// This file is generated by WOK (CPPExt). // Please do not edit this file; modify original file instead. // The copyright and license terms as defined for the original file apply to // this header file considered to be the "object code" form of the original source. #ifndef _Geom_Axis2Placement_HeaderFile #define _Geom_Axis2Placement_HeaderFile #ifndef _Standard_HeaderFile #include #endif #ifndef _Standard_DefineHandle_HeaderFile #include #endif #ifndef _Handle_Geom_Axis2Placement_HeaderFile #include #endif #ifndef _gp_Dir_HeaderFile #include #endif #ifndef _Geom_AxisPlacement_HeaderFile #include #endif #ifndef _Handle_Geom_Geometry_HeaderFile #include #endif class Standard_ConstructionError; class gp_Ax2; class gp_Pnt; class gp_Dir; class gp_Trsf; class Geom_Geometry; //! Describes a right-handed coordinate system in 3D space.
//! A coordinate system is defined by:
//! - its origin, also termed the "Location point" of the coordinate system,
//! - three orthogonal unit vectors, termed respectively
//! the "X Direction", "Y Direction" and "Direction" (or
//! "main Direction") of the coordinate system.
//! As a Geom_Axis2Placement coordinate system is
//! right-handed, its "Direction" is always equal to the
//! cross product of its "X Direction" and "Y Direction".
//! The "Direction" of a coordinate system is called the
//! "main Direction" because when this unit vector is
//! modified, the "X Direction" and "Y Direction" are
//! recomputed, whereas when the "X Direction" or "Y
//! Direction" is changed, the "main Direction" is
//! retained. The "main Direction" is also the "Z Direction".
//! Note: Geom_Axis2Placement coordinate systems
//! provide the same kind of "geometric" services as
//! gp_Ax2 coordinate systems but have more complex
//! data structures. The geometric objects provided by
//! the Geom package use gp_Ax2 objects to include
//! coordinate systems in their data structures, or to
//! define the geometric transformations, which are applied to them.
//! Geom_Axis2Placement coordinate systems are
//! used in a context where they can be shared by
//! several objects contained inside a common data structure.
class Geom_Axis2Placement : public Geom_AxisPlacement { public: //! Returns a transient copy of A2.
Standard_EXPORT Geom_Axis2Placement(const gp_Ax2& A2); //! P is the origin of the axis placement, N is the main
//! direction of the axis placement and Vx is the "XDirection".
//! If the two directions N and Vx are not orthogonal the
//! "XDirection" is computed as follow :
//! XDirection = N ^ (Vx ^ N).
//! Raised if N and Vx are parallel.
Standard_EXPORT Geom_Axis2Placement(const gp_Pnt& P,const gp_Dir& N,const gp_Dir& Vx); //! Assigns the origin and the three unit vectors of A2 to
//! this coordinate system.
Standard_EXPORT void SetAx2(const gp_Ax2& A2) ; //! Changes the main direction of the axis placement.
//! The "Xdirection" is modified :
//! New XDirection = V ^ (Previous_Xdirection ^ V).
//! Raised if V and the previous "XDirection" are parallel
//! because it is impossible to calculate the new "XDirection"
//! and the new "YDirection".
Standard_EXPORT void SetDirection(const gp_Dir& V) ; //! Changes the "XDirection" of the axis placement, Vx is the
//! new "XDirection". If Vx is not normal to the main direction
//! then "XDirection" is computed as follow :
//! XDirection = Direction ^ ( Vx ^ Direction).
//! The main direction is not modified.
//! Raised if Vx and "Direction" are parallel.
Standard_EXPORT void SetXDirection(const gp_Dir& Vx) ; //! Changes the "YDirection" of the axis placement, Vy is the
//! new "YDirection". If Vy is not normal to the main direction
//! then "YDirection" is computed as follow :
//! YDirection = Direction ^ ( Vy ^ Direction).
//! The main direction is not modified. The "XDirection" is
//! modified.
//! Raised if Vy and the main direction are parallel.
Standard_EXPORT void SetYDirection(const gp_Dir& Vy) ; //! Returns a non transient copy of .
Standard_EXPORT gp_Ax2 Ax2() const; //! Returns the "XDirection". This is a unit vector.
Standard_EXPORT const gp_Dir& XDirection() const; //! Returns the "YDirection". This is a unit vector.
Standard_EXPORT const gp_Dir& YDirection() const; //! Transforms an axis placement with a Trsf.
//! The "Location" point, the "XDirection" and the
//! "YDirection" are transformed with T. The resulting
//! main "Direction" of is the cross product between
//! the "XDirection" and the "YDirection" after transformation.
Standard_EXPORT void Transform(const gp_Trsf& T) ; //! Creates a new object which is a copy of this coordinate system.
Standard_EXPORT Handle_Geom_Geometry Copy() const; DEFINE_STANDARD_RTTI(Geom_Axis2Placement) protected: private: Standard_EXPORT Geom_Axis2Placement(const gp_Pnt& P,const gp_Dir& Vz,const gp_Dir& Vx,const gp_Dir& Vy); gp_Dir vxdir; gp_Dir vydir; }; // other Inline functions and methods (like "C++: function call" methods) #endif