<?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 Grid * @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/Grid.php */ require_once 'Image/Graph/Grid.php'; /** * Display a line grid on the plotarea. * * {@link Image_Graph_Grid} * * @category Images * @package Image_Graph * @subpackage Grid * @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_Grid_Lines extends Image_Graph_Grid { /** * GridLines [Constructor] */ function Image_Graph_Grid_Lines() { parent::Image_Graph_Grid(); $this->_lineStyle = 'lightgrey'; } /** * Output the grid * * @return bool Was the output 'good' (true) or 'bad' (false). * @access private */ function _done() { if (parent::_done() === false) { return false; } if (!$this->_primaryAxis) { return false; } $this->_canvas->startGroup(get_class($this)); $value = false; $secondaryPoints = $this->_getSecondaryAxisPoints(); while (($value = $this->_primaryAxis->_getNextLabel($value)) !== false) { reset($secondaryPoints); list ($id, $previousSecondaryValue) = each($secondaryPoints); while (list ($id, $secondaryValue) = each($secondaryPoints)) { if ($this->_primaryAxis->_type == IMAGE_GRAPH_AXIS_Y) { $p1 = array ('X' => $secondaryValue, 'Y' => $value); $p2 = array ('X' => $previousSecondaryValue, 'Y' => $value); } else { $p1 = array ('X' => $value, 'Y' => $secondaryValue); $p2 = array ('X' => $value, 'Y' => $previousSecondaryValue); } $x1 = $this->_pointX($p1); $y1 = $this->_pointY($p1); $x2 = $this->_pointX($p2); $y2 = $this->_pointY($p2); $previousSecondaryValue = $secondaryValue; $this->_getLineStyle(); $this->_canvas->line(array('x0' => $x1, 'y0' => $y1, 'x1' => $x2, 'y1' => $y2)); } } $this->_canvas->endGroup(); return true; } } ?>