thinkphp 头像上传在线剪切编辑问题 （使用美图秀秀头像编辑器组件）
     用的tp3.1,想用美图秀秀开放的头像编辑组件来编辑头像，可是不清楚该怎么用，thinkPHP中那个头像上传的接口怎么写，写在哪里，
下面是美图秀秀开放的示例   （http://open.web.meitu.com/products/#M4）



nbsp;html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

/**
	 * 裁剪图片
	 * @return [type] [description]
	 */
	public function cutpic(){
		if(IS_POST){			
			$targ_w = $_POST['w'];
			$targ_h = $_POST['h'];	
			$pos_x = $_POST['x'];
			$pos_y = $_POST['y'];				
			$pos_sw = $_POST['sw'];	//选区宽			
			$jpeg_quality = 90;
			$id = init_base64_decode($this->_post('imgid'));
			if(!$id) exit;
			$src = M('weipai_images')->where(array('id'=>$id))->getField('PicUrl');
			$sf =ltrim($src,'http://'.$_SERVER['HTTP_HOST'].__ROOT__.'/');	
			$o_size = getimagesize($sf);
			$pct = ($o_size[0]>$o_size[1]?$o_size[1]:$o_size[0])/$pos_sw;
			if($pct!=1){
				$targ_w*=$pct;
				$targ_h*=$pct;
				$pos_x*=$pct;
				$pos_y*=$pct;
			}
			

			$img_r = imagecreatefromjpeg($src);
			$dst_r = ImageCreateTrueColor( $targ_w, $targ_h );
			imagecopyresampled($dst_r,$img_r,0,0,$pos_x,$pos_y,
			$targ_w,$targ_h,$targ_w,$targ_h);
			header('Content-type: image/jpeg');
			imagejpeg($dst_r,$sf,$jpeg_quality);
			// 释放内存
			imagedestroy($dst_r);				
			redirect(U('Index/cutpicok',array('id'=>$id)));	
			
		}else{
			$id = $this->_get('id');
			if(!$id) exit;			
			$data = M('weipai_images')->where(array('id'=>$id))->find();					
			if(preg_match("/Public\/Uploads\/medias/",$data['PicUrl'])==false){
				$sf = saveMedia($data['PicUrl']);
				$sf = 'http://'.$_SERVER['HTTP_HOST'].__ROOT__.'/'.ltrim($sf,'./');	
				M('weipai_images')->where(array('id'=>$id))->save(array('PicUrl'=>$sf));
				$data['PicUrl'] = $sf;				
			}
			$this->assign('data',$data);
			$this->display();
			
		}
	}