24 for comment.
Step 2 - The sponsoring Working Group, in collaboration with the Registration Rapporteur Group, processes
the comments received and forwards the revised proposal to the Secretriat of ISO/IEC JTCUSC24
for an SC24 letter ballot.
Step 3 - The Registration Rapporteur Group, in consultation with the sponsoring Working Group, resolves
any comments submitted with votes.
Step 4 - The Secretariat of ISO/IEC JTCl/SC24 forwards the final proposal to the Registration Authority.
Step 5 - The Registration Authority updates the Register, the Information Pack, and distributes the results to
the public upon request.

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0 ISO/IEC ISO/IEc 9973: 1994 (E)
4 Sponsoring Authorities
4.1 Definition of Sponsoring Authority
Proposals for adding, deleting, or adding language bindings or encodings may be made by the following organizations which,
Standard, are Sponsoring Authorities:
for purposes of this International
any IS0 or IEC Technical Committee or Subcommittee,
a>
any P-member or O-member of ISO/IEC JTCl or ISO/IEC JTCl/SC24,
b)
any international organization having Category A liaison status with ISO/IEC JTCl or ISO/IEC JTCUSC24.
C>
4.2 Responsibilities of Sponsoring Authorities
The responsibilities of Sponsoring Authorities shall be as follows:
to receive proposals concerning graphical items from within their respective countries or organizations,
a)
to explain proposals and to coordinate multiple proposals if desired,
b)
to ensure that all proposals are completed. If a language binding and/or encoding is required, at least one
Cl
language binding and/or data encoding for at least one standard developed by ISO/IEC JTCl/SC24 shall be
included,
to ascertain, by referring proposals to their members for a vote, whether each proposal should be accepted,
d)
accepted subject to amendment, or rejected. Criteria for rejection of a proposal include:
incomplete or incomprehensible definition of the graphical item,
1)
incorrect or incomplete language binding or data encoding information (reference Annex D Language
2)
Binding Guidelines),
existence of an identical item in the register,
3)
graphical item class does not exist,
4)
non-applicable to any of the International Standards developed by ISO/IEC JTCl/SC24,
5)
inadequate justification for inclusion in the register,
to forward to the Registration Authority those proposals that have support of the Sponsoring Authority,
4
to make known within their respective countries or organizations the decisions taken on proposal s as
transmitted to them by the Registration Authority.
4.3 Registration form
Annex A specifies general information necessary to submit a proposal to the Registration Authority. Detailed information for
a particular class may be obtained from the Registration Authority.
Annex B contains example proposals and registration forms.
9

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0 ISO/IEC
ISO/IEC 9973: 1994 (E)
Annex A
(normative)
Information Needed to Submit Proposals
The following information shall be submitted for a proposal of any class of graphical item:
Presentation date of Proposal:
Sponsoring Authority:
Class of Graphical Item:
Name (if appropriate):
Description:
Picture (if appropriate):
Additional Comments:
Justification for Inclusion:
At least one language binding or encoding (if appropriate):
Unique information is necessary for the following classes:
Markertype: Alignment Point:
Prompt & Echo: Input Class:
Data Record Information:
GDP: GDP Identifier:
Escape: Specific Escape Function Identifier (or Escape Identifier):
Error: Message:
Echo Type: Input Class:
Data Record Information
Data Record Information:
Measure Format Identifier:
Reference Geometry Scalars:
Interpolated Interior Style:
Additional Information may be needed. Proposers should contact the Registration Authority at the following address for this
information:
National Institute of Standards and Technology
Computer Systems Laboratory
Graphics Software Group
Building 225, Room A266
Gaithersburg, Maryland 20899
telephone: [phone]
fax: [phone]
U.S.A.
ATTN: Registration Authority
10

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0 ISO/IEC ISO/IEC 9973: 1994 (E)
Annex B
(informative)
Example Forms for Proposals and Registered Items
The following pages contain example proposal and register forms to be used for several classes of graphical items. These
examples are hypothetical and are included for clarification. The “Relationship to Particular Standards” section will be extended
as other computer graphics standards are developed; this extension will be done by the Registration Authority under the
direction of ISO/IEC JTCUSC24.
11

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0 ISO/IEC
ISO/IEC 9973:1994(E)
PROPOSAL FOR REGISTRATION OF GRAPHICAL ITEMS
4
Proposal Number: 1 .
Date of Presentation: 1
Sponsoring Authority: 1
Class of Graphical Item: [ LINETYPE
Additional Comments
Justification for Inclusion
Relationship to
Standards
1) ISO/IEC 7942 : 1985, Information processing systems -
Computer graphics - Graphical Kernel System (GKS) functional
specification - Specifies a registered line type defined in subclause 5.4.1 of IS0 7942.
2) ISO/IEC 8632-l: 1992, Information technology - Computer graphics
- Metafile for the storage and transfer of picture
description information - Part 1: Functional specification (CGM) - Specifies a registered line type defined in subclause 5.7.2 of
IS0 8632-l.
3) ISO/IEC 8805: 1988, Information processing systems - Computer graphics - Graphical Kernel System for 3D (GKS-3D)
functional description - Specifies a registered line type defined in subclause 5.4.1 of IS0 8805.
4) ISO/IEC 9592-l: 1989, Information processing systems -
Computer graphics - Programmer’s Hierarchical Interactive
Graphics System (PHIGS) functional description -
Specifies a registered linet ype defined in subclause 5.4.2 of IS0 9592-l.
5) ISO/IEC 9636: 199 1 Parts I - 6, Information technology - Computer graphics -
Interfacing techniques for dialogues with
graphical devices (CGI) - Functional specification -
Specifies a registered line type defined in subclause 5.3.2 of IS0 9636-3.
12

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ISO/IEC 9973: 1994(E)
o ISO/IEC
PROPOSAL FOR REGISTRATION OF GRAPHICAL ITEMS
\
Proposal Number: 1 1
Date of Presentation: 1 3 June 1986
Sponsoring Authority: 1 DIN
Class of Graphical Item: 1 LINETYPE
Name: 1 dasheddotted-
Description
A repeating pattern of three line segments and three gaps, in which the first line segment is larger than the second and third line
segments and the second and third line segments are equal in length. The gaps are equal in length. The intended visual
representation of this linetype is illustrated below.
- n n - n I - q II - w n
Additional Comments
Justification for Inclusion
This linetype is already present in the CGM. The same linetype value should be registered for use by other graphics standards.
Relationship to Standards
1) ISO/IEC 7942 : 1985, Information processing systems - Computer graphics - Graphical Kernel System (GKS) functional
specification - Specifies a registered line type defined in subclause 5.4.1 of IS0 7942.
2) ISO/IEC 8632-l: 1992, Information technology - Computer graphics - Metafile for the storage and transfer of picture
description information - Part 1: Functional specification (CGM) - Specifies a registered line type defined in subclause 5.7.2 of
IS0 8632-l.
3) ISO/IEC 8805: 1988, Information processing systems - Computer graphics - Graphical Kernel System for 3D (GKS-3D)
functional description - Specifies a registered line type defined in subclause 5.4.1 of IS0 8805.
4)
...