Google Chart API でドット絵
http://chart.apis.google.com/chart? cht=lxy& chs=80x104& chco=eeeeee& chf=bg,s,eeeeee& chm= s,D8B558,0,-1,8|s,9D802E,1,-1,8|s,F7E0A2,2,-1,8|s,4087C4,3,-1,8| s,215E97,4,-1,8|s,70B6EE,5,-1,8|s,9BCCF2,6,-1,8& chd=t: 37,48,59,26,70,15,15,15,26,70,37,48,59|96,96,96,88,88,80,72,64,64,64,56,56,56| 81,81,81,26,70,37,48,59|80,72,64,56,56,48,48,48| 37,48,59,26,37,48,59,70,26,37,48,59,70,37,48,59|88,88,88,80,80,80,80,80,72,72,72,72,72,64,64,64| 15,81,4,92,4,4,4|48,48,40,40,32,24,16| 92,26,70,92,26,70,92,4,15,26,37,48,59,70,81,92|32,24,24,24,16,16,16,8,8,8,8,8,8,8,8,8| 26,70,37,48,59,26,70,59,59|48,48,40,40,40,32,32,24,16| 15,26,70,81,15,37,48,59,81,15,37,48,81,15,37,48,81|40,40,40,40,32,32,32,32,32,24,24,24,24,16,16,16,16
2007/12/10 追記
ほんとはルイージで作ってたのだけどプロットする点の数に制限があるらしく表示されなかったのでしかたなくこれにしたのだ。