Jpgraph创建折线图统计图书走势

一 代码

<?php
require_once 'src/jpgraph.php';     //导入Jpgraph类库
require_once 'src/jpgraph_line.php';     //导入Jpgraph类库的柱状图功能
$data1 = array(89, 78, 99, 65, 92, 85 ,85 ,55, 64, 79, 85, 98);     //设置统计数据
$data2 = array(68, 70, 69, 80, 50, 60 ,75 ,65, 64, 80, 75, 65);     //设置统计数据
$graph = new Graph(1000, 400);
$graph->SetScale("textlin");
$graph->setY2Scale("lin");
$graph->SetShadow();
$graph->img->SetMargin(50, 60, 50, 20);
$graph->title->Set("图书销售走势表");
$lineplot1 = new LinePlot($data1);
$lineplot2 = new LinePlot($data2);
$graph->Add($lineplot1);
$graph->AddY2($lineplot2);
$graph->xaxis->title->Set("月份");
$graph->yaxis->title->Set("book A销售金额（万元）");
$graph->y2axis->title->Set("book B销售金额（万元）");
$graph->title->SetFont(FF_SIMSUN, FS_BOLD);
$graph->yaxis->title->SetFont(FF_SIMSUN, FS_BOLD);
$graph->y2axis->title->SetFont(FF_SIMSUN, FS_BOLD);
$graph->xaxis->title->SetFont(FF_SIMSUN, FS_BOLD);
$lineplot1->SetColor('red');
$lineplot2->SetColor('blue');
$lineplot1->SetLegend('book A');
$lineplot2->SetLegend('book B');
$graph->legend->SetLayout(LEGEND_HOR);
$graph->legend->Pos(0.4, 0.95, 'center', 'bottom');
$graph->Stroke();

 

二 运行结果