PHP图形图像的典型应用 常用图像的应用（统计图）

基于GD库和JPgraph库

说明：对于具体的Jpgraph类库的用法，请参照官网的文档:http://jpgraph.net/download/manuals/classref/index.html

对于下面涉及到的代码，里面的JPgraph类文件可能路径不一样，我是按照我自己文件存放的路径引入的。你们可自行更改

1、使用柱形图统计月销量额

<?php
    /*
        具体的Jpgraph类库的用法，请参照官网的文档:
        http://jpgraph.net/download/manuals/classref/index.html
    */
    /*****************************使用柱形图统计月销量额**************************/
    include("D:/PHP_Config/jpgraph-3.5.0b1/src/jpgraph.php");
    include("D:/PHP_Config/jpgraph-3.5.0b1/src/jpgraph_bar.php"); //引用柱形图对象所在的文件
    $datay = array(160,180,203,289,405,488,489,408,299,166,187,105); //定义数组
    $graph = new Graph(600,300,"auto"); //创建画布 --要JPgraph库的支持
    $graph->SetScale("textlin");
    $graph->yaxis->scale->SetGrace(20);
    $graph->SetShadow();  //创建画布阴影
    //设置统计图所在画布的位置，左边距40、右边距30、上边距30、下边距40，单位为像素
    $graph->img->SetMargin(40,30,30,40);
    
    $bplot = new BarPlot($datay);  //创建一个矩形的对象
    $bplot->SetFillColor('orange');   //设置柱形图的颜色
    $bplot->value->Show();   //设置显示数字
    $bplot->value->SetFormat('%d');   //在柱形图中显示格式化的图书销量
    
    $graph->Add($bplot);  //将矩形图添加到图像中
    $graph->SetMarginColor("lightblue");  //设置画布背景色为浅蓝色
    $graph->title->Set("<<PHP for Introduction 2009>> Annual sales statistics");  //创建标题
    //设置X轴坐标文字
    $a=array("1 月","2 月","3 月","4 月","5 月","6 月","7 月","8 月","9 月","10 月","11 月","12 月");
    $graph->xaxis->SetTickLabels($a);   //设置X轴
    $graph->title->SetFont(FF_SIMSUN);  //设置标题字体
    $graph->xaxis->SetFont(FF_SIMSUN);  //设置X轴的字体
    $graph->Stroke();  //输出图像
?>

2、使用折线图统计月销量额

<?php
    /***************************使用折线图统计月销量额*******************************/
    include("D:/PHP_Config/jpgraph-3.5.0b1/src/jpgraph.php");
    include("D:/PHP_Config/jpgraph-3.5.0b1/src/jpgraph_line.php"); //引用折线图LinePlot类文件
    //定义数组
    $datay = array(8320,9360,14956,17028,13060,15376,25428,16216,28548,18632,22724,28460); 
    $graph = new Graph(600,300,"auto");
    //设置统计图所在画布的位置，左边距50，右边距40，上边距30，下边距40，单位为像素
    $graph->img->SetMargin(50,40,30,40);
    $graph->img->SetAntiAliasing();  //设置折线的平滑状态
    $graph->SetScale("textlin");  //设置刻度样式
    $graph->SetShadow();   //创建画布阴影
    $graph->title->Set("<<PHP for Introduction 2009>> Annual sales statistics");  //设置标题
    $graph->title->SetFont(FF_SIMSUN,FS_BOLD);  //设置标题字体
    $graph->SetMarginColor("lightblue");  //设置画布背景色为淡蓝色
    $graph->yaxis->title->SetFont(FF_SIMSUN,FS_BOLD);   //设置Y轴标题的字体
    $graph->xaxis->SetPos("min");   //
    $graph->yaxis->HideZeroLabel();
    $graph->ygrid->SetFill(true,'#EFEFEF@0.5','#BBCCFF@0.5');
    //X轴
    $a=array("1 月","2 月","3 月","4 月","5 月","6 月","7 月","8 月","9 月","10 月","11 月","12 月");
    $graph->xaxis->SetTickLabels($a);  //设置X轴
    $graph->xaxis->SetFont(FF_SIMSUN);  //设置X坐轴的字体
    $graph->yscale->SetGrace(20);  
    
    $p1 = new LinePlot($datay);  //创建折线图对象
    $p1->mark->SetType(MARK_FILLEDCIRCLE);  //设置数据坐标点为圆形标记
    $p1->mark->SetFillColor("red");   //设置填充颜色
    $p1->mark->SetWidth(4);  //设置圆形标记的直径为4像素
    $p1->SetColor("blue");  //设置折线颜色为蓝色
    $p1->SetCenter();  //在X轴的各坐标点中心位置绘制折线
    
    $graph->Add($p1);  //在统计图上绘制折线
    $graph->Stroke();  //输出图像
?>

3、使用饼形图(扇形图)统计月销量额

<?php
    /*************************使用3D饼图进行统计***************************/
    include("D:/PHP_Config/jpgraph-3.5.0b1/src/jpgraph.php");
    include("D:/PHP_Config/jpgraph-3.5.0b1/src/jpgraph_pie.php");
    //引用 3D 饼形图 PiePlot3D对象所在的类文件
    include("D:/PHP_Config/jpgraph-3.5.0b1/src/jpgraph_pie3d.php");
    //定义数组
    $data = array(266036,295621,335851,254256,254254,685425);
    $graph = new PieGraph(540,260,'auto');  //创建画布
    $graph->SetShadow();  //设置画布阴影
    
    //创建标题
    $graph->title->Set("<<PHP for Introduction 2009>> Annual sales statistics -3DPie");
    $graph->title->SetFont(FF_SIMSUN,FS_BOLD);  //设置标题字体
    $graph->legend->SetFont(FF_SIMSUN,FS_NORMAL);  //设置图例字体
    
    $p1 = new PiePlot3D($data);  //创建3D饼图对象
    $p1->SetLegends(array("IT","Appliance","Daily","Clothing","Health","Food"));
    $targ = array("D:/PHP_Config/jpgraph-3.5.0b1/src/Examples/pie3d_csimex1.php?v=1","D:/PHP_Config/jpgraph-3.5.0b1/src/Examples/pie3d_csimex1.php?v=2","D:/PHP_Config/jpgraph-3.5.0b1/src/Examples/pie3d_csimex1.php?v=3","D:/PHP_Config/jpgraph-3.5.0b1/src/Examples/pie3d_csimex1.php?v=4","D:/PHP_Config/jpgraph-3.5.0b1/src/Examples/pie3d_csimex1.php?v=5","D:/PHP_Config/jpgraph-3.5.0b1/src/Examples/pie3d_csimex1.php?v=6");
    $alts = array("val=%d","val=%d","val=%d","val=%d","val=%d","val=%d");
    $p1->SetCSIMTargets($targ,$alts);
    $p1->SetCenter(0.4,0.5);  //设置饼图所在画布的位置
    
    $graph->Add($p1);  //将3D饼形图添加到图像中
    $graph->StrokeCSIM();  //将图像输出到游览器
?>