example3.0.3.php

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

    // Some (random) data
    $ydata = array(17,3,'',10,7,'',3,19,9,7);

    // Size of the overall graph
    $width=350;
    $height=250;

    // Create the graph and set a scale.
    // These two calls are always required
    $graph = new Graph($width,$height);
    $graph->SetScale('intlin');
    $graph->SetShadow();

    // Setup margin and titles
    $graph->SetMargin(40,20,20,40);
    $graph->title->Set('NULL values');
    $graph->xaxis->title->Set('x-title');
    $graph->yaxis->title->Set('y-title');

    $graph->yaxis->title->SetFont( FF_ARIAL , FS_BOLD, 9 );
    $graph->xaxis->title->SetFont( FF_ARIAL , FS_BOLD, 9 );

    $graph->yaxis->SetColor('blue');

    // Create the linear plot
    $lineplot=new LinePlot($ydata);
    $lineplot->SetColor( 'blue' );
    $lineplot->SetWeight( 2 );   // Two pixel wide

    // Add the plot to the graph
    $graph->Add($lineplot);

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