addTitle("Month Revenue for Star Tech for $selectedYear", "timesbi.ttf", 18);
# Set the plotarea at (60, 40) and of size 500 x 280 pixels. Use a vertical gradient
# color from light blue (eeeeff) to deep blue (0000cc) as background. Set border and
# grid lines to white (ffffff).
$c->setPlotArea(60, 40, 500, 280, $c->linearGradientColor(60, 40, 60, 280, 0xeeeeff,
0x0000cc), -1, 0xffffff, 0xffffff);
# Add a red line (ff0000) chart layer using the data
$lineLayerObj = $c->addLineLayer();
$dataSet = $lineLayerObj->addDataSet($data, 0xff0000, "Revenue");
# Set the line width to 3 pixels
$dataSet->setLineWidth(3);
# Use a 13 point circle symbol to plot the data points
$dataSet->setDataSymbol(CircleSymbol, 13);
# Set the labels on the x axis. In this example, the labels must be Jan - Dec.
$labels = array("Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sept",
"Oct", "Nov", "Dec");
$c->xAxis->setLabels($labels);
# When auto-scaling, use tick spacing of 40 pixels as a guideline
$c->yAxis->setTickDensity(40);
# Add a title to the x axis to reflect the selected year
$c->xAxis->setTitle("Year $selectedYear", "timesbi.ttf", 12);
# Add a title to the y axis
$c->yAxis->setTitle("USD (millions)", "timesbi.ttf", 12);
# Set axis label style to 8pts Arial Bold
$c->xAxis->setLabelStyle("arialbd.ttf", 8);
$c->yAxis->setLabelStyle("arialbd.ttf", 8);
# Set axis line width to 2 pixels
$c->xAxis->setWidth(2);
$c->yAxis->setWidth(2);
# Create the image and save it in a temporary location
$chart1URL = $c->makeSession("chart1");
# Create an image map for the chart
$imageMap = $c->getHTMLImageMap("clickpie.php?year=$selectedYear", "",
"title='{xLabel}: US\$ {value|0}M'");
?>
Simple Clickable Line Chart
