Open CASCADE Technology
6.9.1

Describes a plane. A plane is positioned in space with a coordinate system (a gp_Ax3 object), such that the plane is defined by the origin, "X Direction" and "Y Direction" of this coordinate system, which is the "local coordinate system" of the plane. The "main Direction" of the coordinate system is a vector normal to the plane. It gives the plane an implicit orientation such that the plane is said to be "direct", if the coordinate system is righthanded, or "indirect" in the other case. Note: when a gp_Pln plane is converted into a Geom_Plane plane, some implicit properties of its local coordinate system are used explicitly: More...
#include <gp_Pln.hxx>
Public Member Functions  
gp_Pln ()  
Creates a plane coincident with OXY plane of the reference coordinate system. More...  
gp_Pln (const gp_Ax3 &A3)  
The coordinate system of the plane is defined with the axis placement A3. The "Direction" of A3 defines the normal to the plane. The "Location" of A3 defines the location (origin) of the plane. The "XDirection" and "YDirection" of A3 define the "XAxis" and the "YAxis" of the plane used to parametrize the plane. More...  
gp_Pln (const gp_Pnt &P, const gp_Dir &V)  
Creates a plane with the "Location" point. More...  
gp_Pln (const Standard_Real A, const Standard_Real B, const Standard_Real C, const Standard_Real D)  
Creates a plane from its cartesian equation : A * X + B * Y + C * Z + D = 0.0 Raises ConstructionError if Sqrt (A*A + B*B + C*C) <= Resolution from gp. More...  
void  Coefficients (Standard_Real &A, Standard_Real &B, Standard_Real &C, Standard_Real &D) const 
Returns the coefficients of the plane's cartesian equation : A * X + B * Y + C * Z + D = 0. More...  
void  SetAxis (const gp_Ax1 &A1) 
Modifies this plane, by redefining its local coordinate system so that. More...  
void  SetLocation (const gp_Pnt &Loc) 
Changes the origin of the plane. More...  
void  SetPosition (const gp_Ax3 &A3) 
Changes the local coordinate system of the plane. More...  
void  UReverse () 
Reverses the U parametrization of the plane reversing the XAxis. More...  
void  VReverse () 
Reverses the V parametrization of the plane reversing the YAxis. More...  
Standard_Boolean  Direct () const 
returns true if the Ax3 is right handed. More...  
const gp_Ax1 &  Axis () const 
Returns the plane's normal Axis. More...  
const gp_Pnt &  Location () const 
Returns the plane's location (origin). More...  
const gp_Ax3 &  Position () const 
Returns the local coordinate system of the plane . More...  
Standard_Real  Distance (const gp_Pnt &P) const 
Computes the distance between <me> and the point. More...  
Standard_Real  Distance (const gp_Lin &L) const 
Computes the distance between <me> and the line <L>. More...  
Standard_Real  Distance (const gp_Pln &Other) const 
Computes the distance between two planes. More...  
Standard_Real  SquareDistance (const gp_Pnt &P) const 
Computes the square distance between <me> and the point. More...  
Standard_Real  SquareDistance (const gp_Lin &L) const 
Computes the square distance between <me> and the line <L>. More...  
Standard_Real  SquareDistance (const gp_Pln &Other) const 
Computes the square distance between two planes. More...  
gp_Ax1  XAxis () const 
Returns the X axis of the plane. More...  
gp_Ax1  YAxis () const 
Returns the Y axis of the plane. More...  
Standard_Boolean  Contains (const gp_Pnt &P, const Standard_Real LinearTolerance) const 
Returns true if this plane contains the point P. This means that. More...  
