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

# Data for the chart
$data0 = array(100, 125, 245, 147, 67, 96, 160, 145, 97, 167, 220, 125);
$data1 = array(85, 156, 179, 211, 123, 225, 127, 99, 111, 260, 175, 156);
$data2 = array(97, 87, 56, 267, 157, 157, 67, 156, 77, 87, 197, 87);
$labels = array("Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sept",
    "Oct", "Nov", "Dec");

# Create a XYChart object of size 560 x 280 pixels.
$c = new XYChart(560, 280);

# Add a title to the chart using 14 pts Arial Bold Italic font
$c->addTitle("     Average Weekly Network Load", "arialbi.ttf", 14);

# Set the plotarea at (50, 50) and of 500 x 200 pixels in size. Use alternating light
# grey (f8f8f8) / white (ffffff) background. Set border to transparent and use grey
# (CCCCCC) dotted lines as horizontal and vertical grid lines
$c->setPlotArea(50, 50, 500, 200, 0xffffff, 0xf8f8f8, Transparent, $c->dashLineColor(
    0xcccccc, DotLine), $c->dashLineColor(0xcccccc, DotLine));

# Add a legend box at (50, 22) using horizontal layout. Use 10 pt Arial Bold Italic
# font, with transparent background
$legendObj = $c->addLegend(50, 22, false, "arialbi.ttf", 10);
$legendObj->setBackground(Transparent);

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

# Draw the ticks between label positions (instead of at label positions)
$c->xAxis->setTickOffset(0.5);

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

# Set axis line width to 2 pixels
$c->xAxis->setWidth(2);
$c->yAxis->setWidth(2);

# Add a multi-bar layer with 3 data sets
$layer = $c->addBarLayer2(Side);
$layer->addDataSet($data0, 0xff0000, "Server #1");
$layer->addDataSet($data1, 0x00ff00, "Server #2");
$layer->addDataSet($data2, 0x0000ff, "Server #3");

# Set bar shape to circular (cylinder)
$layer->setBarShape(CircleShape);

# Configure the bars within a group to touch each others (no gap)
$layer->setBarGap(0.2, TouchBar);

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