Annex F

(informative)

Change logs

This annex contains change logs comparing this release with prior releases.

Update Log

Updates to this publication are described below.

DateDescription
2016-08-23Initial draft with proposed data types.
2016-08-30Added referents and types to support variable cross sections.
2016-10-10Added spatial entities for infrastructure.
2016-11-16Added example for bridge geometry using alignment curves and string lines based on offset curves.
2016-12-05Added IfcSectionedSolidHorizontal; removed IfcFixedDirectionSweptAreaSolid, IfcRelPositions, and spatial entities for infrastructure; updated examples to use new data types.
2017-01-20Added and corrected new Where rules, removed Schramm transition curve type (identical to biquadratic parabola), documented transition curve types and triangulated irregular networks.
2017-01-24Updated examples, corrected reported errors, added guidance for alignment curve types, added links for reporting issues.
2017-01-26Added example for IfcLinearPlacement, marked as Release Candidate 3
2017-03-02Deprecated IfcClothoidalArcSegment2D, corrected errors in examples, clarified descriptions for vertical curves.
2017-03-10Replaced IfcCartesianPointList2DLabelled with TagList attributes at IfcCartesianPointList2D and IfcCartesianPointList3D, subtyped orphaned alignment definitions from IfcGeometricRepresentationItem, fixed formatting errors in rules and examples.

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