Source Code for Sample - Primary & Secondary Axis
Primary & Secondary Axis
Demonstrate secondary y-axis usage,
version 1.4, 03-Aug-2005 21:21
<?php
/**
* Usage example for Image_Graph.
*
* Main purpose:
* Demonstrate secondary y-axis usage
*
* Other:
* None specific
*
* $Id: secondary_axis.php,v 1.4 2005/08/03 21:21:53 nosey Exp $
*
* @package Image_Graph
* @author Jesper Veggerby <pear.nosey@veggerby.dk>
*/
require_once 'Image/Graph.php';
require_once 'Image/Canvas.php';
$Canvas =& Image_Canvas::factory('png', array('width' => 400, 'height' => 300, 'antialias' => 'native'));
// create the graph
$Graph =& Image_Graph::factory('graph', $Canvas);
// add a TrueType font
$Font =& $Graph->addNew('font', 'Verdana');
// set the font size to 11 pixels
$Font->setSize(8);
$Graph->setFont($Font);
// create the plotarea layout
$Graph->add(
Image_Graph::vertical(
Image_Graph::factory('title', array('Primary & Secondary Axis', 11)),
Image_Graph::vertical(
$Plotarea = Image_Graph::factory('plotarea'),
$Legend = Image_Graph::factory('legend'),
90
),
5
)
);
// make the legend use the plotarea (or implicitly it's plots)
$Legend->setPlotarea($Plotarea);
// create a grid and assign it to the secondary Y axis
$GridY2 =& $Plotarea->addNew('bar_grid', IMAGE_GRAPH_AXIS_Y_SECONDARY);
$GridY2->setFillStyle(
Image_Graph::factory(
'gradient',
array(IMAGE_GRAPH_GRAD_VERTICAL, 'white', 'lightgrey')
)
);
// create a line plot using a random dataset
$Dataset1 =& Image_Graph::factory('random', array(8, 10, 100, true));
$Plot1 =& $Plotarea->addNew('line', array(&$Dataset1));
$Plot1->setLineColor('red');
// create an area plot using a random dataset
$Dataset2 =& Image_Graph::factory('random', array(8, 1, 10, true));
$Plot2 =& $Plotarea->addNew(
'Image_Graph_Plot_Area',
$Dataset2,
IMAGE_GRAPH_AXIS_Y_SECONDARY
);
$Plot2->setLineColor('gray');
$Plot2->setFillColor('blue@0.2');
// set the titles for the plots
$Plot1->setTitle('Primary Axis');
$Plot2->setTitle('Secondary Axis');
$AxisX =& $Plotarea->getAxis(IMAGE_GRAPH_AXIS_X);
$AxisX->setTitle('Oranges');
$AxisY =& $Plotarea->getAxis(IMAGE_GRAPH_AXIS_Y);
$AxisY->setTitle('Apples', 'vertical');
$AxisYsecondary =& $Plotarea->getAxis(IMAGE_GRAPH_AXIS_Y_SECONDARY);
$AxisYsecondary->setTitle('Pears', 'vertical2');
// output the Graph
$Graph->done();
?>