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<hr><h1>quad_tree.h</h1><a href="quad__tree_8h.html">Go to the documentation of this file.</a><div class="fragment"><pre>00001 
00007 <font class="comment">/* Copyright, 2000 Nevrax Ltd.</font>
00008 <font class="comment"> *</font>
00009 <font class="comment"> * This file is part of NEVRAX NEL.</font>
00010 <font class="comment"> * NEVRAX NEL is free software; you can redistribute it and/or modify</font>
00011 <font class="comment"> * it under the terms of the GNU General Public License as published by</font>
00012 <font class="comment"> * the Free Software Foundation; either version 2, or (at your option)</font>
00013 <font class="comment"> * any later version.</font>
00014 <font class="comment"></font>
00015 <font class="comment"> * NEVRAX NEL is distributed in the hope that it will be useful, but</font>
00016 <font class="comment"> * WITHOUT ANY WARRANTY; without even the implied warranty of</font>
00017 <font class="comment"> * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU</font>
00018 <font class="comment"> * General Public License for more details.</font>
00019 <font class="comment"></font>
00020 <font class="comment"> * You should have received a copy of the GNU General Public License</font>
00021 <font class="comment"> * along with NEVRAX NEL; see the file COPYING. If not, write to the</font>
00022 <font class="comment"> * Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,</font>
00023 <font class="comment"> * MA 02111-1307, USA.</font>
00024 <font class="comment"> */</font>
00025 
00026 
00027 <font class="preprocessor">#ifndef NL_QUAD_TREE_H</font>
00028 <font class="preprocessor"></font><font class="preprocessor">#define NL_QUAD_TREE_H</font>
00029 <font class="preprocessor"></font>
00030 <font class="preprocessor">#include "<a class="code" href="debug_8h.html">nel/misc/debug.h</a>"</font>
00031 <font class="preprocessor">#include "<a class="code" href="vector_8h.html">nel/misc/vector.h</a>"</font>
00032 <font class="preprocessor">#include "<a class="code" href="plane_8h.html">nel/misc/plane.h</a>"</font>
00033 <font class="preprocessor">#include "<a class="code" href="matrix_8h.html">nel/misc/matrix.h</a>"</font>
00034 <font class="preprocessor">#include &lt;list&gt;</font>
00035 <font class="preprocessor">#include &lt;vector&gt;</font>
00036 
00037 
00038 <font class="keyword">namespace       </font>NL3D
00039 {
00040 
00041 
00042 
<a name="l00096"></a><a class="code" href="classNL3D_1_1CQuadTree.html">00096</a> <font class="keyword">template</font>&lt;<font class="keyword">class</font> T&gt;       <font class="keyword">class   </font>CQuadTree
00097 {
00098 
00099 <font class="keyword">public</font>:
00101         <font class="keyword">class   </font><a class="code" href="classNL3D_1_1CQuadTree.html#l0">CIterator</a>;
<a name="l00102"></a><a class="code" href="classNL3D_1_1CQuadTree.html#l0">00102</a>         <font class="keyword">friend</font> <font class="keyword">class    </font><a class="code" href="classNL3D_1_1CQuadTree.html#l0">CIterator</a>;
00104         <font class="keyword">class   </font><a class="code" href="classNL3D_1_1CQuadTree.html#l1">CConstIterator</a>;
<a name="l00105"></a><a class="code" href="classNL3D_1_1CQuadTree.html#l1">00105</a>         <font class="keyword">friend</font> <font class="keyword">class    </font><a class="code" href="classNL3D_1_1CQuadTree.html#l1">CConstIterator</a>;
00106 
00107 <font class="keyword">public</font>:
00108 
00110         <a class="code" href="classNL3D_1_1CQuadTree.html#a0">CQuadTree</a>();
00111 
00113         <a class="code" href="classNL3D_1_1CQuadTree.html#a1">~CQuadTree</a>();
00114 
00116 
00117 
00132         <font class="keywordtype">void</font> <a class="code" href="classNL3D_1_1CQuadTree.html#z0_0">changeBase</a>(<font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CMatrix.html">NLMISC::CMatrix</a>&amp; base);
00133 
00140         <font class="keywordtype">void</font>            <a class="code" href="classNL3D_1_1CQuadTree.html#z0_1">create</a>(uint DepthMax, <font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a>&amp; center, <font class="keywordtype">float</font> size);
00142 
00143 
00145 
00146 
00147         <font class="keywordtype">void</font>            <a class="code" href="classNL3D_1_1CQuadTree.html#z1_0">clear</a>();
00148 
00151         <font class="keywordtype">void</font>            <a class="code" href="classNL3D_1_1CQuadTree.html#z1_1">eraseAll</a>();
00152 
00157         <font class="keywordtype">void</font>            <a class="code" href="classNL3D_1_1CQuadTree.html#z1_2">erase</a>(<a class="code" href="classNL3D_1_1CQuadTree.html#l0">CIterator</a> it);
00158 
00165         <a class="code" href="classNL3D_1_1CQuadTree.html#l0">CIterator</a>       <a class="code" href="classNL3D_1_1CQuadTree.html#z1_3">insert</a>(<font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a> &amp;bboxmin, <font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a> &amp;bboxmax, <font class="keyword">const</font> T &amp;val);
00167 
00168 
00170 
00171 
00173         <font class="keywordtype">void</font>            <a class="code" href="classNL3D_1_1CQuadTree.html#z2_0">clearSelection</a>();
00174 
00177         <font class="keywordtype">void</font>            <a class="code" href="classNL3D_1_1CQuadTree.html#z2_1">selectAll</a>();
00178 
00184         <font class="keywordtype">void</font>            <a class="code" href="classNL3D_1_1CQuadTree.html#z2_2">select</a>(<font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a> &amp;bboxmin, <font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a> &amp;bboxmax);
00185 
00191         <font class="keywordtype">void</font>            <a class="code" href="classNL3D_1_1CQuadTree.html#z2_2">select</a>(<font class="keyword">const</font> std::vector&lt;NLMISC::CPlane&gt; &amp;BVolume);
00192 
00198         <font class="keywordtype">void</font>            <a class="code" href="classNL3D_1_1CQuadTree.html#z2_4">selectRay</a>(<font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a>&amp; source, <font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a>&amp; dir);
00199 
00205         <font class="keywordtype">void</font>            <a class="code" href="classNL3D_1_1CQuadTree.html#z2_5">selectSegment</a>(<font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a>&amp; source, <font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a>&amp; dest);
00206 
00209         <a class="code" href="classNL3D_1_1CQuadTree.html#l0">CIterator</a>       <a class="code" href="classNL3D_1_1CQuadTree.html#z2_6">begin</a>();
00210 
00213         <a class="code" href="classNL3D_1_1CQuadTree.html#l0">CIterator</a>       <a class="code" href="classNL3D_1_1CQuadTree.html#z2_7">end</a>();
00215 
00216 
00217 
00218 <font class="comment">// =================</font>
00219 <font class="comment">// =================</font>
00220 <font class="comment">// IMPLEMENTATION.</font>
00221 <font class="comment">// =================</font>
00222 <font class="comment">// =================</font>
00223 <font class="keyword">private</font>:<font class="comment">// Classes.</font>
00224 
00225 
00226         <font class="comment">// =================</font>
00227         <font class="comment">// =================</font>
00228         <font class="comment">// CBaseNode.</font>
00229         <font class="comment">// =================</font>
00230         <font class="comment">// =================</font>
00231         <font class="comment">// Links fo an element node class.</font>
<a name="l00232"></a><a class="code" href="classNL3D_1_1CQuadTree_1_1CBaseNode.html">00232</a>         <font class="keyword">class                   </font>CBaseNode
00233         {
00234         <font class="keyword">public</font>:
00235                 <font class="comment">// for the Selection list.</font>
<a name="l00236"></a><a class="code" href="classNL3D_1_1CQuadTree_1_1CBaseNode.html#m0">00236</a>                 <a class="code" href="classNL3D_1_1CQuadTree_1_1CBaseNode.html#a0">CBaseNode</a>       *<a class="code" href="classNL3D_1_1CQuadTree_1_1CBaseNode.html#m0">Prev</a>, *<a class="code" href="classNL3D_1_1CQuadTree_1_1CBaseNode.html#m1">Next</a>;
00237                 <font class="comment">// for the quadnode list. A node MAY be pointed by 4 quad (each having the same level).</font>
<a name="l00238"></a><a class="code" href="classNL3D_1_1CQuadTree_1_1CBaseNode.html#m2">00238</a>                 <a class="code" href="classNL3D_1_1CQuadTree_1_1CBaseNode.html#a0">CBaseNode</a>       *<a class="code" href="classNL3D_1_1CQuadTree_1_1CBaseNode.html#m2">QuadPrevs</a>[4];
<a name="l00239"></a><a class="code" href="classNL3D_1_1CQuadTree_1_1CBaseNode.html#m3">00239</a>                 <a class="code" href="classNL3D_1_1CQuadTree_1_1CBaseNode.html#a0">CBaseNode</a>       *<a class="code" href="classNL3D_1_1CQuadTree_1_1CBaseNode.html#m3">QuadNexts</a>[4];
00240 
00241 
00242         <font class="keyword">public</font>:
<a name="l00243"></a><a class="code" href="classNL3D_1_1CQuadTree_1_1CBaseNode.html#a0">00243</a>                 <a class="code" href="classNL3D_1_1CQuadTree_1_1CBaseNode.html#a0">CBaseNode</a>()
00244                 {
00245                         Prev=Next=NULL;
00246                         QuadPrevs[0]= QuadPrevs[1]= QuadPrevs[2]= QuadPrevs[3]= NULL;
00247                         QuadNexts[0]= QuadNexts[1]= QuadNexts[2]= QuadNexts[3]= NULL;
00248                 }
<a name="l00249"></a><a class="code" href="classNL3D_1_1CQuadTree_1_1CBaseNode.html#a1">00249</a>                 <font class="keyword">virtual</font> <a class="code" href="classNL3D_1_1CQuadTree_1_1CBaseNode.html#a1">~CBaseNode</a>() {}         <font class="comment">// Empty destructor, but declare it as virtual...</font>
<a name="l00250"></a><a class="code" href="classNL3D_1_1CQuadTree_1_1CBaseNode.html#a2">00250</a>                 <font class="keywordtype">void</font>    <a class="code" href="classNL3D_1_1CQuadTree_1_1CBaseNode.html#a2">clear</a>()                         <font class="comment">// update links.</font>
00251                 {
00252                         <font class="comment">// On le retire de la selection.</font>
00253                         <font class="keywordflow">if</font>(Prev)        Prev-&gt;Next= Next;
00254                         <font class="keywordflow">if</font>(Next)        Next-&gt;Prev= Prev;
00255                         Prev=Next=NULL;
00256                         <font class="comment">// On le retire des listes dans les quads.</font>
00257                         <font class="keywordflow">for</font>(uint i=0;i&lt;4;i++)
00258                         {
00259                                 <font class="keywordflow">if</font>(QuadPrevs[i])        {<a class="code" href="debug_8h.html#a6">nlassert</a>(QuadPrevs[i]-&gt;QuadNexts[i]==<font class="keyword">this</font>); QuadPrevs[i]-&gt;QuadNexts[i]= QuadNexts[i];}
