Namespace Xbim.Ifc2x3.PresentationResource Classes IfcColourRgb IfcColourSpecification IfcDraughtingPreDefinedColour IfcDraughtingPreDefinedTextFont IfcExternallyDefinedTextFont IfcPlanarBox IfcPlanarExtent IfcPreDefinedColour IfcPreDefinedItem IfcPreDefinedTextFont IfcTextStyleFontModel Structs IfcFontStyle IfcFontVariant IfcFontWeight IfcPresentableText IfcTextFontName Interfaces IfcColour IfcTextFontSelect Enums IfcDraughtingPreDefinedColour.IfcDraughtingPreDefinedColourClause IfcDraughtingPreDefinedTextFont.IfcDraughtingPreDefinedTextFontClause IfcFontStyle.IfcFontStyleClause IfcFontVariant.IfcFontVariantClause IfcFontWeight.IfcFontWeightClause IfcTextStyleFontModel.IfcTextStyleFontModelClause