1<?php
2
3/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */
4
5/**
6 * 3d Library
7 *
8 * PHP versions 5
9 *
10 * LICENSE:
11 * This library is free software; you can redistribute it and/or
12 * modify it under the terms of the GNU Lesser General Public
13 * License as published by the Free Software Foundation; either
14 * version 2.1 of the License, or (at your option) any later version.
15 *
16 * This library is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
19 * Lesser General Public License for more details.
20 *
21 * You should have received a copy of the GNU Lesser General Public
22 * License along with this library; if not, write to the Free Software
23 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
24 *
25 * @category  Image
26 * @package   Image_3D
27 * @author    Kore Nordmann <3d@kore-nordmann.de>
28 * @copyright 1997-2005 Kore Nordmann
29 * @license   http://www.gnu.org/licenses/lgpl.txt lgpl 2.1
30 * @version   CVS: $Id$
31 * @link      http://pear.php.net/package/PackageName
32 * @since     File available since Release 0.1.0
33 */
34
35// {{{ Image_3D_Renderer_Isometric
36
37/**
38 * Image_3D_Renderer_Isometric
39 *
40 * @category  Image
41 * @package   Image_3D
42 * @author    Kore Nordmann <3d@kore-nordmann.de>
43 * @copyright 1997-2005 Kore Nordmann
44 * @license   http://www.gnu.org/licenses/lgpl.txt lgpl 2.1
45 * @version   Release: @package_version@
46 * @link      http://pear.php.net/package/PackageName
47 * @since     Class available since Release 0.1.0
48 */
49class Image_3D_Renderer_Isometric extends Image_3D_Renderer
50{
51
52    // {{{ _calculateScreenCoordiantes()
53
54    /**
55     * Caclulate Screen Coordinates
56     *
57     * Calculate isometric screen coordinates for a point
58     *
59     * @param Image_3D_Point $point Point to process
60     *
61     * @return  void
62     */
63    protected function _calculateScreenCoordiantes(Image_3D_Point $point) {
64        $point->setScreenCoordinates($point->getX() - ($point->getZ() * .35) + $this->_size[0],
65                                       $point->getY() + ($point->getZ() * .35) + $this->_size[1]);
66    }
67
68    // }}}
69    // {{{ _sortPolygones()
70
71    /**
72     * Sort polygones
73     *
74     * Sort the polygones depending on their medium depth
75     *
76     * @return  void
77     */
78    protected function _sortPolygones()
79    {
80        $polygoneDepth = array();
81
82        foreach ($this->_polygones as $polygon) {
83            $polygoneDepth[] = $polygon->getMidZ();
84        }
85
86        array_multisort($polygoneDepth, SORT_DESC, SORT_NUMERIC, $this->_polygones);
87    }
88
89    // }}}
90}
91
92// }}}
93