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#CV-2x3-125

agreements on the limited subset of hatching style entities and attributes to be supported
number
#CV-06-125
based on
IFC2x3
effects
extended coordination view
date
05. May 2006
initiator
ISG meeting Munich
summary agreements on the limited subset of hatching style entities and attributes to be supported

 

Description

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

  • the supported hatchings are exported as model hatches
  • the TargetScale attribute of the associated representation context provides the scale factor to convert the model hatch into a drafting hatch for the given target plot scale.
  • the support for IfcFillAreaStyle is restricted to:
    • IfcFillAreaStyle with FillStyles being IfcColour (for background or solid colour) and IfcFillAreaStyleHatching
    • one zero, one or two instances of IfcFillAreaStyleHatching are supported within FillStyles
    • IfcFillAreaStyleTiles and IfcExternallyDefinedHatchStyle are not supported
    • within IfcFillAreaStyleHatching, the distance between two hatch lines is given by an IfcPositiveLengthMeasure, not by IfcOneDirectionRepeatFactor
    • IfcPointOfReferenceHatchLine is not supported, see agreement #CV-06-118

 

see also agreement #CV-06-113