Annex E
(informative)

Examples

E.1.4 - Bath Csg Solid

Example overview

The examples demonstrate the use of various geometric shape representation types to express a simple geometric form of an element. The examples of advanced geometric shape deal with CSG having Boolean operations, advanced swept solid and advanced brep representations. in some cases, the same geometry is also provided as faceted brep or tessellation to compare the results.

The CSG representation using Boolean operations is shown in Figure E.A. It shows a bath as a santitary terminal.

IFC-SPF source

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

FILE_SCHEMA (('IFC4X3_DEV_7e95fe8'));
ENDSEC;

DATA;
/* general entities required for all IFC data sets, defining the context for the exchange */
#1= IFCGEOMETRICREPRESENTATIONCONTEXT($,'Model',3,0.0001,#3,$);
#2= IFCCARTESIANPOINT((0.0,0.0,0.0));
#3= IFCAXIS2PLACEMENT3D(#2,$,$);
#4= IFCGEOMETRICREPRESENTATIONSUBCONTEXT('Axis','Model',*,*,*,*,#1,$,.MODEL_VIEW.,$);
#5= IFCGEOMETRICREPRESENTATIONSUBCONTEXT('Body','Model',*,*,*,*,#1,$,.MODEL_VIEW.,$);
/* defines the default building (as required as the minimum spatial element)  */
#50= IFCBUILDING('39t4Pu3nTC4ekXYRIHJB9W',#56,'IfcBuilding',$,$,$,$,$,$,$,$,$);
#51= IFCPERSONANDORGANIZATION(#52,#53,$);
#52= IFCPERSON('redacted','redacted',$,$,$,$,$,$);
#53= IFCORGANIZATION($,'redacted',$,$,$);
#54= IFCAPPLICATION(#55,'redacted','redacted','redacted');
#55= IFCORGANIZATION($,'redacted',$,$,$);
#56= IFCOWNERHISTORY(#51,#54,$,.ADDED.,1454575675,$,$,1454575675);
#57= IFCRELCONTAINEDINSPATIALSTRUCTURE('3Sa3dTJGn0H8TQIGiuGQd5',#56,'Building','Building Container for Elements',(#225),#50);
#58= IFCAXIS2PLACEMENT3D(#2,$,$);
#100= IFCPROJECT('0$WU4A9R19$vKWO$AdOnKA',#56,'IfcProject',$,$,$,$,(#1),#101);
#101= IFCUNITASSIGNMENT((#102,#103,#104));
#102= IFCSIUNIT(*,.LENGTHUNIT.,.MILLI.,.METRE.);
#103= IFCSIUNIT(*,.PLANEANGLEUNIT.,$,.RADIAN.);
#104= IFCSIUNIT(*,.TIMEUNIT.,$,.SECOND.);
#105= IFCRELAGGREGATES('091a6ewbvCMQ2Vyiqspa7a',#56,'Project Container','Project Container for Buildings',#100,(#50));
#200= IFCBLOCK(#201,2000.0,800.0,800.0);
#201= IFCAXIS2PLACEMENT3D(#2,$,$);
#202= IFCROUNDEDRECTANGLEPROFILEDEF(.AREA.,'VoidProfile',$,1800.0,600.0,200.0);
#203= IFCAXIS2PLACEMENT3D(#204,$,$);
#204= IFCCARTESIANPOINT((1000.0,400.0,100.0));
#205= IFCDIRECTION((0.0,0.0,1.0));
#206= IFCEXTRUDEDAREASOLID(#202,#203,#205,700.0);
#207= IFCBOOLEANRESULT(.DIFFERENCE.,#200,#206);
#208= IFCCSGSOLID(#207);
#209= IFCREPRESENTATIONMAP(#210,#211);
#210= IFCAXIS2PLACEMENT3D(#2,$,$);
#211= IFCSHAPEREPRESENTATION(#5,'Body','SolidModel',(#208));
#212= IFCMATERIAL('Ceramic',$,$);
#213= IFCRELASSOCIATESMATERIAL('0Pkhszwjv1qRMYyCFg9fjB',#56,'MatAssoc','Material Associates',(#214),#212);
#214= IFCSANITARYTERMINALTYPE('1HarmwaPv3OeJSXpaoPKpg',#56,'Bath',$,$,$,(#209),$,$,.BATH.);
#215= IFCRELDEFINESBYTYPE('1lO$X3e3j9lfVMhNy4MzKB',#56,$,$,(#225),#214);
#216= IFCRELDECLARES('1acQrDhur9399Xqs2jQs4t',#56,$,$,#100,(#214));
#217= IFCDIRECTION((1.0,0.0,0.0));
#218= IFCDIRECTION((0.0,1.0,0.0));
#219= IFCCARTESIANPOINT((0.0,0.0,0.0));
#220= IFCCARTESIANTRANSFORMATIONOPERATOR3D(#217,#218,#219,1.0,#221);
#221= IFCDIRECTION((0.0,0.0,1.0));
#222= IFCMAPPEDITEM(#209,#220);
#223= IFCSHAPEREPRESENTATION(#5,'Body','MappedRepresentation',(#222));
#224= IFCPRODUCTDEFINITIONSHAPE($,$,(#223));
#225= IFCSANITARYTERMINAL('3$$o7C03j0KQeLnoj018fc',#56,$,$,$,#227,#224,$,$);
#226= IFCAXIS2PLACEMENT3D(#2,$,$);
#227= IFCLOCALPLACEMENT($,#226);
ENDSEC;

END-ISO-10303-21;