JPGRAPH的实例

使用柱形图统计图书月销售量

<?php

	include("jpgraph/src/jpgraph.php");
	include("jpgraph/src/jpgraph_bar.php");							//引用柱形图对象所在文件
	$datay=array(160,180,203,289,405,488,489,408,299,166,187,105);	
	$graph=new Graph(600,300,"auto");								//创建画布
	$graph->SetScale("textlin");
	$graph->yaxis->scale->SetGrace(20);
	$graph->SetShadow();											//创建画布阴影
	//设置统计图所在的画布位置
	$graph->img->SetMargin(40,30,30,40);
	$bplot=new BarPlot($datay);										//创建一个矩形对象
	$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馆
	$graph->Add($bplot);											//将柱形图添加到图像中
	$graph->SetMarginColor("lightblue");							//设置画布背景色为淡蓝色
	$graph->title->Set("《PHP5 从入门到精通》");					//创建标题
	//设置X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");
	$graph->xaxis->setTickLables($a);
	$graph->title->SetFont(FF_SIMSUN);								//设置标题字体
	$graph->xaxis->SetFont(FF_SIMSUN);								//设置X轴字体
	
	$graph->Stroke();												//输出图像
?>