Ajax+Jpgraph實現的動態折線圖功能示例

2024-05-05 00:06:29

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本文實例講述了Ajax+Jpgraph實現的動態折線圖功能。分享給大家供大家參考，具體如下：

一代碼

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制作動態折線圖</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="開始" onclick="progress()"/></body></html>

img.php：

<?phprequire_once 'src/jpgraph.php';   //導入Jpgraph類庫require_once 'src/jpgraph_line.php';   //導入Jpgraph類庫的柱狀圖功能$dataTmp = array(56, 78, 34, 65, 89, 24 ,67 ,88, 45, 68, 70, 50);   //設置統計數據$data1 = array(0, 0, 0, 0, 0, 0 ,0 ,0, 0, 0, 0, 0);   //設置統計數據$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, 30, 70);$graph->title->Set("圖書銷售走勢表");$lineplot1 = new LinePlot($data1);$graph->Add($lineplot1);$graph->xaxis->title->Set("月份");$graph->yaxis->title->Set("book A銷售金額（萬元）");$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();

二運行結果

Ajax,Jpgraph,動態折線圖