php使用Jpgraph繪制復雜X-Y坐標圖的方法

2024-05-04 23:36:06

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這篇文章主要介紹了php使用Jpgraph繪制復雜X-Y坐標圖的方法,通過設置圖像陰影、邊距、字體、顏色、曲線等實現Jpgraph繪制復雜坐標圖的功能,非常簡單實用,需要的朋友可以參考下

本文實例講述了php使用Jpgraph繪制復雜X-Y坐標圖的方法。分享給大家供大家參考。具體實現方法如下：

<?php

include ("src/jpgraph.php");

include ("src/jpgraph_line.php");

$data1 = array(19,23,34,38,45,67,71,78,85,87,90,96); //第一條曲線的數組

$data2 = array(523,634,371,278,685,587,490,256,398,545,367,577); //第二條曲線的數組

$graph = new Graph(400,300); //創建新的Graph對象

$graph->SetScale("textlin");

$graph->SetY2Scale("lin");

$graph->SetShadow(); //設置圖像的陰影樣式

$graph->img->SetMargin(40,50,20,70); //設置圖像邊距

$graph->title->Set("年度收支表"); //設置圖像標題

$lineplot1=new LinePlot($data1); //創建設置兩條曲線對象

$lineplot2=new LinePlot($data2);

$graph->Add($lineplot1); //將曲線放置到圖像上

$graph->AddY2($lineplot2);

$graph->xaxis->title->Set("月份"); //設置坐標軸名稱

$graph->yaxis->title->Set("兆美元");

$graph->y2axis->title->Set("兆美元");

$graph->title->SetFont(FF_SIMSUN,FS_BOLD); //設置字體

$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"); //設置顏色

$lineplot2->SetColor("blue");

$lineplot1->SetLegend("Cost Amount"); //設置圖例名稱

$lineplot2->SetLegend("Revenue Amount");

$graph->legend->SetLayout(LEGEND_HOR); //設置圖例樣式和位置

$graph->legend->Pos(0.4,0.95,"center","bottom");

$graph->Stroke(); //輸出圖像

?>