jpgraph 实例文档

原创

hahazhu0634 2009-07-13 15:21:13 博主文章分类：Python/Php ©著作权

文章标签 实例职场休闲 jpgraph 文章分类 MySQL 数据库

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下载
在官方网站http://www.aditus.nu/jpgraph/ 下载jpgraph，其中1.X系列是用于PHP4的，2.X系列是用于PHP5的。

安装
将下载的得到的jpgraph压缩文件解压至相应的路径。

配置
首先需要注意的是：要想适用jpgraph，你的PHP必须开启了GD2扩展。
在jpgraph.php中有以下这样一段代码是设置字体文件路径的
if (!defined('TTF_DIR')) {

if (strstr( PHP_OS, 'WIN') ) {

$sroot = getenv('SystemRoot');

if( empty($sroot) ) {

$t = new ErrMsgText();

$msg = $t->Get(12,$file,$lineno);

die($msg);

}

else {

define('TTF_DIR', $sroot.'/fonts/');

}

} else {

define('TTF_DIR','/usr/share/fonts/truetype/');ç (我的作法是将windows下的fonts文件夹下的字体全部COPY到/usr/local/fonts/truetype)

}

要支持中文需要用到simhei.ttf和simsun.ttc这两个字体,在使用中文的时候需要使用SetFont(FF_SIMSUN,FS_BOLD)设置字体。

如果你的文件编码为utf-8,修改方法如下：
代码：
方法一，在程序中修改
$title="流量图";
$title = iconv("UTF-8", "gb2312", $title);
$graph->title->Set($title);
方法二，修改源文件jpgraph_ttf.inc.php
在第99-106行，改成下面这样子
   elseif( $aFF === FF_SIMSUN ) {
        // Do Chinese conversion
        /*
        if( $this->g2312 == null ) {
       include_once 'jpgraph_gb2312.php' ;
       $this->g2312 = new GB2312toUTF8();
        }
        return $this->g2312->gb2utf8($aTxt);
        */
       return $aTxt;
   }

jpgraph默认显示汉字时是把汉字编码认为gb2312,转化为utf-8以后再显示。
这样的话，如果你的文件编码是gb2312,SetFont方法的第一个参数为FF_SIMSUN即可。
如果你是utf-8编码你还需要先把汉字编码转化为gb2312，这样你的汉字才可以正常显示。

使用
可以参照jpgraph-2.3.4\src\Examples中的例子。下面是一些常用的：
$graph->title->Set(‘设置图表的标题’);
$graph->xaxis->title->Set("设置X轴的标题");
$graph->yaxis->title->Set("设置Y轴的标题");

//设置字体如果是中文，第一个参数一般设置为FF_SIMSUN
SetFont(FF_SIMSUN,FS_BOLD,14);
//如设置图表标题的字体
$graph->title->SetFont(FF_SIMSUN,FS_BOLD,14);

//设置颜色
SetColor('red');

Example:

例1. php Jpgraph绘制简单的X-Y坐标图

<?php

include ("../jpgraph.php");

include ("../jpgraph_line.php");

//将要用于图表创建的数据存放在数组中

$data = array(19,23,34,38,45,67,71,78,85,90,96,145);

$graph = new Graph(500,300); //创建新的Graph对象

$graph->SetScale("textlin"); //设置刻度样式

$graph->img->SetMargin(30,30,80,30); //设置图表边界

$graph->title->Set("CDN Traffic Total"); //设置图表标题

$graph->title->SetColor("blue");

$graph->title->SetMargin(20);

// Create the linear plot

$lineplot=new LinePlot($data); // 创建新的LinePlot对象

$lineplot->SetLegend("Line(Mbits)"); //设置图例文字

$lineplot->SetColor("red"); // 设置曲线的颜色

// Add the plot to the graph

$graph->Add($lineplot); //在统计图上绘制曲线

// Display the graph

$graph->Stroke(); //输出图像

例2. php Jpgraph绘制复杂的X-Y坐标图

<?php

include ("../jpgraph.php");

include ("../jpgraph_line.php");

$data1 = array(523,634,371,278,685,587,490,256,398,545,367,577); //第一条曲线的数组

$data2 = array(19,23,34,38,45,67,71,78,85,87,90,96); //第二条曲线的数组

$graph = new Graph(500,300,auto); //创建新的Graph对象

$graph->SetScale("textlin");

