php图形jpgraph操作实例分析

5年以前 | 阅读数：475 次 | 编程语言：PHP

本文实例讲述了php图形jpgraph操作。分享给大家供大家参考，具体如下：


    <?php
    include ("src/jpgraph.php");
    include("src/jpgraph_bar.php");
    include ("src/jpgraph_line.php");
    //设置显示的数据数组；
    //调用类库
    //设置图像的大小
    $graph = new Graph(400,200,"auto");
    $graph->SetScale("textlin");
    //设置图形的边距
    $graph->img->SetMargin(40,180,40,40);
    //设置图形的背景图片，填充方式有：BGIMG_FILLPLOT, BGIMG_FILLFRAME, BGIMG_COPY
    $graph->SetBackgroundImage("abc.jpg",BGIMG_FILLPLOT);
    $graph->img->SetAngle(45); //设置图形在图像中的角度
    //设置背景图片的对比度，must be between -1 <= x <= 1, (0,0)=original image
    $graph->AdjBackgroundImage(0,0);
    //设置投影；
    //$graph->SetShadow();
    //设置标题
    $graph->title->Set("test image");
    //设置标题字体样式
    $graph->title->SetFont(FF_FONT1,FS_BOLD);
    //设置标题的边距
    $graph->title->SetMargin(3);
    //设置图列的位置
    $graph->legend->Pos(0.05,0.5,"right","center");
    //设置图列的投影，颜色
    $graph->legend->SetShadow('darkgray@0.1');
    $graph->legend->SetFillColor('lightblue@0.3');
    //设置x轴的标记
    $graph->xaxis->SetTickLabels($label_x);
    //设置X轴的显示值的角度;
    $graph->xaxis->SetLabelAngle(30);
    //设置x轴标题和字体颜色
    $graph->xaxis->title->Set('Year 2006');
    $graph->xaxis->title->SetFont(FF_FONT1,FS_BOLD);
    $graph->xaxis->title->SetColor('white');
    //设置x轴的字体和颜色
    $graph->xaxis->SetFont(FF_FONT1,FS_BOLD);
    $graph->xaxis->SetColor('yellow');
    //设置y轴的字体和颜色
    $graph->yaxis->SetFont(FF_FONT1,FS_BOLD);
    $graph->yaxis->SetColor('yellow');
    //设置是否显示格子。默认为显示；
    //$graph->ygrid->Show(false);
    //设置格子的颜色和粗细。值越小，格子越粗。
    $graph->ygrid->SetColor('yellow@0.5');
    //设置y轴更优美一些
    $graph->yaxis->scale->SetGrace(20);
    //设置图列的数据
    $bplot1 = new BarPlot($datay1);
    $bplot2 = new BarPlot($datay2);
    //设置图列的填充颜色
    $bplot1->SetFillColor('orange@0.4');
    $bplot2->SetFillColor('brown@0.4');
    //设置值的格式
    $bplot1->value->SetFormat('%d');
    //设置图列标签
    $bplot1->SetLegend('Label 1');
    $bplot2->SetLegend('Label 2');
    //设置图列在图中的阴影
    $bplot1->SetShadow('black@0.4');
    $bplot2->SetShadow('black@0.4');
    //生成图列
    $gbarplot = new GroupBarPlot(array($bplot1,$bplot2));
    $gbarplot->SetWidth(0.9);
    $graph->Add($gbarplot);
    //生成图形
    $graph->Stroke();
    //上面所说的时在生成柱形图，当生成线性图时用下面的方法
    $p1 = new LinePlot($datay);
    $p1->mark->SetType(MARK_FILLEDCIRCLE);
    $p1->mark->SetFillColor("red");
    $p1->mark->SetWidth(4);
    $p1->SetColor("blue");
    $p1->SetCenter();
    $p1->SetLegend("Triumph Tiger -98");
    $graph->Add($p1);
    $p2 = new LinePlot($data2y);
    $p2->mark->SetType(MARK_STAR);
    $p2->mark->SetFillColor("red");
    $p2->mark->SetWidth(4);
    $p2->SetColor("red");
    $p2->SetCenter();
    $p2->SetLegend("New tiger -99");
    $graph->Add($p2);
    // Style can also be specified as SetStyle([1|2|3|4]) or
    // SetStyle("solid"|"dotted"|"dashed"|"lobgdashed")
    $lineplot->SetStyle("dashed");//设置线的样式
    $graph->yaxis->scale->SetGrace(20); //设置y轴更优美一些
    ?>

2.柱形图和饼状图举例


    if($tag == 1)
    {
    $graph = new Graph(600,400,"auto");
    $graph->SetScale("textlin");
    $graph->setMarginColor('lightblue');
    $graph->SetShadow();
    $graph->setMargin(30,100,30,60);
    //设置标题;
    $graph->title->set("文章分类汇总");
    $graph->title->SetMargin(3);
    $graph->title->setfont(FF_SIMSUN,FS_BOLD);
    $graph->title->setcolor('black@0.5');
    $graph->yaxis->title->SetFont(FF_SIMSUN,FS_BOLD);
    $graph->xaxis->title->SetFont(FF_SIMSUN,FS_BOLD);
    $graph->xaxis->SetFont(FF_SIMSUN,FS_NORMAL);
    $graph->xaxis->SetColor('darkblue','black');
    $graph->xaxis->SetTickLabels($name);
    $graph->xaxis->SetLabelAngle(30);
    $bplot = new BarPlot($article_num);
    $bplot->SetFillColor("orange");
    $bplot->value->SetFormat('%d');
    $bplot->SetShadow('darkgray');
    $bplot->value->show();
    $graph->legend->SetFont(FF_SIMSUN,FS_BOLD);
    $bplot->SetLegend("文章数");
    $graph->Add($bplot);
    $graph->Stroke();
    }
    else
    {
    $graph1 = new PieGraph(600,400,"auto");
    $graph1->SetScale("textlin");
    $graph1->SetShadow();
    $graph1->title->setFont(FF_SIMSUN,FS_BOLD);
    $graph1->title->set("用户文章饼形图");
    $graph1->setMargin(30,100,30,60);
    $p1 = new pieplot3d($article_num);
    $p1->setAngle(80);
    $p1->setsize(0.5);
    $p1->setShadow();
    $p1->ExplodeSlice(2);
    $p1->SetCenter(0.4);
    $graph1->legend->SetFont(FF_SIMSUN,FS_NORMAL);
    $graph1->legend->setshadow();
    $p1->SetLegends($name);
    $graph1->Add($p1);
    $graph1->Stroke();
    }
    //生成本地图片
    $graph->Stroke("路径/文件名.png");

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