source: GTP/trunk/Lib/Vis/Preprocessing/src/RayCaster.h @ 1521

#ifndef _RayCaster_H__
#define _RayCaster_H__

#include "Containers.h"
#include <string>
using namespace std;


namespace GtpVisibilityPreprocessor {


class Intersectable;
class VssRay;
class SimpleRayContainer;
class AxisAlignedBox3;
class Vector3;
struct VssRayContainer;
class Preprocessor;

/** This class provides an interface for ray casting.
*/
class RayCaster
{
public:
        
        enum {
          INTERNAL_RAYCASTER = 0,
          INTEL_RAYCASTER
        };

        RayCaster(const Preprocessor &preprocessor);

        virtual ~RayCaster();

        virtual int Type() const = 0;

        /** Wrapper for casting single ray.
        */
        VssRay *CastSingleRay(
                const Vector3 &viewPoint,
                const Vector3 &direction,
                const float probability,
        const AxisAlignedBox3 &box
                );

        virtual int CastRay(
                const Vector3 &viewPoint,
                const Vector3 &direction,
                const float probability,
        VssRayContainer &vssRays,
                const AxisAlignedBox3 &box,
                const bool castDoubleRay
                ) = 0;

         virtual void CastRays16(
                 const int i,
                 SimpleRayContainer &rays, 
                 VssRayContainer &vssRays,
                 const AxisAlignedBox3 &sbox,
                 const bool castDoubleRay
                 ) = 0;
        

protected:

        int ProcessRay(
                         const Vector3 &viewPoint,
                         const Vector3 &direction,
                         Intersectable *objectA,
                         Vector3 &pointA,
                         const Vector3 &normalA,
                         Intersectable *objectB,
                         Vector3 &pointB,
                         const Vector3 &normalB,
                         const float probability,
                         VssRayContainer &vssRays,
                         const AxisAlignedBox3 &box
                         );

        
        const Preprocessor &mPreprocessor;
};


}

#endif