00260                                 <font class="keywordflow">if</font>(QuadNexts[i])        {<a class="code" href="debug_8h.html#a6">nlassert</a>(QuadNexts[i]-&gt;QuadPrevs[i]==<font class="keyword">this</font>); QuadNexts[i]-&gt;QuadPrevs[i]= QuadPrevs[i];}
00261                                 QuadPrevs[i]=NULL;
00262                                 QuadNexts[i]=NULL;
00263                         }
00264                 }
<a name="l00265"></a><a class="code" href="classNL3D_1_1CQuadTree_1_1CBaseNode.html#a3">00265</a>                 <font class="keywordtype">bool</font>    <a class="code" href="classNL3D_1_1CQuadTree_1_1CBaseNode.html#a3">isSelected</a>()    <font class="comment">// return true if Prev is not NULL!!!</font>
00266                 {
00267                         <font class="keywordflow">return</font> Prev!=NULL;
00268                 }
00269         };
00270 
00271 
00272         <font class="comment">// =================</font>
00273         <font class="comment">// =================</font>
00274         <font class="comment">// CNode.</font>
00275         <font class="comment">// =================</font>
00276         <font class="comment">// =================</font>
00277         <font class="comment">// An element node class.</font>
<a name="l00278"></a><a class="code" href="classNL3D_1_1CQuadTree_1_1CNode.html">00278</a>         <font class="keyword">class                   </font>CNode : <font class="keyword">public</font> CBaseNode
00279         {
00280         <font class="keyword">public</font>:
00281                 <font class="comment">// A base node, plus the Value.</font>
<a name="l00282"></a><a class="code" href="classNL3D_1_1CQuadTree_1_1CNode.html#m0">00282</a>                 T                       <a class="code" href="classNL3D_1_1CQuadTree_1_1CNode.html#m0">Value</a>;
<a name="l00283"></a><a class="code" href="classNL3D_1_1CQuadTree_1_1CNode.html#a0">00283</a>                 <a class="code" href="classNL3D_1_1CQuadTree_1_1CNode.html#a0">CNode</a>(<font class="keyword">const</font> T &amp;val) : <a class="code" href="classNL3D_1_1CQuadTree_1_1CNode.html#m0">Value</a>(val) {}
00284         };
00285 
00286 
00287         <font class="comment">// =================</font>
00288         <font class="comment">// =================</font>
00289         <font class="comment">// CQuadNode.</font>
00290         <font class="comment">// =================</font>
00291         <font class="comment">// =================</font>
<a name="l00292"></a><a class="code" href="classNL3D_1_1CQuadTree_1_1CQuadNode.html">00292</a>         <font class="keyword">class                           </font>CQuadNode
00293         {
00294         <font class="keyword">public</font>:
<a name="l00295"></a><a class="code" href="classNL3D_1_1CQuadTree_1_1CQuadNode.html#m0">00295</a>                 uint                    <a class="code" href="classNL3D_1_1CQuadTree_1_1CQuadNode.html#m0">Level</a>;
<a name="l00296"></a><a class="code" href="classNL3D_1_1CQuadTree_1_1CQuadNode.html#m1">00296</a>                 <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a>                 <a class="code" href="classNL3D_1_1CQuadTree_1_1CQuadNode.html#m1">BBoxMin</a>, <a class="code" href="classNL3D_1_1CQuadTree_1_1CQuadNode.html#m2">BBoxMax</a>;
<a name="l00297"></a><a class="code" href="classNL3D_1_1CQuadTree_1_1CQuadNode.html#m3">00297</a>                 <font class="keywordtype">bool</font>                    <a class="code" href="classNL3D_1_1CQuadTree_1_1CQuadNode.html#m3">BBoxNeverRescale</a>;
<a name="l00298"></a><a class="code" href="classNL3D_1_1CQuadTree_1_1CQuadNode.html#m4">00298</a>                 <a class="code" href="classNL3D_1_1CQuadTree_1_1CQuadNode.html#a0">CQuadNode</a>               *<a class="code" href="classNL3D_1_1CQuadTree_1_1CQuadNode.html#m4">Sons</a>[4];
<a name="l00299"></a><a class="code" href="classNL3D_1_1CQuadTree_1_1CQuadNode.html#m5">00299</a>                 CBaseNode               <a class="code" href="classNL3D_1_1CQuadTree_1_1CQuadNode.html#m5">RootNode</a>;               <font class="comment">// First element of the element list in this quad.</font>
<a name="l00300"></a><a class="code" href="classNL3D_1_1CQuadTree_1_1CQuadNode.html#m6">00300</a>                 uint                    <a class="code" href="classNL3D_1_1CQuadTree_1_1CQuadNode.html#m6">ListIndex</a>;              <font class="comment">// [0,3]. index of wich list to follow in "Node.QuadNexts[]".</font>
00301                 <font class="comment">/* Topology of sons (top view: axe x/z):</font>
00302 <font class="comment">                        0--1</font>
00303 <font class="comment">                        |  |</font>
00304 <font class="comment">                        2--3</font>
00305 <font class="comment">                */</font>
00306                 
00307 
00308         <font class="keyword">public</font>:
00309                 <font class="comment">// ============================================================================================</font>
<a name="l00310"></a><a class="code" href="classNL3D_1_1CQuadTree_1_1CQuadNode.html#a0">00310</a>                 <a class="code" href="classNL3D_1_1CQuadTree_1_1CQuadNode.html#a0">CQuadNode</a>()
00311                 {
00312                         <a class="code" href="classNL3D_1_1CQuadTree_1_1CQuadNode.html#m0">Level</a>=0; Sons[0]= Sons[1]= Sons[2]= Sons[3]= NULL;
00313                         <a class="code" href="classNL3D_1_1CQuadTree_1_1CQuadNode.html#m6">ListIndex</a>= 0;
00314                         <a class="code" href="classNL3D_1_1CQuadTree_1_1CQuadNode.html#m3">BBoxNeverRescale</a>=<font class="keyword">true</font>;
00315                 }
00316                 <font class="comment">// ============================================================================================</font>
<a name="l00317"></a><a class="code" href="classNL3D_1_1CQuadTree_1_1CQuadNode.html#a1">00317</a>                 <font class="keywordtype">bool</font>    <a class="code" href="classNL3D_1_1CQuadTree_1_1CQuadNode.html#a1">isLeaf</a>()
00318                 {
00319                         <font class="keywordflow">return</font> Sons[0]==NULL;
00320                 }
00321                 <font class="comment">// ============================================================================================</font>
<a name="l00322"></a><a class="code" href="classNL3D_1_1CQuadTree_1_1CQuadNode.html#a2">00322</a>                 <font class="keywordtype">void</font>    <a class="code" href="classNL3D_1_1CQuadTree_1_1CQuadNode.html#a2">clear</a>()
00323                 {
00324                         <font class="comment">// Deletons les element dans ce quad node.</font>
00325                         CBaseNode       *p;
00326                         <font class="keywordflow">while</font>( (p=RootNode.QuadNexts[<a class="code" href="classNL3D_1_1CQuadTree_1_1CQuadNode.html#m6">ListIndex</a>]) )
00327                         {
00328                                 p-&gt;clear();     <font class="comment">// On clear les links. =&gt; RootNode.QuadNexts[ListIndex] modifi� implicitement.</font>
00329                                 <font class="keyword">delete</font> p;       <font class="comment">// On delete cet element!!</font>
00330                         }
00331 
00332                         <font class="comment">// Deletons les quad fils.</font>
00333                         <font class="keywordflow">for</font>(uint i=0;i&lt;4;i++)
00334                         {
00335                                 <font class="keywordflow">if</font>(Sons[i])
00336                                 {
00337                                         Sons[i]-&gt;clear();
00338                                         <font class="keyword">delete</font> Sons[i];
00339                                         Sons[i]= NULL;
00340                                 }
00341                         }
00342                 }
00343                 <font class="comment">// ============================================================================================</font>
<a name="l00344"></a><a class="code" href="classNL3D_1_1CQuadTree_1_1CQuadNode.html#a3">00344</a>                 <font class="keywordtype">void</font>    <a class="code" href="classNL3D_1_1CQuadTree_1_1CQuadNode.html#a3">split</a>()
00345                 {
00346                         <a class="code" href="debug_8h.html#a6">nlassert</a>(<a class="code" href="classNL3D_1_1CQuadTree_1_1CQuadNode.html#a1">isLeaf</a>());
00347                         sint    i;
00348 
00349                         <font class="keywordflow">for</font>(i=0;i&lt;4;i++)
00350                         {
00351                                 Sons[i]= <font class="keyword">new</font> <a class="code" href="classNL3D_1_1CQuadTree_1_1CQuadNode.html#a0">CQuadNode</a>;
00352                                 Sons[i]-&gt;Level= <a class="code" href="classNL3D_1_1CQuadTree_1_1CQuadNode.html#m0">Level</a>+1;
00353                                 Sons[i]-&gt;ListIndex= i;
00354                         }
00355                         <font class="comment">// Middle compute.</font>
00356                         <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a>         MidLeft(0,0,0), MidRight(0,0,0), MidTop(0,0,0), MidBottom(0,0,0), Middle(0,0,0);
00357                         MidLeft.<a class="code" href="classNLMISC_1_1CVector.html#m0">x</a>  = BBoxMin.<a class="code" href="classNLMISC_1_1CVector.html#m0">x</a>; MidLeft.<a class="code" href="classNLMISC_1_1CVector.html#m2">z</a>       = (BBoxMin.<a class="code" href="classNLMISC_1_1CVector.html#m2">z</a> + BBoxMax.<a class="code" href="classNLMISC_1_1CVector.html#m2">z</a>)/2;
00358                         MidRight.<a class="code" href="classNLMISC_1_1CVector.html#m0">x</a> = BBoxMax.<a class="code" href="classNLMISC_1_1CVector.html#m0">x</a>; MidRight.<a class="code" href="classNLMISC_1_1CVector.html#m2">z</a>      = (BBoxMin.<a class="code" href="classNLMISC_1_1CVector.html#m2">z</a> + BBoxMax.<a class="code" href="classNLMISC_1_1CVector.html#m2">z</a>)/2;
00359                         MidTop.<a class="code" href="classNLMISC_1_1CVector.html#m0">x</a>   = (BBoxMin.<a class="code" href="classNLMISC_1_1CVector.html#m0">x</a> + BBoxMax.<a class="code" href="classNLMISC_1_1CVector.html#m0">x</a>)/2; MidTop.<a class="code" href="classNLMISC_1_1CVector.html#m2">z</a>   = BBoxMin.<a class="code" href="classNLMISC_1_1CVector.html#m2">z</a>;
00360                         MidBottom.<a class="code" href="classNLMISC_1_1CVector.html#m0">x</a>= (BBoxMin.<a class="code" href="classNLMISC_1_1CVector.html#m0">x</a> + BBoxMax.<a class="code" href="classNLMISC_1_1CVector.html#m0">x</a>)/2; MidBottom.<a class="code" href="classNLMISC_1_1CVector.html#m2">z</a>= BBoxMax.<a class="code" href="classNLMISC_1_1CVector.html#m2">z</a>;
