Annex E
(informative)

Examples

E.11.1 - Curve Parameters In Degrees

Example overview

This example illustrates extruded solids based on trimmed arcs using degrees. The resulting solid is identical to the corresponding example in radians.

IFC-SPF source

ISO-10303-21;
HEADER;
FILE_DESCRIPTION(('ViewDefinition [DesignTransferView_V1]'),'2;1');
FILE_NAME(
/* name */ 'curve-parameters-in-degrees.ifc',
/* time_stamp */ '2017-06-28T23:09:53',
/* author */ ('redacted'),
/* organization */ ('redacted'),
/* preprocessor_version */ 'redacted',
/* originating_system */ 'redacted',
/* authorization */ 'None');

FILE_SCHEMA (('IFC4X3_DEV_ffe3a63'));
ENDSEC;

DATA;
#10= IFCCARTESIANPOINT((0.0,0.0,0.0));
#11= IFCAXIS2PLACEMENT3D(#10,$,$);
#12= IFCLOCALPLACEMENT($,#11);
/* defines the default building (as required as the minimum spatial element)  */
/* These profile curves are intentionally expressed in a more complicated manner than necessary to test parameterization */
#13= IFCBUILDING('39t4Pu3nTC4ekXYRIHJB9W',$,'IfcBuilding',$,$,#12,$,$,$,$,$,#18);
#14= IFCRELCONTAINEDINSPATIALSTRUCTURE('3Sa3dTJGn0H8TQIGiuGQd5',$,'Building','Building Container for Elements',(#77,#131,#180),#13);
#15= IFCCARTESIANPOINT((0.0,0.0,0.0));
#16= IFCAXIS2PLACEMENT3D(#15,$,$);
#18= IFCPOSTALADDRESS($,$,$,$,('Unknown'),$,'Unknown',$,'Unknown','Unknown');
/* general entities required for all IFC data sets, defining the context for the exchange */
#20= IFCPROJECT('0$WU4A9R19$vKWO$AdOnKA',$,'IfcProject',$,$,$,$,(#31),#21);
#21= IFCUNITASSIGNMENT((#22,#23,#24,#27,#29));
#22= IFCSIUNIT(*,.LENGTHUNIT.,.MILLI.,.METRE.);
#23= IFCSIUNIT(*,.AREAUNIT.,$,.SQUARE_METRE.);
#24= IFCSIUNIT(*,.VOLUMEUNIT.,$,.CUBIC_METRE.);
#25= IFCSIUNIT(*,.PLANEANGLEUNIT.,$,.RADIAN.);
#26= IFCMEASUREWITHUNIT(IFCPLANEANGLEMEASURE(0.0174532925199433),#25);
#27= IFCCONVERSIONBASEDUNIT(#28,.PLANEANGLEUNIT.,'DEGREE',#26);
#28= IFCDIMENSIONALEXPONENTS(0,0,0,0,0,0,0);
#29= IFCSIUNIT(*,.TIMEUNIT.,$,.SECOND.);
#30= IFCRELAGGREGATES('091a6ewbvCMQ2Vyiqspa7a',$,'Project Container','Project Container for Buildings',#20,(#13));
#31= IFCGEOMETRICREPRESENTATIONCONTEXT($,'Model',3,0.0001,#33,#34);
#32= IFCCARTESIANPOINT((0.0,0.0,0.0));
#33= IFCAXIS2PLACEMENT3D(#32,$,$);
#34= IFCDIRECTION((0.0,1.0));
#35= IFCGEOMETRICREPRESENTATIONSUBCONTEXT('Body','Model',*,*,*,*,#31,$,.MODEL_VIEW.,$);
/* Example data for CurveParametersDegrees */
#50= IFCMATERIAL('Steel',$,$);
#52= IFCCARTESIANPOINT((-1000.0,1000.0));
#53= IFCDIRECTION((0.70710678,-0.70710678));
#54= IFCVECTOR(#53,1414.2135623731);
#55= IFCLINE(#52,#54);
#56= IFCTRIMMEDCURVE(#55,(IFCPARAMETERVALUE(0.292893218813453)),(IFCPARAMETERVALUE(1.70710678118655)),.T.,.PARAMETER.);
#57= IFCCOMPOSITECURVESEGMENT(.CONTINUOUS.,.T.,#56);
#58= IFCCARTESIANPOINT((0.0,0.0));
