IfcTwoDirectionRepeatFactor

Definition from ISO/CD 10303-46:1992: A two direction repeat factor combines two vectors which are used in the fill area style tiles entity for determining the shape and relative location of tiles. Given the initial position of any tile, the two direction repeat factor determines eight new positions according to the equation:

k₁* R₁ + k₂* R₂ k X{-1,1}

NOTE Corresponding STEP name: two_direction_repeat_factor. Please refer to ISO/IS 10303-46:1994 for the final definition of the formal standard.

HISTORY New entity in Release IFC2x 2nd Edition.

EXPRESS specification:

ENTITY IfcTwoDirectionRepeatFactor

SUBTYPE OF (

IfcOneDirectionRepeatFactor);

SecondRepeatFactor

IfcVector;

END_ENTITY;

Attribute definitions:

SecondRepeatFactor

A vector which specifies the relative positioning of tiles in the second direction.

Inheritance graph

ENTITY IfcTwoDirectionRepeatFactor;

ENTITY IfcRepresentationItem;

INVERSE

LayerAssignments

SET OF IfcPresentationLayerAssignment FOR AssignedItems;

StyledByItem

SET [0:1] OF IfcStyledItem FOR Item;

ENTITY IfcGeometricRepresentationItem;

ENTITY IfcOneDirectionRepeatFactor;

RepeatFactor

IfcVector;

ENTITY IfcTwoDirectionRepeatFactor;

SecondRepeatFactor

IfcVector;

END_ENTITY;