00361                         Middle.<a class="code" href="classNLMISC_1_1CVector.html#m0">x</a>   = MidTop.<a class="code" href="classNLMISC_1_1CVector.html#m0">x</a>; Middle.<a class="code" href="classNLMISC_1_1CVector.html#m2">z</a> = MidLeft.<a class="code" href="classNLMISC_1_1CVector.html#m2">z</a>;
00362                         <font class="comment">// Sons compute.</font>
00363                         <font class="comment">// Don't care of Y.</font>
00364                         Sons[0]-&gt;BBoxMin = BBoxMin; Sons[0]-&gt;BBoxMax = Middle; 
00365                         Sons[1]-&gt;BBoxMin = MidTop ; Sons[1]-&gt;BBoxMax = MidRight; 
00366                         Sons[2]-&gt;BBoxMin = MidLeft; Sons[2]-&gt;BBoxMax = MidBottom; 
00367                         Sons[3]-&gt;BBoxMin = Middle;  Sons[3]-&gt;BBoxMax = BBoxMax;
00368 
00369                 }
00370 
00371 
00372                 <font class="comment">// ============================================================================================</font>
00373                 <font class="comment">// This is a quadtree, so those tests just test against x/z. (the base of the box).</font>
<a name="l00374"></a><a class="code" href="classNL3D_1_1CQuadTree_1_1CQuadNode.html#a4">00374</a>                 <font class="keywordtype">bool</font>    <a class="code" href="classNL3D_1_1CQuadTree_1_1CQuadNode.html#a4">includeBoxQuad</a>(<font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a> &amp;boxmin, <font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a> &amp;boxmax)
00375                 {
00376                         <font class="keywordflow">if</font>( BBoxMin.<a class="code" href="classNLMISC_1_1CVector.html#m0">x</a>&lt;= boxmin.<a class="code" href="classNLMISC_1_1CVector.html#m0">x</a> &amp;&amp; BBoxMax.<a class="code" href="classNLMISC_1_1CVector.html#m0">x</a>&gt;= boxmax.<a class="code" href="classNLMISC_1_1CVector.html#m0">x</a> &amp;&amp; 
00377                                 BBoxMin.<a class="code" href="classNLMISC_1_1CVector.html#m2">z</a>&lt;= boxmin.<a class="code" href="classNLMISC_1_1CVector.html#m2">z</a> &amp;&amp; BBoxMax.<a class="code" href="classNLMISC_1_1CVector.html#m2">z</a>&gt;= boxmax.<a class="code" href="classNLMISC_1_1CVector.html#m2">z</a>)
00378                                 <font class="keywordflow">return</font> <font class="keyword">true</font>;
00379                         <font class="keywordflow">else</font>
00380                                 <font class="keywordflow">return</font> <font class="keyword">false</font>;
00381                 }
00382                 <font class="comment">// ============================================================================================</font>
<a name="l00383"></a><a class="code" href="classNL3D_1_1CQuadTree_1_1CQuadNode.html#a5">00383</a>                 <font class="keywordtype">bool</font>    <a class="code" href="classNL3D_1_1CQuadTree_1_1CQuadNode.html#a5">intersectBoxQuad</a>(<font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a> &amp;boxmin, <font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a> &amp;boxmax)
00384                 {
00385                         <font class="comment">// inequality and equality is very important, to ensure that a element box will not fit in too many quad boxes.</font>
00386                         <font class="keywordflow">if</font>(boxmin.<a class="code" href="classNLMISC_1_1CVector.html#m0">x</a> &gt; BBoxMax.<a class="code" href="classNLMISC_1_1CVector.html#m0">x</a>)        <font class="keywordflow">return</font> <font class="keyword">false</font>;
00387                         <font class="keywordflow">if</font>(boxmin.<a class="code" href="classNLMISC_1_1CVector.html#m2">z</a> &gt; BBoxMax.<a class="code" href="classNLMISC_1_1CVector.html#m2">z</a>)        <font class="keywordflow">return</font> <font class="keyword">false</font>;
00388                         <font class="keywordflow">if</font>(boxmax.<a class="code" href="classNLMISC_1_1CVector.html#m0">x</a> &lt;= BBoxMin.<a class="code" href="classNLMISC_1_1CVector.html#m0">x</a>)       <font class="keywordflow">return</font> <font class="keyword">false</font>;
00389                         <font class="keywordflow">if</font>(boxmax.<a class="code" href="classNLMISC_1_1CVector.html#m2">z</a> &lt;= BBoxMin.<a class="code" href="classNLMISC_1_1CVector.html#m2">z</a>)       <font class="keywordflow">return</font> <font class="keyword">false</font>;
00390                         <font class="keywordflow">return</font> <font class="keyword">true</font>;
00391                 }
00392                 <font class="comment">// ============================================================================================</font>
<a name="l00393"></a><a class="code" href="classNL3D_1_1CQuadTree_1_1CQuadNode.html#a6">00393</a>                 <font class="keywordtype">bool</font>    <a class="code" href="classNL3D_1_1CQuadTree_1_1CQuadNode.html#a6">intersectBox</a>(<font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a> &amp;boxmin, <font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a> &amp;boxmax)
00394                 {
00395                         <font class="comment">// inequality and equality is very important, to ensure that a element box will not fit in too many quad boxes.</font>
00396                         <font class="keywordflow">if</font>(boxmin.<a class="code" href="classNLMISC_1_1CVector.html#m0">x</a> &gt; BBoxMax.<a class="code" href="classNLMISC_1_1CVector.html#m0">x</a>)        <font class="keywordflow">return</font> <font class="keyword">false</font>;
00397                         <font class="keywordflow">if</font>(boxmin.<a class="code" href="classNLMISC_1_1CVector.html#m1">y</a> &gt; BBoxMax.<a class="code" href="classNLMISC_1_1CVector.html#m1">y</a>)        <font class="keywordflow">return</font> <font class="keyword">false</font>;
00398                         <font class="keywordflow">if</font>(boxmin.<a class="code" href="classNLMISC_1_1CVector.html#m2">z</a> &gt; BBoxMax.<a class="code" href="classNLMISC_1_1CVector.html#m2">z</a>)        <font class="keywordflow">return</font> <font class="keyword">false</font>;
00399                         <font class="keywordflow">if</font>(boxmax.<a class="code" href="classNLMISC_1_1CVector.html#m0">x</a> &lt;= BBoxMin.<a class="code" href="classNLMISC_1_1CVector.html#m0">x</a>)       <font class="keywordflow">return</font> <font class="keyword">false</font>;
00400                         <font class="keywordflow">if</font>(boxmax.<a class="code" href="classNLMISC_1_1CVector.html#m1">y</a> &lt;= BBoxMin.<a class="code" href="classNLMISC_1_1CVector.html#m1">y</a>)       <font class="keywordflow">return</font> <font class="keyword">false</font>;
00401                         <font class="keywordflow">if</font>(boxmax.<a class="code" href="classNLMISC_1_1CVector.html#m2">z</a> &lt;= BBoxMin.<a class="code" href="classNLMISC_1_1CVector.html#m2">z</a>)       <font class="keywordflow">return</font> <font class="keyword">false</font>;
00402                         <font class="keywordflow">return</font> <font class="keyword">true</font>;
00403                 }
00404                 <font class="comment">// ============================================================================================</font>
<a name="l00405"></a><a class="code" href="classNL3D_1_1CQuadTree_1_1CQuadNode.html#a7">00405</a>                 <font class="keywordtype">bool</font>    <a class="code" href="classNL3D_1_1CQuadTree_1_1CQuadNode.html#a6">intersectBox</a>(std::vector&lt;NLMISC::CPlane&gt; &amp;BVolume)
00406                 {
00407                         <font class="keyword">const</font>   <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a> &amp;b1=BBoxMin;
00408                         <font class="keyword">const</font>   <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a> &amp;b2=BBoxMax;
00409 
00410                         <font class="keywordflow">for</font>(sint i=0;i&lt;(int)BVolume.size();i++)
00411                         {
00412                                 <font class="keyword">const</font>   <a class="code" href="classNLMISC_1_1CPlane.html">NLMISC::CPlane</a>  &amp;plane=BVolume[i];
00413                                 <font class="comment">// If only one of the box vertex is IN the plane, then all the box is IN this plane.</font>
00414                                 <font class="keywordflow">if</font>(plane* <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a>(b1.<a class="code" href="classNLMISC_1_1CVector.html#m0">x</a>, b1.<a class="code" href="classNLMISC_1_1CVector.html#m1">y</a>, b1.<a class="code" href="classNLMISC_1_1CVector.html#m2">z</a>)&lt;=0) <font class="keywordflow">continue</font>;
00415                                 <font class="keywordflow">if</font>(plane* <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a>(b1.<a class="code" href="classNLMISC_1_1CVector.html#m0">x</a>, b1.<a class="code" href="classNLMISC_1_1CVector.html#m1">y</a>, b2.<a class="code" href="classNLMISC_1_1CVector.html#m2">z</a>)&lt;=0) <font class="keywordflow">continue</font>;
00416                                 <font class="keywordflow">if</font>(plane* <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a>(b1.<a class="code" href="classNLMISC_1_1CVector.html#m0">x</a>, b2.<a class="code" href="classNLMISC_1_1CVector.html#m1">y</a>, b1.<a class="code" href="classNLMISC_1_1CVector.html#m2">z</a>)&lt;=0) <font class="keywordflow">continue</font>;
00417                                 <font class="keywordflow">if</font>(plane* <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a>(b1.<a class="code" href="classNLMISC_1_1CVector.html#m0">x</a>, b2.<a class="code" href="classNLMISC_1_1CVector.html#m1">y</a>, b2.<a class="code" href="classNLMISC_1_1CVector.html#m2">z</a>)&lt;=0) <font class="keywordflow">continue</font>;
00418                                 <font class="keywordflow">if</font>(plane* <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a>(b2.<a class="code" href="classNLMISC_1_1CVector.html#m0">x</a>, b1.<a class="code" href="classNLMISC_1_1CVector.html#m1">y</a>, b1.<a class="code" href="classNLMISC_1_1CVector.html#m2">z</a>)&lt;=0) <font class="keywordflow">continue</font>;
00419                                 <font class="keywordflow">if</font>(plane* <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a>(b2.<a class="code" href="classNLMISC_1_1CVector.html#m0">x</a>, b1.<a class="code" href="classNLMISC_1_1CVector.html#m1">y</a>, b2.<a class="code" href="classNLMISC_1_1CVector.html#m2">z</a>)&lt;=0) <font class="keywordflow">continue</font>;
