diff options
Diffstat (limited to 'config/archive/dspam/pear/Image/Graph/Plot/Fit/Line.php')
-rw-r--r-- | config/archive/dspam/pear/Image/Graph/Plot/Fit/Line.php | 118 |
1 files changed, 0 insertions, 118 deletions
diff --git a/config/archive/dspam/pear/Image/Graph/Plot/Fit/Line.php b/config/archive/dspam/pear/Image/Graph/Plot/Fit/Line.php deleted file mode 100644 index 07f3b9cc..00000000 --- a/config/archive/dspam/pear/Image/Graph/Plot/Fit/Line.php +++ /dev/null @@ -1,118 +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 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: $Id$ - * @link http://pear.php.net/package/Image_Graph - */ - -/** - * Include file Image/Graph/Plot.php - */ -require_once 'Image/Graph/Plot.php'; - -/** - * Include file Image/Graph/Tool.php - */ -require_once 'Image/Graph/Tool.php'; - -/** - * Fit the graph (to a line using linear regression). - * - * @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_Fit_Line 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) - { - $y = ($y0 + $y1) / 2; - $dy = abs($y1 - $y0) / 6; - $this->_canvas->addVertex(array('x' => $x0, 'y' => $y + $dy)); - $this->_canvas->addVertex(array('x' => $x1, 'y' => $y - $dy)); - $this->_canvas->polygon(array('connect' => false)); - } - - /** - * 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); - $keys = array_keys($this->_dataset); - foreach ($keys as $key) { - $dataset =& $this->_dataset[$key]; - $dataset->_reset(); - $data = array(); - while ($point = $dataset->_next()) { - $data[] = array( - 'X' => $this->_pointX($point), - 'Y' => $this->_pointY($point) - ); - } - - $regression = Image_Graph_Tool::calculateLinearRegression($data); - $this->_getLineStyle($key); - $this->_canvas->line( - array( - 'x0' => $this->_left, - 'y0' => $this->_left * $regression['slope'] + $regression['intersection'], - 'x1' => $this->_right, - 'y1' => $this->_right * $regression['slope'] + $regression['intersection'] - ) - ); - } - $this->_clip(false); - $this->_canvas->endGroup(); - - return true; - } -} - -?> |