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php做饼图的函数(转)

技术开发2023-12-22 阅读()
php做饼图的函数
作者:qdlover 发表日期:2000年9月15日 阅读次数:14
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再介绍一下我自己,呵呵
我是个新手,当时学php纯粹是为了应付领导哦,让我们做统计图,我本来是学asp的,突然改行很不适应,不过php功能的确很强大呀,呵呵,我都离不了他了,这不,饼图,柱型图都搞定了,可是还有很多问题我不会,还希望大家多指教呀,说了好多废话了,我还以为是在写信那
我的联系方式是:
 email:qingdaohb@yeah.net
 http://qdlover.yeah.net
老板催了,没办法,饼图函数出炉了,大家快抢呀

########
bimage.php3
########
<?
/*
函数说明
$chartdata:数据,是数组元素
$chartfont:字号
$chartdiameter:决定饼的大小(要看你饿不饿了,呵呵)
$chartlabel:标题,也是数组元素
$colorslice:颜色数组,例如$tmp=array255,255,255);$colorslic=array($tmp);
$colorborder:边框颜色,数组
$colortext :文本颜色,数组
$colorbody:背景颜色,数组
$file:输出图片文件名*/
function bimage($chartdata,
$chartfont,
$chartdiameter ,
$chartlabel ,
$colorslice,
$colorbody ,
$colorborder,
$colortext ,
$file
)
{
$chartdiameter=150;

 $chartfontheight=imagefontheight($chartfont);
 $d1=10;$d2=20;$d3=30;$d4=40;$d5=50;
 $chartdata=array($d1,$d2,$d3,$d4,$d5);
 $chartlabel=array("D1","D2","D3","D4","D5");
 $chartwidth=$chartdiameter+20;
 $chartheight=$chartdiameter+20+(($chartfontheight+2)*count($chartdata));
 header("content-type:image/gif");
 $image=imagecreate($chartwidth,$chartheight);
$colorbody =imagecolorallocate ($image,$colorbody[0],$colorbody[1],$colorbody[2]);
$colortext =imagecolorallocate ($image,$colortext[0],$colortext[1],$colortext[2]);
$colorborder =imagecolorallocate ($image,$colorborder[0],$colorborder[1],$colorborder[2]);
for ($i=0;$i<count($colorslice);$i++)
{
$t=imagecolorallocate($image,$colorslice[$i][0],$colorslice[$i][1],$colorslice[$i][2]);
$colorslice[$i]=$t;
}




 for($i=0;$i<count($chartdata);$i++)
 {
 $charttotal+=$chartdata[$i];
 }
 $chartcenterx=$chartdiameter/2+10;
 $chartcentery=$chartdiameter/2+10;
$degrees=0;
for($i=0;$i<count($chartdata);$i++)
{
$startdegrees=round($degrees);
$degrees+=(($chartdata[$i]/$charttotal)*360);
$enddegrees=round($degrees);
$currentcolor=$colorslice[$i%(count($colorslice))];
imagearc($image ,
 $chartcenterx,
 $chartcentery,
 $chartdiameter,
 $chartdiameter,
 $startdegrees,
 $enddegrees,
 $currentcolor);
 list($arcx,$arcy)=circle_point($startdegrees,$chartdiameter);

 imageline($image,
 $chartcenterx,
 $chartcentery,
 floor($chartcenterx+$arcx),
 floor($chartcentery+$arcy),
 $currentcolor );
 list($arcx,$arcy)=circle_point($enddegrees,$chartdiameter);

 imageline($image,
 $chartcenterx,
 $chartcentery,
 ceil($chartcenterx+$arcx),
 ceil($chartcentery +$arcy),
 $currentcolor);

 $midpoint=round((($enddegrees-$startdegrees)/2)+$startdegrees);
 list($arcx,$arcy)= circle_point ( $midpoint, $chartdiameter/2);
 imagefilltoborder($image,
 floor($chartcenterx+$arcx),
 floor($chartcentery+$arcy),
 $currentcolor,
 $currentcolor);
 }
 imagearc($image,
$chartcenterx,
$chartcentery,
$chartdiameter,
$chartdiameter,
0,360,
$colorborder);
 imagefilltoborder ($image,
floor($chartcenterx +( $chartdiameter /2)+2),
$chartcentery ,
$colorborder,
$colorborder );
for ($i=0;$i<count($chartdata);$i++)
{
$currentcolor=$colorslice[$i%(count($colorslice))];
$liney=$chartdiameter+20+($i*($chartfontheight+2));
imagerectangle ($image,
10,
$liney,
20+$chartfontheight,
$liney+$chartfontheight,
$colorbody);
imagefilltoborder($image,
 12,
 $liney+2,
 $colorbody,
 $currentcolor);
imagestring($image,
$chartfont,
40+$chartfontheight,
$liney,
"$chartlabel[$i]:$chartdata[$i]",
$colortext);

}


 imagegif ($image,$file);

}

function radians($degrees)
 {
 return($degrees*(pi()/180.0));
 }
function circle_point($degrees,$diameter)
 {
 $x=cos(radians($degrees))*($diameter/2);
 $y=sin(radians($degrees))*($diameter/2);
 return (array($x,$y));
 }
?>
###########
这是一个调用的例子
###########

<?
include("bfunc.php3");
$chartdiameter=250;
 $chartfont=5;
 $d1=10;$d2=20;$d3=30;$d4=40;$d5=50;
 $chartdata=array($d1,$d2,$d3,$d4,$d5);
 $chartlabel=array("D1","D2","D3","D4","D5");

 $colorbody=array(0xff,0xff,0xff);
 $colorborder=array(0x00,0x00,0x00);
 $colortext=array(0xff,0xff,0xff);

 $color1=array(0xff,0x00,0x00);
 $color2=array(0x00,0xff,0x00);
 $color3=array(0x00,0x00,0xff);
 $color4=array(0xff,0xff,0x00);
 $color5=array(0xff,0x00,0xff);
 $colorslice=array($color1 ,$color2,$color3,$color4,$color5);
$file="tj.gif"
bimage($chartdata,
 $chartfont,
 $chartdiameter ,
 $chartlabel ,
 $colorslice,
 $colorbody ,
 $colorborder,
 $colortext ,
 $file )
?>


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