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

# The data for the chart
$data = array(40, 45, 37, 24, 32, 39, 53, 52, 63, 49, 46, 40, 54, 50, 57, 57, 48, 49,
    63, 67, 74, 72, 70, 89, 74);
$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, 60) and of size 300 x 200 pixels. Turn off the grid lines
# by setting their colors to Transparent.
$plotAreaObj = $c->setPlotArea(80, 28, 300, 200);
$plotAreaObj->setGridColor(Transparent);

# Add a title to the y axis
$textbox = $c->yAxis->setTitle("Temperature");

# Set the y axis title upright (font angle = 0)
$textbox->setFontAngle(0);

# Put the y axis title on top of the axis
$textbox->setAlignment(TopLeft2);

# Add green (0x99ff99), yellow (0xffff99) and red (0xff9999) zones to the y axis to
# represent the ranges 0 - 50, 50 - 80, and 80 - max.
$c->yAxis->addZone(0, 50, 0x99ff99);
$c->yAxis->addZone(50, 80, 0xffff99);
$c->yAxis->addZone(80, 9999, 0xff9999);

# Add a purple (0x800080) mark at y = 70 using a line width of 2.
$markObj = $c->yAxis->addMark(70, 0x800080, "Alert = 70");
$markObj->setLineWidth(2);

# Add a green (0x008000) mark at y = 40 using a line width of 2.
$markObj = $c->yAxis->addMark(40, 0x008000, "Watch = 40");
$markObj->setLineWidth(2);

# Add a legend box at (165, 0) (top right of the chart) using 8 pts Arial font. and
# horizontal layout.
$legend = $c->addLegend(165, 0, false, "arialbd.ttf", 8);

# Disable the legend box boundary by setting the colors to Transparent
$legend->setBackground(Transparent, Transparent);

# Add 3 custom entries to the legend box to represent the 3 zones
$legend->addKey("Normal", 0x80ff80);
$legend->addKey("Warning", 0xffff80);
$legend->addKey("Critical", 0xff8080);

# 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);

# Add a 3D bar layer with the given data
$layer = $c->addBarLayer($data, 0xbbbbff);

# Set the bar gap to 0 so that the bars are packed tightly
$layer->setBarGap(0);

# Set the border color of the bars same as the fill color, with 1 pixel 3D border
# effect.
$layer->setBorderColor(SameAsMainColor, 1);

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