//确定图形的大小
$ChartWidth = $ChartDiameter + 20;
$ChartHeight = $ChartDiameter + 20 +
(($ChartFontHeight + 2) * count($ChartData));

//确定统计的总数
for($index = 0; $index $#@60; count($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, 0x00, 0x00, 0x00);
$colorText = imagecolorallocate($image, 0x00, 0x00, 0x00);

$colorSlice = imagecolorallocate($image, 0xFF, 0x00, 0x00);
$colorSlice[] = imagecolorallocate($image, 0x00, 0xFF, 0x00);

//填充背境
imagefill($image, 0, 0, $colorBody);

/*
** 画每一个扇形
*/
$Degrees = 0;
for($index = 0; $index $#@60; count($ChartData); $index++)
{
$StartDegrees = round($Degrees);
$Degrees += (($ChartData[$index]/$ChartTotal)*360);