[Sommaire] [Imprimer]

   1  <?php
   2  
   3  /* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */
   4  
   5  /**
   6   * Image_Graph - PEAR PHP OO Graph Rendering Utility.
   7   *
   8   * PHP versions 4 and 5
   9   *
  10   * LICENSE: This library is free software; you can redistribute it and/or modify
  11   * it under the terms of the GNU Lesser General Public License as published by
  12   * the Free Software Foundation; either version 2.1 of the License, or (at your
  13   * option) any later version. This library is distributed in the hope that it
  14   * will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty
  15   * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser
  16   * General Public License for more details. You should have received a copy of
  17   * the GNU Lesser General Public License along with this library; if not, write
  18   * to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  19   * 02111-1307 USA
  20   *
  21   * @category   Images
  22   * @package    Image_Graph
  23   * @subpackage Marker
  24   * @author     Jesper Veggerby <pear.nosey@veggerby.dk>
  25   * @copyright  Copyright (C) 2003, 2004 Jesper Veggerby Hansen
  26   * @license    http://www.gnu.org/copyleft/lesser.html  LGPL License 2.1
  27   * @version    CVS: $Id: Star.php,v 1.2 2005/08/03 21:21:54 nosey Exp $
  28   * @link       http://pear.php.net/package/Image_Graph
  29   */
  30  
  31  /**
  32   * Include file Image/Graph/Marker.php
  33   */
  34  require_once  'Image/Graph/Marker.php';
  35  
  36  /**
  37   * Data marker as a triangle.
  38   *
  39   * @category   Images
  40   * @package    Image_Graph
  41   * @subpackage Marker
  42   * @author     Jesper Veggerby <pear.nosey@veggerby.dk>
  43   * @copyright  Copyright (C) 2003, 2004 Jesper Veggerby Hansen
  44   * @license    http://www.gnu.org/copyleft/lesser.html  LGPL License 2.1
  45   * @version    Release: 0.7.2
  46   * @link       http://pear.php.net/package/Image_Graph
  47   */
  48  class Image_Graph_Marker_Star extends Image_Graph_Marker
  49  {
  50  
  51      /**
  52       * Draw the marker on the canvas
  53       *
  54       * @param int $x The X (horizontal) position (in pixels) of the marker on
  55       *   the canvas
  56       * @param int $y The Y (vertical) position (in pixels) of the marker on the
  57       *   canvas
  58       * @param array $values The values representing the data the marker 'points'
  59       *   to
  60       * @access private
  61       */
  62      function _drawMarker($x, $y, $values = false)
  63      {
  64          $this->_getFillStyle();
  65          $this->_getLineStyle();
  66          
  67          $d = $this->_size / 5;
  68          $x = round($x);
  69          $y = round($y);
  70          
  71          $this->_canvas->addVertex(array('x' => $x, 'y' => $y - $this->_size));
  72          $this->_canvas->addVertex(array('x' => $x + round($d), 'y' => $y - round($d)));
  73          $this->_canvas->addVertex(array('x' => $x + $this->_size, 'y' => $y - round($d)));
  74          $this->_canvas->addVertex(array('x' => $x + round(2 * $d), 'y' => $y + round($d)));
  75          $this->_canvas->addVertex(array('x' => $x + round(3 * $d), 'y' => $y + $this->_size));
  76          $this->_canvas->addVertex(array('x' => $x, 'y' => $y + round(3 * $d)));
  77          $this->_canvas->addVertex(array('x' => $x - round(3 * $d), 'y' => $y + $this->_size));
  78          $this->_canvas->addVertex(array('x' => $x - round(2 * $d), 'y' => $y + round($d)));
  79          $this->_canvas->addVertex(array('x' => $x - $this->_size, 'y' => $y - round($d)));
  80          $this->_canvas->addVertex(array('x' => $x - round($d), 'y' => $y - round($d)));
  81          $this->_canvas->polygon(array('connect' => true));
  82          
  83          parent::_drawMarker($x, $y, $values);
  84      }
  85  
  86  }
  87  
  88  ?>