00420                                 <font class="keywordflow">if</font>(plane* <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a>(b2.<a class="code" href="classNLMISC_1_1CVector.html#m0">x</a>, b2.<a class="code" href="classNLMISC_1_1CVector.html#m1">y</a>, b1.<a class="code" href="classNLMISC_1_1CVector.html#m2">z</a>)&lt;=0) <font class="keywordflow">continue</font>;
00421                                 <font class="keywordflow">if</font>(plane* <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a>(b2.<a class="code" href="classNLMISC_1_1CVector.html#m0">x</a>, b2.<a class="code" href="classNLMISC_1_1CVector.html#m1">y</a>, b2.<a class="code" href="classNLMISC_1_1CVector.html#m2">z</a>)&lt;=0) <font class="keywordflow">continue</font>;
00422                                 <font class="comment">// If ALL box vertices are OUT of this plane, then the box is OUT of the entire volume.</font>
00423                                 <font class="keywordflow">return</font> <font class="keyword">false</font>;
00424                         }
00425                         <font class="comment">// TODO. This is a simple box detection. The box is not really clipped and sometimes, the box will said</font>
00426                         <font class="comment">// it intersect but it is not the case... Here, We should test the real box volume, against BVolume.</font>
00427                         <font class="comment">// But this is more expensive...</font>
00428                         <font class="keywordflow">return</font> <font class="keyword">true</font>;
00429                 }
00430 
00431                 <font class="comment">// ============================================================================================</font>
<a name="l00432"></a><a class="code" href="classNL3D_1_1CQuadTree_1_1CQuadNode.html#a8">00432</a>                 <font class="keywordtype">void</font>    <a class="code" href="classNL3D_1_1CQuadTree_1_1CQuadNode.html#a8">addElement</a>(CNode *newNode)
00433                 {
00434                         <a class="code" href="debug_8h.html#a6">nlassert</a>(newNode-&gt;QuadNexts[<a class="code" href="classNL3D_1_1CQuadTree_1_1CQuadNode.html#m6">ListIndex</a>]==NULL);
00435                         newNode-&gt;QuadPrevs[<a class="code" href="classNL3D_1_1CQuadTree_1_1CQuadNode.html#m6">ListIndex</a>]= &amp;RootNode;
00436                         newNode-&gt;QuadNexts[<a class="code" href="classNL3D_1_1CQuadTree_1_1CQuadNode.html#m6">ListIndex</a>]= RootNode.QuadNexts[<a class="code" href="classNL3D_1_1CQuadTree_1_1CQuadNode.html#m6">ListIndex</a>];
00437                         <font class="keywordflow">if</font>(RootNode.QuadNexts[<a class="code" href="classNL3D_1_1CQuadTree_1_1CQuadNode.html#m6">ListIndex</a>])
00438                                 RootNode.QuadNexts[<a class="code" href="classNL3D_1_1CQuadTree_1_1CQuadNode.html#m6">ListIndex</a>]-&gt;QuadPrevs[<a class="code" href="classNL3D_1_1CQuadTree_1_1CQuadNode.html#m6">ListIndex</a>]= newNode;
00439                         RootNode.QuadNexts[<a class="code" href="classNL3D_1_1CQuadTree_1_1CQuadNode.html#m6">ListIndex</a>]= newNode;
00440                 }
00441                 <font class="comment">// ============================================================================================</font>
00442                 <font class="comment">// Insertion of a node in this quad node, or his sons...</font>
<a name="l00443"></a><a class="code" href="classNL3D_1_1CQuadTree_1_1CQuadNode.html#a9">00443</a>                 <font class="keywordtype">void</font>    <a class="code" href="classNL3D_1_1CQuadTree_1_1CQuadNode.html#a9">insert</a>(<font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a> &amp;boxmin, <font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a> &amp;boxmax, uint wantdepth, CNode *newNode)
00444                 {
00445                         <font class="keywordflow">if</font>(<a class="code" href="classNL3D_1_1CQuadTree_1_1CQuadNode.html#m0">Level</a>==0)
00446                         {
00447                                 <font class="comment">// Tous les elements qui sortent du quadtree sont forc�ment dans le noeud root.</font>
00448                                 <font class="keywordflow">if</font>(!<a class="code" href="classNL3D_1_1CQuadTree_1_1CQuadNode.html#a4">includeBoxQuad</a>(boxmin, boxmax))
00449                                 {
00450                                         <font class="comment">// Il faut agrandir la BBox en Y du quadnode.</font>
00451                                         <font class="keywordflow">if</font>(BBoxNeverRescale)
00452                                         {
00453                                                 BBoxMin.<a class="code" href="classNLMISC_1_1CVector.html#m1">y</a>= boxmin.<a class="code" href="classNLMISC_1_1CVector.html#m1">y</a>;
00454                                                 BBoxMax.<a class="code" href="classNLMISC_1_1CVector.html#m1">y</a>= boxmax.<a class="code" href="classNLMISC_1_1CVector.html#m1">y</a>;
00455                                                 <a class="code" href="classNL3D_1_1CQuadTree_1_1CQuadNode.html#m3">BBoxNeverRescale</a>= <font class="keyword">false</font>;
00456                                         }
00457                                         <font class="keywordflow">else</font>
00458                                         {
00459                                                 BBoxMin.<a class="code" href="classNLMISC_1_1CVector.html#m1">y</a>= <a class="code" href="bit__set_8cpp.html#a0">std::min</a>(boxmin.<a class="code" href="classNLMISC_1_1CVector.html#m1">y</a>, BBoxMin.<a class="code" href="classNLMISC_1_1CVector.html#m1">y</a>);
00460                                                 BBoxMax.<a class="code" href="classNLMISC_1_1CVector.html#m1">y</a>= std::max(boxmax.<a class="code" href="classNLMISC_1_1CVector.html#m1">y</a>, BBoxMax.<a class="code" href="classNLMISC_1_1CVector.html#m1">y</a>);
00461                                         }
00462                                         <a class="code" href="classNL3D_1_1CQuadTree_1_1CQuadNode.html#a8">addElement</a>(newNode);
00463                                         <font class="keywordflow">return</font>;
00464                                 }
00465                         }
00466 
00467                         <font class="comment">// Si au moins une partie de l'element n'est pas dans le noeud de ce quad, exit.</font>
00468                         <font class="keywordflow">if</font>(!<a class="code" href="classNL3D_1_1CQuadTree_1_1CQuadNode.html#a5">intersectBoxQuad</a>(boxmin, boxmax))
00469                                 <font class="keywordflow">return</font>;
00470 
00471                         <font class="comment">// Que l'on insere ici ou dans les fils, il faut agrandir la BBox en Y du quadnode.</font>
00472                         <font class="keywordflow">if</font>(BBoxNeverRescale)
00473                         {
00474                                 BBoxMin.<a class="code" href="classNLMISC_1_1CVector.html#m1">y</a>= boxmin.<a class="code" href="classNLMISC_1_1CVector.html#m1">y</a>;
00475                                 BBoxMax.<a class="code" href="classNLMISC_1_1CVector.html#m1">y</a>= boxmax.<a class="code" href="classNLMISC_1_1CVector.html#m1">y</a>;
00476                                 <a class="code" href="classNL3D_1_1CQuadTree_1_1CQuadNode.html#m3">BBoxNeverRescale</a>= <font class="keyword">false</font>;
00477                         }
00478                         <font class="keywordflow">else</font>
00479                         {
00480                                 BBoxMin.<a class="code" href="classNLMISC_1_1CVector.html#m1">y</a>= <a class="code" href="bit__set_8cpp.html#a0">std::min</a>(boxmin.<a class="code" href="classNLMISC_1_1CVector.html#m1">y</a>, BBoxMin.<a class="code" href="classNLMISC_1_1CVector.html#m1">y</a>);
00481                                 BBoxMax.<a class="code" href="classNLMISC_1_1CVector.html#m1">y</a>= std::max(boxmax.<a class="code" href="classNLMISC_1_1CVector.html#m1">y</a>, BBoxMax.<a class="code" href="classNLMISC_1_1CVector.html#m1">y</a>);
00482                         }
00483 
00484                         <font class="comment">// Si on est au bon, niveau, on a plus qu'� l'ins�rer dans ce node.</font>
00485                         <font class="keywordflow">if</font>(wantdepth==<a class="code" href="classNL3D_1_1CQuadTree_1_1CQuadNode.html#m0">Level</a>)
00486                         {
00487                                         <a class="code" href="classNL3D_1_1CQuadTree_1_1CQuadNode.html#a8">addElement</a>(newNode);
00488                         }
00489                         <font class="keywordflow">else</font>
00490                         {
00491                                 <font class="comment">// Si le quad est une feuille, il faut le splitter (car on est pas encore arriv� au bon niveau).</font>
00492                                 <font class="keywordflow">if</font>(<a class="code" href="classNL3D_1_1CQuadTree_1_1CQuadNode.html#a1">isLeaf</a>())
00493                                         <a class="code" href="classNL3D_1_1CQuadTree_1_1CQuadNode.html#a3">split</a>();
00494 
00495                                 <font class="comment">// Et on cherche � mettre l'�l�ment dans un de ces noeuds.</font>
00496                                 Sons[0]-&gt;insert(boxmin, boxmax, wantdepth, newNode);
00497                                 Sons[1]-&gt;insert(boxmin, boxmax, wantdepth, newNode);
00498                                 Sons[2]-&gt;insert(boxmin, boxmax, wantdepth, newNode);
00499                                 Sons[3]-&gt;insert(boxmin, boxmax, wantdepth, newNode);
00500                         }
00501 
00502                 }
00503 
00504                 
00505                 <font class="comment">// ============================================================================================</font>
00506                 <font class="comment">// Selection.</font>
<a name="l00507"></a><a class="code" href="classNL3D_1_1CQuadTree_1_1CQuadNode.html#a10">00507</a>                 <font class="keywordtype">void</font>    <a class="code" href="classNL3D_1_1CQuadTree_1_1CQuadNode.html#a10">selectLocalNodes</a>(CBaseNode      &amp;selroot)
00508                 {
00509                         CBaseNode       *p= RootNode.QuadNexts[<a class="code" href="classNL3D_1_1CQuadTree_1_1CQuadNode.html#m6">ListIndex</a>];
00510                         <font class="keywordflow">while</font>(p)
00511                         {
00512                                 <font class="keywordflow">if</font>(!p-&gt;isSelected())
00513                                 {
00514                                         p-&gt;Prev= &amp;selroot;
00515                                         p-&gt;Next= selroot.Next;
