Namespace Xbim.Ifc4.GeometricConstraintResource Classes IfcAlignment2DHorizontal IfcAlignment2DHorizontalSegment IfcAlignment2DSegment IfcAlignment2DVerSegCircularArc IfcAlignment2DVerSegLine IfcAlignment2DVerSegParabolicArc IfcAlignment2DVertical IfcAlignment2DVerticalSegment IfcAlignmentCurve IfcConnectionCurveGeometry IfcConnectionGeometry IfcConnectionPointEccentricity IfcConnectionPointGeometry IfcConnectionSurfaceGeometry IfcConnectionVolumeGeometry IfcGridAxis IfcGridPlacement IfcLinearPlacement IfcLocalPlacement IfcObjectPlacement IfcVirtualGridIntersection Interfaces IfcCurveOrEdgeCurve IfcGridPlacementDirectionSelect IfcPointOrVertexPoint IfcSolidOrShell IfcSurfaceOrFaceSurface Enums IfcGridAxis.IfcGridAxisClause IfcLocalPlacement.IfcLocalPlacementClause