CV-2x3-125 (aka CV-06-125)
Agreements on the limited subset of hatching style entities and attributes to be supported
Based on IFC2x3
Initiator ISG Meeting-Munich
Effects Extended Coordination View
Date 2006 05 05
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-2x3-118
see also agreement CV-2x3-113