IFC 4.3.2.20240809 (IFC4X3_ADD2) under development

Annex E
(informative)

Examples

E.4.11 - Slab Openings

Example overview

Additional test cases not yet allocated to individual test case groups.

This example illustrates a slab with extruded solid geometry, based on a material layer set usage definition. It includes one round opening and one rectangular recess. Figure E.A shows the resulting shape.

slab_with_openings
Figure E.A — Slab with opening and recess.

IFC-SPF source

ISO-10303-21;
HEADER;
FILE_DESCRIPTION(('ViewDefinition [DesignTransferView_V1]'),'2;1');
FILE_NAME(
/* name */ 'slab-openings.ifc',
/* time_stamp */ '2016-02-04T08:47:55',
/* author */ ('redacted'),
/* organization */ ('redacted'),
/* preprocessor_version */ 'redacted',
/* originating_system */ 'redacted',
/* authorization */ 'None');

FILE_SCHEMA (('IFC4X3_DEV_6e569f0'));
ENDSEC;

DATA;
/* general entities required for all IFC data sets, defining the context for the exchange */
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#3= IFCAXIS2PLACEMENT3D(#2,$,$);
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#5= IFCGEOMETRICREPRESENTATIONSUBCONTEXT('Body','Model',*,*,*,*,#1,$,.MODEL_VIEW.,$);
/* defines the default building (as required as the minimum spatial element)  */
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#101= IFCUNITASSIGNMENT((#102,#103,#104));
#102= IFCSIUNIT(*,.LENGTHUNIT.,.MILLI.,.METRE.);
#103= IFCSIUNIT(*,.PLANEANGLEUNIT.,$,.RADIAN.);
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#105= IFCRELAGGREGATES('091a6ewbvCMQ2Vyiqspa7a',#56,'Project Container','Project Container for Buildings',#100,(#50));
#200= IFCMATERIAL('Concrete','Concrete',$);
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#204= IFCMATERIALLAYERSET((#202),'200mm Concrete',$);
#205= IFCRELASSOCIATESMATERIAL('2l_enLhI93reVwnim9gXUq',#56,'MatAssoc','Material Associates',(#300),#204);
#300= IFCSLABTYPE('0RSW$KKbzCZ9QaSm3GoEan',#56,'200mm Concrete',$,$,$,$,$,$,.FLOOR.);
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#308= IFCINDEXEDPOLYCURVE(#307,(IFCLINEINDEX((1,2)),IFCARCINDEX((2,3,4)),IFCLINEINDEX((4,5)),IFCARCINDEX((5,6,1))),.F.);
#309= IFCARBITRARYCLOSEDPROFILEDEF(.AREA.,'Slab Perim',#308);
#310= IFCMATERIALLAYERSETUSAGE(#204,.AXIS3.,.POSITIVE.,-200.0,$);
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#322= IFCEXTRUDEDAREASOLID(#318,#319,#321,200.0);
#323= IFCSHAPEREPRESENTATION(#5,'Body','SweptSolid',(#322));
#324= IFCPRODUCTDEFINITIONSHAPE($,$,(#323));
#325= IFCOPENINGELEMENT('15RSTHd8nFVQWMRE7og7sd',#56,'Opening',$,$,#327,#324,$,$);
#326= IFCAXIS2PLACEMENT3D(#2,$,$);
#327= IFCLOCALPLACEMENT($,#326);
#328= IFCRELVOIDSELEMENT('0gqEDsyEzFXvY$fc_rUxyO',#56,$,$,#303,#325);
#329= IFCRECTANGLEPROFILEDEF(.AREA.,'RecessRectangle',$,1000.0,500.0);
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#331= IFCCARTESIANPOINT((500.0,1000.0,-50.0));
#332= IFCDIRECTION((0.0,0.0,1.0));
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#334= IFCSHAPEREPRESENTATION(#5,'Body','SweptSolid',(#333));
#335= IFCPRODUCTDEFINITIONSHAPE($,$,(#334));
#336= IFCOPENINGELEMENT('0w93HZ19H2D99zbAVNb4o2',#56,'Recess',$,$,#338,#335,$,.RECESS.);
#337= IFCAXIS2PLACEMENT3D(#2,$,$);
#338= IFCLOCALPLACEMENT($,#337);
#339= IFCRELVOIDSELEMENT('3iUkij4q1DmxlXuHzQVJaM',#56,$,$,#303,#336);
ENDSEC;

END-ISO-10303-21;

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