diff options
Diffstat (limited to 'config/dspam/pear/Image/Graph/Plot/Smoothed/Bezier.php')
| -rw-r--r-- | config/dspam/pear/Image/Graph/Plot/Smoothed/Bezier.php | 173 |
1 files changed, 0 insertions, 173 deletions
diff --git a/config/dspam/pear/Image/Graph/Plot/Smoothed/Bezier.php b/config/dspam/pear/Image/Graph/Plot/Smoothed/Bezier.php deleted file mode 100644 index bc21b4c8..00000000 --- a/config/dspam/pear/Image/Graph/Plot/Smoothed/Bezier.php +++ /dev/null @@ -1,173 +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'; - -/** - * Bezier smoothed plottype. - * - * The framework for calculating the Bezier smoothed curve from the dataset. - * Used in {@link Image_Graph_Plot_Smoothed_Line} and {@link - * Image_Graph_Plot_Smoothed_Area}. Smoothed charts are only supported with non- - * stacked types - * @link http://homepages.borland.com/efg2lab/Graphics/Jean- - * YvesQueinecBezierCurves.htm efg computer lab - description of bezier curves - * - * @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 - * @abstract - */ -class Image_Graph_Plot_Smoothed_Bezier extends Image_Graph_Plot -{ - - /** - * Image_Graph_Plot_Smoothed_Bezier [Constructor] - * - * Only 'normal' multitype supported - * - * @param Dataset $dataset The data set (value containter) to plot - * @param string $title The title of the plot (used for legends, {@link - * Image_Graph_Legend}) - */ - function Image_Graph_Plot_Smoothed_Bezier(& $dataset, $title = '') - { - parent::Image_Graph_Plot($dataset, 'normal', $title); - } - - /** - * Return the minimum Y point - * - * @return double The minumum Y point - * @access private - */ - function _minimumY() - { - return 1.05 * parent::_minimumY(); - } - - /** - * Return the maximum Y point - * - * @return double The maximum Y point - * @access private - */ - function _maximumY() - { - return 1.05 * parent::_maximumY(); - } - - /** - * Calculates all Bezier points, for the curve - * - * @param array $p1 The actual point to calculate control points for - * @param array $p0 The point "just before" $p1 - * @param array $p2 The point "just after" $p1 - * @param array $p3 The point "just after" $p2 - * @return array Array of Bezier points - * @access private - */ - function _getControlPoints($p1, $p0, $p2, $p3) - { - $p1 = $this->_pointXY($p1); - if ($p2) { - $p2 = $this->_pointXY($p2); - } - if (!$p0) { - $p0['X'] = $p1['X'] - abs($p2['X'] - $p1['X']); - $p0['Y'] = $p1['Y']; //-($p2['Y']-$p1['Y']); - } else { - $p0 = $this->_pointXY($p0); - } - if (!$p3) { - $p3['X'] = $p1['X'] + 2*abs($p1['X'] - $p0['X']); - $p3['Y'] = $p1['Y']; - } else { - $p3 = $this->_pointXY($p3); - } - - if (!$p2) { - $p2['X'] = $p1['X'] + abs($p1['X'] - $p0['X']); - $p2['Y'] = $p1['Y']; - } - - $pC1['X'] = Image_Graph_Tool::controlPoint($p0['X'], $p1['X'], $p2['X']); - $pC1['Y'] = Image_Graph_Tool::controlPoint($p0['Y'], $p1['Y'], $p2['Y']); - $pC2['X'] = Image_Graph_Tool::controlPoint($p3['X'], $p2['X'], $p1['X']); - $pC2['Y'] = Image_Graph_Tool::controlPoint($p3['Y'], $p2['Y'], $p1['Y']); - - return array( - 'X' => $p1['X'], - 'Y' => $p1['Y'], - 'P1X' => $pC1['X'], - 'P1Y' => $pC1['Y'], - 'P2X' => $pC2['X'], - 'P2Y' => $pC2['Y'] - ); - } - - /** - * Create legend sample data for the canvas. - * - * Common for all smoothed plots - * - * @access private - */ - function _addSamplePoints($x0, $y0, $x1, $y1) - { - $p = abs($x1 - $x0); - $cy = ($y0 + $y1) / 2; - $h = abs($y1 - $y0); - $dy = $h / 4; - $dw = abs($x1 - $x0) / $p; - for ($i = 0; $i < $p; $i++) { - $v = 2 * pi() * $i / $p; - $x = $x0 + $i * $dw; - $y = $cy + 2 * $v * sin($v); - $this->_canvas->addVertex(array('x' => $x, 'y' => $y)); - } - } - -} - -?>
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