point_types.h

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 *  Point Cloud Library (PCL) - www.pointclouds.org
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#ifndef PCL_RECOGNITION_POINT_TYPES
#define PCL_RECOGNITION_POINT_TYPES

#include <pcl/pcl_base.h>
#include <pcl/point_cloud.h>
#include <pcl/point_types.h>


namespace pcl
{

  //struct EIGEN_ALIGN16 PointRGB
  //{
  //  union
  //  {
  //    union
  //    {
  //      struct
  //      {
  //        uint8_t b;
  //        uint8_t g;
  //        uint8_t r;
  //        uint8_t _unused;
  //      };
  //      float rgb;
  //    };
  //    uint32_t rgba;
  //  };

  //  inline PointRGB ()
  //  {}

  //  inline PointRGB (const uint8_t b, const uint8_t g, const uint8_t r)
  //    : b (b), g (g), r (r), _unused (0)
  //  {}

  //  EIGEN_MAKE_ALIGNED_OPERATOR_NEW
  //};


  struct EIGEN_ALIGN16 GradientXY
  {
    union
    {
      struct
      {
        float x;
        float y;
        float angle;
        float magnitude;
      };
      float data[4];
    };
    EIGEN_MAKE_ALIGNED_OPERATOR_NEW

    inline bool operator< (const GradientXY & rhs)
    {
      return (magnitude > rhs.magnitude);
    }
  };
  inline std::ostream & operator << (std::ostream & os, const GradientXY & p)
  {
    os << "(" << p.x << "," << p.y << " - " << p.magnitude << ")";
    return (os);
  }

}

#endif