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khosb/includes/pear/Image/docs/examples/plot_bar_stacked100pct.php

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<?php
/**
* Usage example for Image_Graph.
*
* Main purpose:
* Show stacked bar chart 100%
*
* Other:
* None specific
*
* $Id: plot_bar_stacked100pct.php,v 1.3 2005/08/03 21:21:53 nosey Exp $
*
* @package Image_Graph
* @author Jesper Veggerby <pear.nosey@veggerby.dk>
*/
include_once('Image/Graph.php');
include_once('Image/Graph/Marker/Value.php');
class myValueMarker extends Image_Graph_Marker_Value {
function getDisplayValue($Values) {
return "\{$Values[Y]}";
}
}
// 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('Stacked Bar 100% Chart Sample', 12)),
Image_Graph::vertical(
$Plotarea = Image_Graph::factory('plotarea'),
$Legend = Image_Graph::factory('legend'),
90
),
5
)
);
$Legend->setPlotarea($Plotarea);
for ($j = 0; $j<4; $j++) {
$DX =& Image_Graph::factory('dataset');
$Datasets[$j] =& $DX;
for ($i = 0; $i<10; $i++)
$DX->addPoint($i, rand(2, 15), $j);
}
// create the 1st plot as smoothed area chart using the 1st dataset
$Plot =& $Plotarea->addNew('bar', array($Datasets, 'stacked100pct'));
// set a line color
$Plot->setLineColor('gray');
// create a fill array
$FillArray =& Image_Graph::factory('Image_Graph_Fill_Array');
$FillArray->addColor('blue@0.2');
$FillArray->addColor('yellow@0.2');
$FillArray->addColor('green@0.2');
$FillArray->addColor('red@0.2');
$FillArray->addColor('gray@0.2');
// set a standard fill style
$Plot->setFillStyle($FillArray);
// create a Y data value marker
$Marker =& $Plot->add(new myValueMarker(IMAGE_GRAPH_VALUE_Y));
// and use the marker on the 1st plot
$Plot->setMarker($Marker);
// output the Graph
$Graph->done();
?>