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                專門提供圖表的類庫。它使得作圖變成了一件非常簡單的事情,你只需從數據庫中取出相關數據,定義標題,圖表類型,然后的事情就交給JpGraph,只需掌握為數不多的JpGraph內置函數(可以參照JpGraph附帶例子學習),就可以畫出非常炫目的圖表! 下載地址 https://github.com/huasofoundries/jpgraph 引入類庫 ~~~ require_once "/src/jpgraph.php"; //核心文件 require_once "/src/jpgraph_line.php"; //線性圖文件 ~~~ 引入數據 ~~~ $data=array(1=>1,...); ~~~ 得到Graph對象(創建畫布) `$graph=new Graph(w,h); //w-畫布長;h-畫布寬` 設置X和Y軸樣式及Y軸的最大值最小值 ~~~ $graph->SetScale($aAxisType,$min,$max);//如:$aAxisType='textint';則x坐標樣式為text,y坐標樣式為int ~~~ 設置圖像樣式,如加入陰影 `$graph->SetShadow();` 設置圖像邊界范圍 `$graph->img->setMargin($up,$right,$down,$left);//順時針填充值` 設置標題 `$graph->title->Set($title);//中文參見問題解決` 得到曲線實例(插入數據) `$linePlot=new LinePlot($data);` 將曲線加入到圖像中 `$graph->Add($linePlot);` 設置曲線的顏色 `$linePlot->setColor($color);//代碼位置參見問題解決` 設置坐標軸名稱 ~~~ $graph->xaxis->title->Set($xName); //X坐標軸名稱 $graph->yaxis->title->Set($yName);//y坐標軸名稱 ~~~ 設置曲線的圖例 `$linePlot->SetLegend($legend);//中文參見問題解決` 設置圖例樣式 `$graph->legend->setlayout(LEGEND_HOR);` 設置圖例位置 `$graph->legend->Pos(0.45,0.9,"center","bottom");` 輸出 ~~~ $graph->Stroke();//將圖像輸出到瀏覽器 $graph->Stroke($path);//如:$graph->Stroke('./test.png');保存到當前目錄下并命名test ~~~
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