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

#
#    We use a random number generator to simulate the data from 9:30am to 4:30pm with
#    one data point every 4 minutes. The total number of points during that period is
#    106.  (7 hours x 15 points/hour + 1)
#
$noOfPoints = 106;

# Assume we have not reached the end of the day yet, and only 85 points are
# available. Create a random table object of 1 col x 85 rows, using 9 as seed.
$rantable = new RanTable(9, 1, 85);

# Set the 1st column to start with 1800 and with random delta from -5 to 5.
$rantable->setCol(0, 1800, -5, 5);

# Get the data as the 1st column of the random table
$data = $rantable->getCol(0);

# The x-axis labels for the chart
$labels = array("-", "10am", "-", " ", "-", "12am", "-", " ", "-", "2pm", "-", " ",
    "-", "4pm", "-");

#
#    Now we obtain the data into arrays, we can start to draw the chart using
#    ChartDirector
#

# Create a XYChart object of size 180 x 180 pixels with a blue background (0x9c9cce)
$c = new XYChart(180, 180, 0x9c9cce);

# Add titles to the top and bottom of the chart using 7.5pt Arial font. The text is
# white 0xffffff on a deep blue 0x31319C background.
$c->addTitle2(Top, "STAR TECH INDEX  2003-01-28", "arial.ttf", 7.5, 0xffffff,
    0x31319c);
$c->addTitle2(Bottom, "LATEST  STI:1809.41 (+14.51)", "arial.ttf", 7.5, 0xffffff,
    0x31319c);

# Set the plotarea at (31, 21) and of size 145 x 124 pixels, with a pale yellow
# (0xffffc8) background.
$c->setPlotArea(31, 21, 145, 124, 0xffffc8);

# Add custom text at (176, 21) (top right corner of plotarea) using 11pt Times Bold
# Italic font/red (0xc09090) color
$textBoxObj = $c->addText(176, 21, "Chart Demo", "timesbi.ttf", 11, 0xc09090);
$textBoxObj->setAlignment(TopRight);

# Use 7.5 pts Arial as the y axis label font
$c->yAxis->setLabelStyle("", 7.5);

# Set the labels on the x axis by spreading the labels evenly between the first point
# (index = 0) and the last point (index = noOfPoints - 1)
$c->xAxis->setLinearScale(0, $noOfPoints - 1, $labels);

# Use 7.5 pts Arial as the x axis label font
$c->xAxis->setLabelStyle("", 7.5);

# Add a deep blue (0x000080) line layer to the chart
$c->addLineLayer($data, 0x000080);

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