int step=10
for(n=0;n<height;n=n+step){ 
    
    //****big Archs
    //line(0,n,n+step,height);
    //line(width,n,width-n+step,height);
    //line(width,n,n+step,0);
    //line(0,height-n,n+step,0);
    
    //*****small folded archs
    //line(width/2,n,n+step,0);
    //line(width/2,n,n+step,height);
    //line(n,height/2,0,n+step);
   // line(n,height/2,width,n+step);
   
   //*small centre fold
   //line(width,width/2-n,n+step,height);

    // line(0,height-n,n,n);//oopsleft down
    // line(0,n,n,height-n);//oopsleft up
    // line(width,height-n,n,n);//oopsrightup
     //line(width,n,n,height-n);//oopsright down
    // line(n,0,width-n,n);//oopsup left
    // line(n,height,width-n,n);//oopsdown right
    // line(width-n,0,n,n);//oopsup right
    // line(width-n,height,n,n);//oopsdown left


    
    //set of large triangles downward
    //line(width,height-n+step,width/2,y);
    //line(0,height-n+step,width/2,y);
    
    //line(0,height-n+step,width/2,y);

//****set of narrow triangles
    //line(width-n+step,height-n+step,width/2,y);
   // line(n+step,height-n+step,width/2,y);
   // line(n+step,height-n+step,width/2,height);
   // line(width-n+step,height-n+step,width/2,height);
   // line(width-n+step,height-n+step,x,height/2);
   // line(n+step,height-n+step,0,height/2);
   // line(n+step,height-n+step,width,height/2);
   // line(width-n+step,height-n+step,width,height/2);
 
   //***Set of large folded Archs
    line(width,n+step,width/2-n+step,height);
    line(width,height-n+step,width/2-n+step,0);
    line(0,n+step,width/2+n-step,height);
    line(0,height-n+step,width/2+n-step,0);

   
//*****set of small arches*********
       // line(0,height-n+step,width/2-n+step,height);
        //line(0,n+step,width/2-n+step,0);
        //line(width,n+step,width/2+n-step,0);
        //line(width,height-n+step,width/2+n-step,height);
//**************************************
        
       // line(width,n+step,width/2-n+step,height);
       //find other 3
        
        //set of diagonal lines - half
        //line(0,height/2-n+step,width/2+n+step,height);
        //line(width,height/2-n+step,width/2-n+step,height);


//assorted triangles up n down
    //line(width,height-n+step,width/2,height);
    //line(0,height-n+step,width/2,y);
    //line(0,height-n+step,width/2,height-y);
    //line(width,n+step,width/2,0);
    //line(width,n+step,width/2,height);
    //line(0,0,width/2,height-n+step);
    //line(width,height,width/2,height-n+step);
    //line(0,height,width/2,height-n+step);
    //line(width,0,width/2,height-n+step);

     //line(width,height,width/2,height-n+step);

    //line(0,0,width/2-n+step,height);
    
    
   // big triangles
    //line(0,height/2,width,height-n+step);
    //line(width,height/2,0,height-n+step);
    //line(width-n+step,height,width/2,y);
    //line(width-n+step,0,width/2,height);
    
    
    

    //*******set of diagonal triangles
    //line(width,0,width/2-n+step,height);
    //line(0,0,width/2+n-step,height);
    //line(0,height,width/2+n-step,0);
    //line(width,height,width/2-n+step,0);
    //*******************************


    

//*******half triangles up n down
   //line(width/2,height-n+step,0,y);
    //line(0,height-n+step,width/2,y);
    //line(width/2,height-n+step,width,y);
    //line(width,height-n+step,width/2,y);
    //line(width/2,n+step,width,height-y);
    //line(0,n+step,width/2,height-y);
    //line(width,n+step,width/2,height-y);
    //line(width/2,height-n+step,0,height-y);
   // line(0,height/2-n+step,width,0);
    //line(n+step,0,width,height/2-y);
    

//******* big triangle set
    //line(width,height/2,0,height-n+step);
    //line(0,height/2,width,height-n+step);
    //line(width/2,0,width-n+step,height);
    //line(width/2,height,width-n+step,0);
//*******************

  }