mlLine.h

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/*************************************************************************************
**
** Copyright 2010, MeVis Medical Solutions AG
**
** The user may use this file in accordance with the license agreement provided with
** the Software or, alternatively, in accordance with the terms contained in a
** written agreement between the user and MeVis Medical Solutions AG.
**
** For further information use the contact form at https://www.mevislab.de/contact
**
**************************************************************************************/
 
#ifndef ML_LINE_H
#define ML_LINE_H

 
#include "mlLinearAlgebraSystem.h"
#include "mlVector3.h"
 
ML_LA_START_NAMESPACE
 
  //----------------------------------------------------------------------------------
  //----------------------------------------------------------------------------------
  class ML_LINEAR_ALGEBRA_EXPORT Line
  {
 
  public:
    Line();

    Line(const Vector3& p0, const Vector3& p1);

    bool setValue(const Vector3& p0, const Vector3& p1);

    Vector3 getClosestPoint(const Vector3& point) const;

    double distance(const Vector3& point) const;

    inline const Vector3& getPosition() const
    { return _pos; }

    inline const Vector3& getDirection() const
    { return _dir; }

    inline Vector3 getVector(double lambda) const
    { return _pos + lambda * _dir; }

    bool getClosestPoints(const Line& line2, Vector3& pointOnLine, Vector3& pointOnLine2) const;
 
  private:

    Vector3 _pos;

    Vector3 _dir;
  };
 
ML_LA_END_NAMESPACE
 
#endif // __mlLine_H