Vector Chart

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

# The (x, y) coordinates of the starting point of the vectors
$dataX = array(20, 40, 60, 80, 100, 20, 40, 60, 80, 100, 20, 40, 58, 62, 80, 100, 20, 40, 60, 80,
    100, 20, 40, 60, 80, 100);
$dataY = array(20, 20, 20, 20, 20, 40, 40, 40, 40, 40, 60, 60, 60, 60, 60, 60, 80, 80, 80, 80, 80,
    100, 100, 100, 100, 100);

# The lengths (radii) and directions (angles) of the vectors
$dataR = array(6, 6, 9, 6, 6, 6, 9, 12, 9, 6, 9, 12, 12, 12, 12, 9, 6, 9, 12, 9, 6, 6, 6, 9, 6, 6);
$dataA = array(-45, -30, 0, 30, 45, -60, -45, 0, 45, 60, -90, -90, -90, 90, 90, 90, -120, -135, 180,
    135, 120, -135, -150, 180, 150, 135);

# Create a XYChart object of size 450 x 390 pixels
$c = new XYChart(450, 390);

# Set the plotarea at (55, 40) and of size 350 x 300 pixels, with a light grey border (0xc0c0c0).
# Turn on both horizontal and vertical grid lines with light grey color (0xc0c0c0)
$c->setPlotArea(55, 40, 350, 300, -1, -1, 0xc0c0c0, 0xc0c0c0, -1);

# Add a title to the chart using 18pt Times Bold Itatic font.
$c->addTitle("Vector Chart Demonstration", "Times New Roman Bold Italic", 18);

# Add a title to the y axis using 12pt Arial Bold Italic font
$c->yAxis->setTitle("Y Axis Title", "Arial Bold Italic", 12);

# Add a title to the x axis using 12pt Arial Bold Italic font
$c->xAxis->setTitle("X Axis Title", "Arial Bold Italic", 12);

# Set the axes line width to 3 pixels
$c->xAxis->setWidth(3);
$c->yAxis->setWidth(3);

# Add a vector layer to the chart using blue (0000CC) color, with vector arrow size set to 11 pixels
$c->addVectorLayer($dataX, $dataY, $dataR, $dataA, YAxisScale, 0x0000cc)->setArrowHead(11);

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

# Include tool tip for the chart
$viewer->setImageMap($c->getHTMLImageMap("", "",
    "title='Vector at ({x}, {value}): Length = {len}, Angle = {dir} deg'"));
?>

<!DOCTYPE html>
<html>
<head>
    <title>Vector 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;">
        Vector 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>