00516                                         <font class="keywordflow">if</font>(selroot.Next)
00517                                                 selroot.Next-&gt;Prev= p;
00518                                         selroot.Next= p;
00519                                 }
00520                                 p=p-&gt;QuadNexts[<a class="code" href="classNL3D_1_1CQuadTree_1_1CQuadNode.html#m6">ListIndex</a>];
00521                         }
00522                 }
00523                 <font class="comment">// ============================================================================================</font>
<a name="l00524"></a><a class="code" href="classNL3D_1_1CQuadTree_1_1CQuadNode.html#a11">00524</a>                 <font class="keywordtype">void</font>    <a class="code" href="classNL3D_1_1CQuadTree_1_1CQuadNode.html#a11">selectAll</a>(CBaseNode     &amp;selroot)
00525                 {
00526                         <a class="code" href="classNL3D_1_1CQuadTree_1_1CQuadNode.html#a10">selectLocalNodes</a>(selroot);
00527                         <font class="keywordflow">if</font>(!<a class="code" href="classNL3D_1_1CQuadTree_1_1CQuadNode.html#a1">isLeaf</a>())
00528                         {
00529                                 Sons[0]-&gt;selectAll(selroot);
00530                                 Sons[1]-&gt;selectAll(selroot);
00531                                 Sons[2]-&gt;selectAll(selroot);
00532                                 Sons[3]-&gt;selectAll(selroot);
00533                         }
00534                 }
00535                 <font class="comment">// ============================================================================================</font>
<a name="l00536"></a><a class="code" href="classNL3D_1_1CQuadTree_1_1CQuadNode.html#a12">00536</a>                 <font class="keywordtype">void</font>    <a class="code" href="classNL3D_1_1CQuadTree_1_1CQuadNode.html#a12">select</a>(CBaseNode &amp;selroot, <font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a> &amp;bboxmin, <font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a> &amp;bboxmax)
00537                 {
00538                         <font class="comment">// TODO:</font>
00539                         <font class="comment">// ya un bug avec le level0: en effet la bbox n'a pas �t� agrandie pour contenir les elements.</font>
00540                         <font class="keywordflow">if</font>(!<a class="code" href="classNL3D_1_1CQuadTree_1_1CQuadNode.html#a6">intersectBox</a>(bboxmin, bboxmax))
00541                                 <font class="keywordflow">return</font>;
00542                         <a class="code" href="classNL3D_1_1CQuadTree_1_1CQuadNode.html#a10">selectLocalNodes</a>(selroot);
00543                         <font class="keywordflow">if</font>(!<a class="code" href="classNL3D_1_1CQuadTree_1_1CQuadNode.html#a1">isLeaf</a>())
00544                         {
00545                                 Sons[0]-&gt;select(selroot, bboxmin, bboxmax);
00546                                 Sons[1]-&gt;select(selroot, bboxmin, bboxmax);
00547                                 Sons[2]-&gt;select(selroot, bboxmin, bboxmax);
00548                                 Sons[3]-&gt;select(selroot, bboxmin, bboxmax);
00549                         }
00550                 }
00551                 <font class="comment">// ============================================================================================</font>
<a name="l00552"></a><a class="code" href="classNL3D_1_1CQuadTree_1_1CQuadNode.html#a13">00552</a>                 <font class="keywordtype">void</font>            <a class="code" href="classNL3D_1_1CQuadTree_1_1CQuadNode.html#a12">select</a>(CBaseNode &amp;selroot, std::vector&lt;NLMISC::CPlane&gt; &amp;BVolume)
00553                 {
00554                         <font class="comment">// TODO:</font>
00555                         <font class="comment">// ya un bug avec le level0: en effet la bbox n'a pas �t� agrandie pour contenir les elements.</font>
00556                         <font class="keywordflow">if</font>(!<a class="code" href="classNL3D_1_1CQuadTree_1_1CQuadNode.html#a6">intersectBox</a>(BVolume))
00557                                 <font class="keywordflow">return</font>;
00558                         <a class="code" href="classNL3D_1_1CQuadTree_1_1CQuadNode.html#a10">selectLocalNodes</a>(selroot);
00559                         <font class="keywordflow">if</font>(!<a class="code" href="classNL3D_1_1CQuadTree_1_1CQuadNode.html#a1">isLeaf</a>())
00560                         {
00561                                 Sons[0]-&gt;select(selroot, BVolume);
00562                                 Sons[1]-&gt;select(selroot, BVolume);
00563                                 Sons[2]-&gt;select(selroot, BVolume);
00564                                 Sons[3]-&gt;select(selroot, BVolume);
00565                         }
00566                 }
00567         };
00568 
00569 
00570 
00571 <font class="comment">// =================</font>
00572 <font class="comment">// =================</font>
00573 <font class="comment">// Attributes/Methods/iterators..</font>
00574 <font class="comment">// =================</font>
00575 <font class="comment">// =================</font>
00576 <font class="keyword">private</font>:<font class="comment">// Attributes.</font>
<a name="l00577"></a><a class="code" href="classNL3D_1_1CQuadTree.html#o0">00577</a>         CQuadNode       <a class="code" href="classNL3D_1_1CQuadTree.html#o0">_QuadRoot</a>;
<a name="l00578"></a><a class="code" href="classNL3D_1_1CQuadTree.html#o1">00578</a>         CBaseNode       <a class="code" href="classNL3D_1_1CQuadTree.html#o1">_Selection</a>;
<a name="l00579"></a><a class="code" href="classNL3D_1_1CQuadTree.html#o2">00579</a>         uint            <a class="code" href="classNL3D_1_1CQuadTree.html#o2">_DepthMax</a>;
<a name="l00580"></a><a class="code" href="classNL3D_1_1CQuadTree.html#o3">00580</a>         <font class="keywordtype">float</font>           <a class="code" href="classNL3D_1_1CQuadTree.html#o3">_Size</a>;
<a name="l00581"></a><a class="code" href="classNL3D_1_1CQuadTree.html#o4">00581</a>         <a class="code" href="classNLMISC_1_1CMatrix.html">NLMISC::CMatrix</a>         <a class="code" href="classNL3D_1_1CQuadTree.html#o4">_ChangeBasis</a>;
00582 
00583 <font class="keyword">private</font>:<font class="comment">// Methods.</font>
00584 
00585 
00586 
00587 <font class="keyword">public</font>:
00588         <font class="comment">// CLASS const_iterator.</font>
<a name="l00589"></a><a class="code" href="classNL3D_1_1CQuadTree_1_1const__iterator.html">00589</a>         <font class="keyword">class </font>const_iterator
00590         {
00591         <font class="keyword">public</font>:
<a name="l00592"></a><a class="code" href="classNL3D_1_1CQuadTree_1_1const__iterator.html#a0">00592</a>                 <a class="code" href="classNL3D_1_1CQuadTree_1_1const__iterator.html#a0">const_iterator</a>()        {<a class="code" href="classNL3D_1_1CQuadTree_1_1const__iterator.html#n0">_Ptr</a>=NULL;}
<a name="l00593"></a><a class="code" href="classNL3D_1_1CQuadTree_1_1const__iterator.html#a1">00593</a>                 <a class="code" href="classNL3D_1_1CQuadTree_1_1const__iterator.html#a0">const_iterator</a>(CNode *p) : <a class="code" href="classNL3D_1_1CQuadTree_1_1const__iterator.html#n0">_Ptr</a>(p) {}
<a name="l00594"></a><a class="code" href="classNL3D_1_1CQuadTree_1_1const__iterator.html#a2">00594</a>                 <a class="code" href="classNL3D_1_1CQuadTree_1_1const__iterator.html#a0">const_iterator</a>(<font class="keyword">const</font> <a class="code" href="classNL3D_1_1CQuadTree_1_1const__iterator.html#l1">CIterator</a>&amp; <a class="code" href="driver__opengl__extension__def_8h.html#a364">x</a>) : <a class="code" href="classNL3D_1_1CQuadTree_1_1const__iterator.html#n0">_Ptr</a>(<a class="code" href="driver__opengl__extension__def_8h.html#a364">x</a>.<a class="code" href="classNL3D_1_1CQuadTree_1_1const__iterator.html#n0">_Ptr</a>) {}
00595 
<a name="l00596"></a><a class="code" href="classNL3D_1_1CQuadTree_1_1const__iterator.html#a3">00596</a>                 <font class="keyword">const</font> T&amp;        <a class="code" href="classNL3D_1_1CQuadTree_1_1const__iterator.html#a3">operator*</a>()<font class="keyword"> const</font>
00597 <font class="keyword">                        </font>{<font class="keywordflow">return</font> <a class="code" href="classNL3D_1_1CQuadTree_1_1const__iterator.html#n0">_Ptr</a>-&gt;Value; }
00598                 <font class="comment">// Doesn't work...</font>
00599                 <font class="comment">/*const T*      operator-&gt;() const</font>
00600 <font class="comment">                        {return (&amp;**this); }*/</font>
<a name="l00601"></a><a class="code" href="classNL3D_1_1CQuadTree_1_1const__iterator.html#a4">00601</a>                 <a class="code" href="classNL3D_1_1CQuadTree_1_1const__iterator.html#a0">const_iterator</a>&amp; <a class="code" href="classNL3D_1_1CQuadTree_1_1const__iterator.html#a4">operator++</a>()
00602                         {<a class="code" href="classNL3D_1_1CQuadTree_1_1const__iterator.html#n0">_Ptr</a> = (CNode*)(<a class="code" href="classNL3D_1_1CQuadTree_1_1const__iterator.html#n0">_Ptr</a>-&gt;Next); <font class="keywordflow">return</font> (*this); }
<a name="l00603"></a><a class="code" href="classNL3D_1_1CQuadTree_1_1const__iterator.html#a5">00603</a>                 <a class="code" href="classNL3D_1_1CQuadTree_1_1const__iterator.html#a0">const_iterator</a> <a class="code" href="classNL3D_1_1CQuadTree_1_1const__iterator.html#a4">operator++</a>(<font class="keywordtype">int</font>)
00604                         {<a class="code" href="classNL3D_1_1CQuadTree_1_1const__iterator.html#a0">const_iterator</a> tmp = *<font class="keyword">this</font>; ++*<font class="keyword">this</font>; <font class="keywordflow">return</font> (tmp); }
<a name="l00605"></a><a class="code" href="classNL3D_1_1CQuadTree_1_1const__iterator.html#a6">00605</a>                 <a class="code" href="classNL3D_1_1CQuadTree_1_1const__iterator.html#a0">const_iterator</a>&amp; <a class="code" href="classNL3D_1_1CQuadTree_1_1const__iterator.html#a6">operator--</a>()
00606                         {<a class="code" href="classNL3D_1_1CQuadTree_1_1const__iterator.html#n0">_Ptr</a> = (CNode*)(<a class="code" href="classNL3D_1_1CQuadTree_1_1const__iterator.html#n0">_Ptr</a>-&gt;Prev); <font class="keywordflow">return</font> (*this); }
<a name="l00607"></a><a class="code" href="classNL3D_1_1CQuadTree_1_1const__iterator.html#a7">00607</a>                 <a class="code" href="classNL3D_1_1CQuadTree_1_1const__iterator.html#a0">const_iterator</a> <a class="code" href="classNL3D_1_1CQuadTree_1_1const__iterator.html#a6">operator--</a>(<font class="keywordtype">int</font>)
