<?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 Marker * @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: Average.php,v 1.6 2005/08/03 21:21:55 nosey Exp $ * @link http://pear.php.net/package/Image_Graph */ /** * Include file Image/Graph/Marker.php */ require_once 'Image/Graph/Marker.php'; /** * A marker displaying the 'distance' to the datasets average value. * * @category Images * @package Image_Graph * @subpackage Marker * @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_Marker_Average extends Image_Graph_Marker { /** * Draw the marker on the canvas * * @param int $x The X (horizontal) position (in pixels) of the marker on * the canvas * @param int $y The Y (vertical) position (in pixels) of the marker on the * canvas * @param array $values The values representing the data the marker 'points' * to * @access private */ function _drawMarker($x, $y, $values = false) { if ((isset($values['AVERAGE_Y'])) && (is_a($this->_parent, 'Image_Graph_Plot'))) { $point = $this->_pointXY( array( 'X' => $values['APX'], 'Y' => $values['AVERAGE_Y'] ) ); $this->_getLineStyle(); $this->_canvas->line(array('x0' => $x, 'y0' => $y, 'x1' => $point['X'], 'y1' => $point['Y'])); $this->_getLineStyle(); $this->_canvas->line( array( 'x0' => $point['X'] - 2, 'y0' => $point['Y'], 'x1' => $point['X'] + 2, 'y1' => $point['Y'] ) ); } parent::_drawMarker($x, $y, $values); } } ?>