This repository has been archived on 2024-04-08.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/Band.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

205 lines
7.4 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: Band.php,v 1.12 2005/11/27 22:21:16 nosey Exp $
* @link http://pear.php.net/package/Image_Graph
* @since File available since Release 0.3.0dev2
*/
/**
* Include file Image/Graph/Plot.php
*/
require_once 'Image/Graph/Plot.php';
/**
* "Band" (area chart with min AND max) 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
* @since Class available since Release 0.3.0dev2
*/
class Image_Graph_Plot_Band 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)
{
$h = abs($y1 - $y0) / 6;
$w = round(abs($x1 - $x0) / 5);
$y = ($y0 + $y1) / 2;
$this->_canvas->addVertex(array('x' => $x0, 'y' => $y - $h * 3));
$this->_canvas->addVertex(array('x' => $x0 + $w, 'y' => $y - 4 * $h));
$this->_canvas->addVertex(array('x' => $x0 + 2 * $w, 'y' => $y - $h * 2));
$this->_canvas->addVertex(array('x' => $x0 + 3 * $w, 'y' => $y - $h * 4));
$this->_canvas->addVertex(array('x' => $x0 + 4 * $w, 'y' => $y - $h * 3));
$this->_canvas->addVertex(array('x' => $x1, 'y' => $y - $h * 2));
$this->_canvas->addVertex(array('x' => $x1, 'y' => $y + $h * 3));
$this->_canvas->addVertex(array('x' => $x0 + 4 * $w, 'y' => $y + $h));
$this->_canvas->addVertex(array('x' => $x0 + 3 * $w, 'y' => $y + 2 * $h));
$this->_canvas->addVertex(array('x' => $x0 + 2 * $w, 'y' => $y + 1 * $h));
$this->_canvas->addVertex(array('x' => $x0 + 1 * $w, 'y' => $y));
$this->_canvas->addVertex(array('x' => $x0, 'y' => $y + $h));
$this->_getLineStyle();
$this->_getFillStyle();
$this->_canvas->polygon(array('connect' => true));
}
/**
* Output the plot
*
* @return bool Was the output 'good' (true) or 'bad' (false).
* @access private
*/
function _done()
{
if (parent::_done() === false) {
return false;
}
if (!is_array($this->_dataset)) {
return false;
}
$current = array();
$this->_canvas->startGroup(get_class($this) . '_' . $this->_title);
$this->_clip(true);
$keys = array_keys($this->_dataset);
foreach ($keys as $key) {
$dataset =& $this->_dataset[$key];
$dataset->_reset();
$upperBand = array();
$lowerBand = array();
while ($data = $dataset->_next()) {
if ($this->_parent->_horizontal) {
$point['X'] = $data['X'];
$point['Y'] = $data['Y']['high'];
$y = $this->_pointY($point);
$x_high = $this->_pointX($point);
$point['Y'] = $data['Y']['low'];
$x_low = $this->_pointX($point);
$data = array('X' => $x_high, 'Y' => $y);
if (isset($point['data'])) {
$data['data'] = $point['data'];
} else {
$data['data'] = array();
}
$upperBand[] = $data;
$data = array('X' => $x_low, 'Y' => $y);
if (isset($point['data'])) {
$data['data'] = $point['data'];
} else {
$data['data'] = array();
}
$lowerBand[] = $data;
}
else {
$point['X'] = $data['X'];
$y = $data['Y'];
$point['Y'] = $data['Y']['high'];
$x = $this->_pointX($point);
$y_high = $this->_pointY($point);
$point['Y'] = $data['Y']['low'];
$y_low = $this->_pointY($point);
$data = array('X' => $x, 'Y' => $y_high);
if (isset($point['data'])) {
$data['data'] = $point['data'];
} else {
$data['data'] = array();
}
$upperBand[] = $data;
$data = array('X' => $x, 'Y' => $y_low);
if (isset($point['data'])) {
$data['data'] = $point['data'];
} else {
$data['data'] = array();
}
$lowerBand[] = $data;
}
}
$lowerBand = array_reverse($lowerBand);
foreach ($lowerBand as $point) {
$this->_canvas->addVertex(
$this->_mergeData(
$point['data'],
array('x' => $point['X'], 'y' => $point['Y'])
)
);
}
foreach ($upperBand as $point) {
$this->_canvas->addVertex(
$this->_mergeData(
$point['data'],
array('x' => $point['X'], 'y' => $point['Y'])
)
);
}
unset($upperBand);
unset($lowerBand);
$this->_getLineStyle($key);
$this->_getFillStyle($key);
$this->_canvas->polygon(array('connect' => true, 'map_vertices' => true));
}
unset($keys);
$this->_drawMarker();
$this->_clip(false);
$this->_canvas->endGroup();
return true;
}
}
?>