topxaxisex1.php

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    <?php // content="text/plain; charset=utf-8"
    require_once ("jpgraph/jpgraph.php");
    require_once ("jpgraph/jpgraph_line.php");

    // Some data
    $datay = array(25,29,29,39,55);

    $graph = new Graph(400,200,'auto');
    $graph->img->SetMargin(40,40,40,20);

    $graph->SetScale("linlin");
    $graph->SetShadow();
    $graph->title->Set("Top X-axis");

    // Start at 0
    $graph->yscale->SetAutoMin(0);

    // Add some air around the Y-scale
    $graph->yscale->SetGrace(100);

    // Use built in font
    $graph->title->SetFont(FF_FONT1,FS_BOLD);

    // Adjust the X-axis
    $graph->xaxis->SetPos("max");
    $graph->xaxis->SetLabelSide(SIDE_UP);
    $graph->xaxis->SetTickSide(SIDE_DOWN);

    // Create the line plot
    $p1 = new LinePlot($datay);
    $p1->SetColor("blue");

    // Specify marks for the line plots
    $p1->mark->SetType(MARK_FILLEDCIRCLE);
    $p1->mark->SetFillColor("red");
    $p1->mark->SetWidth(4);

    // Show values
    $p1->value->Show();

    // Add lineplot to graph
    $graph->Add($p1);

    // Output line
    $graph->Stroke();

    ?>