ISO 10303-52:2011/Cor 1:2014

INTERNATIONAL STANDARD ISO 10303-52:2011
TECHNICAL CORRIGENDUM 1
Published 2014-07-01
INTERNATIONAL ORGANIZATION FOR STANDARDIZATION • МЕЖДУНАРОДНАЯ ОРГАНИЗАЦИЯ ПО СТАНДАРТИЗАЦИИ • ORGANISATION INTERNATIONALE DE NORMALISATION
Industrial automation systems and integration —
Product data representation and exchange —
Part 52:
Integrated generic resource:
Mesh based topology
TECHNICAL CORRIGENDUM 1
Systèmes d’ automatisation industrielle et intégration – Représentation et échange de données de
produits - Partie 52 Ressources génériques intégrées: Topologie du réseau
RECTIFICATIF TECHNIQUE 1
Technical Corrigendum 1 to International Standard ISO 10303-52:2011 was prepared by Technical Committee ISO/TC 184,
Automation systems and integration, Subcommittee SC 4, Industrial data.
Included Bugzilla reports: Bug 3439, Bug 4617, 4813
ICS 25.040.40 Ref. No. ISO 10303-52:2011/Cor.1:2014(E)
© ISO 2014 – All rights reserved
Published in Switzerland
ISO 10303-52:2011/Cor.1:2014(E)
Introduction
This Technical Corrigendum applies to ISO 10303-52:2011.
The purpose of the modifications to the text of ISO 10303-52:2001 is to correct errors relating to incorrect
inclusion of a polygon cell shape. Corrections are made to the text, a table, to correct the EXPRESS in 3
entity definitions and to one EXPRESS function, and to update the document identifiers in annex B.
ii °c ISO 2014 — All rights reserved

ISO 10303-52:2011/Cor.1:2014(E)
Modifications to the text of ISO 10303-52:2011
Page vi, tables
Delete the entry for table 2 and replace with:
Table 2 Edges of triangle and quadrilateral cells . . . . . . . . . . . . . . . . . . . . . . . . 27
Page 14, 4.3.1 array_based_unstructured_mesh
Some attributes referenced in the EXPRESS are not properly defined, Remove the EXPRESS definition of
this entity and replce with:
EXPRESS specification:
)
*
ENTITY array_based_unstructured_mesh
SUBTYPE OF (unstructured_mesh);
cells : ARRAY [1 : SELF\unstructured_mesh.cell_count] OF vertex_defined_cell;
WHERE
wr1: SELF\mesh.index_count = 1;
END_ENTITY;
(
*
Page 26, 4.3.1 explicit_unstructured_mesh
An attribute referenced in the EXPRESS is not properly defined, Remove the EXPRESS definition of this
entity and replace with:
EXPRESS specification:
)
*
ENTITY explicit_unstructured_mesh
SUBTYPE OF (unstructured_mesh);
explicit_model : fea_model;
cells : ARRAY [1 : SELF\unstructured_mesh.cell_count] OF UNIQUE element_representation;
END_ENTITY;
(
*
Page 27, table 2
This table contains information on polygon cells which are not included in ISO 10303-52. Remove table
2 completely and replace with:
Page 34, 4.3.21 vertex_defined_cell The description of the vertices attribute contains an inappropri-
ate reference to plygon. Remove the current description and replace with:
°c ISO 2014 — All rights reserved 1

ISO 10303-52:2011/Cor.1:2014(E)
Table 2 – Edges of triangle and quadrilateral cells
triangle quadrilateral
edge vertices edge vertices
1 1, 2 1 1, 2
2 2, 3 2 2, 3
3 3, 1 3 3, 4
4 4, 1
vertices: the vertices at the ends of cell edges, and within cell edges, cell faces and the interior of the
cell. The position of a vertex or an edge node in the array depends on the shape of the cell as established
graphically in Figures 10 through 39 in ISO 10303-104.
Page 36, 4.4.2 cell_counts This function contains a case of polygon which does not exist. Further
qualification has been added to other cases to avoid interaction with definitions in other schemas. Re-
move the EXPRESS definition of this function and replace with:
EXPRESS specification:
)
*
FUNCTION cell_counts(arg : vertex_defined_cell) : ARRAY[1:3] OF INTEGER;
LOCAL
om1 : INTEGER := 0; -- (order - 1)
om1sq : INTEGER := om1 2; -- (order - 1) squared
**
vts : INTEGER; -- number of bounding vertices
eds : INTEGER; -- number of edges
qf : INTEGER := 0; -- number of quadrilateral faces
tf : INTEGER := 0; -- number of triangular faces
result : ARRAY [1:3] OF INTEGER := [0,0,0];
END_LOCAL;
CASE arg.order OF
linear : om1 := 0;
quadratic : om1 := 1;
cubic : om1 := 2;
OTHERWISE : RETURN(result);
END_CASE;
om1sq := om1 2;
**
CASE arg.shape OF
cell_shape_0D.single :
BEGIN
vts :
...