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php图片处理类:缩略,裁剪,圆角,倾斜(1/3)

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2016-06-13 09:48:25929browse

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php教程图片处理类:缩略,裁剪,圆角,倾斜

class resizeimage
{
   //图片类型
   var $type;
   //实际宽度
   var $width;
   //实际高度
   var $height;
   //改变后的宽度
   var $resize_width;
   //改变后的高度
   var $resize_height;
   //是否裁图
   var $cut;
   //源图象
   var $srcimg;
   //目标图象地址
   var $dstimg;
   //圆角源
   var $corner;
   var $im;

function resizeimage($img, $corner, $wid, $hei,$c, $corner_radius, $angle)
   {
       $this->srcimg = $img;
           $this->corner = $corner;
       $this->resize_width = $wid;
       $this->resize_height = $hei;
       $this->cut = $c;
           $this->corner_radius = $corner_radius;
           $this->angle = $angle;
       //图片的类型
       $this->type = substr(strrchr($this->srcimg,"."),1);
       //初始化图象
       $this->initi_img();
       //目标图象地址
       $this -> dst_img();
       //--
       $this->width = imagesx($this->im);
       $this->height = imagesy($this->im);
       //生成图象
       $this->newimg();
       imagedestroy ($this->im);
   }
   function newimg()
   {
       //改变后的图象的比例
       $resize_ratio = ($this->resize_width)/($this->resize_height);
       //实际图象的比例
       $ratio = ($this->width)/($this->height);
       if(($this->cut)=="1")
       //裁图
       {
           if($ratio>=$resize_ratio)
           //高度优先
           {
               $newimg = imagecreatetruecolor($this->resize_width,$this->resize_height);
               imagecopyresampled($newimg, $this->im, 0, 0, 0, 0, $this->resize_width,$this->resize_height, (($this->height)*$resize_ratio), $this->height);
                           $tmp = $this->rounded_corner($newimg,$this->resize_width);
               imagepng ($tmp,$this->dstimg);
           }
           if($ratio            //宽度优先
           {
               $newimg = imagecreatetruecolor($this->resize_width,$this->resize_height);
               imagecopyresampled($newimg, $this->im, 0, 0, 0, 0, $this->resize_width, $this->resize_height, $this->width, (($this->width)/$resize_ratio));
                           $tmp = $this->rounded_corner($newimg);
               imagepng ($tmp,$this->dstimg);
           }
       }
       else
      

 

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