00608                         {<a class="code" href="classNL3D_1_1CQuadTree_1_1const__iterator.html#a0">const_iterator</a> tmp = *<font class="keyword">this</font>; --*<font class="keyword">this</font>; <font class="keywordflow">return</font> (tmp); }
<a name="l00609"></a><a class="code" href="classNL3D_1_1CQuadTree_1_1const__iterator.html#a8">00609</a>                 <font class="keywordtype">bool</font> <a class="code" href="classNL3D_1_1CQuadTree_1_1const__iterator.html#a8">operator==</a>(<font class="keyword">const</font> <a class="code" href="classNL3D_1_1CQuadTree_1_1const__iterator.html#a0">const_iterator</a>&amp; <a class="code" href="driver__opengl__extension__def_8h.html#a364">x</a>)<font class="keyword"> const</font>
00610 <font class="keyword">                        </font>{<font class="keywordflow">return</font> (<a class="code" href="classNL3D_1_1CQuadTree_1_1const__iterator.html#n0">_Ptr</a> == x._Ptr); }
<a name="l00611"></a><a class="code" href="classNL3D_1_1CQuadTree_1_1const__iterator.html#a9">00611</a>                 <font class="keywordtype">bool</font> <a class="code" href="classNL3D_1_1CQuadTree_1_1const__iterator.html#a9">operator!=</a>(<font class="keyword">const</font> <a class="code" href="classNL3D_1_1CQuadTree_1_1const__iterator.html#a0">const_iterator</a>&amp; <a class="code" href="driver__opengl__extension__def_8h.html#a364">x</a>)<font class="keyword"> const</font>
00612 <font class="keyword">                        </font>{<font class="keywordflow">return</font> (!(*<font class="keyword">this</font> == x)); }
00613         <font class="keyword">protected</font>:
<a name="l00614"></a><a class="code" href="classNL3D_1_1CQuadTree_1_1const__iterator.html#n0">00614</a>                 CNode   *<a class="code" href="classNL3D_1_1CQuadTree_1_1const__iterator.html#n0">_Ptr</a>;
<a name="l00615"></a><a class="code" href="classNL3D_1_1CQuadTree_1_1const__iterator.html#l0">00615</a>                 <font class="keyword">friend</font> <font class="keyword">class </font>CQuadTree&lt;T&gt;;
<a name="l00616"></a><a class="code" href="classNL3D_1_1CQuadTree_1_1const__iterator.html#l1">00616</a>                 <font class="keyword">friend</font> <font class="keyword">class </font><a class="code" href="classNL3D_1_1CQuadTree_1_1const__iterator.html#l1">CIterator</a>;
00617         };
00618 
00619         <font class="comment">// CLASS CIterator</font>
<a name="l00620"></a><a class="code" href="classNL3D_1_1CQuadTree_1_1CIterator.html">00620</a>         <font class="keyword">class </font><a class="code" href="classNL3D_1_1CQuadTree.html#l0">CIterator</a> : <font class="keyword">public</font> const_iterator
00621         {
00622         <font class="keyword">public</font>:
<a name="l00623"></a><a class="code" href="classNL3D_1_1CQuadTree_1_1CIterator.html#a0">00623</a>                 <a class="code" href="classNL3D_1_1CQuadTree_1_1CIterator.html#a0">CIterator</a>()                     {<a class="code" href="classNL3D_1_1CQuadTree_1_1const__iterator.html#n0">_Ptr</a>=NULL;}
<a name="l00624"></a><a class="code" href="classNL3D_1_1CQuadTree_1_1CIterator.html#a1">00624</a>                 <a class="code" href="classNL3D_1_1CQuadTree_1_1CIterator.html#a0">CIterator</a>(CNode *p) : <a class="code" href="classNL3D_1_1CQuadTree_1_1const__iterator.html#a0">const_iterator</a>(p) {}
<a name="l00625"></a><a class="code" href="classNL3D_1_1CQuadTree_1_1CIterator.html#a2">00625</a>                 T&amp;      <a class="code" href="classNL3D_1_1CQuadTree_1_1CIterator.html#a2">operator*</a>()<font class="keyword"> const</font>
00626 <font class="keyword">                        </font>{<font class="keywordflow">return</font> <a class="code" href="classNL3D_1_1CQuadTree_1_1const__iterator.html#n0">_Ptr</a>-&gt;Value; }
00627                 <font class="comment">// Doesn't work...</font>
00628                 <font class="comment">/*T*    operator-&gt;() const</font>
00629 <font class="comment">                        {return (&amp;**this); }*/</font>
<a name="l00630"></a><a class="code" href="classNL3D_1_1CQuadTree_1_1CIterator.html#a3">00630</a>                 <a class="code" href="classNL3D_1_1CQuadTree_1_1CIterator.html#a0">CIterator</a>&amp; <a class="code" href="classNL3D_1_1CQuadTree_1_1CIterator.html#a3">operator++</a>()
00631                         {<a class="code" href="classNL3D_1_1CQuadTree_1_1const__iterator.html#n0">_Ptr</a> = (CNode*)(<a class="code" href="classNL3D_1_1CQuadTree_1_1const__iterator.html#n0">_Ptr</a>-&gt;Next); <font class="keywordflow">return</font> (*this); }
<a name="l00632"></a><a class="code" href="classNL3D_1_1CQuadTree_1_1CIterator.html#a4">00632</a>                 <a class="code" href="classNL3D_1_1CQuadTree_1_1CIterator.html#a0">CIterator</a> <a class="code" href="classNL3D_1_1CQuadTree_1_1CIterator.html#a3">operator++</a>(<font class="keywordtype">int</font>)
00633                         {<a class="code" href="classNL3D_1_1CQuadTree_1_1CIterator.html#a0">CIterator</a> tmp = *<font class="keyword">this</font>; ++*<font class="keyword">this</font>; <font class="keywordflow">return</font> (tmp); }
<a name="l00634"></a><a class="code" href="classNL3D_1_1CQuadTree_1_1CIterator.html#a5">00634</a>                 <a class="code" href="classNL3D_1_1CQuadTree_1_1CIterator.html#a0">CIterator</a>&amp; <a class="code" href="classNL3D_1_1CQuadTree_1_1CIterator.html#a5">operator--</a>()
00635                         {<a class="code" href="classNL3D_1_1CQuadTree_1_1const__iterator.html#n0">_Ptr</a> = (CNode*)(<a class="code" href="classNL3D_1_1CQuadTree_1_1const__iterator.html#n0">_Ptr</a>-&gt;Prev); <font class="keywordflow">return</font> (*this); }
<a name="l00636"></a><a class="code" href="classNL3D_1_1CQuadTree_1_1CIterator.html#a6">00636</a>                 <a class="code" href="classNL3D_1_1CQuadTree_1_1CIterator.html#a0">CIterator</a> <a class="code" href="classNL3D_1_1CQuadTree_1_1CIterator.html#a5">operator--</a>(<font class="keywordtype">int</font>)
00637                         {<a class="code" href="classNL3D_1_1CQuadTree_1_1CIterator.html#a0">CIterator</a> tmp = *<font class="keyword">this</font>; --*<font class="keyword">this</font>; <font class="keywordflow">return</font> (tmp); }
<a name="l00638"></a><a class="code" href="classNL3D_1_1CQuadTree_1_1CIterator.html#a7">00638</a>                 <font class="keywordtype">bool</font> <a class="code" href="classNL3D_1_1CQuadTree_1_1CIterator.html#a7">operator==</a>(<font class="keyword">const</font> <a class="code" href="classNL3D_1_1CQuadTree_1_1const__iterator.html#a0">const_iterator</a>&amp; <a class="code" href="driver__opengl__extension__def_8h.html#a364">x</a>)<font class="keyword"> const</font>
00639 <font class="keyword">                        </font>{<font class="keywordflow">return</font> (<a class="code" href="classNL3D_1_1CQuadTree_1_1const__iterator.html#n0">_Ptr</a> == x._Ptr); }
<a name="l00640"></a><a class="code" href="classNL3D_1_1CQuadTree_1_1CIterator.html#a8">00640</a>                 <font class="keywordtype">bool</font> <a class="code" href="classNL3D_1_1CQuadTree_1_1CIterator.html#a8">operator!=</a>(<font class="keyword">const</font> <a class="code" href="classNL3D_1_1CQuadTree_1_1const__iterator.html#a0">const_iterator</a>&amp; <a class="code" href="driver__opengl__extension__def_8h.html#a364">x</a>)<font class="keyword"> const</font>
00641 <font class="keyword">                        </font>{<font class="keywordflow">return</font> (!(*<font class="keyword">this</font> == x)); }
00642         <font class="keyword">protected</font>:
<a name="l00643"></a><a class="code" href="classNL3D_1_1CQuadTree_1_1CIterator.html#l0">00643</a>                 <font class="keyword">friend</font> <font class="keyword">class </font>CQuadTree&lt;T&gt;;
00644         };
00645 
00646 };
00647 
00648 
00649 
00650 <font class="comment">// ============================================================================================</font>
00651 <font class="comment">// ============================================================================================</font>
00652 <font class="comment">// Template CQuadTree implementation. Construction/Destruction.</font>
00653 <font class="comment">// ============================================================================================</font>
00654 <font class="comment">// ============================================================================================</font>
00655 
00656                 
00657 <font class="comment">// ============================================================================================</font>
<a name="l00658"></a><a class="code" href="classNL3D_1_1CQuadTree.html#a0">00658</a> <font class="keyword">template</font>&lt;<font class="keyword">class</font> T&gt;       CQuadTree&lt;T&gt;::CQuadTree()
00659 {
00660         <a class="code" href="classNL3D_1_1CQuadTree.html#o1">_Selection</a>.<a class="code" href="classNL3D_1_1CQuadTree_1_1CBaseNode.html#m1">Next</a>= NULL;
00661         <a class="code" href="classNL3D_1_1CQuadTree.html#o2">_DepthMax</a>= 0;
00662         <a class="code" href="classNL3D_1_1CQuadTree.html#o0">_QuadRoot</a>.<a class="code" href="classNL3D_1_1CQuadTree_1_1CQuadNode.html#m1">BBoxMin</a>.<a class="code" href="classNLMISC_1_1CVector.html#z332_0">set</a>(-0.5, 0, -0.5);
00663         <a class="code" href="classNL3D_1_1CQuadTree.html#o0">_QuadRoot</a>.<a class="code" href="classNL3D_1_1CQuadTree_1_1CQuadNode.html#m2">BBoxMax</a>.<a class="code" href="classNLMISC_1_1CVector.html#z332_0">set</a>( 0.5, 0,  0.5);
00664         <a class="code" href="classNL3D_1_1CQuadTree.html#o3">_Size</a>=1;
00665 
00666         <a class="code" href="classNL3D_1_1CQuadTree.html#o4">_ChangeBasis</a>.<a class="code" href="classNLMISC_1_1CMatrix.html#z290_0">identity</a>();
00667 }
00668 <font class="comment">// ============================================================================================</font>
<a name="l00669"></a><a class="code" href="classNL3D_1_1CQuadTree.html#z0_0">00669</a> <font class="keyword">template</font>&lt;<font class="keyword">class</font> T&gt;       <font class="keywordtype">void</font> CQuadTree&lt;T&gt;::changeBase(<font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CMatrix.html">NLMISC::CMatrix</a>&amp; base)
00670 {
00671         <a class="code" href="classNL3D_1_1CQuadTree.html#o4">_ChangeBasis</a>=base;
00672 }
00673 <font class="comment">// ============================================================================================</font>
00674 <font class="keyword">template</font>&lt;<font class="keyword">class</font> T&gt;       CQuadTree&lt;T&gt;::~CQuadTree&lt;T&gt;()
00675 {
00676         clear();
00677 }
00678 <font class="comment">// ============================================================================================</font>
