break;
case 3://3
为顶端居右
$posX = $ground_w - $w;
$posY = 0;
break;
case 4://4
为中部居左
$posX = 0;
$posY = ($ground_h - $h) / 2;
break;
case 5://5
为中部居中
$posX = ($ground_w - $w) / 2;
$posY = ($ground_h - $h) / 2;
break;
case 6://6
为中部居右
$posX = $ground_w - $w;
$posY = ($ground_h - $h) / 2;
break;
case 7://7
为底端居左
$posX = 0;
$posY = $ground_h - $h;
break;
case 8://8
为底端居中
$posX = ($ground_w - $w) / 2;
$posY = $ground_h - $h;
break;
case 9://9
为底端居右
$posX = $ground_w - $w;
$posY = $ground_h - $h;
break;
default://
随机
$posX = rand(0,($ground_w - $w));
$posY = rand(0,($ground_h - $h));
break;
}
//
设定图像的混色模式
imagealphablending($ground_im, true);
if($isWaterImage)//
图片水印
{
imagecopy($ground_im, $water_im, $posX, $posY, 0, 0, $water_w,$water_h);//
拷贝水印到目标文件
}
else//
文字水印