PHP擴充類JpGraph繪制統計圖像 (一) 圖表繪制

一、繪制線性圖表

<?php
 //引入類庫
 require_once "/data/webroot/resource/php/src/jpgraph.php";
 require_once "/data/webroot/resource/php/src/jpgraph_line.php";
 $data=array(0=>-21,1=>-3,2=>12,3=>19,4=>23,5=>29,6=>30,7=>22,8=>26,9=>18,10=>5,11=>-10);//第一條資料
 $data2y=array(0=>3,1=>12,2=>18,3=>30,4=>28,5=>33,6=>43,7=>39,8=>36,9=>29,10=>15,11=>10);//第二條資料
 //得到Graph對象
 $graph=new Graph(400,400);
 //設定X和Y軸樣式及Y軸的最大值最小值
 $graph->SetScale("textint",-30,50);
 //設定右側Y軸樣式及其最大值最小值
 $graph->SetY2Scale("int",-30,50);
 //設定圖像樣式，加入陰影
 $graph->SetShadow();
 //設定圖像邊界範圍
 $graph->img->setMargin(40,30,50,70);
 //設定标題
 $graph->title->Set("this is a test X-Y-Y");
 //得到曲線執行個體
 $linePlot=new LinePlot($data);
 //得到第二條曲線
 $linePlot2y=new LinePlot($data2y);
 //将曲線加入到圖像中
 $graph->Add($linePlot);
 $graph->Add($linePlot2y);
 //設定三個坐标軸名稱
 $graph->xaxis->title->Set("Month");
 $graph->yaxis->title->Set("beijing");
 $graph->y2axis->title->Set("ShangHai");
 //設定兩條曲線的顔色



 //設定兩條曲線的圖例
 $linePlot->SetLegend("Beijing");
 $linePlot2y->SetLegend("Shanghai");
 //設定圖例樣式
 $graph->legend->setlayout(LEGEND_HOR);
 $graph->legend->Pos(0.45,0.9,"center","bottom");
 //将圖像輸出到浏覽器
 $graph->Stroke();      

二、繪制柱狀圖表

<?php
 //引入類庫
 require_once "/data/webroot/resource/php/src/jpgraph.php";
 require_once "/data/webroot/resource/php/src/jpgraph_bar.php";
 //柱形圖模拟資料
 $data=array(0=>-21,1=>-3,2=>12,3=>19,4=>23,5=>29,6=>30,7=>22,8=>26,9=>18,10=>5,11=>-10);
 //建立背景圖
 $graph=new Graph(400,300);
 //設定刻度樣式
 $graph->SetScale("textlin");
 //設定邊界範圍
 $graph->img->SetMargin(30,30,80,30);
 //設定标題
 $graph->title->Set("BarPlot test");
 //得到柱形圖對象
 $barPlot=new BarPlot($data);
 //設定柱形圖圖例
 $barPlot->SetLegend("beijing");
 //顯示柱形圖代表資料的值
 $barPlot->value->show();
 //将柱形圖加入到背景圖
 $graph->Add($barPlot);
 //設定柱形圖填充顔色


 //設定邊框顔色


 //将柱形圖輸出到浏覽器
 $graph->Stroke();      

三、繪制餅圖

<?php
 require_once "/data/webroot/resource/php/src/jpgraph.php";
 require_once "/data/webroot/resource/php/src/jpgraph_pie.php";
 //模拟資料
 $data=array(0=>3.5,1=>4.6,2=>9.1,3=>21.9,4=>42.3,5=>90.7,6=>183.5,7=>127.5,8=>61.4,9=>33.5,10=>11.5,11=>4.4);
 //建立畫布
 $graph=new PieGraph(800,500);
 //設定圖像邊界範圍
 $graph->img->SetMargin(30,30,80,30);
 //設定标題
 $graph->title->Set("PiePlot Test");
 //得到餅圖對象
 $piePlot=new PiePlot($data);
 //設定圖例


 //設定圖例位置
 $graph->legend->Pos(0.01,0.45,"left","top");
 //添加到畫布中
 $graph->Add($piePlot);
 //輸出
 $graph->Stroke();      

<?php
 require_once "/data/webroot/resource/php/src/jpgraph.php";
 require_once "/data/webroot/resource/php/src/jpgraph_pie.php";
 require_once "/data/webroot/resource/php/src/jpgraph_pie3d.php";
 $data=array(0=>3.5,1=>4.6,2=>9.1,3=>21.9,4=>42.3,5=>90.7,6=>183.5,7=>127.5,8=>61.4,9=>33.5,10=>11.5,11=>4.4);
 //建立畫布
 $graph=new pieGraph(500,500);
 //設定圖像邊界範圍
 $graph->img->SetMargin(30,30,80,30);
 //設定标題
 $graph->title->Set("piePlot3d Test");
 //得到3D餅圖對象
 $piePlot3d=new piePlot3d($data);
 //設定圖例
 $piePlot3d->SetLegends(array("Jan","Feb","Mar","Apr","May","Jun","Jul","Aug","Sep","Oct","Nov","Dec"));
 //設定圖例位置
 $graph->legend->Pos(0.1,0.15,"left","center");
 //将繪制好的3D餅圖加入到畫布中


 //輸出
 $graph->Stroke();