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Open CASCADE Technology 6.5.2
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The class Direction specifies a vector that is never null.
It is a unit vector.
#include <Geom2d_Direction.hxx>

Public Member Functions | |
| Geom2d_Direction (const Standard_Real X, const Standard_Real Y) | |
| Creates a unit vector with it 2 cartesian coordinates. Raised if Sqrt( X*X + Y*Y) <= Resolution from gp. | |
| Geom2d_Direction (const gp_Dir2d &V) | |
| Creates a persistent copy of <me>. | |
| void | SetCoord (const Standard_Real X, const Standard_Real Y) |
| Assigns the coordinates X and Y to this unit vector, then normalizes it. Exceptions Standard_ConstructionError if Sqrt(X*X + Y*Y) is less than or equal to gp::Resolution(). | |
| void | SetDir2d (const gp_Dir2d &V) |
| Converts the gp_Dir2d unit vector V into this unit vector. | |
| void | SetX (const Standard_Real X) |
| Assigns a value to the X coordinate of this unit vector, then normalizes it. Exceptions Standard_ConstructionError if the value assigned causes the magnitude of the vector to become less than or equal to gp::Resolution(). | |
| void | SetY (const Standard_Real Y) |
| Assigns a value to the Y coordinate of this unit vector, then normalizes it. Exceptions Standard_ConstructionError if the value assigned causes the magnitude of the vector to become less than or equal to gp::Resolution(). | |
| gp_Dir2d | Dir2d () const |
| Converts this unit vector into a gp_Dir2d unit vector. | |
| Standard_Real | Magnitude () const |
| returns 1.0 | |
| Standard_Real | SquareMagnitude () const |
| returns 1.0 | |
| Standard_Real | Crossed (const Handle< Geom2d_Vector > &Other) const |
| Computes the cross product between <me> and <Other>. | |
| Standard_Real | operator^ (const Handle< Geom2d_Vector > &Other) const |
| void | Transform (const gp_Trsf2d &T) |
| Applies the transformation T to this unit vector, then normalizes it. | |
| Handle_Geom2d_Geometry | Copy () const |
| Creates a new object which is a copy of this unit vector. | |
| Geom2d_Direction::Geom2d_Direction | ( | const Standard_Real | X, |
| const Standard_Real | Y | ||
| ) |
| Geom2d_Direction::Geom2d_Direction | ( | const gp_Dir2d & | V | ) |
| Handle_Geom2d_Geometry Geom2d_Direction::Copy | ( | ) | const [virtual] |
Implements Geom2d_Geometry.
| Standard_Real Geom2d_Direction::Crossed | ( | const Handle< Geom2d_Vector > & | Other | ) | const [virtual] |
Implements Geom2d_Vector.
| gp_Dir2d Geom2d_Direction::Dir2d | ( | ) | const |
| Standard_Real Geom2d_Direction::Magnitude | ( | ) | const [virtual] |
Implements Geom2d_Vector.
| Standard_Real Geom2d_Direction::operator^ | ( | const Handle< Geom2d_Vector > & | Other | ) | const [inline] |
| void Geom2d_Direction::SetCoord | ( | const Standard_Real | X, |
| const Standard_Real | Y | ||
| ) |
| void Geom2d_Direction::SetDir2d | ( | const gp_Dir2d & | V | ) |
| void Geom2d_Direction::SetX | ( | const Standard_Real | X | ) |
| void Geom2d_Direction::SetY | ( | const Standard_Real | Y | ) |
| Standard_Real Geom2d_Direction::SquareMagnitude | ( | ) | const [virtual] |
Implements Geom2d_Vector.
| void Geom2d_Direction::Transform | ( | const gp_Trsf2d & | T | ) | [virtual] |
Implements Geom2d_Geometry.
1.7.4