这篇文章主要介绍了关于EmpireCMS 水印平铺，有着一定的参考价值，现在分享给大家，有需要的朋友可以参考一下
修改 /e/class/gd.php下的imagewatermark方法
如下
if($isWaterImage)//图片水印
{
if($water_info[2]==3)
{
imagecopy($ground_im, $water_im, $posX, $posY, 0, 0, $water_w,$water_h);//拷贝水印到目标文件
}
else
{
imagecopymerge($ground_im, $water_im, $posX, $posY, 0, 0, $water_w,$water_h,$w_pct);//拷贝水印到目标文件
}
}改为：
if($isWaterImage)//图片水印
{
//定义平铺数据
$x_length = $ground_w - 10; //x轴总长度
$y_length = $ground_h - 10; //y轴总长度
if($water_info[2]==3)
{
//imagecopy($ground_im, $water_im, $posX, $posY, 0, 0, $water_w,$water_h);//拷贝水印到目标文件
//循环平铺水印
for ($x = 0; $x < $x_length; $x) {
for ($y = 0; $y < $y_length; $y) {
imagecopy($ground_im, $water_im, $x, $y, 0, 0, $water_w, $water_h);
$y += $water_h;
}
$x += $water_w;
}
}
else
{
//imagecopymerge($ground_im, $water_im, $posX, $posY, 0, 0, $water_w,$water_h,$w_pct);//拷贝水印到目标文件
//循环平铺水印
for ($x = 0; $x < $x_length; $x) {
for ($y = 0; $y < $y_length; $y) {
imagecopymerge($ground_im, $water_im, $x, $y, 0, 0, $water_w, $water_h, $w_pct);
$y += $water_h;
}
$x += $water_w;
}
}
} 
