vpPolygon3D.h

/****************************************************************************
 *
 * This file is part of the ViSP software.
 * Copyright (C) 2005 - 2015 by Inria. All rights reserved.
 *
 * This software is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * ("GPL") version 2 as published by the Free Software Foundation.
 * See the file LICENSE.txt at the root directory of this source
 * distribution for additional information about the GNU GPL.
 *
 * For using ViSP with software that can not be combined with the GNU
 * GPL, please contact Inria about acquiring a ViSP Professional
 * Edition License.
 *
 * See http://visp.inria.fr for more information.
 *
 * This software was developed at:
 * Inria Rennes - Bretagne Atlantique
 * Campus Universitaire de Beaulieu
 * 35042 Rennes Cedex
 * France
 *
 * If you have questions regarding the use of this file, please contact
 * Inria at visp@inria.fr
 *
 * This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
 * WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 *
 * Description:
 * Implements a polygon of the model used by the model-based tracker.
 *
 * Authors:
 * Aurelien Yol
 *
 *****************************************************************************/

#ifndef vpPolygon3D_HH
#define vpPolygon3D_HH

#include <vector>

#include <visp3/core/vpPoint.h>
#include <visp3/core/vpPixelMeterConversion.h>
#include <visp3/core/vpMeterPixelConversion.h>


class VISP_EXPORT vpPolygon3D
{
public:
  typedef enum
    {
      NO_CLIPPING = 0,
      NEAR_CLIPPING = 1,
      FAR_CLIPPING = 2,
      LEFT_CLIPPING = 4,
      RIGHT_CLIPPING = 8,
      UP_CLIPPING = 16,
      DOWN_CLIPPING = 32,
      FOV_CLIPPING = 60,
      ALL_CLIPPING = 63
    } vpPolygon3DClippingType;
  
public:
  unsigned int nbpt;
  unsigned int nbCornersInsidePrev;
  vpPoint *p;
  std::vector<std::pair<vpPoint,unsigned int> > polyClipped;
  unsigned int clippingFlag;
  double distNearClip;
  double distFarClip;
  
private:            
            bool          getClippedPointsFovGeneric(const vpPoint &p1, const vpPoint &p2,
                                           vpPoint &p1Clipped, vpPoint &p2Clipped, 
                                           unsigned int &p1ClippedInfo, unsigned int &p2ClippedInfo,
                                           const vpColVector &normal,
                                           const unsigned int &flag);

            bool          getClippedPointsDistance(const vpPoint &p1, const vpPoint &p2,
                                           vpPoint &p1Clipped, vpPoint &p2Clipped,
                                           unsigned int &p1ClippedInfo, unsigned int &p2ClippedInfo,
                                           const unsigned int &flag, const double &distance);
    
public: 
            vpPolygon3D() ;
            vpPolygon3D(const vpPolygon3D& mbtp) ;
            virtual       ~vpPolygon3D() ;
                                    
            void          addPoint(const unsigned int n, const vpPoint &P) ;               
          
            void          changeFrame(const vpHomogeneousMatrix &cMo) ;
            
            void          computePolygonClipped(const vpCameraParameters &cam = vpCameraParameters());
   
  inline    unsigned int  getClipping() const { return clippingFlag; } 
  
  inline    double       getFarClippingDistance() const { return distFarClip; }
            
  inline    unsigned int  getNbPoint() const {return nbpt ;}  

  inline    unsigned int  getNbCornerInsidePrevImage() const { return nbCornersInsidePrev; }

            unsigned int  getNbCornerInsideImage(const vpImage<unsigned char>& I, const vpCameraParameters &cam);
            
  inline    double        getNearClippingDistance() const { return distNearClip; }
          
            vpPoint &     getPoint(const unsigned int _index);
            
  std::vector<vpImagePoint> getRoi(const vpCameraParameters &cam);

  std::vector<vpImagePoint> getRoi(const vpCameraParameters &cam, const vpHomogeneousMatrix &cMo);       

            void          getRoiClipped(const vpCameraParameters &cam, std::vector<vpImagePoint>&roi);

            void          getRoiClipped(const vpCameraParameters &cam, std::vector<vpImagePoint>&roi, const vpHomogeneousMatrix &cMo);
    
            void          getRoiClipped(const vpCameraParameters &cam, std::vector<std::pair<vpImagePoint,unsigned int> > &roi);

            void          getRoiClipped(const vpCameraParameters &cam, std::vector<std::pair<vpImagePoint,unsigned int> > &roi, const vpHomogeneousMatrix &cMo);

#ifdef VISP_BUILD_DEPRECATED_FUNCTIONS

  vp_deprecated void      getRoiClipped(std::vector<vpPoint> &points);
#endif

            void          getPolygonClipped(std::vector<std::pair<vpPoint,unsigned int> > &poly);

            void          getPolygonClipped(std::vector<vpPoint> &poly);

            vpPolygon3D& operator=(const vpPolygon3D& mbtp) ;

  inline    void          setClipping(const unsigned int &flags) { clippingFlag = flags; }
  
  inline    void          setFarClippingDistance(const double &dist) { distFarClip = dist; clippingFlag = (clippingFlag | vpPolygon3D::FAR_CLIPPING);}

  virtual        void     setNbPoint(const unsigned int nb)  ;
  
  inline    void          setNearClippingDistance(const double &dist) { distNearClip = dist; clippingFlag = (clippingFlag | vpPolygon3D::NEAR_CLIPPING);}
  
public:
  static   void           getClippedPolygon(const std::vector<vpPoint> &ptIn, std::vector<vpPoint> &ptOut, const vpHomogeneousMatrix &cMo,
                                            const unsigned int &clippingFlags, const vpCameraParameters &cam = vpCameraParameters(),
                                            const double &znear = 0.001, const double &zfar = 100 );
  static   void           getMinMaxRoi(const std::vector<vpImagePoint> &roi, int & i_min, int &i_max, int &j_min, int &j_max);
  static   bool           roiInsideImage(const vpImage<unsigned char>& I, const std::vector<vpImagePoint>& corners);
};

#endif