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Diffstat (limited to 'config/archive/dspam/pear/Image/Graph/Dataset/VectorFunction.php')
| -rw-r--r-- | config/archive/dspam/pear/Image/Graph/Dataset/VectorFunction.php | 185 |
1 files changed, 0 insertions, 185 deletions
diff --git a/config/archive/dspam/pear/Image/Graph/Dataset/VectorFunction.php b/config/archive/dspam/pear/Image/Graph/Dataset/VectorFunction.php deleted file mode 100644 index 4250bbc0..00000000 --- a/config/archive/dspam/pear/Image/Graph/Dataset/VectorFunction.php +++ /dev/null @@ -1,185 +0,0 @@ -<?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 Dataset - * @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: $Id$ - * @link http://pear.php.net/package/Image_Graph - */ - -/** - * Include file Image/Graph/Dataset.php - */ -require_once 'Image/Graph/Dataset.php'; - -/** - * Vector Function data set. - * - * Points are generated by calling 2 external functions, fx. x = sin(t) and y = - * cos(t) - * - * @category Images - * @package Image_Graph - * @subpackage Dataset - * @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_Dataset_VectorFunction extends Image_Graph_Dataset -{ - - /** - * The name of the X function - * @var string - * @access private - */ - var $_functionX; - - /** - * The name of the Y function - * @var string - * @access private - */ - var $_functionY; - - /** - * The minimum of the vector function variable - * @var double - * @access private - */ - var $_minimumT; - - /** - * The maximum of the vector function variable - * @var double - * @access private - */ - var $_maximumT; - - /** - * Image_Graph_VectorFunctionDataset [Constructor] - * - * @param double $minimumT The minimum value of the vector function variable - * @param double $maximumT The maximum value of the vector function variable - * @param string $functionX The name of the X function, if must be a single - * parameter function like fx sin(x) or cos(x) - * @param string $functionY The name of the Y function, if must be a single - * parameter function like fx sin(x) or cos(x) - * @param int $points The number of points to create - */ - function Image_Graph_Dataset_VectorFunction($minimumT, $maximumT, $functionX, $functionY, $points) - { - parent::Image_Graph_Dataset(); - $this->_minimumT = $minimumT; - $this->_maximumT = $maximumT; - $this->_functionX = $functionX; - $this->_functionY = $functionY; - $this->_count = $points; - $this->_calculateMaxima(); - } - - /** - * Add a point to the dataset - * - * @param int $x The X value to add - * @param int $y The Y value to add, can be omited - * @param var $ID The ID of the point - */ - function addPoint($x, $y = false, $ID = false) - { - } - - /** - * Gets a X point from the dataset - * - * @param var $x The variable to apply the X function to - * @return var The X function applied to the X value - * @access private - */ - function _getPointX($x) - { - $functionX = $this->_functionX; - return $functionX ($x); - } - - /** - * Gets a Y point from the dataset - * - * @param var $x The variable to apply the Y function to - * @return var The Y function applied to the X value - * @access private - */ - function _getPointY($x) - { - $functionY = $this->_functionY; - return $functionY ($x); - } - - /** - * Reset the intertal dataset pointer - * - * @return var The first T value - * @access private - */ - function _reset() - { - $this->_posX = $this->_minimumT; - return $this->_posX; - } - - /** - * The interval between 2 adjacent T values - * - * @return var The interval - * @access private - */ - function _stepX() - { - return ($this->_maximumT - $this->_minimumT) / $this->count(); - } - - /** - * Calculates the X and Y extrema of the functions - * - * @access private - */ - function _calculateMaxima() - { - $t = $this->_minimumT; - while ($t <= $this->_maximumT) { - $x = $this->_getPointX($t); - $y = $this->_getPointY($t); - $this->_minimumX = min($x, $this->_minimumX); - $this->_maximumX = max($x, $this->_maximumX); - $this->_minimumY = min($y, $this->_minimumY); - $this->_maximumY = max($y, $this->_maximumY); - $t += $this->_stepX(); - } - } - -} - -?>
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