php 扇形比例百分比显示程序代码

我们在很多网站会看到一些图形的百分比显示图，像三个地区所占地多少或者是成绩等一下我来给大家介绍一款用php生成的扇形比例百分比显示程序代码

不过使用它首先得有phpGD库支持。

 

 代码如下

代码如下

复制代码

//填充图表的参数 $ChartDiameter = 60; //图表直径 $ChartData = array(30,70);//用于生成图表的数据，可通过数据库来取得来确定也可以多个不过和颜色数组对应 //把角度转换为弧度 function radians($degrees){return($degrees*(pi()/180.0));} //取得在圆心为（0，0）圆上 x,y点的值 function circle_point($degrees,$diameter){$x=cos(radians($degrees))*($diameter/2);$y=sin(radians($degrees))*($diameter/2);return (array($x,$y));} //确定图形的大小 $ChartWidth = $ChartDiameter 20; $ChartHeight = $ChartDiameter 20; //确定统计的总数 $ChartTotal = “”; for($index = 0;$index < count($ChartData);$index ){ $ChartTotal = $ChartData[$index]; } $ChartCenterX = $ChartDiameter/2 10; $ChartCenterY = $ChartDiameter/2 10; //生成空白图形 $image = imagecreate($ChartWidth, $ChartHeight); //分配颜色 $colorBody = imagecolorallocate($image, 0xFF, 0xFF, 0xFF); $colorBorder = imagecolorallocate($image, 0×00, 0×00, 0×00); $colorText = imagecolorallocate($image, 0×00, 0×00, 0×00); $colorSlice[] = imagecolorallocate($image, 0xFF, 0×00, 0×00);//这里是和你上面写的数组对应的颜色 $colorSlice[] = imagecolorallocate($image, 0×00, 0xFF, 0×00); //填充背境 imagefill($image, 0, 0, $colorBody); //画每一个扇形 $Degrees = 0; for($index = 0; $index < count($ChartData); $index ){ $StartDegrees = round($Degrees); $Degrees = (($ChartData[$index]/$ChartTotal)*360); $EndDegrees = round($Degrees); $CurrentColor = $colorSlice[$index%(count($colorSlice))]; //画图F imagearc($image,$ChartCenterX,$ChartCenterY,$ChartDiameter,$ChartDiameter,$StartDegrees,$EndDegrees, $CurrentColor); //画直线 list($ArcX, $ArcY) = circle_point($StartDegrees, $ChartDiameter); imageline($image,$ChartCenterX,$ChartCenterY,floor($ChartCenterX $ArcX), floor($ChartCenterY $ArcY),$CurrentColor); //画直线 list($ArcX, $ArcY) = circle_point($EndDegrees, $ChartDiameter); imageline($image,$ChartCenterX,$ChartCenterY,ceil($ChartCenterX $ArcX), ceil($ChartCenterY $ArcY),$CurrentColor); //填充扇形 $MidPoint = round((($EndDegrees – $StartDegrees)/2) $StartDegrees); list($ArcX, $ArcY) = circle_point($MidPoint, $ChartDiameter/2); imagefilltoborder($image,floor($ChartCenterX $ArcX),floor($ChartCenterY $ArcY), $CurrentColor,$CurrentColor); } //到此脚本 已经生了一幅图像的，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 header(“Content-type: image/png”); imagegif($image); ?>

复制代码

//填充图表的参数
$ChartDiameter = 60; //图表直径
$ChartData = array(30,70);//用于生成图表的数据，可通过数据库来取得来确定也可以多个不过和颜色数组对应
//把角度转换为弧度
function radians($degrees){return($degrees*(pi()/180.0));}
//取得在圆心为（0，0）圆上 x,y点的值
function circle_point($degrees,$diameter){$x=cos(radians($degrees))*($diameter/2);$y=sin(radians($degrees))*($diameter/2);return (array($x,$y));}
//确定图形的大小
$ChartWidth = $ChartDiameter 20;
$ChartHeight = $ChartDiameter 20;
//确定统计的总数
$ChartTotal = “”;
for($index = 0;$index < count($ChartData);$index ){
$ChartTotal = $ChartData[$index];
}
$ChartCenterX = $ChartDiameter/2 10;
$ChartCenterY = $ChartDiameter/2 10;
//生成空白图形
$image = imagecreate($ChartWidth, $ChartHeight);
//分配颜色
$colorBody = imagecolorallocate($image, 0xFF, 0xFF, 0xFF);
$colorBorder = imagecolorallocate($image, 0×00, 0×00, 0×00);
$colorText = imagecolorallocate($image, 0×00, 0×00, 0×00);
$colorSlice[] = imagecolorallocate($image, 0xFF, 0×00, 0×00);//这里是和你上面写的数组对应的颜色
$colorSlice[] = imagecolorallocate($image, 0×00, 0xFF, 0×00);
//填充背境
imagefill($image, 0, 0, $colorBody);
//画每一个扇形
$Degrees = 0;
for($index = 0; $index < count($ChartData); $index ){
$StartDegrees = round($Degrees);
$Degrees = (($ChartData[$index]/$ChartTotal)*360);
$EndDegrees = round($Degrees);
$CurrentColor = $colorSlice[$index%(count($colorSlice))];
//画图F
imagearc($image,$ChartCenterX,$ChartCenterY,$ChartDiameter,$ChartDiameter,$StartDegrees,$EndDegrees, $CurrentColor);
//画直线
list($ArcX, $ArcY) = circle_point($StartDegrees, $ChartDiameter);
imageline($image,$ChartCenterX,$ChartCenterY,floor($ChartCenterX $ArcX),
floor($ChartCenterY $ArcY),$CurrentColor);
//画直线
list($ArcX, $ArcY) = circle_point($EndDegrees, $ChartDiameter);
imageline($image,$ChartCenterX,$ChartCenterY,ceil($ChartCenterX $ArcX),
ceil($ChartCenterY $ArcY),$CurrentColor);
//填充扇形
$MidPoint = round((($EndDegrees – $StartDegrees)/2) $StartDegrees);
list($ArcX, $ArcY) = circle_point($MidPoint, $ChartDiameter/2);
imagefilltoborder($image,floor($ChartCenterX $ArcX),floor($ChartCenterY $ArcY),
$CurrentColor,$CurrentColor);
}
//到此脚本 已经生了一幅图像的，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
header(“Content-type: image/png”);
imagegif($image);
?>