$graph->SetShadow(); //设置图像的阴影样式

$graph->img->SetMargin(60,30,30,70); //设置图像边距

$graph->title->Set("CDN流量图"); //设置图像标题

$graph->title->SetMargin(10);

$lineplot1=new LinePlot($data1); //创建设置两条曲线对象

$lineplot2=new LinePlot($data2);

$lineplot1->value->Show();

$lineplot1->value->SetColor("black");

$graph->Add($lineplot1); //将曲线放置到图像上

$graph->Add($lineplot2);

$graph->xaxis->title->Set("月份"); //设置坐标轴名称

$graph->yaxis->title->Set("流量(Gbits)");

$graph->xaxis->title->SetMargin(10);

$graph->yaxis->title->SetMargin(10);

$graph->title->SetFont(FF_SIMSUN,FS_BOLD); //设置字体

$graph->yaxis->title->SetFont(FF_SIMSUN,FS_BOLD);

$graph->xaxis->title->SetFont(FF_SIMSUN,FS_BOLD);

$graph->xaxis->SetTickLabels($gDateLocale->GetShortMonth());

$lineplot1->SetColor("red"); //设置颜色

$lineplot2->SetColor("blue");

$lineplot1->SetLegend("Max"); //设置图例名称

$lineplot2->SetLegend("Min");

$graph->legend->SetLayout(LEGEND_HOR); //设置图例样式和位置

$graph->legend->Pos(0.5,0.96,"center","bottom");

$graph->Stroke(); //输出图像

例3. php Jpgraph绘制柱形图

<?php

include ("../jpgraph.php");

include ("../jpgraph_bar.php");

$data = array(19,23,34,38,45,67,71,78,85,87,96,145); //定义数组

$ydata = array("一","二","三","四","五","六","七","八","九","十","十一","十二");

$graph = new Graph(500,300); //创建新的Graph对象

$graph->SetScale("textlin");

$graph->SetShadow(); //设置阴影

$graph->img->SetMargin(40,30,40,50); //设置边距

$barplot = new BarPlot($data); //创建BarPlot对象

$barplot->SetFillColor('blue'); //设置颜色

$barplot->value->Show(); //设置显示数字

$graph->Add($barplot); //将柱形图添加到图像中

$graph->title->Set("CDN流量图"); //设置标题和X-Y轴标题

$graph->title->SetColor("red");

$graph->title->SetMargin(10);

$graph->xaxis->title->Set("月份");

$graph->xaxis->title->SetMargin(5);

$graph->xaxis->SetTickLabels($ydata);

$graph->yaxis->title->Set("流量(Mbits)");

$graph->title->SetFont(FF_SIMSUN,FS_BOLD); //设置字体

$graph->yaxis->title->SetFont(FF_SIMSUN,FS_BOLD);

$graph->xaxis->title->SetFont(FF_SIMSUN,FS_BOLD);

$graph->xaxis->SetFont(FF_SIMSUN,FS_BOLD);

$graph->Stroke();

例4. php Jpgraph绘制饼图

<?php

include ("../jpgraph.php");

include ("../jpgraph_pie.php");

$data = array(19,23,34,38,45,67,71,78,85,87,90,96);

$lable_data = range(1,12);

$graph = new PieGraph(400,300);

$graph->SetShadow();

$graph->title->Set("CDN流量比例");

$graph->title->SetFont(FF_SIMSUN,FS_BOLD);

$pieplot = new PiePlot($data);

$pieplot->SetLegends($lable_data);

$pieplot->SetCenter(0.4);

$graph->Add($pieplot);

$graph->Stroke();

例5. php Jpgraph绘制3D饼图

<?php

include ("../jpgraph.php");

include ("../jpgraph_pie.php");

include ("../jpgraph_pie3d.php");

$data = array(19,23,34,38,45,67,71,78,85,87,90,96);

$graph = new PieGraph(550,400);

$graph->SetShadow();

$graph->title->Set("CDN流量比例");

$graph->title->SetFont(FF_SIMSUN,FS_BOLD);

$pieplot = new PiePlot3D($data); //创建PiePlot3D对象

$pieplot->SetCenter(0.4); //设

置饼图中心的位置

$pieplot->SetLegends($gDateLocale->GetShortMonth()); //设置图例

$graph->Add($pieplot);

