MergeNode.h

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/* ========================================================================
 * Copyright (c) 2006,
 * Institute for Computer Graphics and Vision
 * Graz University of Technology
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *
 * Redistributions of source code must retain the above copyright notice,
 * this list of conditions and the following disclaimer.
 *
 * Redistributions in binary form must reproduce the above copyright
 * notice, this list of conditions and the following disclaimer in the
 * documentation and/or other materials provided with the distribution.
 *
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 * its contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
 * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
 * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
 * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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 * ========================================================================
 * PROJECT: OpenTracker
 * ======================================================================== */
/* ======================================================================= */

#ifndef _MERGENODE_H
#define _MERGENODE_H

#include "../OpenTracker.h"
#include <map>

#ifndef OT_NO_MERGENODE_SUPPORT


namespace ot {

    class OPENTRACKER_API MergeNode : public Node
    {
    public:
        enum CONF_CALCULATION { MIN = 0, MAX, MULTIPLY };

    protected:
        Event localEvent;
        float agingFactor;
        CONF_CALCULATION confCalculation;
        std::map<NodePort*, float> confidenceMap;

        MergeNode(float agingFactor_, CONF_CALCULATION confCalculation_)
            : confCalculation(confCalculation_)
        {
            agingFactor = agingFactor_;
            if (agingFactor > 1)
                agingFactor = 1;
            else if (agingFactor < 0)
                agingFactor = 0;
        }

    public: 

        virtual int isEventGenerator()
        {
            return 1;
        }

        virtual void onEventGenerated( Event& event, Node & generator);

        friend class CommonNodeFactory;
    };

} // namespace ot


#endif // OT_NO_MERGENODE_SUPPORT


#endif

/* 
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 *   End of MergeNode.cxx
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