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

# The data for the bar chart
$data0 = array(100, 125, 245, 147, 67);
$data1 = array(85, 156, 179, 211, 123);
$data2 = array(97, 87, 56, 267, 157);
$labels = array("Mon", "Tue", "Wed", "Thu", "Fri");

# Create a XYChart object of size 400 x 240 pixels
$c = new XYChart(400, 240);

# Add a title to the chart using 10 pt Arial font
$c->addTitle("         Average Weekday Network Load", "", 10);

# Set the plot area at (50, 25) and of size 320 x 180. Use two alternative background
# colors (0xffffc0 and 0xffffe0)
$c->setPlotArea(50, 25, 320, 180, 0xffffc0, 0xffffe0);

# Add a legend box at (55, 18) using horizontal layout. Use 8 pt Arial font, with
# transparent background
$legendObj = $c->addLegend(55, 18, false, "", 8);
$legendObj->setBackground(Transparent);

# Add a title to the y-axis
$c->yAxis->setTitle("Throughput (MBytes Per Hour)");

# Reserve 20 pixels at the top of the y-axis for the legend box
$c->yAxis->setTopMargin(20);

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

# Add a multi-bar layer with 3 data sets and 3 pixels 3D depth
$layer = $c->addBarLayer2(Side, 3);
$layer->addDataSet($data0, 0xff8080, "Server #1");
$layer->addDataSet($data1, 0x80ff80, "Server #2");
$layer->addDataSet($data2, 0x8080ff, "Server #3");

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