C语言：旋转的立体椭球

main()
{
 float d[3],r[3][3],ta,tb;
 char k;
 int gdriver=VGA,gmode=VGAMED, i,p=1;
    initgraph(&gdriver,&gmode,"c:\\tc");
 setbkcolor(BLACK);setcolor(GREEN);
    d[1]=30*T; d[2]=10*T;
do{
 for(i=0;i<=361;i+=1)
 {
  k=kbhit();
  if(k!=0)break;
  setactivepage(p);
  d[0]=i*T;
  cleardevice();
        trans(d,r);
   for(tb=0.0;tb<PI;tb+=DT)
   {
    n=1;
          for(ta=0.0;ta<2.1*PI;ta+=DT) draw(r,ta,tb);}
          for(ta=0.0;ta<PI;ta+=DT)
    {   
    n=1;
    for(tb=0.0;tb<2.1*PI;tb+=DT) draw(r,ta,tb);
    }
         setvisualpage(p);delay(150);p=1-p; 
  }
 }
    
  while(k==0);
  getch();closegraph();
}