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#CV-2x3-126

agreements on the limited subset of text style entities and attributes to be supported
number
#CV-06-126
based on
IFC2x3
effects
extended coordination view
date
05. May 2006
initiator
ISG meeting Munich
summary agreements on the limited subset of text style entities and attributes to be supported

 

Description

For the implementation of text within the IFC2x3 extended coordination view the following agreements and limitations are made:

  • the supported text is available as model text (vector based test) and drafting text (true text fonts), only the drafting text is exported
  • the IfcTextStyle is supported with TextFontStyle being IfcTextStyleFontModel, using Name, FontFamily and FontSize (drafting height), and TextCharacterAppearance being IfcTextStyleForDefinedFont using Colour
  • the length measures used within the IfcTextStyle are all given as drafting values (1:1 on paper)

 

In addition to the style, the text is placed within the model by IfcTextLiteral (and subtype IfcTextLiteralWithExtend. The following agreements are made:

  • IfcTextLiteral is supported for single line text
  • IfcTextLiteralWithExtent is supported for single and multi-line text
  • the attributes Placement, Literal and Extent are supported, Path is always assumed to be .LEFT.
  • the BoxAlignment may be supported (to be determined yet)

 

Addition: 14.05.2007

  • any text in IFC2x3 coordination view is a model text - i.e. the text style refers to model units