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

# The data for the chart
$data = array(50, 55, 47, 34, 42, 49, 63, 62, 73, 59, 56, 50, 64, 60, 67, 67, 58, 59,
    73, 77, 84, 82, 80, 84, 89);

# The labels for the chart. Note the "-" means a minor tick.
$labels = array("0\nJun 4", "1", "2", "3", "4", "5", "6", "7", "8", "9", "10", "11",
    "12", "13", "14", "15", "16", "17", "18", "19", "20", "21", "22", "23",
    "0\nJun 5");

# Create a XYChart object of size 400 x 270 pixels
$c = new XYChart(400, 270);

# Set the plotarea at (80, 25) and of size 300 x 200 pixels. Use alternate color
# background (0xeeeeee) and (0xffffff). Set border and grid colors to grey
# (0xc0c0c0).
$c->setPlotArea(50, 25, 300, 200, 0xeeeeee, 0xffffff, 0xc0c0c0, 0xc0c0c0, 0xc0c0c0);

# Add a title to the chart using 14 pts Times Bold Italic font
$c->addTitle("Server Monitor", "timesbi.ttf", 14);

# Add a title to the y axis
$c->yAxis->setTitle("Server Load (MBytes)");

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

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

# Display 1 out of 3 labels on the x-axis. Show minor ticks for remaining labels.
$c->xAxis->setLabelStep(3, 1);

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

# Add a horizontal red (0x800080) mark line at y = 80
$yMark = $c->yAxis->addMark(80, 0xff0000, "Critical Threshold Set Point");

# Set the mark line width to 2 pixels
$yMark->setLineWidth(2);

# Put the mark label at the top center of the mark line
$yMark->setAlignment(TopCenter);

# Add an orange (0xffcc66) zone from x = 18 to x = 20
$c->xAxis->addZone(18, 20, 0xffcc66);

# Add a vertical brown (0x995500) mark line at x = 18
$xMark1 = $c->xAxis->addMark(18, 0x995500, "Backup Start");

# Set the mark line width to 2 pixels
$xMark1->setLineWidth(2);

# Put the mark label at the left of the mark line
$xMark1->setAlignment(Left);

# Rotate the mark label by 90 degrees so it draws vertically
$xMark1->setFontAngle(90);

# Add a vertical brown (0x995500) mark line at x = 20
$xMark2 = $c->xAxis->addMark(20, 0x995500, "Backup End");

# Set the mark line width to 2 pixels
$xMark2->setLineWidth(2);

# Put the mark label at the right of the mark line
$xMark2->setAlignment(Right);

# Rotate the mark label by 90 degrees so it draws vertically
$xMark2->setFontAngle(90);

# Add a green (0x00cc00) line layer with line width of 2 pixels
$lineLayerObj = $c->addLineLayer($data, 0x00cc00);
$lineLayerObj->setLineWidth(2);

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