source: OGRE/trunk/ogrenew/Docs/api/html/OgrePlaneBoundedVolume_8h-source.html @ 657

Revision 657, 11.8 KB checked in by mattausch, 18 years ago (diff)

added ogre dependencies and patched ogre sources
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10<h1>OgrePlaneBoundedVolume.h</h1><a href="OgrePlaneBoundedVolume_8h.html">Go to the documentation of this file.</a><div class="fragment"><pre>00001 <span class="comment">/*</span>
1100002 <span class="comment">-----------------------------------------------------------------------------</span>
1200003 <span class="comment">This source file is part of OGRE</span>
1300004 <span class="comment">(Object-oriented Graphics Rendering Engine)</span>
1400005 <span class="comment">For the latest info, see http://www.ogre3d.org/</span>
1500006 <span class="comment"></span>
1600007 <span class="comment">Copyright (c) 2000-2005 The OGRE Team</span>
1700008 <span class="comment">Also see acknowledgements in Readme.html</span>
1800009 <span class="comment"></span>
1900010 <span class="comment">This program is free software; you can redistribute it and/or modify it under</span>
2000011 <span class="comment">the terms of the GNU Lesser General Public License as published by the Free Software</span>
2100012 <span class="comment">Foundation; either version 2 of the License, or (at your option) any later</span>
2200013 <span class="comment">version.</span>
2300014 <span class="comment"></span>
2400015 <span class="comment">This program is distributed in the hope that it will be useful, but WITHOUT</span>
2500016 <span class="comment">ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS</span>
2600017 <span class="comment">FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.</span>
2700018 <span class="comment"></span>
2800019 <span class="comment">You should have received a copy of the GNU Lesser General Public License along with</span>
2900020 <span class="comment">this program; if not, write to the Free Software Foundation, Inc., 59 Temple</span>
3000021 <span class="comment">Place - Suite 330, Boston, MA 02111-1307, USA, or go to</span>
3100022 <span class="comment">http://www.gnu.org/copyleft/lesser.txt.</span>
3200023 <span class="comment">-----------------------------------------------------------------------------</span>
3300024 <span class="comment">*/</span>
3400025 <span class="preprocessor">#ifndef __PlaneBoundedVolume_H_</span>
3500026 <span class="preprocessor"></span><span class="preprocessor">#define __PlaneBoundedVolume_H_</span>
3600027 <span class="preprocessor"></span>
3700028 <span class="comment">// Precompiler options</span>
3800029 <span class="preprocessor">#include "<a class="code" href="OgrePrerequisites_8h.html">OgrePrerequisites.h</a>"</span>
3900030 <span class="preprocessor">#include "<a class="code" href="OgreAxisAlignedBox_8h.html">OgreAxisAlignedBox.h</a>"</span>
4000031 <span class="preprocessor">#include "<a class="code" href="OgreSphere_8h.html">OgreSphere.h</a>"</span>
4100032 <span class="preprocessor">#include "<a class="code" href="OgreMath_8h.html">OgreMath.h</a>"</span>
4200033 <span class="preprocessor">#include "<a class="code" href="OgrePlane_8h.html">OgrePlane.h</a>"</span>
4300034
4400035 <span class="keyword">namespace </span>Ogre {
4500036
46<a name="l00039"></a><a class="code" href="classOgre_1_1PlaneBoundedVolume.html">00039</a>     <span class="keyword">class </span><a class="code" href="OgrePlatform_8h.html#a16">_OgreExport</a> PlaneBoundedVolume
4700040     {
4800041     <span class="keyword">public</span>:
49<a name="l00042"></a><a class="code" href="classOgre_1_1PlaneBoundedVolume.html#Ogre_1_1PlaneBoundedVolumew0">00042</a>         <span class="keyword">typedef</span> std::vector&lt;Plane&gt; <a class="code" href="namespaceOgre.html#a410">PlaneList</a>;
50<a name="l00044"></a><a class="code" href="classOgre_1_1PlaneBoundedVolume.html#Ogre_1_1PlaneBoundedVolumeo0">00044</a>         <a class="code" href="namespaceOgre.html#a410">PlaneList</a> planes;
51<a name="l00045"></a><a class="code" href="classOgre_1_1PlaneBoundedVolume.html#Ogre_1_1PlaneBoundedVolumeo1">00045</a>         Plane::Side outside;
5200046
53<a name="l00047"></a><a class="code" href="classOgre_1_1PlaneBoundedVolume.html#Ogre_1_1PlaneBoundedVolumea0">00047</a>         PlaneBoundedVolume() :outside(<a class="code" href="classOgre_1_1Plane.html">Plane</a>::NEGATIVE_SIDE) {}
54<a name="l00049"></a><a class="code" href="classOgre_1_1PlaneBoundedVolume.html#Ogre_1_1PlaneBoundedVolumea1">00049</a>         PlaneBoundedVolume(Plane::Side theOutside)
5500050             : outside(theOutside) {}
5600051
57<a name="l00055"></a><a class="code" href="classOgre_1_1PlaneBoundedVolume.html#Ogre_1_1PlaneBoundedVolumea2">00055</a>         <span class="keyword">inline</span> <span class="keywordtype">bool</span> intersects(<span class="keyword">const</span> <a class="code" href="classOgre_1_1AxisAlignedBox.html">AxisAlignedBox</a>&amp; box)<span class="keyword"> const</span>
5800056 <span class="keyword">        </span>{
5900057             <span class="keywordflow">if</span> (box.<a class="code" href="classOgre_1_1AxisAlignedBox.html#Ogre_1_1AxisAlignedBoxa16">isNull</a>()) <span class="keywordflow">return</span> <span class="keyword">false</span>;
