<?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: Dot.php,v 1.11 2005/11/27 22:21:16 nosey Exp $ * @link http://pear.php.net/package/Image_Graph */ /** * Include file Image/Graph/Plot.php */ require_once 'Image/Graph/Plot.php'; /** * Dot / scatter chart (only marker). * * This plot type only displays a {@link Image_Graph_Marker} for the datapoints. * The marker must explicitly be defined using {@link Image_Graph_Plot:: * setMarker()}. * * @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_Dot 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, $y1) { if (isset($this->_marker)) { $key = key($this->_dataset); $samplePoint = $this->_dataset[$key]->_nearby(); $this->_marker->_drawMarker(($x0 + $x1) / 2, ($y0 + $y1) / 2, $samplePoint); } } /** * 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); $this->_drawMarker(); $this->_clip(false); $this->_canvas->endGroup(); return true; } } ?>