ChartDirector 7.0 (PHP Edition)

Multi-Line Chart (1)




This example demonstrates a chart with multiple lines of different styles. It also demonstrates using frame with rounded corners, title with glass shading effect, both vertical and horizontal grid lines, and a legend at the top of the plot area.

Source Code Listing

[File: phpdemo/multiline.php]
<?php
require_once("../lib/phpchartdir.php");

# The data for the line chart
$data0 = array(42, 49, 33, 38, 51, 46, 29, 41, 44, 57, 59, 52, 37, 34, 51, 56, 56, 60, 70, 76, 63,
    67, 75, 64, 51);
$data1 = array(50, 55, 47, 34, 42, 49, 63, 62, 73, 59, 56, 50, 64, 60, 67, 67, 58, 59, 73, 77, 84,
    82, 80, 84, 98);
$data2 = array(36, 28, 25, 33, 38, 20, 22, 30, 25, 33, 30, 24, 28, 15, 21, 26, 46, 42, 48, 45, 43,
    52, 64, 60, 70);

# The labels for the line chart
$labels = array("0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "10", "11", "12", "13", "14",
    "15", "16", "17", "18", "19", "20", "21", "22", "23", "24");

# Create an XYChart object of size 600 x 300 pixels, with a light blue (EEEEFF) background, black
# border, 1 pxiel 3D border effect and rounded corners
$c = new XYChart(600, 300, 0xeeeeff, 0x000000, 1);
$c->setRoundedFrame();

# Set the plotarea at (55, 58) and of size 520 x 195 pixels, with white background. Turn on both
# horizontal and vertical grid lines with light grey color (0xcccccc)
$c->setPlotArea(55, 58, 520, 195, 0xffffff, -1, -1, 0xcccccc, 0xcccccc);

# Add a legend box at (50, 30) (top of the chart) with horizontal layout. Use 9pt Arial Bold font.
# Set the background and border color to Transparent.
$c->addLegend(50, 30, false, "Arial Bold", 9)->setBackground(Transparent);

# Add a title box to the chart using 15pt Times Bold Italic font, on a light blue (CCCCFF)
# background with glass effect. white (0xffffff) on a dark red (0x800000) background, with a 1 pixel
# 3D border.
$c->addTitle("Application Server Throughput", "Times New Roman Bold Italic", 15)->setBackground(
    0xccccff, 0x000000, glassEffect());

# Add a title to the y axis
$c->yAxis->setTitle("MBytes per hour");

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

# Display 1 out of 3 labels on the x-axis.
$c->xAxis->setLabelStep(3);

# Add a title to the x axis
$c->xAxis->setTitle("Jun 12, 2006");

# Add a line layer to the chart
$layer = $c->addLineLayer2();

# Set the default line width to 2 pixels
$layer->setLineWidth(2);

# Add the three data sets to the line layer. For demo purpose, we use a dash line color for the last
# line
$layer->addDataSet($data0, 0xff0000, "Server #1");
$layer->addDataSet($data1, 0x008800, "Server #2");
$layer->addDataSet($data2, $c->dashLineColor(0x3333ff, DashLine), "Server #3");

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

# Include tool tip for the chart
$viewer->setImageMap($c->getHTMLImageMap("", "",
    "title='[{dataSetName}] Hour {xLabel}: {value} MBytes'"));
?>

<!DOCTYPE html>
<html>
<head>
    <title>Multi-Line Chart (1)</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;">
        Multi-Line Chart (1)
    </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>