Standard_Boolean  Contains (const gp_Lin &L, const Standard_Real LinearTolerance, const Standard_Real AngularTolerance) const 
Returns true if this plane contains the line L. This means that. More...  
void  Mirror (const gp_Pnt &P) 
gp_Pln  Mirrored (const gp_Pnt &P) const 
Performs the symmetrical transformation of a plane with respect to the point. More...  
void  Mirror (const gp_Ax1 &A1) 
gp_Pln  Mirrored (const gp_Ax1 &A1) const 
Performs the symmetrical transformation of a plane with respect to an axis placement which is the axis of the symmetry. The transformation is performed on the "Location" point, on the "XAxis" and the "YAxis". The resulting normal direction is the cross product between the "XDirection" and the "YDirection" after transformation if the initial plane was right handed, else it is the opposite. More...  
void  Mirror (const gp_Ax2 &A2) 
gp_Pln  Mirrored (const gp_Ax2 &A2) const 
Performs the symmetrical transformation of a plane with respect to an axis placement. The axis placement <A2> locates the plane of the symmetry. The transformation is performed on the "Location" point, on the "XAxis" and the "YAxis". The resulting normal direction is the cross product between the "XDirection" and the "YDirection" after transformation if the initial plane was right handed, else it is the opposite. More...  
void  Rotate (const gp_Ax1 &A1, const Standard_Real Ang) 
gp_Pln  Rotated (const gp_Ax1 &A1, const Standard_Real Ang) const 
rotates a plane. A1 is the axis of the rotation. Ang is the angular value of the rotation in radians. More...  
void  Scale (const gp_Pnt &P, const Standard_Real S) 
gp_Pln  Scaled (const gp_Pnt &P, const Standard_Real S) const 
Scales a plane. S is the scaling value. More...  
void  Transform (const gp_Trsf &T) 
gp_Pln  Transformed (const gp_Trsf &T) const 
Transforms a plane with the transformation T from class Trsf. The transformation is performed on the "Location" point, on the "XAxis" and the "YAxis". The resulting normal direction is the cross product between the "XDirection" and the "YDirection" after transformation. More...  
void  Translate (const gp_Vec &V) 
gp_Pln  Translated (const gp_Vec &V) const 
Translates a plane in the direction of the vector V. The magnitude of the translation is the vector's magnitude. More...  
void  Translate (const gp_Pnt &P1, const gp_Pnt &P2) 
gp_Pln  Translated (const gp_Pnt &P1, const gp_Pnt &P2) const 
Translates a plane from the point P1 to the point P2. More...  
const gp_Ax3 &  _CSFDB_Getgp_Plnpos () const 
Describes a plane. A plane is positioned in space with a coordinate system (a gp_Ax3 object), such that the plane is defined by the origin, "X Direction" and "Y Direction" of this coordinate system, which is the "local coordinate system" of the plane. The "main Direction" of the coordinate system is a vector normal to the plane. It gives the plane an implicit orientation such that the plane is said to be "direct", if the coordinate system is righthanded, or "indirect" in the other case. Note: when a gp_Pln plane is converted into a Geom_Plane plane, some implicit properties of its local coordinate system are used explicitly:
gp_Pln::gp_Pln  (  ) 
Creates a plane coincident with OXY plane of the reference coordinate system.
gp_Pln::gp_Pln  (  const gp_Ax3 &  A3  ) 
The coordinate system of the plane is defined with the axis placement A3. The "Direction" of A3 defines the normal to the plane. The "Location" of A3 defines the location (origin) of the plane. The "XDirection" and "YDirection" of A3 define the "XAxis" and the "YAxis" of the plane used to parametrize the plane.
Creates a plane with the "Location" point.
and the normal direction <V>.
gp_Pln::gp_Pln  (  const Standard_Real  A, 
const Standard_Real  B,  
const Standard_Real  C,  
const Standard_Real  D  
) 
Creates a plane from its cartesian equation : A * X + B * Y + C * Z + D = 0.0 Raises ConstructionError if Sqrt (A*A + B*B + C*C) <= Resolution from gp.

inline 
const gp_Ax1& gp_Pln::Axis  (  )  const 
Returns the plane's normal Axis.
void gp_Pln::Coefficients  (  Standard_Real &  A, 
Standard_Real &  B,  
Standard_Real &  C,  
Standard_Real &  D  
)  const 
Returns the coefficients of the plane's cartesian equation : A * X + B * Y + C * Z + D = 0.
Standard_Boolean gp_Pln::Contains  (  const gp_Pnt &  P, 
const Standard_Real  LinearTolerance  
)  const 
Returns true if this plane contains the point P. This means that.
Standard_Boolean gp_Pln::Contains  (  const gp_Lin &  L, 
const Standard_Real  LinearTolerance,  
const Standard_Real  AngularTolerance  
)  const 
Returns true if this plane contains the line L. This means that.
