从mysql中在php中绘制多个折线图 [英] draw multiple line chart in php from mysql
本文介绍了从mysql中在php中绘制多个折线图的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
这是html文件
this is html file
<!DOCTYPE html PUBLIC "-//W3C//DTD X<code></code>HTML 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=iso-8859-1" />
<title>Untitled Document</title>
<script src="http://code.jquery.com/jquery-1.9.1.js"></script>
<script src="http://code.jquery.com/ui/1.10.3/jquery-ui.js"></script>
<script src="js/modernizr-2.5.3.min.js"></script>
<script language="javascript" src="jquery/jquery-1.9.0.min.js"></script>
<script language="javascript">
$(document).ready(function(){
$("#sub").click(function(){
var str="";
$("input[type=checkbox]:Checked").each(function(){
a = $(this).val();
str=str+a+"#";
})
str1=str.substr(0,str.length-1);
alert(str);
$.ajax({
type: "POST",
url: "chart-multiple.php",
data:{str1:str1},
success: function(data){
alert(data);
$("#chart-table").empty();
$("#chart-table").append(data);
}
});
});
});
</script>
</head>
<body>
<form id="frm1">
<input type="checkbox" id="ins1" value="SHC-I-01" />SHC-I-01
<input type="checkbox" id="ins2" value="SHC-I-02" />SHC-I-02
<a href="#" name="sub" id="sub">Generate</a>
<!--<input type="submit" name="submit" value="Generate" id="submit"/>-->
<table id="chart-table">
</table>
</form>
</body>
</html>
chart-multiple.php文件。
chart-multiple.php file this is.
<?php
//include "libchart/classes/libchart.php";
include("dbconnection.php");
require_once ('src/jpgraph.php');
require_once ('src/jpgraph_line.php');
$ins_instalid=$_REQUEST['str1'];
$strarray=explode('#',$ins_instalid);
$sel_date = mysql_query("select distinct ReadingDate from trn_1");
while($row_date=mysql_fetch_array($sel_date)){
$date[] = $row_date['ReadingDate'];
}
$i=0;
$j=0;
foreach($strarray as $col){
$sql = mysql_query("select * from trn_1 where InstallInstrumentId='$col'");
while($row=mysql_fetch_array($sql)){
$x = $row["ReadingDate"];
if(in_array($x,$date,true))
{
$data[$i][$j] = $row["CumulativeChange"];
}
$j++;
}
$i++;
}
$graph = new Graph(400,600);
$graph->SetScale("textlin");
$theme_class=new UniversalTheme;
$graph->SetTheme($theme_class);
$graph->img->SetAntiAliasing(false);
$graph->title->Set('Filled Y-grid');
$graph->SetBox(false);
$graph->img->SetAntiAliasing();
$graph->yaxis->HideZeroLabel();
$graph->yaxis->HideLine(false);
$graph->yaxis->HideTicks(false,false);
$graph->xgrid->Show();
$graph->xgrid->SetLineStyle("solid");
$graph->xaxis->SetTickLabels($date);
$graph->xgrid->SetColor('#E3E3E3');
$p1 = new LinePlot($data);
$graph->Add($p1);
$p1->mark->SetType(MARK_FILLEDCIRCLE,'',1.0);
$p1->mark->SetColor('#6495ED');
$p1->SetLegend('Line1');
$graph->legend->SetFrameWeight(1);
$graph->Stroke();
?>
i想在一个折线图中绘制多个折线图。我使用jgpgraph。我试试这段代码。但是图表没有得到正确的解决。请帮我。我有输出但是输出有一些符号
i want to draw multiple line graph in one line chart.. Iam using jgpgraph. I try this code. But graph did not come properly. Please help me. i got output but output is coming some symbols
推荐答案
（文件）.ready（function（）{
(document).ready(function(){
（＃ sub）。click（function（）{
var str =;
("#sub").click(function(){ var str="";
（input [type = checkbox]：Checked）。each（function（）{
a =
("input[type=checkbox]:Checked").each(function(){ a =
这篇关于从mysql中在php中绘制多个折线图的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
查看全文