$graph->Stroke();

例6.

index.html

<html>

<head>

<title>CDN流量查询系统统计</title>

<mce:style type="text/css"><!--

.style1 {

font-size: 16px;

font-weight: bold;

}

--></mce:style><style type="text/css" mce_bogus="1">.style1 {

font-size: 16px;

font-weight: bold;

}</style>

</head>

<body>

<p align="center" class="style1"> CDN流量查询系统统计</p>

<tr>

</select></td>

</tr>

<tr>

</select></td>

</tr>

<tr>

</select></td>

</tr>

<tr>

<td><strong>统计图类别</strong></td>

</select></td>

</tr>

</table>

</p>

</form>

</body>

</html>

result.php

<?php

include ("../jpgraph.php");

include ("../jpgraph_line.php");

include ("../jpgraph_bar.php");

include ("../jpgraph_pie.php");

include ("../jpgraph_pie3d.php");

$conn = mysql_connect("localhost", "root", "woxiangnileyali"); //连接数据库

$acct_yr = $_GET['acct_yr']; //获取年份

$start_mth = $_GET['start_mth']; //获取超始月份

$end_mth = $_GET['end_mth']; //获取结束月份

$choose = $_GET['graph']; //获取图形类型

mysql_select_db("test", $conn); //执行SQL, 获得销量值

$query_rs_prod = "SELECT acct_mth, amount FROM traffic WHERE acct_yr = '$acct_yr' and acct_mth between '$start_mth' and '$end_mth'";

$rs_prod = mysql_query($query_rs_prod, $conn) or die(mysql_error());

$row_rs_prod = mysql_fetch_assoc($rs_prod);

$totalRows_rs_prod = mysql_num_rows($rs_prod);

$data = array(0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0); //初始化数组

do //循环设置各月份数值

{

$i = (int)$row_rs_prod['acct_mth']-1;

$data[$i] = $row_rs_prod['amount'];

} while($row_rs_prod = mysql_fetch_assoc($rs_prod));

switch($choose)

{

case 1:

$graph = new Graph(400,300); //创建新的Graph对象

$graph->SetScale("textlin"); //设置刻度样式

$graph->img->SetMargin(30,30,80,30); //设置图表边界

$graph->title->SetFont(FF_SIMSUN,FS_BOLD); //设置字体

$graph->title->Set("CDN流量查询"); //设置图表标题

$lineplot=new LinePlot($data);

$lineplot->SetLegend("Line");

$lineplot->SetColor("red");

$graph->Add($lineplot);

break;

case 2:

$graph = new Graph(400,300);

$graph->SetScale("textlin");

$graph->SetShadow();

$graph->img->SetMargin(40,30,20,40);

$barplot = new BarPlot($data); //创建BarPlot对象

$barplot->SetFillColor('blue'); //设置颜色

$barplot->value->Show(); //设置显示数字

$graph->Add($barplot); //将柱形图添加到图像中

$graph->title->Set("CDN流量查询"); //设置标题和X-Y轴标题

$graph->xaxis->title->Set("月份");

$graph->yaxis->title->Set("流量(Gbits)");

$graph->title->SetFont(FF_SIMSUN,FS_BOLD); //设置字体

$graph->yaxis->title->SetFont(FF_SIMSUN,FS_BOLD);

$graph->xaxis->title->SetFont(FF_SIMSUN,FS_BOLD);

break;

case 3:

$graph = new PieGraph(400,300);

$graph->SetShadow();

$graph->title->Set("CDN流量查询");

$graph->title->SetFont(FF_SIMSUN,FS_BOLD);

$pieplot = new PiePlot($data);

$pieplot->SetLegends($gDateLocale->GetShortMonth()); //设置图例

$graph->Add($pieplot);

break;

case 4:

$graph = new PieGraph(400,300);

$graph->SetShadow();

$graph->title->Set("CDN流量查询");

$graph->title->SetFont(FF_SIMSUN,FS_BOLD);

$pieplot = new PiePlot3D($data); //创建PiePlot3D对象

$pieplot->SetCenter(0.4); //设置饼图中心的位置

$pieplot->SetLegends($gDateLocale->GetShortMonth()); //设置图例

$graph->Add($pieplot);

break;

default:

echo "graph参数错误";

exit;

}

$graph->Stroke();

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