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C:/temp/src/j2k/Beta/3D/Vector3D.hpp

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#ifndef __J2K__Vector3D_HPP__
#define __J2K__Vector3D_HPP__

#include <j2k/Fred/3d/Sommet.hpp>

class Vector3DH {
public:
 Vector3DH() { }

 Vector3DH( const Sommet3DH& a1, const Sommet3DH& b1 ) : a( a1 ), b( b1 ) { }

 Vector3DH( const Vector3DH& v ): a( v.a ), b( v.b ) { }

 // Assignment
 Vector3DH& operator=( const Vector3DH& v );

 // Theta vertical angle of the Vector to the XoY plan (in Radians).
 realtype angle_ver();

 // cos & sin of the Theta vertical angle of the Vector.
 void cos_sinangle_ver( realtype& cos_Theta, realtype& sin_Theta );
 realtype cosangle_ver();
 realtype sinangle_ver();

 // Phi horizontal angle of the vector (in Radians)
 // on the XoY plan from the X axes
 // in the trigonometric direction for a direct repere.
 realtype angle_hor();

 // cos & sin of the Phi horizontal angle of the vector

 // Special case:
 // =============
 // When the vector is vertical the projection on the XoY plan is a dot.
 // In that case, there is no calculation to be done,
 // so we suppose that phi = 0.

 void cos_sinangle_hor( realtype& cos_Phi, realtype& sin_Phi );
 realtype cosangle_hor();
 realtype sinangle_hor();

 // Norme of vector.
 realtype norme();

 // Composante X of vector.
 realtype compox();

 // Composante Y of vector.
 realtype compoy();

 // Composante Z of vector.
 realtype compoz();

 // Normalisation of vector.
 void normalisation();

 // Scalar product of a vector by another.
 realtype produit_scalaire( Vector3DH& v );

 // Vectorial product of a vector by another.
 // Application a l'obtention du vecteur normal 1.
 void vecteur_normal( Vector3DH& v, Sommet3DH& result );

 // Vectorial product of a vector by another.
 // Application a l'obtention of vector normal 2.
 void vecteur_normal( Vector3DH& v, Vector3DH& result );

public:
 Sommet3DH a, b;
};

// Read from a formated stream
istream& operator>>( istream& in,  const Vector3DH& v );

// Write to a formated stream
ostream& operator<<( ostream& out, const Vector3DH& v );

#endif 

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