IfcPreDefinedDimensionSymbol

Definition from IAI: The pre defined dimension symbol is a pre defined symbol for the purpose to identify a dimension symbol by name. Allowable names are:

'arc length',
'conical taper',
'counterbore',
'countersink',
'depth',
'diameter',
'plus minus',
'slope',
'spherical diameter',
'spherical radius',
'square'

NOTE: The IfcPreDefinedDimensionSymbol is an entity that had been adopted from ISO 10303, Industrial automation systems and integration—Product data representation and exchange, Part 202: Application protocol: Associative draughting.

NOTE Corresponding STEP name: pre_defined_dimension_symbol. Please refer to ISO/IS 10303-202:1994 page 201 for the final definition of the formal standard.

HISTORY New entity in Release IFC2x 2nd Edition.

Illustration from ISO 10303-202, page 203:

EXPRESS specification:

ENTITY IfcPreDefinedDimensionSymbol

SUBTYPE OF (

IfcPreDefinedSymbol);

WHERE

WR31

SELF\IfcPreDefinedItem.Name IN ['arc length','conical taper','counterbore', 'countersink','depth','diameter','plus minus','radius', 'slope','spherical diameter','spherical radius','square'];

END_ENTITY;

Inheritance graph

ENTITY IfcPreDefinedDimensionSymbol;

ENTITY IfcPreDefinedItem;

Name

IfcLabel;

ENTITY IfcPreDefinedSymbol;

ENTITY IfcPreDefinedDimensionSymbol;

END_ENTITY;