【问题标题】:JpGraph Piechart Background ColorJpGraph 饼图背景颜色
【发布时间】:2012-10-25 04:55:52
【问题描述】:

我在 PHP 中使用 JpGraph。我可以为大多数图表设置背景颜色

$graph->SetBackgroundGradient($bgcolor, $bgcolor, GRAD_HOR, BGRAD_MARGIN);

但是如何为饼图设置背景颜色?

这是最强大的 PHP 驱动图表,但仍然没有 $graph->SetBackgroundColor($bgcolor) 函数。

Br

【问题讨论】:

    标签: php colors jpgraph


    【解决方案1】:
    <?php // content="text/plain; charset=utf-8"
    require_once ('jpgraph/jpgraph.php');
    require_once ('jpgraph/jpgraph_pie.php');
    require_once ('jpgraph/jpgraph_pie3d.php');
    
    // Some data
    $data = array(
        array(80,18,15,17),
        array(35,28,6,34),
        array(10,28,10,5),
        array(22,22,10,17));
    
    $piepos = array(0.2,0.4,0.65,0.28,0.25,0.75,0.8,0.75);
    $titles = array('USA','Sweden','South America','Australia');
    
    $n = count($piepos)/2;
    
    // A new graph
    $graph = new PieGraph(550,400,'auto');
    
    // Specify margins since we put the image in the plot area
    $graph->SetMargin(1,1,40,1);
    $graph->SetMarginColor('navy');
    $graph->SetShadow(false);
    
    // Setup background
    $graph->SetBackgroundImage('worldmap1.jpg',BGIMG_FILLPLOT);
    
    // Setup title
    $graph->title->Set("Pie plots with background image");
    $graph->title->SetFont(FF_ARIAL,FS_BOLD,20);
    $graph->title->SetColor('white');
    
    $p = array();
    // Create the plots
    for( $i=0; $i < $n; ++$i ) {
        $d = "data$i";
        $p[] = new PiePlot3D($data[$i]);
    }
    
    // Position the four pies
    for( $i=0; $i < $n; ++$i ) {
        $p[$i]->SetCenter($piepos[2*$i],$piepos[2*$i+1]);
    }
    
    // Set the titles
    for( $i=0; $i < $n; ++$i ) {
        $p[$i]->title->Set($titles[$i]);
        $p[$i]->title->SetColor('white');
        $p[$i]->title->SetFont(FF_ARIAL,FS_BOLD,12);
    }
    
    // Label font and color setup
    for( $i=0; $i < $n; ++$i ) {
        $p[$i]->value->SetFont(FF_ARIAL,FS_BOLD);
        $p[$i]->value->SetColor('white');
    }
    
    // Show the percetages for each slice
    for( $i=0; $i < $n; ++$i ) {
        $p[$i]->value->Show();
    }
    
    // Label format
    for( $i=0; $i < $n; ++$i ) {
        $p[$i]->value->SetFormat("%01.1f%%");
    }
    
    // Size of pie in fraction of the width of the graph
    for( $i=0; $i < $n; ++$i ) {
        $p[$i]->SetSize(0.15);
    }
    
    // Format the border around each slice
    
    
    for( $i=0; $i < $n; ++$i ) {
        $p[$i]->SetEdge(false);
        $p[$i]->ExplodeSlice(1);
    }
    
    // Use one legend for the whole graph
    $p[0]->SetLegends(array("May","June","July","Aug"));
    $graph->legend->Pos(0.05,0.35);
    $graph->legend->SetShadow(false);
    
    for( $i=0; $i < $n; ++$i ) {
        $graph->Add($p[$i]);
    }
    
    $graph->Stroke();
    ?>
    

    参考:http://jpgraph.net/download/manuals/chunkhtml/ch16.html

    【讨论】:

      【解决方案2】:

      【讨论】:

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