Hey guys

How can we showing 2-different image that using different rules on one file, to both appear in a single scene simultaneously? Suppose we have 2 rules: 1- tree, 2- snow flake

 How technique can we use for showing for instance snow flake and tree together in one scene?

Rule of snow flake:

String state = "F--F--F";

String F_rule = "F+F--F+F";

There is a little difference in main code in both snow flake  and tree. I just change the rule, angle, L and sometimes add d/=x under for(int K=0; K < L; K++) for decrease the size in every level.

1. int SZ = 512;
   int sz=SZ/2;
   float d = sz/128; //512/128=4
   float ang = (25.7/180.0)*PI; //25.7
   float s=1;
   float x=SZ/2;
   float y=SZ;
   float a = -HALF_PI;
   String state = "F";
   String F_rule = "F[+F]F[-F]F";
   String H_rule = "";
   String f_rule = "";
   int L = 5;
2. void setup()
   {
     size(SZ,SZ);
     background(255);
     stroke(0);
    
     for(int K=0; K < L; K++)
       state = substitute(state, F_rule, H_rule, f_rule);
     noLoop();
     println("state "+state);
   }
3. void draw()
   {
     translate(x,y);
     rotate(a);
    
     for(int i=0; i<state.length(); i++)
       turtle(state.charAt(i));
   }
4. void turtle(char c)
   {
     switch(c)
     {
       case 'F':
       case 'H':
         line(0,0, d,0);
         translate(d,0);
         break;
       case 'f':
         translate(d,0);
         break;
       case 's':
         scale(s,s);
         break;
       case '-':
         rotate(ang);
         break;
       case '+':
         rotate(-ang);
         break;
       case '[':
         pushMatrix();
         break;
       case ']':
         popMatrix();
         break;
       default:
         println("Bad character: "+c);
         exit();
     }
   }
5. String substitute(String s, String F, String H, String f)
   {
     String s2 = new String();
     for(int j=0; j<s.length(); j++)
       if(s.charAt(j)=='F')
         s2 = s2+F;
       else if(s.charAt(j)== 'H')
         s2 = s2+H;
       else if(s.charAt(j)=='f')
         s2 = s2+f;
       else
         s2=s2+s.charAt(j);
     return s2;
   }