diff options
Diffstat (limited to 'config/dspam/pear/Image/Graph/Grid/Polar.php')
| -rw-r--r-- | config/dspam/pear/Image/Graph/Grid/Polar.php | 111 |
1 files changed, 111 insertions, 0 deletions
diff --git a/config/dspam/pear/Image/Graph/Grid/Polar.php b/config/dspam/pear/Image/Graph/Grid/Polar.php new file mode 100644 index 00000000..03b1b916 --- /dev/null +++ b/config/dspam/pear/Image/Graph/Grid/Polar.php @@ -0,0 +1,111 @@ +<?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 + * @since File available since Release 0.3.0dev2 + */ + +/** + * 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 + * @since Class available since Release 0.3.0dev2 + */ +class Image_Graph_Grid_Polar extends Image_Graph_Grid +{ + + /** + * GridLines [Constructor] + */ + function Image_Graph_Grid_Polar() + { + 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; + + $p0 = array ('X' => '#min#', 'Y' => '#min#'); + if ($this->_primaryAxis->_type == IMAGE_GRAPH_AXIS_Y) { + $p1 = array ('X' => '#min#', 'Y' => '#max#'); + $r0 = abs($this->_pointY($p1) - $this->_pointY($p0)); + } else { + $p1 = array ('X' => '#max#', 'Y' => '#min#'); + $r0 = abs($this->_pointX($p1) - $this->_pointX($p0)); + } + + $cx = $this->_pointX($p0); + $cy = $this->_pointY($p0); + + $span = $this->_primaryAxis->_axisSpan; + + while (($value = $this->_primaryAxis->_getNextLabel($value)) !== false) { + $r = $r0 * ($value - $this->_primaryAxis->_getMinimum()) / $span; + + $this->_getLineStyle(); + $this->_canvas->ellipse(array('x' => $cx, 'y' => $cy, 'rx' => $r, 'ry' => $r)); + } + + $this->_canvas->endGroup(); + + return true; + } + +} +?>
\ No newline at end of file |