<a name="l00679"></a><a class="code" href="classNL3D_1_1CQuadTree.html#z1_0">00679</a> <font class="keyword">template</font>&lt;<font class="keyword">class</font> T&gt;       <font class="keywordtype">void</font>            CQuadTree&lt;T&gt;::clear()
00680 {
00681         <a class="code" href="classNL3D_1_1CQuadTree.html#o0">_QuadRoot</a>.<a class="code" href="classNL3D_1_1CQuadTree_1_1CQuadNode.html#a2">clear</a>();
00682         <a class="code" href="classNL3D_1_1CQuadTree.html#o1">_Selection</a>.<a class="code" href="classNL3D_1_1CQuadTree_1_1CBaseNode.html#m1">Next</a>= NULL;
00683 }
00684 <font class="comment">// ============================================================================================</font>
<a name="l00685"></a><a class="code" href="classNL3D_1_1CQuadTree.html#z0_1">00685</a> <font class="keyword">template</font>&lt;<font class="keyword">class</font> T&gt;       <font class="keywordtype">void</font>            CQuadTree&lt;T&gt;::create(uint DepthMax, <font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a>&amp; center, <font class="keywordtype">float</font> size)
00686 {
00687         <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a> mycenter=<a class="code" href="classNL3D_1_1CQuadTree.html#o4">_ChangeBasis</a>*center;
00688         <a class="code" href="classNL3D_1_1CQuadTree.html#z1_0">clear</a>();
00689         <a class="code" href="classNL3D_1_1CQuadTree.html#o2">_DepthMax</a>= DepthMax;
00690         <a class="code" href="classNL3D_1_1CQuadTree.html#o3">_Size</a>= size;
00691         <a class="code" href="classNL3D_1_1CQuadTree.html#o0">_QuadRoot</a>.<a class="code" href="classNL3D_1_1CQuadTree_1_1CQuadNode.html#m1">BBoxMin</a>= mycenter-<a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a>(size/2, 0 , size/2);
00692         <a class="code" href="classNL3D_1_1CQuadTree.html#o0">_QuadRoot</a>.<a class="code" href="classNL3D_1_1CQuadTree_1_1CQuadNode.html#m2">BBoxMax</a>= mycenter+<a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a>(size/2, 0 , size/2);
00693 }
00694 
00695 
00696 <font class="comment">// ============================================================================================</font>
00697 <font class="comment">// ============================================================================================</font>
00698 <font class="comment">// Template CQuadTree implementation.  Element Insertion/Deletion.</font>
00699 <font class="comment">// ============================================================================================</font>
00700 <font class="comment">// ============================================================================================</font>
00701 
00702 
00703 <font class="comment">// ============================================================================================</font>
<a name="l00704"></a><a class="code" href="classNL3D_1_1CQuadTree.html#z1_1">00704</a> <font class="keyword">template</font>&lt;<font class="keyword">class</font> T&gt;       <font class="keywordtype">void</font>            CQuadTree&lt;T&gt;::eraseAll()
00705 {
00706         <a class="code" href="classNL3D_1_1CQuadTree.html#l0">CIterator</a>                               it;
00707         std::vector&lt;CIterator&gt;  its;
00708 
00709         <font class="comment">// First, make a copy of all elements.</font>
00710         <a class="code" href="classNL3D_1_1CQuadTree.html#z2_1">selectAll</a>();
00711         <font class="keywordflow">for</font>(it= <a class="code" href="classNL3D_1_1CQuadTree.html#z2_6">begin</a>();it!=<a class="code" href="classNL3D_1_1CQuadTree.html#z2_7">end</a>();it++)
00712         {
00713                 its.push_back(it);
00714         }
00715 
00716         <font class="comment">// Then erase them. Must do it OUTSIDE the select loop.</font>
00717         <font class="keywordflow">for</font>(sint i=0;i&lt;(sint)its.size();i++)
00718         {
00719                 <a class="code" href="classNL3D_1_1CQuadTree.html#z1_2">erase</a>(its[i]);
00720         }
00721 }
00722 <font class="comment">// ============================================================================================</font>
<a name="l00723"></a><a class="code" href="classNL3D_1_1CQuadTree.html#z1_2">00723</a> <font class="keyword">template</font>&lt;<font class="keyword">class</font> T&gt;       <font class="keywordtype">void</font>            CQuadTree&lt;T&gt;::erase(CIterator it)
00724 {
00725         CNode   *p=it._Ptr;
00726         <font class="keywordflow">if</font>(p)
00727         {
00728                 <font class="comment">// Clear links.</font>
00729                 p-&gt;clear();
00730 
00731                 <font class="comment">// delete it!!</font>
00732                 <font class="keyword">delete</font> p;
00733         }
00734 }
00735 <font class="comment">// ============================================================================================</font>
<a name="l00736"></a><a class="code" href="classNL3D_1_1CQuadTree.html#z1_3">00736</a> <font class="keyword">template</font>&lt;<font class="keyword">class</font> T&gt;       CQuadTree&lt;T&gt;::CIterator CQuadTree&lt;T&gt;::insert(<font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a> &amp;bboxmin, <font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a> &amp;bboxmax, <font class="keyword">const</font> T &amp;val)
00737 {
00738         <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a> myboxmin2=<a class="code" href="classNL3D_1_1CQuadTree.html#o4">_ChangeBasis</a>*bboxmin;
00739         <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a> myboxmax2=<a class="code" href="classNL3D_1_1CQuadTree.html#o4">_ChangeBasis</a>*bboxmax;
00740         <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a> myboxmin (std::min (myboxmin2.<a class="code" href="classNLMISC_1_1CVector.html#m0">x</a>, myboxmax2.<a class="code" href="classNLMISC_1_1CVector.html#m0">x</a>), std::min (myboxmin2.<a class="code" href="classNLMISC_1_1CVector.html#m1">y</a>, myboxmax2.<a class="code" href="classNLMISC_1_1CVector.html#m1">y</a>), std::min (myboxmin2.<a class="code" href="classNLMISC_1_1CVector.html#m2">z</a>, myboxmax2.<a class="code" href="classNLMISC_1_1CVector.html#m2">z</a>));
00741         <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a> myboxmax (std::max (myboxmin2.<a class="code" href="classNLMISC_1_1CVector.html#m0">x</a>, myboxmax2.<a class="code" href="classNLMISC_1_1CVector.html#m0">x</a>), std::max (myboxmin2.<a class="code" href="classNLMISC_1_1CVector.html#m1">y</a>, myboxmax2.<a class="code" href="classNLMISC_1_1CVector.html#m1">y</a>), std::max (myboxmin2.<a class="code" href="classNLMISC_1_1CVector.html#m2">z</a>, myboxmax2.<a class="code" href="classNLMISC_1_1CVector.html#m2">z</a>));
00742 
00743         CNode   *newNode=<font class="keyword">new</font> CNode(val);
00744 
00745         <a class="code" href="debug_8h.html#a6">nlassert</a>(myboxmax.<a class="code" href="classNLMISC_1_1CVector.html#m0">x</a>&gt;=myboxmin.<a class="code" href="classNLMISC_1_1CVector.html#m0">x</a>);
00746         <a class="code" href="debug_8h.html#a6">nlassert</a>(myboxmax.<a class="code" href="classNLMISC_1_1CVector.html#m1">y</a>&gt;=myboxmin.<a class="code" href="classNLMISC_1_1CVector.html#m1">y</a>);
00747         <a class="code" href="debug_8h.html#a6">nlassert</a>(myboxmax.<a class="code" href="classNLMISC_1_1CVector.html#m2">z</a>&gt;=myboxmin.<a class="code" href="classNLMISC_1_1CVector.html#m2">z</a>);
00748 
00749         <font class="keywordtype">float</font>   boxsize= std::max(myboxmax.<a class="code" href="classNLMISC_1_1CVector.html#m0">x</a>-myboxmin.<a class="code" href="classNLMISC_1_1CVector.html#m0">x</a>, myboxmax.<a class="code" href="classNLMISC_1_1CVector.html#m2">z</a>-myboxmin.<a class="code" href="classNLMISC_1_1CVector.html#m2">z</a> );
00750         <font class="comment">// Prevent float precision problems. Increase bbox size a little.</font>
00751         boxsize*=1.01f;
00752         <font class="comment">// We must find the level quad which is just bigger.</font>
00753         <font class="keywordtype">float</font>   wantsize=<a class="code" href="classNL3D_1_1CQuadTree.html#o3">_Size</a>;
00754         uint    wantdepth=0;
00755         <font class="keywordflow">while</font>(boxsize&lt;wantsize/2 &amp;&amp; wantdepth&lt;<a class="code" href="classNL3D_1_1CQuadTree.html#o2">_DepthMax</a>)
00756         {
00757                 wantsize/=2;
00758                 wantdepth++;
00759         }
00760 
00761         <a class="code" href="classNL3D_1_1CQuadTree.html#o0">_QuadRoot</a>.<a class="code" href="classNL3D_1_1CQuadTree_1_1CQuadNode.html#a9">insert</a>(myboxmin, myboxmax, wantdepth, newNode);
00762 
00763         <font class="keywordflow">return</font> <a class="code" href="classNL3D_1_1CQuadTree.html#l0">CIterator</a>(newNode);
00764 }
00765 
00766 
00767 <font class="comment">// ============================================================================================</font>
00768 <font class="comment">// ============================================================================================</font>
00769 <font class="comment">// Template CQuadTree implementation. Quad Selection, element iteration.</font>
00770 <font class="comment">// ============================================================================================</font>
00771 <font class="comment">// ============================================================================================</font>
00772 
00773 
00774 <font class="comment">// ============================================================================================</font>
<a name="l00775"></a><a class="code" href="classNL3D_1_1CQuadTree.html#z2_0">00775</a> <font class="keyword">template</font>&lt;<font class="keyword">class</font> T&gt;       <font class="keywordtype">void</font>            CQuadTree&lt;T&gt;::clearSelection()
00776 {
00777         CBaseNode       *p;
00778         <font class="keywordflow">while</font>(p=<a class="code" href="classNL3D_1_1CQuadTree.html#o1">_Selection</a>.<a class="code" href="classNL3D_1_1CQuadTree_1_1CBaseNode.html#m1">Next</a>)
00779         {
00780                 <font class="comment">// On retire ce noeud de la selection. Ce qui va modifier implicitement _Selection.Next.</font>
00781                 <font class="keywordflow">if</font>(p-&gt;Prev)     p-&gt;Prev-&gt;Next= p-&gt;Next;
00782                 <font class="keywordflow">if</font>(p-&gt;Next)     p-&gt;Next-&gt;Prev= p-&gt;Prev;
00783                 p-&gt;Prev=p-&gt;Next=NULL;
00784         }
00785 }
00786 <font class="comment">// ============================================================================================</font>
<a name="l00787"></a><a class="code" href="classNL3D_1_1CQuadTree.html#z2_1">00787</a> <font class="keyword">template</font>&lt;<font class="keyword">class</font> T&gt;       <font class="keywordtype">void</font>            CQuadTree&lt;T&gt;::selectAll()
