Class Ifc4x1::IfcAxis2Placement2D¶
Defined in File Ifc4x1.h
Nested Relationships¶
This class is a nested type of Struct Ifc4x1.
Inheritance Relationships¶
Base Type¶
public Ifc4x1::IfcPlacement
(Class Ifc4x1::IfcPlacement)
Class Documentation¶
-
class
Ifc4x1
::
IfcAxis2Placement2D
: public Ifc4x1::IfcPlacement¶ Definition from ISO/CD 10303-42:1992: The location and orientation in two dimensional space of two mutually perpendicular axes. An axis2_placement_2d is defined in terms of a point, (inherited from the placement supertype), and an axis. It can be used to locate and originate an object in two dimensional space and to define a placement coordinate system. The class includes a point which forms the origin of the placement coordinate system. A direction vector is required to complete the definition of the placement coordinate system. The reference direction defines the placement X axis direction, the placement Y axis is derived from this.
If the RefDirection attribute is not given, the placement defaults to P[1] (x-axis) as [1.,0.] and P[2] (y-axis) as [0.,1.].
NOTE Corresponding ISO 10303 name: axis2_placement_2d, please refer to ISO/IS 10303-42:1994, p. 28 for the final definition of the formal standard.
HISTORY New entity in IFC Release 1.5.
Figure 275 illustrates the definition of the IfcAxis2Placement2D within the two-dimensional coordinate system.
Figure 275 — Axis2 placement 2D
Public Types
-
typedef IfcTemplatedEntityList<IfcAxis2Placement2D>
list
¶
Public Functions
-
bool
hasRefDirection
() const¶ Whether the optional attribute RefDirection is defined for this IfcAxis2Placement2D.
-
::Ifc4x1::IfcDirection *
RefDirection
() const¶ The direction used to determine the direction of the local X axis. If a value is omited that it defaults to [1.0, 0.0.].
-
void
setRefDirection
(::Ifc4x1::IfcDirection *v)¶
-
IfcAxis2Placement2D
(IfcEntityInstanceData *e)¶
-
IfcAxis2Placement2D
(::Ifc4x1::IfcCartesianPoint *v1_Location, ::Ifc4x1::IfcDirection *v2_RefDirection)¶
-
typedef IfcTemplatedEntityList<IfcAxis2Placement2D>