ISO 5456-4:1996 - Central projection - Technical drawings projection methods Part 4

Oct 24, 2026

Upload by dhado

ISO 5456-4:1996 specifies basic rules for the development and application of central projection in technical drawings. It defines essential geometric parameters used in central projection, including height of projection, horizontal distance, projection angle, scale point and station of observation. The standard also provides letter symbols for terms used in central projection, and describes key construction methods such as two-point methods used to determine vanishing points and related representation features.

LanguageEnglish

CategoryResearch & Report

FormatPDF

Pages12

Reading Time30 min

AccessFree to download

Scope

Normative reference

Definitions

height of projection

horizontal distance

projection angle

scale point

station of observation

Symbols

Table 1—Letter symbols

Central projection methods

Two-point method

INTERNATIONAL STANDARD ISO 5456-4 First edition 1996-06-15 Corrected and reprinted 1998-08-01 Technical drawings—Projection methods— Part 4: Central projection iTeh SDTesPartAsiien: tjiqct—enMPétralesVdeIproEWjection— ( [standards.iteh.ai](standards.iteh.ai)) ISO 5456-4:1996 [https://standards.iteh.ai/catalog/standards/sist/24ce4351-a303-4f22-9dbc](https://standards.iteh.ai/catalog/standards/sist/24ce4351-a303-4f22-9dbc)f41433602d6c/iso-5456-4-1996 A ISO 5456-4:1996(E) ISO 5456-4:1996(E) Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies) . The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Sanodteard requires approval by aTleath75S%TofAthNe mDemAbeRr bDodiePs cRastEingVIEW International Standard ISO 5456-4 was pr(erdnbdy ehi[a](a.li)[.](a.li)[l](a.li)[i](a.li)oemhm.ieie) ISO/TC 10, Technical drawings, product definition and related documentation, Subcommittee SC 1, Basic conventions. ISO 5456-4:1996 [https://standards.iteh.ai/catalog/standards/sist/24ce4351-a303-4f22-9dbc](https://standards.iteh.ai/catalog/standards/sist/24ce4351-a303-4f22-9dbc) ISO 5456 consists of the following parts, un4e1r4h30g2/ol-il6- -T4e9n6ical drawings— Projection methods: — Part 1: Synopsis — Part 2: Orthographic representations — Part 3: Axonometric representations — Part 4: Central projection Annexes A and B of this part of ISO 5456 are for information only. © ISO 1996 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from the publisher. International Organization for Standardization Case postale 56 • CH-1211 Genève 20 • Switzerland Internet [iso@iso.ch](iso@iso.ch) Printed in Switzerland © ISO ISO 5456-4:1996(E) Introduction Central projection (perspective) is a realistic pictorial representation obtained by projecting the object to be represented from a point at finite distance (projection centre) on a single projection plane (normally the drawing surface) . Central projection provides excellent visual appearance of the object (monocular vision) and is often used in architectural drawings. iTeh STANDARD PREVIEW ( [standards.iteh.ai](standards.iteh.ai)) ISO 5456-4:1996 [https://standards.iteh.ai/catalog/standards/sist/24ce4351-a303-4f22-9dbc](https://standards.iteh.ai/catalog/standards/sist/24ce4351-a303-4f22-9dbc) f41433602d6c/iso-5456-4-1996 iTeh STANDARD PREVIEW ( [standards.iteh.ai](standards.iteh.ai)) ISO 5456-4:1996 [https://standards.iteh.ai/catalog/standards/sist/24ce4351-a303-4f22-9dbc](https://standards.iteh.ai/catalog/standards/sist/24ce4351-a303-4f22-9dbc)f41433602d6c/iso-5456-4-1996 INTERNATIONAL STANDARD © ISO ISO 5456-4:1996(E) Technical drawings—Projection methods—Part 4: Central projection iTeh STANDARD PREVIEW ( [standards.iteh.ai](standards.iteh.ai)) ISO 5456-4:1996 1 Scope [https://standards.iteh.ai/catalog/standards/si](https://standards.iteh.ai/catalog/standards/si).ciea4ngl3ig5t-re0ugh4fti-e9pd:rLcjenectio pnaracelnletrletaingteivrensectliinoen This part of ISO 5456 specifies basic ruf4le1336for02tdh/iso-54i4h-1tprojection plane gives the vanishing point of development and application of

FAQs

What does ISO 5456-4:1996 cover?

It specifies basic rules for the development and application of central projection in technical drawings.

Which terms are defined in this part of ISO 5456?

It defines height of projection, horizontal distance, projection angle, scale point, and station of observation, using the definitions given in ISO 10209-2 plus additional definitions.

What information does the standard provide for central projection?

It includes letter symbols for central projection terms (Table 1) and describes methods used in practice, such as the two-point method.

Oct 24, 2026

Upload by dhado