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SectionedSolidHorizontal with a vertically oriented directrix #144

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Unit test

IfcSectionedSolidHorizontal with a vertically oriented directrix in world coordinates

Covered topics

  • project setup
  • georeferencing
  • alignment semantics
  • alignment geometry
  • linear placement
  • project breakdown structure / spatial structure
  • terrain
  • triangulated irregular network
  • open cross profile
  • sectioned surface & solid
  • pavement & course
  • surface feature
  • earthworks
  • geotechnics
  • longitudinal products (barriers, guardrail, ...)
  • interchange
  • structural
  • drainage
  • signage
  • road furniture
  • rail furniture
  • ports & waterways furniture
  • bridge furniture

@Nadia-Sugar Nadia-Sugar changed the title IfcSectionedSolidHorizontal with a vertically oriented directrix SectionedSolidHorizontal with a vertically oriented directrix Aug 5, 2021
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@pjanck pjanck left a comment

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Some proposal and a clarification needed.

Comment on lines +17 to +19
#13= IFCSIUNIT(*,.LENGTHUNIT.,.DECI.,.METRE.);
#14= IFCSIUNIT(*,.AREAUNIT.,.DECI.,.SQUARE_METRE.);
#15= IFCSIUNIT(*,.VOLUMEUNIT.,.DECI.,.CUBIC_METRE.);
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Deci-square meter? Love it!

#81= IFCSECTIONEDSOLIDHORIZONTAL(#75,(#83,#111),(#138,#144),.F.);
#83= IFCARBITRARYCLOSEDPROFILEDEF(.AREA.,'',#86);
#86= IFCCOMPOSITECURVE((#97,#109),$);
#88= IFCTRIMMEDCURVE(#96,(IFCPARAMETERVALUE(3.50823878194633E-15)),(
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This seems almost 0 - would prefer to see it :)

Suggested change
#88= IFCTRIMMEDCURVE(#96,(IFCPARAMETERVALUE(3.50823878194633E-15)),(
#88= IFCTRIMMEDCURVE(#96,(IFCPARAMETERVALUE(0.)),(

180.)),.T.,.PARAMETER.);
#103= IFCAXIS2PLACEMENT2D(#104,#106);
#104= IFCCARTESIANPOINT((-17.5,0.));
#106= IFCDIRECTION((-1.,-1.22464679914735E-16));
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Again, seems like a zero.

Suggested change
#106= IFCDIRECTION((-1.,-1.22464679914735E-16));
#106= IFCDIRECTION((-1.,0.));

#109= IFCCOMPOSITECURVESEGMENT(.CONTINUOUS.,.T.,#100);
#111= IFCARBITRARYCLOSEDPROFILEDEF(.AREA.,'',#112);
#112= IFCCOMPOSITECURVE((#123,#134),$);
#114= IFCTRIMMEDCURVE(#122,(IFCPARAMETERVALUE(3.50823878194633E-15)),(
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Suggested change
#114= IFCTRIMMEDCURVE(#122,(IFCPARAMETERVALUE(3.50823878194633E-15)),(
#114= IFCTRIMMEDCURVE(#122,(IFCPARAMETERVALUE(0.)),(

Comment on lines +85 to +87
#143= IFCPOINTBYDISTANCEEXPRESSION(IFCNONNEGATIVELENGTHMEASURE(8600.),$,
$,$,#75);
#144= IFCAXIS2PLACEMENTLINEAR(#143,#145,#147);
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The IfcPolyline being the directrix, goes from (0,0) to (86,0); however the IfcSectionedSolidHorizontal goes until 8600. This needs revision - the units missmatch.

@michelangelo-acca
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ACCA-UT-SectionedSolidHorizontal-LinearDirectrix-VerticalElement-1

This is what we can read from the model, there are also some coordinates for reference.

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3 participants