Ajax+Jpgraph制作动态折线图

fun.js

var i=1;
function progress(){
    setInterval("beginProgress()",600);	
}
function beginProgress(){
	$("#img").attr("src","img.PHP?m="+i);
	i++;
	if(i>=12){
	    i=1;	
	}
}

index.PHP

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<Meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>Ajax+Jpgraph制作动态折线图</title>
</head>
<script language="javascript" src="js/jquery-1.3.2.js"></script>
<script language="javascript" src="js/fun.js"></script>
<body>
    <img id="img" src="img.PHP?m=0" />
	<br>
	<input type="button" value="开始" onclick="progress()"/>
</body>
</html>

img.PHP

<?PHP
require_once 'src/jpgraph.PHP';     //导入Jpgraph类库
require_once 'src/jpgraph_line.PHP';     //导入Jpgraph类库的柱状图功能
$dataTmp = array(56,78,34,65,89,24,67,88,45,68,70,50);     //设置统计数据
$data1 = array(0,0);     //设置统计数据
$m = $_GET['m'];
for($i=0; $i<$m; $i++){
    $data1[$i] = $dataTmp[$i];
}
$graph = new Graph(500,320);
$graph->SetScale("textlin");
$graph->SetShadow();
$graph->img->SetMargin(40,30,70);
$graph->title->Set("图书销售走势表");
$lineplot1 = new LinePlot($data1);
$graph->Add($lineplot1);
$graph->xaxis->title->Set("月份");
$graph->yaxis->title->Set("book A销售金额（万元）");
$graph->title->SetFont(FF_SIMSUN,FS_BOLD);
$graph->yaxis->title->SetFont(FF_SIMSUN,FS_BOLD);
$graph->xaxis->title->SetFont(FF_SIMSUN,FS_BOLD);
$lineplot1->SetColor('red');
$lineplot1->SetLegend('book A');
$graph->legend->SetLayout(LEGEND_HOR);
$graph->legend->Pos(0.4,0.95,'center','bottom');
$graph->Stroke();

二运行结果

原文链接：https://www.f2er.com/ajax/161036.html

Ajax+Jpgraph制作动态折线图

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