Figure Asymptote fractales -- 009

Posted on 2011-01-01 Edited on 2025-06-30 In EN , Tech , Programming , Asymptote , Surveys , Fractals

An Asymptote code and the generated picture fractales--009.

🔗This picture comes from the Asymptote gallery of topic fractales

$Figure fractales 009 Generated with Asymptote$

size(10cm,0);

real a=-1.5, b=2a/3;

picture H(pen p=currentpen) {
  picture H;
  draw(H,(-a,0)--(a,0)^^(-a,-b)--(-a,b)^^(a,-b)--(a,b),p);
  return H;
}

transform sc=scale(0.5);
transform[] t={identity(),
               shift(-a,b)*sc, shift(-a,-b)*sc,
               shift(a,b)*sc,  shift(a,-b)*sc};

picture Hfractal(int n, pen p=currentpen)
{
  picture pic;
  if(n == 0) return H(p);
  picture Ht=Hfractal(n-1,p);
  for (int i=0; i < 5; ++i) add(pic,t[i]*Ht);
  return pic;
}

add(Hfractal(4, bp+0.5*red));