Borderless Bar Chart

This example demonstrates a horizontal bar chart with no axes, grid lines or and plot area border. It also demonstrates using gradient colors for the bars, and a number of other ChartDirector features.

The key features demonstrated in this example are:

Swap the x and y axes to create a horizontal bar chart using XYChart.swapXY.
Create a gradient color that changes smoothly from dark green to white along a horizontal direction using BaseChart.gradientColor, then use it as the bar color in XYChart.addBarLayer.
Set the plot area background, border and grid line colors to Transparent using XYChart.setPlotArea.
Set the x-axis, y-axis and y-axis labels to Transparent using Axis.setColors.
Set the x-axis font style to deep red 10 points Arial Bold Italic by using the TextBox.setFontStyle and TextBox.setFontColor of the TextBox object that represents the x-axis label prototype (obtained using Axis.setLabels).
Set the aggregate bar label style to deep red 10 points Times Bold Italic using Layer.setAggregateLabelStyle.
Customize the aggregate bar labels by using Layer.setAggregateLabelFormat.

[File: phpdemo/hbar.php]

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

# The data for the bar chart
$data = array(3.9, 8.1, 10.9, 14.2, 18.1, 19.0, 21.2, 23.2, 25.7, 36);

# The labels for the bar chart
$labels = array("Bastic Group", "Simpa", "YG Super", "CID", "Giga Tech", "Indo Digital", "Supreme",
    "Electech", "THP Thunder", "Flash Light");

# Create a XYChart object of size 600 x 250 pixels
$c = new XYChart(600, 250);

# Add a title to the chart using Arial Bold Italic font
$c->addTitle("Revenue Estimation - Year 2002", "Arial Bold Italic");

# Set the plotarea at (100, 30) and of size 400 x 200 pixels. Set the plotarea border, background
# and grid lines to Transparent
$c->setPlotArea(100, 30, 400, 200, Transparent, Transparent, Transparent, Transparent, Transparent);

# Add a bar chart layer using the given data. Use a gradient color for the bars, where the gradient
# is from dark green (0x008000) to white (0xffffff)
$layer = $c->addBarLayer($data, $c->gradientColor(100, 0, 500, 0, 0x008000, 0xffffff));

# Swap the axis so that the bars are drawn horizontally
$c->swapXY(true);

# Set the bar gap to 10%
$layer->setBarGap(0.1);

# Use the format "US$ xxx millions" as the bar label
$layer->setAggregateLabelFormat("US\$ {value} millions");

# Set the bar label font to 10pt Times Bold Italic/dark red (0x663300)
$layer->setAggregateLabelStyle("Times New Roman Bold Italic", 10, 0x663300);

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

# Set the x axis label font to 10pt Arial Bold Italic
$textbox->setFontStyle("Arial Bold Italic");
$textbox->setFontSize(10);

# Set the x axis to Transparent, with labels in dark red (0x663300)
$c->xAxis->setColors(Transparent, 0x663300);

# Set the y axis and labels to Transparent
$c->yAxis->setColors(Transparent, Transparent);

# Output the chart
$viewer = new WebChartViewer("chart1");
$viewer->setChart($c, SVG);

# Include tool tip for the chart
$viewer->setImageMap($c->getHTMLImageMap("", "", "title='{xLabel}: US\${value} millions'"));
?>

<!DOCTYPE html>
<html>
<head>
    <title>Borderless Bar Chart</title>
    <!-- Include ChartDirector Javascript Library to support chart interactions -->
    <script type="text/javascript" src="cdjcv.js"></script>
</head>
<body style="margin:5px 0px 0px 5px">
    <div style="font:bold 18pt verdana;">
        Borderless Bar Chart
    </div>
    <hr style="border:solid 1px #000080; background:#000080" />
    <div style="font:10pt verdana; margin-bottom:1.5em">
        <a href="viewsource.php?file=<?=basename(__FILE__)?>">View Chart Source Code</a>
    </div>
    <!-- ****** Here is the chart image ****** -->
    <?php echo $viewer->renderHTML(); ?>
</body>
</html>