This repository has been archived on 2024-04-08. You can view files and clone it, but cannot push or open issues or pull requests.
khosb/includes/pear/Image/Graph/Plot/Step.php
anubis fae6352bf2 Update to PEAR 1.7.2, Image_Canvas 0.3.1, Image_Color 1.0.3, Image_Graph 0.7.2, XML_Parser 1.3.1.
Removed PHP_Compat, and references to it.
Removed ionCube/Zend/mmCache compatibility checks in test.php script.
Changed minimum PHP requirement to 5.0 in test.php script.
2009-01-04 19:22:54 -05:00

200 lines
7.1 KiB
PHP

<?php
/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */
/**
* Image_Graph - PEAR PHP OO Graph Rendering Utility.
*
* PHP versions 4 and 5
*
* LICENSE: This library is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation; either version 2.1 of the License, or (at your
* option) any later version. This library is distributed in the hope that it
* will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty
* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser
* General Public License for more details. You should have received a copy of
* the GNU Lesser General Public License along with this library; if not, write
* to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
* 02111-1307 USA
*
* @category Images
* @package Image_Graph
* @subpackage Plot
* @author Jesper Veggerby <pear.nosey@veggerby.dk>
* @copyright Copyright (C) 2003, 2004 Jesper Veggerby Hansen
* @license http://www.gnu.org/copyleft/lesser.html LGPL License 2.1
* @version CVS: $Id: Step.php,v 1.15 2005/11/27 22:21:16 nosey Exp $
* @link http://pear.php.net/package/Image_Graph
*/
/**
* Include file Image/Graph/Plot/Bar.php
*/
require_once 'Image/Graph/Plot/Bar.php';
/**
* Step chart.
*
* @category Images
* @package Image_Graph
* @subpackage Plot
* @author Jesper Veggerby <pear.nosey@veggerby.dk>
* @copyright Copyright (C) 2003, 2004 Jesper Veggerby Hansen
* @license http://www.gnu.org/copyleft/lesser.html LGPL License 2.1
* @version Release: @package_version@
* @link http://pear.php.net/package/Image_Graph
*/
class Image_Graph_Plot_Step extends Image_Graph_Plot
{
/**
* Perform the actual drawing on the legend.
*
* @param int $x0 The top-left x-coordinate
* @param int $y0 The top-left y-coordinate
* @param int $x1 The bottom-right x-coordinate
* @param int $y1 The bottom-right y-coordinate
* @access private
*/
function _drawLegendSample($x0, $y0, $x1, $y1)
{
$dx = abs($x1 - $x0) / 3;
$dy = abs($y1 - $y0) / 3;
$this->_canvas->addVertex(array('x' => $x0, 'y' => $y1));
$this->_canvas->addVertex(array('x' => $x0, 'y' => $y0 + $dy));
$this->_canvas->addVertex(array('x' => $x0 + $dx, 'y' => $y0 + $dy));
$this->_canvas->addVertex(array('x' => $x0 + $dx, 'y' => $y0));
$this->_canvas->addVertex(array('x' => $x0 + 2*$dx, 'y' => $y0));
$this->_canvas->addVertex(array('x' => $x0 + 2*$dx, 'y' => $y0 + 2*$dy));
$this->_canvas->addVertex(array('x' => $x1, 'y' => $y0 + 2*$dy));
$this->_canvas->addVertex(array('x' => $x1, 'y' => $y1));
$this->_canvas->polygon(array('connect' => true));
}
/**
* PlotType [Constructor]
*
* A 'normal' step chart is 'stacked'
*
* @param Dataset $dataset The data set (value containter) to plot
* @param string $multiType The type of the plot
* @param string $title The title of the plot (used for legends,
* {@link Image_Graph_Legend})
*/
function Image_Graph_Plot_Step(& $dataset, $multiType = 'stacked', $title = '')
{
$multiType = strtolower($multiType);
if (($multiType != 'stacked') && ($multiType != 'stacked100pct')) {
$multiType = 'stacked';
}
parent::Image_Graph_Plot($dataset, $multiType, $title);
}
/**
* Output the plot
*
* @return bool Was the output 'good' (true) or 'bad' (false).
* @access private
*/
function _done()
{
if (Image_Graph_Plot::_done() === false) {
return false;
}
$this->_canvas->startGroup(get_class($this) . '_' . $this->_title);
$this->_clip(true);
if ($this->_multiType == 'stacked100pct') {
$total = $this->_getTotals();
}
if ($this->_parent->_horizontal) {
$width = $this->height() / ($this->_maximumX() + 2) / 2;
}
else {
$width = $this->width() / ($this->_maximumX() + 2) / 2;
}
reset($this->_dataset);
$key = key($this->_dataset);
$dataset =& $this->_dataset[$key];
$first = $dataset->first();
$last = $dataset->last();
$point = array ('X' => $first['X'], 'Y' => '#min_pos#');
$firstY = $this->_pointY($point) + ($this->_parent->_horizontal ? $width : 0);
$base[] = $firstY;
$firstX = $this->_pointX($point) - ($this->_parent->_horizontal ? 0 : $width);
$base[] = $firstX;
$point = array ('X' => $last['X'], 'Y' => '#min_pos#');
$base[] = $this->_pointY($point) - ($this->_parent->_horizontal ? $width : 0);
$base[] = $this->_pointX($point) + ($this->_parent->_horizontal ? 0 : $width);
$first = ($this->_parent->_horizontal ? $firstY : $firstX);
$keys = array_keys($this->_dataset);
foreach ($keys as $key) {
$dataset =& $this->_dataset[$key];
$dataset->_reset();
$polygon = array_reverse($base);
unset ($base);
$last = $first;
while ($point = $dataset->_next()) {
$x = $point['X'];
$p = $point;
if (!isset($current[$x])) {
$current[$x] = 0;
}
if ($this->_multiType == 'stacked100pct') {
$p['Y'] = 100 * ($current[$x] + $point['Y']) / $total['TOTAL_Y'][$x];
} else {
$p['Y'] += $current[$x];
}
$current[$x] += $point['Y'];
$point = $p;
if ($this->_parent->_horizontal) {
$x0 = $this->_pointX($point);
$y0 = $last;
$x1 = $this->_pointX($point);
$last = $y1 = $this->_pointY($point) - $width;
}
else {
$x0 = $last;
$y0 = $this->_pointY($point);
$last = $x1 = $this->_pointX($point) + $width;
$y1 = $this->_pointY($point);
}
$polygon[] = $x0; $base[] = $y0;
$polygon[] = $y0; $base[] = $x0;
$polygon[] = $x1; $base[] = $y1;
$polygon[] = $y1; $base[] = $x1;
}
while (list(, $x) = each($polygon)) {
list(, $y) = each($polygon);
$this->_canvas->addVertex(array('x' => $x, 'y' => $y));
}
$this->_getFillStyle($key);
$this->_getLineStyle($key);
$this->_canvas->polygon(array('connect' => true));
}
unset($keys);
$this->_drawMarker();
$this->_clip(false);
$this->_canvas->endGroup();
return true;
}
}
?>