#59= IFCAXIS2PLACEMENT2D(#58,$);
#60= IFCCIRCLE(#59,1000.0);
#61= IFCTRIMMEDCURVE(#60,(IFCPARAMETERVALUE(315.0)),(IFCPARAMETERVALUE(135.0)),.T.,.PARAMETER.);
#62= IFCCOMPOSITECURVESEGMENT(.CONTINUOUS.,.T.,#61);
#63= IFCCOMPOSITECURVE((#57,#62),.U.);
#64= IFCARBITRARYCLOSEDPROFILEDEF(.AREA.,'SemiCircle',#63);
#65= IFCMATERIALPROFILE('SemiCircle',$,#50,#64,$,$);
#67= IFCMATERIALPROFILESET('SemiCircle',$,(#65),$);
#68= IFCRELASSOCIATESMATERIAL('1gdVo5TjPETPZlW8HSRupM',$,'MatAssoc','Material Associates',(#69),#67);
#69= IFCCOLUMNTYPE('24mq0gwVr7bgEMXPmo$TrF',$,'SemiCircle',$,$,$,$,$,$,.COLUMN.);
#70= IFCRELDEFINESBYTYPE('0devdSRyf3uBEQbSqWTDjo',$,'NameNotAssigned',$,(#77),#69);
#71= IFCRELDECLARES('1Cjr05W9T0fx0M3_mdVqMd',$,$,$,#20,(#69,#124,#173));
#72= IFCMATERIALPROFILESETUSAGE(#67,5,$);
#73= IFCRELASSOCIATESMATERIAL('35z8gDFbb6gvrCOz$24tUJ',$,'MatAssoc','Material Associates',(#77),#72);
#74= IFCCARTESIANPOINT((0.0,0.0,0.0));
#75= IFCAXIS2PLACEMENT3D(#74,$,$);
#76= IFCLOCALPLACEMENT(#12,#75);
#77= IFCCOLUMN('0RGc8lepr7BRF_EtHrWJ45',$,'SemiCircle',$,$,#76,#85,$,$);
#78= IFCCARTESIANPOINT((0.0,0.0,2000.0));
#79= IFCPOLYLINE((#15,#78));
#80= IFCGEOMETRICREPRESENTATIONSUBCONTEXT('Axis','Model',*,*,*,*,#31,$,.MODEL_VIEW.,$);
#81= IFCSHAPEREPRESENTATION(#80,'Axis','Curve3D',(#79));
#82= IFCEXTRUDEDAREASOLID(#64,$,#83,2000.0);
#83= IFCDIRECTION((0.0,0.0,1.0));
#84= IFCSHAPEREPRESENTATION(#35,'Body','SweptSolid',(#82));
#85= IFCPRODUCTDEFINITIONSHAPE($,$,(#81,#84));
#100= IFCCARTESIANPOINT((0.0,1000.0));
#101= IFCAXIS2PLACEMENT2D(#100,#102);
#102= IFCDIRECTION((-1.0,0.0));
#103= IFCCIRCLE(#101,1732.05081);
#104= IFCTRIMMEDCURVE(#103,(IFCPARAMETERVALUE(60.0)),(IFCPARAMETERVALUE(120.0)),.T.,.PARAMETER.);
#105= IFCCOMPOSITECURVESEGMENT(.CONTINUOUS.,.T.,#104);
#106= IFCCARTESIANPOINT((-866.0254,-500.0));
#107= IFCAXIS2PLACEMENT2D(#106,#108);
#108= IFCDIRECTION((0.0,-1.0));
#109= IFCCIRCLE(#107,1732.05081);
#110= IFCTRIMMEDCURVE(#109,(IFCPARAMETERVALUE(90.0)),(IFCPARAMETERVALUE(150.0)),.T.,.PARAMETER.);
#111= IFCCOMPOSITECURVESEGMENT(.CONTINUOUS.,.T.,#110);
#112= IFCCARTESIANPOINT((866.0254,-500.0));
#113= IFCAXIS2PLACEMENT2D(#112,#114);
#114= IFCDIRECTION((0.0,1.0));
#115= IFCCIRCLE(#113,1732.05081);
#116= IFCTRIMMEDCURVE(#115,(IFCPARAMETERVALUE(30.0)),(IFCPARAMETERVALUE(90.0)),.T.,.PARAMETER.);
#117= IFCCOMPOSITECURVESEGMENT(.CONTINUOUS.,.T.,#116);
#118= IFCCOMPOSITECURVE((#105,#111,#117),.U.);
#119= IFCARBITRARYCLOSEDPROFILEDEF(.AREA.,'CurviLinearTriangle',#118);
#120= IFCMATERIALPROFILE('CurviLinearTriangle',$,#50,#119,$,$);
#122= IFCMATERIALPROFILESET('CurviLinearTriangle',$,(#120),$);
#123= IFCRELASSOCIATESMATERIAL('1qSyS$HSb8TRu4PVnIUzZM',$,'MatAssoc','Material Associates',(#124),#122);
