ChartDirector Ver 5.0 (PHP Edition)

Multi-Shape Bar Chart

This example demonstrates a multi-bar chart in which each data set has a different bar shape.
The bar shapes are specified using BarLayer.setBarShape. See Shape Specification on how built-in and custom shapes are defined in ChartDirector.

Source Code Listing

[File: phpdemo/multishapebar.php]

    <?php
    require_once("../lib/phpchartdir.php");

    # The data for the bar chart
    $data0 = array(100, 125, 245, 147);
    $data1 = array(85, 156, 179, 211);
    $data2 = array(97, 87, 56, 267);
    $labels = array("1st Quarter", "2nd Quarter", "3rd Quarter", "4th Quarter");

    # Create a XYChart object of size 600 x 350 pixels
    $c = new XYChart(600, 350);

    # Add a title to the chart using 14 pts Arial Bold Italic font
    $c->addTitle("Annual Product Revenue", "arialbi.ttf", 14);

    # Set the plot area at (50, 60) and of size 500 x 240. Use two alternative background
    # colors (f8f8f8 and ffffff)
    $c->setPlotArea(50, 60, 500, 240, 0xf8f8f8, 0xffffff);

    # Add a legend box at (55, 22) using horizontal layout, with transparent background
    $legendObj = $c->addLegend(55, 22, false);
    $legendObj->setBackground(Transparent);

    # Set the x axis labels
    $c->xAxis->setLabels($labels);

    # Draw the ticks between label positions (instead of at label positions)
    $c->xAxis->setTickOffset(0.5);

    # Add a multi-bar layer with 3 data sets and 9 pixels 3D depth
    $layer = $c->addBarLayer2(Side, 9);
    $layer->addDataSet($data0, -1, "Product A");
    $layer->addDataSet($data1, -1, "Product B");
    $layer->addDataSet($data2, -1, "Product C");

    # Set data set 1 to use a bar shape of a 6-pointed star
    $layer->setBarShape(StarShape(6), 0);

    # Set data set 2 to use a bar shapre of a 6-sided polygon
    $layer->setBarShape(PolygonShape(6), 1);

    # Set data set 3 to use an X bar shape
    $layer->setBarShape(Cross2Shape(), 2);

    # Add a title to the y-axis
    $c->yAxis->setTitle("Revenue (USD in millions)");

    # Add a title to the x axis
    $c->xAxis->setTitle("Year 2005");

    # Output the chart
    header("Content-type: image/png");
    print($c->makeChart2(PNG));
    ?>

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