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int rand_factor, randit, nreps;
mainº¯ÊýÖÐÓÐÒ»º¯Êýµ÷ÓÃ
if (ifill==1)
{
    if (idiam==1 || idiam==2)
       {
          if (ibc==2||ibc==3)
             RandomFill(0, hht, hdia, hod, hha);
         if (ibc==4)
             RandomFill_Pharma(0, hht, hdia, hod, hha);
        } // close if idiam == 1 or 2
} // close if ifill=1
ÆäÖк¯ÊýRandomFillÊÇÕâÑù¶¨ÒåµÄ
void RandomFill(double y_origin, double _hht, double _hdia, double _hod, double _hha)
{
        double _hhar, _tanhhar, _sinhhar;
         _hhar = _hha * Pi / 180;
         _sinhhar = sin(_hhar);
         _tanhhar = tan(_hhar);
        cout.setf(ios::showpoint);
        cout <<"\n starting Random Fill( y_orign, _hht, _hdia, _hod, _hha         = "<"< //place initial particle
    do
    {
         HRand(0.01);
         x[1] = HRand(rand_factor)*0.55*_hdia;
         HRand(0.01);
         y[1] = HRand(rand_factor)*2.0*_hht + y_origin;
         if (idim == 3 && ibc==2)
          { z[1] = HRand(rand_factor)*1.1*z_width; // - 1.0*z_width;
          }
        if (idim == 3 && ibc==3)
          { z[1] = HRand(rand_factor)*0.55*_hdia;
             xz_sq = sqrt( sq(x[1]) + sq(z[1]) );
          }
   // cout << "x,y,z = "<    }
    while ( fabs(x[1]) > 0.5*(_hdia-diam[1]) || y[1]>1.50*_hht+y_origin || y[1]<0.5*diam[1]+y_origin
|| (ibc==2 && y[1] < 1/_tanhhar * 1.0*( fabs(x[1]) -0.5*_hod) + 0.5*diam[1]/_sinhhar + y_origin) || (ibc==3 &&
y[1] < 1/_tanhhar * 1.0*(xz_sq - 0.5*_hod) + 0.5*diam[1]/_sinhhar + y_origin) || (ibc==2 &&
fabs(z[1])>0.5*z_width ) || (ibc==3 && xz_sq > 0.5*_hdia-0.5*diam[1]) );
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}
HRandÓÖÊÇÕâÑù¶¨ÒåµÄ
double HRand(double n) // returns random numbers on [-1,1]
{
    return double( 2.0 * (1.0 * rand() / RAND_MAX) - 1.0 );
}
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[ Last edited by panpan429 on 2010-4-16 at 17:35 ]
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