6000058             <span class="comment">// If all points are on outside of any plane, we fail</span>
6100059             <span class="keyword">const</span> <a class="code" href="classOgre_1_1Vector3.html">Vector3</a>* points = box.<a class="code" href="classOgre_1_1AxisAlignedBox.html#Ogre_1_1AxisAlignedBoxa11">getAllCorners</a>();
6200060             PlaneList::const_iterator i, iend;
6300061             iend = planes.end();
6400062             <span class="keywordflow">for</span> (i = planes.begin(); i != iend; ++i)
6500063             {
6600064                 <span class="keyword">const</span> <a class="code" href="classOgre_1_1Plane.html">Plane</a>&amp; plane = *i;
6700065
6800066                 <span class="comment">// Test which side of the plane the corners are</span>
6900067                 <span class="comment">// Intersection fails when at all corners are on the</span>
7000068                 <span class="comment">// outside of one plane</span>
7100069                 <span class="keywordtype">bool</span> splittingPlane = <span class="keyword">true</span>;
7200070                 <span class="keywordflow">for</span> (<span class="keywordtype">int</span> corner = 0; corner &lt; 8; ++corner)
7300071                 {
7400072                     <span class="keywordflow">if</span> (plane.<a class="code" href="classOgre_1_1Plane.html#Ogre_1_1Planea5">getSide</a>(points[corner]) != outside)
7500073                     {
7600074                         <span class="comment">// this point is on the wrong side</span>
7700075                         splittingPlane = <span class="keyword">false</span>;
7800076                         <span class="keywordflow">break</span>;
7900077                     }
8000078                 }
8100079                 <span class="keywordflow">if</span> (splittingPlane)
8200080                 {
8300081                     <span class="comment">// Found a splitting plane therefore return not intersecting</span>
8400082                     <span class="keywordflow">return</span> <span class="keyword">false</span>;
8500083                 }
8600084             }
8700085
8800086             <span class="comment">// couldn't find a splitting plane, assume intersecting</span>
8900087             <span class="keywordflow">return</span> <span class="keyword">true</span>;
9000088
9100089         }
92<a name="l00093"></a><a class="code" href="classOgre_1_1PlaneBoundedVolume.html#Ogre_1_1PlaneBoundedVolumea3">00093</a>         <span class="keyword">inline</span> <span class="keywordtype">bool</span> intersects(<span class="keyword">const</span> <a class="code" href="classOgre_1_1Sphere.html">Sphere</a>&amp; sphere)<span class="keyword"> const</span>
9300094 <span class="keyword">        </span>{
9400095             PlaneList::const_iterator i, iend;
9500096             iend = planes.end();
9600097             <span class="keywordflow">for</span> (i = planes.begin(); i != iend; ++i)
9700098             {
9800099                 <span class="keyword">const</span> <a class="code" href="classOgre_1_1Plane.html">Plane</a>&amp; plane = *i;
9900100
10000101                 <span class="comment">// Test which side of the plane the sphere is</span>
10100102                 <a class="code" href="namespaceOgre.html#a420">Real</a> d = plane.<a class="code" href="classOgre_1_1Plane.html#Ogre_1_1Planea6">getDistance</a>(sphere.<a class="code" href="classOgre_1_1Sphere.html#Ogre_1_1Spherea4">getCenter</a>());
10200103                 <span class="comment">// Negate d if planes point inwards</span>
10300104                 <span class="keywordflow">if</span> (outside == Plane::NEGATIVE_SIDE) d = -d;
10400105
10500106                 <span class="keywordflow">if</span> ( (d - sphere.<a class="code" href="classOgre_1_1Sphere.html#Ogre_1_1Spherea2">getRadius</a>()) &gt; 0)
10600107                     <span class="keywordflow">return</span> <span class="keyword">false</span>;
10700108             }
10800109
10900110             <span class="keywordflow">return</span> <span class="keyword">true</span>;
11000111
11100112         }
11200113
113<a name="l00118"></a><a class="code" href="classOgre_1_1PlaneBoundedVolume.html#Ogre_1_1PlaneBoundedVolumea4">00118</a>         <span class="keyword">inline</span> std::pair&lt;bool, Real&gt; intersects(<span class="keyword">const</span> <a class="code" href="classOgre_1_1Ray.html">Ray</a>&amp; ray)
11400119         {
11500120             <span class="keywordflow">return</span> Math::intersects(ray, planes, outside == Plane::POSITIVE_SIDE);
11600121         }
11700122
11800123     };
11900124
120<a name="l00125"></a><a class="code" href="namespaceOgre.html#a411">00125</a>     <span class="keyword">typedef</span> std::vector&lt;PlaneBoundedVolume&gt; <a class="code" href="namespaceOgre.html#a411">PlaneBoundedVolumeList</a>;
12100126
12200127
12300128 }
12400129
12500130 <span class="preprocessor">#endif</span>
12600131 <span class="preprocessor"></span>
127</pre></div><hr>
128<p>
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139Last modified Sun Feb 12 12:59:50 2006
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