00788 {
00789         <a class="code" href="classNL3D_1_1CQuadTree.html#z2_0">clearSelection</a>();
00790         <a class="code" href="classNL3D_1_1CQuadTree.html#o0">_QuadRoot</a>.<a class="code" href="classNL3D_1_1CQuadTree_1_1CQuadNode.html#a11">selectAll</a>(<a class="code" href="classNL3D_1_1CQuadTree.html#o1">_Selection</a>);
00791 }
00792 <font class="comment">// ============================================================================================</font>
<a name="l00793"></a><a class="code" href="classNL3D_1_1CQuadTree.html#z2_2">00793</a> <font class="keyword">template</font>&lt;<font class="keyword">class</font> T&gt;       <font class="keywordtype">void</font>            CQuadTree&lt;T&gt;::select(<font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a> &amp;bboxmin, <font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a> &amp;bboxmax)
00794 {
00795         <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a> myboxmin2=<a class="code" href="classNL3D_1_1CQuadTree.html#o4">_ChangeBasis</a>*bboxmin;
00796         <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a> myboxmax2=<a class="code" href="classNL3D_1_1CQuadTree.html#o4">_ChangeBasis</a>*bboxmax;
00797         <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a> bboxminCopy (std::min (myboxmin2.<a class="code" href="classNLMISC_1_1CVector.html#m0">x</a>, myboxmax2.<a class="code" href="classNLMISC_1_1CVector.html#m0">x</a>), std::min (myboxmin2.<a class="code" href="classNLMISC_1_1CVector.html#m1">y</a>, myboxmax2.<a class="code" href="classNLMISC_1_1CVector.html#m1">y</a>), std::min (myboxmin2.<a class="code" href="classNLMISC_1_1CVector.html#m2">z</a>, myboxmax2.<a class="code" href="classNLMISC_1_1CVector.html#m2">z</a>));
00798         <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a> bboxmaxCopy (std::max (myboxmin2.<a class="code" href="classNLMISC_1_1CVector.html#m0">x</a>, myboxmax2.<a class="code" href="classNLMISC_1_1CVector.html#m0">x</a>), std::max (myboxmin2.<a class="code" href="classNLMISC_1_1CVector.html#m1">y</a>, myboxmax2.<a class="code" href="classNLMISC_1_1CVector.html#m1">y</a>), std::max (myboxmin2.<a class="code" href="classNLMISC_1_1CVector.html#m2">z</a>, myboxmax2.<a class="code" href="classNLMISC_1_1CVector.html#m2">z</a>));
00799 
00800         <a class="code" href="classNL3D_1_1CQuadTree.html#z2_0">clearSelection</a>();
00801         <a class="code" href="classNL3D_1_1CQuadTree.html#o0">_QuadRoot</a>.<a class="code" href="classNL3D_1_1CQuadTree_1_1CQuadNode.html#a12">select</a>(<a class="code" href="classNL3D_1_1CQuadTree.html#o1">_Selection</a>, bboxminCopy, bboxmaxCopy);
00802 }
00803 <font class="comment">// ============================================================================================</font>
<a name="l00804"></a><a class="code" href="classNL3D_1_1CQuadTree.html#z2_3">00804</a> <font class="keyword">template</font>&lt;<font class="keyword">class</font> T&gt;       <font class="keywordtype">void</font>            CQuadTree&lt;T&gt;::select(<font class="keyword">const</font> std::vector&lt;NLMISC::CPlane&gt; &amp;BVolume)
00805 {
00806         std::vector&lt;NLMISC::CPlane&gt; BVolumeCopy;
00807         BVolumeCopy.resize (BVolume.size());
00808         <font class="keywordflow">for</font> (<font class="keywordtype">int</font> i=0; i&lt;(int)BVolumeCopy.size(); i++)
00809         {
00810                 BVolumeCopy[i]=BVolume[i]*((_ChangeBasis).inverted());
00811         }
00812 
00813         <a class="code" href="classNL3D_1_1CQuadTree.html#z2_0">clearSelection</a>();
00814         <a class="code" href="classNL3D_1_1CQuadTree.html#o0">_QuadRoot</a>.<a class="code" href="classNL3D_1_1CQuadTree_1_1CQuadNode.html#a12">select</a>(<a class="code" href="classNL3D_1_1CQuadTree.html#o1">_Selection</a>, BVolumeCopy);
00815 }
00816 <font class="comment">// ============================================================================================</font>
<a name="l00817"></a><a class="code" href="classNL3D_1_1CQuadTree.html#z2_4">00817</a> <font class="keyword">template</font>&lt;<font class="keyword">class</font> T&gt;       <font class="keywordtype">void</font>            CQuadTree&lt;T&gt;::selectRay(<font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a>&amp; source, <font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a>&amp; dir)
00818 {
00819         <a class="code" href="classNLMISC_1_1CMatrix.html">NLMISC::CMatrix</a> mat;
00820         mat.<a class="code" href="classNLMISC_1_1CMatrix.html#z290_0">identity</a> ();
00821 
00822         <font class="comment">// Set a wrong matrix</font>
00823         <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a> vTmp=dir^((fabs(vTmp*CVector(1,0,0))&gt;0.f)?CVector(1,0,0):CVector(0,1,0));
00824         mat.<a class="code" href="classNLMISC_1_1CMatrix.html#z290_1">setRot</a> (dir, vTmp, dir^vTmp);
00825 
00826         <font class="comment">// Normalize it Yoyo!</font>
00827         mat.<a class="code" href="classNLMISC_1_1CMatrix.html#z293_8">normalize</a> (<a class="code" href="classNLMISC_1_1CMatrix.html#s6s0">NLMISC::CMatrix::XYZ</a>);
00828 
00829         <font class="comment">// Get the planes..</font>
00830         std::vector&lt;NLMISC::CPlane&gt; BVolume;
00831         BVolume.reserve (4);
00832         
00833         <font class="comment">// Setup the planes</font>
00834         <a class="code" href="classNLMISC_1_1CPlane.html">NLMISC::CPlane</a> plane;
00835         plane.<a class="code" href="classNLMISC_1_1CPlane.html#z305_0">make</a> (mat.<a class="code" href="classNLMISC_1_1CMatrix.html#z291_8">getJ</a>(), source);
00836         BVolume.push_back (plane);
00837         plane.<a class="code" href="classNLMISC_1_1CPlane.html#z305_0">make</a> (mat.<a class="code" href="classNLMISC_1_1CMatrix.html#z291_9">getK</a>(), source);
00838         BVolume.push_back (plane);
00839         plane.<a class="code" href="classNLMISC_1_1CPlane.html#z305_0">make</a> (-mat.<a class="code" href="classNLMISC_1_1CMatrix.html#z291_8">getJ</a>(), source);
00840         BVolume.push_back (plane);
00841         plane.<a class="code" href="classNLMISC_1_1CPlane.html#z305_0">make</a> (-mat.<a class="code" href="classNLMISC_1_1CMatrix.html#z291_9">getK</a>(), source);
00842         BVolume.push_back (plane);
00843 
00844         <font class="comment">// Select the nodes</font>
00845         <a class="code" href="classNL3D_1_1CQuadTree.html#z2_2">select</a> (BVolume);
00846 }
00847 <font class="comment">// ============================================================================================</font>
<a name="l00848"></a><a class="code" href="classNL3D_1_1CQuadTree.html#z2_5">00848</a> <font class="keyword">template</font>&lt;<font class="keyword">class</font> T&gt;       <font class="keywordtype">void</font>            CQuadTree&lt;T&gt;::selectSegment(<font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a>&amp; source, <font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a>&amp; dest)
00849 {
00850         <a class="code" href="classNLMISC_1_1CMatrix.html">NLMISC::CMatrix</a> mat;
00851         mat.<a class="code" href="classNLMISC_1_1CMatrix.html#z290_0">identity</a> ();
00852 
00853         <font class="comment">// Set a wrong matrix</font>
00854         CVector dir=dest-source;
00855         <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a> vTmp=dir^((fabs(vTmp*CVector(1,0,0))&gt;0.f)?CVector(1,0,0):CVector(0,1,0));
00856         mat.<a class="code" href="classNLMISC_1_1CMatrix.html#z290_1">setRot</a> (dir, vTmp, dir^vTmp);
00857 
00858         <font class="comment">// Normalize it Yoyo!</font>
00859         mat.<a class="code" href="classNLMISC_1_1CMatrix.html#z293_8">normalize</a> (<a class="code" href="classNLMISC_1_1CMatrix.html#s6s0">NLMISC::CMatrix::XYZ</a>);
00860 
00861         <font class="comment">// Get the planes..</font>
00862         std::vector&lt;NLMISC::CPlane&gt; BVolume;
00863         BVolume.reserve (4);
00864         
00865         <font class="comment">// Setup the planes</font>
00866         <a class="code" href="classNLMISC_1_1CPlane.html">NLMISC::CPlane</a> plane;
00867         plane.<a class="code" href="classNLMISC_1_1CPlane.html#z305_0">make</a> (mat.<a class="code" href="classNLMISC_1_1CMatrix.html#z291_8">getJ</a>(), source);
00868         BVolume.push_back (plane);
00869         plane.<a class="code" href="classNLMISC_1_1CPlane.html#z305_0">make</a> (mat.<a class="code" href="classNLMISC_1_1CMatrix.html#z291_9">getK</a>(), source);
00870         BVolume.push_back (plane);
00871         plane.<a class="code" href="classNLMISC_1_1CPlane.html#z305_0">make</a> (-mat.<a class="code" href="classNLMISC_1_1CMatrix.html#z291_8">getJ</a>(), source);
00872         BVolume.push_back (plane);
00873         plane.<a class="code" href="classNLMISC_1_1CPlane.html#z305_0">make</a> (-mat.<a class="code" href="classNLMISC_1_1CMatrix.html#z291_9">getK</a>(), source);
00874         BVolume.push_back (plane);
00875         plane.<a class="code" href="classNLMISC_1_1CPlane.html#z305_0">make</a> (mat.<a class="code" href="classNLMISC_1_1CMatrix.html#z291_7">getI</a>(), dest);
00876         BVolume.push_back (plane);
00877         plane.<a class="code" href="classNLMISC_1_1CPlane.html#z305_0">make</a> (-mat.<a class="code" href="classNLMISC_1_1CMatrix.html#z291_7">getI</a>(), source);
00878         BVolume.push_back (plane);
00879 
00880         <font class="comment">// Select the nodes</font>
00881         <a class="code" href="classNL3D_1_1CQuadTree.html#z2_2">select</a> (BVolume);
00882 }
00883 <font class="comment">// ============================================================================================</font>
<a name="l00884"></a><a class="code" href="classNL3D_1_1CQuadTree.html#z2_6">00884</a> <font class="keyword">template</font>&lt;<font class="keyword">class</font> T&gt;       CQuadTree&lt;T&gt;::CIterator CQuadTree&lt;T&gt;::begin()
00885 {
00886         <font class="keywordflow">return</font> (CNode*)(<a class="code" href="classNL3D_1_1CQuadTree.html#o1">_Selection</a>.<a class="code" href="classNL3D_1_1CQuadTree_1_1CBaseNode.html#m1">Next</a>);
00887 }
00888 <font class="comment">// ============================================================================================</font>
<a name="l00889"></a><a class="code" href="classNL3D_1_1CQuadTree.html#z2_7">00889</a> <font class="keyword">template</font>&lt;<font class="keyword">class</font> T&gt;       CQuadTree&lt;T&gt;::CIterator CQuadTree&lt;T&gt;::end()
00890 {
00891         <font class="keywordflow">return</font> <a class="code" href="classNL3D_1_1CQuadTree.html#l0">CIterator</a>(NULL);
00892 }
00893 
00894 
00895 }
00896 
00897 <font class="preprocessor">#endif</font>
00898 <font class="preprocessor"></font>
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