Standard_Boolean gp_Pln::Direct  (  )  const 
returns true if the Ax3 is right handed.
Standard_Real gp_Pln::Distance  (  const gp_Pnt &  P  )  const 
Computes the distance between <me> and the point.
.
Standard_Real gp_Pln::Distance  (  const gp_Lin &  L  )  const 
Computes the distance between <me> and the line <L>.
Standard_Real gp_Pln::Distance  (  const gp_Pln &  Other  )  const 
Computes the distance between two planes.
const gp_Pnt& gp_Pln::Location  (  )  const 
Returns the plane's location (origin).
void gp_Pln::Mirror  (  const gp_Pnt &  P  ) 
void gp_Pln::Mirror  (  const gp_Ax1 &  A1  ) 
void gp_Pln::Mirror  (  const gp_Ax2 &  A2  ) 
Performs the symmetrical transformation of a plane with respect to the point.
which is the center of the symmetry Warnings : The normal direction to the plane is not changed. The "XAxis" and the "YAxis" are reversed.
Performs the symmetrical transformation of a plane with respect to an axis placement which is the axis of the symmetry. The transformation is performed on the "Location" point, on the "XAxis" and the "YAxis". The resulting normal direction is the cross product between the "XDirection" and the "YDirection" after transformation if the initial plane was right handed, else it is the opposite.
Performs the symmetrical transformation of a plane with respect to an axis placement. The axis placement <A2> locates the plane of the symmetry. The transformation is performed on the "Location" point, on the "XAxis" and the "YAxis". The resulting normal direction is the cross product between the "XDirection" and the "YDirection" after transformation if the initial plane was right handed, else it is the opposite.
const gp_Ax3& gp_Pln::Position  (  )  const 
Returns the local coordinate system of the plane .
void gp_Pln::Rotate  (  const gp_Ax1 &  A1, 
const Standard_Real  Ang  
) 
gp_Pln gp_Pln::Rotated  (  const gp_Ax1 &  A1, 
const Standard_Real  Ang  
)  const 
rotates a plane. A1 is the axis of the rotation. Ang is the angular value of the rotation in radians.
void gp_Pln::Scale  (  const gp_Pnt &  P, 
const Standard_Real  S  
) 
gp_Pln gp_Pln::Scaled  (  const gp_Pnt &  P, 
const Standard_Real  S  
)  const 
Scales a plane. S is the scaling value.
void gp_Pln::SetAxis  (  const gp_Ax1 &  A1  ) 
Modifies this plane, by redefining its local coordinate system so that.
void gp_Pln::SetLocation  (  const gp_Pnt &  Loc  ) 
Changes the origin of the plane.
void gp_Pln::SetPosition  (  const gp_Ax3 &  A3  ) 
Changes the local coordinate system of the plane.
Standard_Real gp_Pln::SquareDistance  (  const gp_Pnt &  P  )  const 
Computes the square distance between <me> and the point.
.
Standard_Real gp_Pln::SquareDistance  (  const gp_Lin &  L  )  const 
Computes the square distance between <me> and the line <L>.
Standard_Real gp_Pln::SquareDistance  (  const gp_Pln &  Other  )  const 
Computes the square distance between two planes.
void gp_Pln::Transform  (  const gp_Trsf &  T  ) 
Transforms a plane with the transformation T from class Trsf. The transformation is performed on the "Location" point, on the "XAxis" and the "YAxis". The resulting normal direction is the cross product between the "XDirection" and the "YDirection" after transformation.
void gp_Pln::Translate  (  const gp_Vec &  V  ) 
Translates a plane in the direction of the vector V. The magnitude of the translation is the vector's magnitude.
Translates a plane from the point P1 to the point P2.
void gp_Pln::UReverse  (  ) 
Reverses the U parametrization of the plane reversing the XAxis.
void gp_Pln::VReverse  (  ) 
Reverses the V parametrization of the plane reversing the YAxis.
gp_Ax1 gp_Pln::XAxis  (  )  const 
Returns the X axis of the plane.
gp_Ax1 gp_Pln::YAxis  (  )  const 
Returns the Y axis of the plane.