harmonicCageResampler.h

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#ifndef AIMS_RESAMPLING_HARMONICCAGERESAMPLER_H
#define AIMS_RESAMPLING_HARMONICCAGERESAMPLER_H

#include <aims/data/data.h>
#include <aims/mesh/surface.h>
#include <aims/distancemap/stlsort.h> //for Point3dfCompare

namespace aims
{

class HarmonicCageMeshResampler
{
public:
        HarmonicCageMeshResampler(const AimsSurfaceTriangle &cage,
                                                float spacing);
        HarmonicCageMeshResampler(const AimsData<unsigned int> &cage,
                        std::vector<Point3df> &controls,
                        short background=0, short border=1, short inside=2);
        ~HarmonicCageMeshResampler() { }

public:
        const Point3df &getControl(int ind) const;
        const AimsData<float> &get_image_coords(int ind) const;
        void set_keep_image_coords(bool state)
                { _keep_image_coords = state; }

public:
        void moveControl(int ind, const Point3df &p);
        Point3df coordinate(const Point3df &p) const;
        AimsSurfaceTriangle *coordinates(const AimsSurfaceTriangle &mesh) const;
        void computeCoordinates(float threshold=10e-4);

protected:
        AimsData<unsigned int>          _cage;
        std::vector<Point3df>           _controls;
        short                           _background;
        short                           _border;
        short                           _inside;
        bool                            _keep_image_coords;
        std::vector<AimsData<float> >   _image_coords;
        std::map<Point3df, std::map<int, float>, Point3dfCompare > _weights;
};


inline
Point3df HarmonicCageMeshResampler::coordinate(const Point3df &p) const
{
        int             ind;
        Point3df        p2(rint(p[0]), rint(p[1]), rint(p[2]));
        const std::map<int, float>      &w = (*(_weights.find(p2))).second;
        std::map<int, float>::const_iterator    i, e;

        Point3df res(0, 0, 0);
        for (i = w.begin(), e = w.end(); i != e; ++i)
        {
                ind = (*i).first;
                res += (*i).second * _controls[ind];
        }
        return res;
}


inline const AimsData<float> &
HarmonicCageMeshResampler::get_image_coords(int ind) const
{
        return _image_coords[ind];
}

};
 
#endif