#124= IFCCOLUMNTYPE('0JgmY6eGLC9AwX_nMFf5CT',$,'CurviLinearTriangle',$,$,$,$,$,$,.COLUMN.);
#125= IFCRELDEFINESBYTYPE('1N1PpBCJLB4QMrIjidnGaj',$,'NameNotAssigned',$,(#131),#124);
#126= IFCMATERIALPROFILESETUSAGE(#122,5,$);
#127= IFCRELASSOCIATESMATERIAL('00Bah4pIPCa9jB2F34kUX_',$,'MatAssoc','Material Associates',(#131),#126);
#128= IFCCARTESIANPOINT((2500.0,0.0,0.0));
#129= IFCAXIS2PLACEMENT3D(#128,$,$);
#130= IFCLOCALPLACEMENT(#12,#129);
#131= IFCCOLUMN('3vcm8ZmFfDwhpgzzT7EP8n',$,'CurviLinearTriangle',$,$,#130,#137,$,$);
#132= IFCCARTESIANPOINT((0.0,0.0,2000.0));
#133= IFCPOLYLINE((#15,#132));
#134= IFCSHAPEREPRESENTATION(#80,'Axis','Curve3D',(#133));
#135= IFCEXTRUDEDAREASOLID(#119,$,#83,2000.0);
#136= IFCSHAPEREPRESENTATION(#35,'Body','SweptSolid',(#135));
#137= IFCPRODUCTDEFINITIONSHAPE($,$,(#134,#136));
#150= IFCCARTESIANPOINT((0.0,0.0));
#151= IFCAXIS2PLACEMENT2D(#150,$);
#152= IFCELLIPSE(#151,1000.0,500.0);
#153= IFCTRIMMEDCURVE(#152,(IFCPARAMETERVALUE(0.0)),(IFCPARAMETERVALUE(45.0)),.T.,.PARAMETER.);
#154= IFCCOMPOSITECURVESEGMENT(.CONTINUOUS.,.T.,#153);
#155= IFCCARTESIANPOINT((0.0,0.0));
#156= IFCDIRECTION((0.89442719,0.4472136));
#157= IFCVECTOR(#156,1.0);
#158= IFCLINE(#155,#157);
#159= IFCTRIMMEDCURVE(#158,(IFCPARAMETERVALUE(0.0)),(IFCPARAMETERVALUE(790.569415042095)),.F.,.PARAMETER.);
#160= IFCCOMPOSITECURVESEGMENT(.CONTINUOUS.,.T.,#159);
#161= IFCCARTESIANPOINT((0.0,0.0));
#162= IFCDIRECTION((1.0,0.0));
#163= IFCVECTOR(#162,1.0);
#164= IFCLINE(#161,#163);
#165= IFCTRIMMEDCURVE(#164,(IFCPARAMETERVALUE(0.0)),(IFCPARAMETERVALUE(1000.0)),.T.,.PARAMETER.);
#166= IFCCOMPOSITECURVESEGMENT(.CONTINUOUS.,.T.,#165);
#167= IFCCOMPOSITECURVE((#154,#160,#166),.U.);
#168= IFCARBITRARYCLOSEDPROFILEDEF(.AREA.,'PartialEllipse',#167);
#169= IFCMATERIALPROFILE('PartialEllipse',$,#50,#168,$,$);
#171= IFCMATERIALPROFILESET('PartialEllipse',$,(#169),$);
#172= IFCRELASSOCIATESMATERIAL('2V$PMUw5f3PgVGq_LG8lb7',$,'MatAssoc','Material Associates',(#173),#171);
#173= IFCCOLUMNTYPE('32anvmJgjFPOL650_UAlfM',$,'PartialEllipse',$,$,$,$,$,$,.COLUMN.);
#174= IFCRELDEFINESBYTYPE('1YdxXK2rrC6RnMj56iAUZG',$,'NameNotAssigned',$,(#180),#173);
#175= IFCMATERIALPROFILESETUSAGE(#171,5,$);
#176= IFCRELASSOCIATESMATERIAL('1k_RZ6rAPBe92Lvj8VqnvM',$,'MatAssoc','Material Associates',(#180),#175);
#177= IFCCARTESIANPOINT((5000.0,0.0,0.0));
#178= IFCAXIS2PLACEMENT3D(#177,$,$);
#179= IFCLOCALPLACEMENT(#12,#178);
#180= IFCCOLUMN('0gw7Zq2jn3b91J9aZCStsR',$,'PartialEllipse',$,$,#179,#186,$,$);
#181= IFCCARTESIANPOINT((0.0,0.0,2000.0));
#182= IFCPOLYLINE((#15,#181));
#183= IFCSHAPEREPRESENTATION(#80,'Axis','Curve3D',(#182));
#184= IFCEXTRUDEDAREASOLID(#168,$,#83,2000.0);
#185= IFCSHAPEREPRESENTATION(#35,'Body','SweptSolid',(#184));
#186= IFCPRODUCTDEFINITIONSHAPE($,$,(#183,#185));
ENDSEC;

END-ISO-10303-21;