EN ISO 25178-72:2017

SLOVENSKI STANDARD
01-september-2017
6SHFLILNDFLMDJHRPHWULMVNLKYHOLþLQL]GHOND*367HNVWXUDSRYUãLQHUDYQD
GHO;0/IRUPDWGDWRWHNH[S,62
Geometrical product specifications (GPS) - Surface texture: Areal - Part 72: XML file
format x3p (ISO 25178-72:2017)
Geometrische Produktspezifikation (GPS) - Oberflächenbeschaffenheit: Flächenhaft -
Teil 72: XML Dateiformat x3p (ISO 25178-72:2017)
Spécification géométrique des produits (GPS) - État de surface: Surfacique - Partie 72:
Format de fichier XML x3p (ISO 25178-72:2017)
Ta slovenski standard je istoveten z: EN ISO 25178-72:2017
ICS:
17.040.20 Lastnosti površin Properties of surfaces
17.040.40 6SHFLILNDFLMDJHRPHWULMVNLK Geometrical Product
YHOLþLQL]GHOND*36 Specification (GPS)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 25178-72
EUROPEAN STANDARD
NORME EUROPÉENNE
June 2017
EUROPÄISCHE NORM
ICS 17.040.20
English Version
Geometrical product specifications (GPS) - Surface texture:
Areal - Part 72: XML file format x3p (ISO 25178-72:2017)
Spécification géométrique des produits (GPS) - État de Geometrische Produktspezifikation (GPS) -
surface: Surfacique - Partie 72: Format de fichier XML Oberflächenbeschaffenheit: Flächenhaft - Teil 72: XML
x3p (ISO 25178-72:2017) Dateiformat x3p (ISO 25178-72:2017)
This European Standard was approved by CEN on 24 April 2017.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2017 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 25178-72:2017 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO 25178-72:2017) has been prepared by Technical Committee ISO/TC 213
"Dimensional and geometrical product specifications and verification" in collaboration with Technical
Committee CEN/TC 290 “Dimensional and geometrical product specification and verification” the
secretariat of which is held by AFNOR.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by December 2017, and conflicting national standards
shall be withdrawn at the latest by December 2017.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent
rights.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,
Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
Endorsement notice
The text of ISO 25178-72:2017 has been approved by CEN as EN ISO 25178-72:2017 without any
modification.
INTERNATIONAL ISO
STANDARD 25178-72
First edition
2017-05
Geometrical product specifications
(GPS) — Surface texture: Areal —
Part 72:
XML file format x3p
Spécification géométrique des produits (GPS) — État de surface:
Surfacique —
Partie 72: Format de fichier XML x3p
Reference number
ISO 25178-72:2017(E)
©
ISO 2017
ISO 25178-72:2017(E)
© ISO 2017, Published in Switzerland
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form
or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior
written permission. Permission can be requested from either ISO at the address below or ISO’s member body in the country of
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copyright@iso.org
www.iso.org
ii © ISO 2017 – All rights reserved

ISO 25178-72:2017(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Requirements . 4
4.1 Units . 4
4.2 Recommended offset value . 4
5 x3p file format . 4
5.1 General . 4
5.2 File name extension . 4
5.3 Minimum contents of zip-container . 4
5.4 Optional contents of zip-container . 4
5.4.1 General. 4
5.4.2 Binary encoded coordinates . 5
5.4.3 Validity mask . 5
5.4.4 Vendor specific extensions . 5
5.5 Contents and format of main.xml. 5
5.5.1 General. 5
5.5.2 Main records . 5
5.5.3 Record1: Header, data types, and axes definitions . 5
5.5.4 Record2: Meta data . 8
5.5.5 Record3: 3D point data.10
5.5.6 Record4: Checksum information .14
5.5.7 Vendor specific extensions .14
Annex A (informative) XML file format .15
Annex B (informative) Sample main.xml .20
Annex C (informative) Relation with the GPS matrix .22
Bibliography .23
ISO 25178-72:2017(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.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/ directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www .iso .org/ patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation on the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO’s adherence to the
World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following
URL: w w w . i s o .org/ iso/ foreword .html.
This document was prepared by Technical Committee ISO/TC 213, Dimensional and geometrical product
specifications and verification.
A list of all parts in the ISO 25178 series can be found on the ISO website.
iv © ISO 2017 – All rights reserved

ISO 25178-72:2017(E)
Introduction
This document is a geometrical product specification (GPS) standard and is to be regarded as a general
GPS standard (see ISO 14638). It influences the chain link F of the chains of standards on profile and
areal surface texture.
The ISO/GPS matrix model given in ISO 14638 gives an overview of the ISO/GPS system of which this
document is a part. The fundamental rules of ISO/GPS given in ISO 8015 apply to this document and
the default decision rules given in ISO 14253-1 apply to the specifications made in accordance with this
document, un
...