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

# The data for the line chart
$data0 = array(42, 49, 33, 38, 64, 56, 29, 41, 44, 57, 59, 42);
$data1 = array(65, 75, 47, 34, 42, 49, 73, 62, 90, 69, 66, 78);
$data2 = array(36, 28, 25, 28, 38, 20, 22, 30, 25, 33, 30, 24);
$labels = array("Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct",
    "Nov", "Dec");

# Create a XYChart object of size 600 x 375 pixels
$c = new XYChart(600, 375);

# Add a title to the chart using 18 pts Times Bold Italic font
$c->addTitle("Product Line Global Revenue", "timesbi.ttf", 18);

# Set the plotarea at (50, 55) and of 500 x 280 pixels in size. Use a vertical
# gradient color from light blue (f9f9ff) to sky blue (aaccff) as background. Set
# border to transparent and grid lines to white (ffffff).
$c->setPlotArea(50, 55, 500, 280, $c->linearGradientColor(0, 55, 0, 335, 0xf9fcff,
    0xaaccff), -1, Transparent, 0xffffff);

# Add a legend box at (50, 28) using horizontal layout. Use 10pts Arial Bold as font,
# with transparent background.
$legendObj = $c->addLegend(50, 28, false, "arialbd.ttf", 10);
$legendObj->setBackground(Transparent);

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

# Set y-axis tick density to 30 pixels. ChartDirector auto-scaling will use this as
# the guideline when putting ticks on the y-axis.
$c->yAxis->setTickDensity(30);

# 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);

# Add axis title using 10pts Arial Bold Italic font
$c->yAxis->setTitle("Revenue in US millions", "arialbi.ttf", 10);

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

# Set the line width to 3 pixels
$layer->setLineWidth(3);

# Add the three data sets to the line layer, using circles, diamands and X shapes as
# symbols
$dataSetObj = $layer->addDataSet($data0, 0xff0000, "Quantum Computer");
$dataSetObj->setDataSymbol(CircleSymbol, 9);
$dataSetObj = $layer->addDataSet($data1, 0x00ff00, "Atom Synthesizer");
$dataSetObj->setDataSymbol(DiamondSymbol, 11);
$dataSetObj = $layer->addDataSet($data2, 0xff6600, "Proton Cannon");
$dataSetObj->setDataSymbol(Cross2Shape(), 11);

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