finiteElementSmoother_d.h

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#ifndef AIMS_PRIMALSKETCH_FINITEELEMENTSMOOTHER_D_H
#define AIMS_PRIMALSKETCH_FINITEELEMENTSMOOTHER_D_H
 
#include <cstdlib>
#include <aims/primalsketch/finiteElementSmoother.h>
#include <aims/mesh/curv.h>
#include <cartobase/type/converter.h>
#include <stdlib.h>
#include <math.h>
#include <float.h>
 
namespace aims {
 
template<int D, typename T> Texture<T> FiniteElementSmoother<D,T>::doSmoothing(const Texture<T> & ima, int maxiter, bool verbose)
{
        Texture<T>    textOut;
        TimeTexture<T> textIn, textTmp1;
        TimeTexture<float> textTmp2;
        Texture<float>    smooth, lapl;
        float                   s;
        unsigned                i,n=ima.nItem();
        int                     iter;
        //float threshold=0.1;
        
        carto::Converter<TimeTexture<T> , TimeTexture<float> > conv;
        textIn[0]=ima;
 
        if (maxiter >= 0)
        {
                conv.convert(textIn, textTmp2);
                smooth=textTmp2[0];
                if (verbose) std::cout << "Starting smoothing in " << maxiter << " iterations" << std::endl;
                for (iter=0; iter< maxiter; ++iter)
                {
                        lapl =  AimsMeshLaplacian(smooth, weightLapl);
                        //lapl =  AimsMeshLaplacian(smooth, weightLapl, threshold);
                        //lapl =  AimsMeshLaplacian(smooth, weightLapl, FLT_MAX);
                        for ( i=0; i<n; ++i)
                        {
                                s = smooth.item(i) + _dt * lapl.item(i);
                                smooth.item(i) = s;
                        }
                }
                if (verbose) std::cout  << std::endl;
 
                textTmp2[0]=smooth;
 
                carto::Converter< TimeTexture<float> , TimeTexture<T> > conv2;
                conv2.convert( textTmp2, textTmp1);
 
                textOut=textTmp1[0];
                return textOut;
        }
        else
        {
                std::cerr << "diffusionConvolution Smoother: must have tIn < tOut" << std::endl;
                exit(EXIT_FAILURE);
        }
}
 
 
}
 
#endif