common-obj-graph.php

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    <?php
    require_once ('jpgraph/jpgraph.php');
    require_once ('jpgraph/jpgraph_line.php');

    $ydata = array(11,3,8,12,5,1,9,13,5,7);
    $y2data = array(354,200,265,99,111,91,198,225,293,251);

    // Create the graph and specify the scale for both Y-axis
    $width=550;$height=400;
    $graph = new Graph(550,400);
    $graph->SetScale('textlin');
    $graph->SetY2Scale('lin');
    $graph->SetShadow();

    // Adjust the margin
    $graph->SetMargin(50,150,60,80);

    // Create the two linear plot
    $lineplot=new LinePlot($ydata);
    $lineplot2=new LinePlot($y2data);

    // Add the plot to the graph
    $graph->Add($lineplot);
    $graph->AddY2($lineplot2);
    $lineplot2->SetColor('orange');
    $lineplot2->SetWeight(2);

    // Adjust the axis color
    $graph->y2axis->SetColor('darkred');
    $graph->yaxis->SetColor('blue');

    $graph->title->SetFont(FF_ARIAL, FS_BOLD, 14);
    $graph->title->Set('Using JpGraph Library');
    $graph->title->SetMargin(10);

    $graph->subtitle->SetFont(FF_ARIAL, FS_BOLD, 10);
    $graph->subtitle->Set('(common objects)');

    $graph->xaxis->title->SetFont(FF_ARIAL, FS_BOLD, 10);
    $graph->xaxis->title->Set('X-title');
    $graph->yaxis->title->SetFont(FF_ARIAL, FS_BOLD, 10);
    $graph->yaxis->title->Set('Y-title');

    // Set the colors for the plots
    $lineplot->SetColor('blue');
    $lineplot->SetWeight(2);
    $lineplot2->SetColor('darkred');
    $lineplot2->SetWeight(2);

    // Set the legends for the plots
    $lineplot->SetLegend('Plot 1');
    $lineplot2->SetLegend('Plot 2');

    // Adjust the legend position
    $graph->legend->SetPos(0.05,0.5,'right','center');

    // Display the graph
    $graph->Stroke();
    ?>