PHP uses Jpgraph to draw advanced coordinate diagrams

This article mainly introduces the method of using Jpgraph to draw complex X-Y coordinate charts in PHP. By setting image shadows, margins, fonts, colors, curves, etc., Jpgraph can draw complex coordinate charts. I hope to be helpful.

The specific implementation method is as follows:

SetScale("textlin"); 
$graph->SetY2Scale("lin"); 
$graph->SetShadow(); //设置图像的阴影样式 
$graph->img->SetMargin(40,50,20,70); //设置图像边距 
$graph->title->Set("年度收支表"); //设置图像标题 
$lineplot1=new LinePlot($data1); //创建设置两条曲线对象 
$lineplot2=new LinePlot($data2); 
$graph->Add($lineplot1); //将曲线放置到图像上 
$graph->AddY2($lineplot2); 
$graph->xaxis->title->Set("月份"); //设置坐标轴名称 
$graph->yaxis->title->Set("兆美元"); 
$graph->y2axis->title->Set("兆美元"); 
$graph->title->SetFont(FF_SIMSUN,FS_BOLD); //设置字体 
$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"); //设置颜色 
$lineplot2->SetColor("blue"); 
$lineplot1->SetLegend("Cost Amount"); //设置图例名称 
$lineplot2->SetLegend("Revenue Amount"); 
$graph->legend->SetLayout(LEGEND_HOR); //设置图例样式和位置 
$graph->legend->Pos(0.4,0.95,"center","bottom"); 
$graph->Stroke(); //输出图像 
?>

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