PHP对象编程实现3D饼图_PHP应用_黑客防线网安服务器维护基地--Powered by WWW.RONGSEN.COM.CN

PHP对象编程实现3D饼图

作者:黑客防线网安PHP维护基地 来源:黑客防线网安PHP维护基地 浏览次数:0

本篇关键词:实现编程对象 
黑客防线网安网讯:<?php     //公用函数     //把角度转换为弧度   function deg2Arc($degrees) {   return($degrees * (pi()/180.0));   }     //RGB   function getRGB($color){    ...
<?php
  
   //公用函数
  
   //把角度转换为弧度
   function deg2Arc($degrees) {
   return($degrees * (pi()/180.0));
   }
  
   //RGB
   function getRGB($color){
     $R=($color>>16) & 0xff;
     $G=($color>>8) & 0xff;
     $B=($color) & 0xff;
     return (array($R,$G,$B));
   }
  
   // 取得在椭圆心为(00)的椭圆上 x,y点的值
   function pie_point($deg,$va,$vb){
   $x= cos(deg2Arc($deg)) * $va;
   $y= sin(deg2Arc($deg)) * $vb;
   return (array($x, $y));
   }
  
  
   //3D饼图类
  
   class Pie3d{
  
   var $a; //椭圆长半轴
   var $b; //椭圆短半轴
   var $DataArray;  //每个扇形的数据
   var $ColorArray; //每个扇形的颜色 要求按照十六进制书写但前面不加0x
   //为边缘及阴影为黑色
  
   function Pie3d($pa=100,$pb=60,$sData="100,200,300,400,500", $sColor="ee00ff,dd0000,cccccc,ccff00,00ccff")
   {
       $this->a=$pa;
       $this->b=$pb;
       $this->DataArray=split(",",$sData);
       $this->ColorArray=split(",",$sColor);
   }
  
   function setA($v){
       $this->a=$v;
   }
  
   function getA(){
       return $this->a;
   }
  
   function setB($v){
       $this->b=$v;  
   }
  
   function getB(){
       return $this->b;
   }
  
   function setDataArray($v){
       $this->DataArray=split(",",$v);
   }
  
   function getDataArray($v){
       return $this->DataArray;
   }
  
   function setColorArray($v){
       $this->ColorArray=split(",",$v);
   }
  
   function getColorArray(){
       return  $this->ColorArray;
   }
  
     
   function  DrawPie(){
       $image=imagecreate($this->a*2+40,$this->b*2+40);
       $PieCenterX=$this->a+10;
       $PieCenterY=$this->b+10;
       $DoubleA=$this->a*2;
       $DoubleB=$this->b*2;
       list($R,$G,$B)=getRGB(0);
       $colorBorder=imagecolorallocate($image,$R,$G,$B);
       $DataNumber=count($this->DataArray);
        
       //$DataTotal
       for($i=0;$i<$DataNumber;$i++)      $DataTotal+=$this->DataArray[$i]; //算出数据和
        
       //填充背境
       imagefill($image, 0, 0, imagecolorallocate($image, 0xFF, 0xFF, 0xFF));
  
       /*
       ** 画每一个扇形
       */
       $Degrees = 0;
       for($i = 0; $i < $DataNumber; $i++){
           $StartDegrees = round($Degrees);
           $Degrees += (($this->DataArray[$i]/$DataTotal)*360);
           $EndDegrees = round($Degrees);
           $percent = number_format($this->DataArray[$i]/$DataTotal*100, 1);  
           list($R,$G,$B)=getRGB(hexdec($this->ColorArray[$i]));
           $CurrentColor=imagecolorallocate($image,$R,$G,$B);
           if ($R>60 and $R<256)            $R=$R-60;
           if ($G>60 and $G<256)            $G=$G-60;
           if ($B>60 and $B<256)            $B=$B-60;
           $CurrentDarkColor=imagecolorallocate($image,$R,$G,$B);
           //画扇形弧
           imagearc($image,$PieCenterX,$PieCenterY,$DoubleA,$DoubleB,$StartDegrees,$EndDegrees,$CurrentColor);
           //画直线
           list($ArcX, $ArcY) = pie_point($StartDegrees , $this->a , $this->b);
           imageline($image,$PieCenterX,$PieCenterY,floor($PieCenterX + $ArcX),floor($PieCenterY + $ArcY),$CurrentColor);
           //画直线
           list($ArcX, $ArcY) = pie_point($EndDegrees,$this->a , $this->b);
           imageline($image,$PieCenterX,$PieCenterY,ceil($PieCenterX + $ArcX),ceil($PieCenterY + $ArcY),$CurrentColor);
           //填充扇形
           $MidPoint = round((($EndDegrees - $StartDegrees)/2) + $StartDegrees);
           list($ArcX, $ArcY) = Pie_point($MidPoint, $this->a*3/4 , $this->b*3/4);
            
           imagefilltoborder($image,floor($PieCenterX + $ArcX),floor($PieCenterY + $ArcY), $CurrentColor,$CurrentColor);
           imagestring($image,2,floor($PieCenterX + $ArcX-5),floor($PieCenterY + $ArcY-5),$percent."%",$colorBorder);
  
           //画阴影
           if ($StartDegrees>=0 and $StartDegrees<=180){
              if($EndDegrees<=180){     
                  for($k = 1; $k < 15; $k++)
                   imagearc($image,$PieCenterX, $PieCenterY+$k,$DoubleA, $DoubleB, $StartDegrees, $EndDegrees, $CurrentDarkColor);
              }else{
                  for($k = 1; $k < 15; $k++)
                   imagearc($image,$PieCenterX, $PieCenterY+$k,$DoubleA, $DoubleB, $StartDegrees, 180, $CurrentDarkColor);
              }
  
           }
      }
            
       /*到此脚本已经生了一幅图像了
       **现在需要的是把它发到浏览器上重要的一点是要将标头发给浏览器,让它知道是一个GIF文件不然的话你只能看到一堆奇怪的乱码
       */  
       //输出生成的图片     
       header("Content-type: image/gif");
       imagegif($image);
       imagedestroy($image);
   }//End drawPie()
   }//End class
  
  
   //实现
  
   $objp = new Pie3d();
   $objp->DrawPie();
   ?>  
  
   【本文版权归作者与奥索网共同拥有,如需转载,请注明作者及出处】    
  
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