浮水印座標設定

x = +5;
$y = +5;
break;
case 2:
$x = ($imagewidth - $logowidth) / 2;
$y = +5;
break;
case 3:
$x = $imagewidth - $logowidth - 5;
$y = +5;
break;
case 4:
$x = +5;
$y = ($imageheight - $logoheight) / 2;
break;
case 5:
$x = ($imagewidth - $logowidth) / 2;
$y = ($imageheight - $logoheight) / 2;
break;
case 6:
$x = $imagewidth - $logowidth - 5;
$y = ($imageheight - $logoheight) / 2;
break;
case 7:
$x = +5;
$y = $imageheight - $logoheight - 5;
break;
case 8:
$x = ($imagewidth - $logowidth) / 2;
$y = $imageheight - $logoheight - 5;
break;
case 9:
$x = $imagewidth - $logowidth - 5;
$y = $imageheight - $logoheight -5;
break;
分別對應：
頂部居左 頂部置中 頂部居右
左邊置中 圖片中心 右邊置中
底部居左 底部置中 底部居右

===========是從DEDE裡面提取出來的