Source Code for Sample - Band Chart Sample
Band Chart Sample
Show band chart,
version 1.3, 03-Aug-2005 21:21
<?php
/**
* Usage example for Image_Graph.
*
* Main purpose:
* Show band chart
*
* Other:
* None specific
*
* $Id: plot_band.php,v 1.3 2005/08/03 21:21:53 nosey Exp $
*
* @package Image_Graph
* @author Jesper Veggerby <pear.nosey@veggerby.dk>
*/
require_once 'Image/Graph.php';
// create the graph
$Graph =& Image_Graph::factory('graph', array(400, 300));
// add a TrueType font
$Font =& $Graph->addNew('font', 'Verdana');
// set the font size to 11 pixels
$Font->setSize(8);
$Graph->setFont($Font);
$Graph->add(
Image_Graph::vertical(
Image_Graph::factory('title', array('Band Chart Sample', 12)),
Image_Graph::vertical(
$Plotarea = Image_Graph::factory('plotarea'),
$Legend = Image_Graph::factory('legend'),
90
),
5
)
);
$Legend->setPlotarea($Plotarea);
// create the dataset
$Dataset =& Image_Graph::factory('dataset');
for ($i = 0; $i < 40; $i++) {
$v1 = rand(5, 15);
$v2 = $v1 + rand(10, 20);
$Dataset->addPoint($i, array('low' => $v1, 'high' => $v2));
}
// create the 1st plot as smoothed area chart using the 1st dataset
$Plot =& $Plotarea->addNew('Image_Graph_Plot_Band', $Dataset);
// set a line color
$Plot->setLineColor('gray');
$Plot->setFillColor('blue@0.2');
$Axis =& $Plotarea->getAxis(IMAGE_GRAPH_AXIS_X);
$Axis->setLabelInterval(5);
// output the Graph
$Graph->done();
?>