PolygonalEnergy.h

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/* $Id: PolygonalEnergy.h,v 1.4 2002/12/05 19:30:18 cvs Exp $ */

#ifndef __POLYGONAL_ENERGY_H
#define __POLYGONAL_ENERGY_H

#include <esg/energy/EnergyCoat.h>
#include <esg/AutoPtr.h>
#include <esg/mesh/Mesh.h>


namespace esg {

class OGSCENE_EXPORT PolygonalEnergy : public EnergyCoat {
protected:
    Sgi::hash_map<int, Vector3> _energy;
    AutoPtr<Mesh> *             _pMesh;

public:
    enum Regions { VERTEX_BASED, FACET_BASED, UNKNOWN } _regions;

public:
    PolygonalEnergy (AutoPtr<Mesh>* m, Regions r = UNKNOWN)
        : _pMesh(m), _regions(r) {
        if (_pMesh) _pMesh->registerReferer(this);
    }

    virtual ~PolygonalEnergy() { AutoPtr<Mesh>::destroy(_pMesh, this); }

    virtual Type type (void) const { return POLYGONAL; }

    virtual bool getRegionEnergy (int id, Vector3& val) const {
        Sgi::hash_map<int, Vector3>::const_iterator iter = _energy.find(id);
        //if (iter == _energy.end() || (*iter).first != id) return false;
        if (iter == _energy.end()) return false;
        val.set((*iter).second);
        return true;
    }
    
    virtual bool setRegionEnergy (int id, const Vector3& val) {
        //pair<hash_map<int, Vector3>::iterator, bool> res=_energy.insert(val);
        //return result.second;
        return (_energy[id] = val);
    }
    
    AutoPtr<Mesh>* getMesh (void) { return _pMesh; }
    Regions        getRegionsDescr (void) const { return _regions; }
    void           setRegionsDescr (Regions r)  { _regions = r; }
};

}; // namespace

#endif // __POLYGONAL_ENERGY_H

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