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<hr><h1>quad_grid_clip_manager.cpp</h1><a href="quad__grid__clip__manager_8cpp.html">Go to the documentation of this file.</a><div class="fragment"><pre>00001 
00007 <font class="comment">/* Copyright, 2001 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 <font class="preprocessor">#include "<a class="code" href="std3d_8h.html">std3d.h</a>"</font>
00027 
00028 <font class="preprocessor">#include "<a class="code" href="quad__grid__clip__manager_8h.html">3d/quad_grid_clip_manager.h</a>"</font>
00029 <font class="preprocessor">#include "<a class="code" href="scene_8h.html">3d/scene.h</a>"</font>
00030 <font class="preprocessor">#include "<a class="code" href="transform__shape_8h.html">3d/transform_shape.h</a>"</font>
00031 <font class="preprocessor">#include "<a class="code" href="clip__trav_8h.html">3d/clip_trav.h</a>"</font>
00032 <font class="preprocessor">#include "<a class="code" href="aabbox_8h.html">nel/misc/aabbox.h</a>"</font>
00033 <font class="preprocessor">#include "<a class="code" href="cluster_8h.html">3d/cluster.h</a>"</font>
00034 <font class="preprocessor">#include "<a class="code" href="skip__model_8h.html">3d/skip_model.h</a>"</font>
00035 
00036 
00037 <font class="keyword">using</font> <font class="keyword">namespace </font>std;
00038 <font class="keyword">using</font> <font class="keyword">namespace </font>NLMISC;
00039 
00040 
00041 <font class="keyword">namespace </font>NL3D 
00042 {
00043 
00044 
00045 <font class="comment">// ***************************************************************************</font>
<a name="l00046"></a><a class="code" href="classNL3D_1_1CQuadGridClipManager.html#a0">00046</a> CQuadGridClipManager::CQuadGridClipManager()
00047 {
00048         <a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o0">_Scene</a>= NULL;
00049         <a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o1">_ClusterSize</a>= 0;
00050         <a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o4">_X</a>= <a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o5">_Y</a>= 0;
00051         <a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o6">_Width</a>= <a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o7">_Height</a>= 0;
00052 }
00053 <font class="comment">// ***************************************************************************</font>
<a name="l00054"></a><a class="code" href="classNL3D_1_1CQuadGridClipManager.html#a1">00054</a> CQuadGridClipManager::~CQuadGridClipManager()
00055 {
00056         <a class="code" href="classNL3D_1_1CQuadGridClipManager.html#a3">reset</a>();
00057 }
00058 
00059 
00060 <font class="comment">// ***************************************************************************</font>
<a name="l00061"></a><a class="code" href="classNL3D_1_1CQuadGridClipManager.html#a2">00061</a> <font class="keywordtype">void</font>                            CQuadGridClipManager::init(CScene *scene, <font class="keywordtype">float</font> clusterSize, std::vector&lt;float&gt; maxDists, <font class="keywordtype">float</font> radiusMax )
00062 {
00063         <font class="comment">// reset first.</font>
00064         <a class="code" href="classNL3D_1_1CQuadGridClipManager.html#a3">reset</a>();
00065 
00066         <font class="comment">// copy params.</font>
00067         <a class="code" href="debug_8h.html#a6">nlassert</a>(clusterSize&gt;0);
00068         <a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o0">_Scene</a>= scene;
00069         <a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o1">_ClusterSize</a>= clusterSize;
00070         <a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o3">_MaxDists</a>= maxDists;
00071         <a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o2">_RadiusMax</a>= radiusMax;
00072 
00073         <font class="comment">// verify growing order.</font>
00074         <font class="keywordtype">float</font>   prec= 0;
00075         <font class="keywordflow">for</font>(uint i=0; i&lt;<a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o3">_MaxDists</a>.size(); i++)
00076         {
00077                 <a class="code" href="debug_8h.html#a6">nlassert</a>(<a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o3">_MaxDists</a>[i] &gt; prec);
00078                 prec=<a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o3">_MaxDists</a>[i];
00079         }
00080 }
00081 
00082 <font class="comment">// ***************************************************************************</font>
<a name="l00083"></a><a class="code" href="classNL3D_1_1CQuadGridClipManager.html#a3">00083</a> <font class="keywordtype">void</font>                            CQuadGridClipManager::reset()
00084 {
00085         <font class="comment">// delete the clusters.</font>
00086         <font class="keywordflow">if</font>(_Scene)
00087         {
00088                 sint    oldX0, oldX1, oldY0, oldY1;
00089 
00090                 oldX0= <a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o4">_X</a>;
00091                 oldX1= <a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o4">_X</a>+<a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o6">_Width</a>;
00092                 oldY0= <a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o5">_Y</a>;
00093                 oldY1= <a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o5">_Y</a>+<a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o7">_Height</a>;
00094 
00095                 <font class="keywordflow">for</font>(sint <a class="code" href="driver__opengl__extension__def_8h.html#a365">y</a>=oldY0; <a class="code" href="driver__opengl__extension__def_8h.html#a365">y</a>&lt;oldY1; <a class="code" href="driver__opengl__extension__def_8h.html#a365">y</a>++)
00096                 {
00097                         <font class="keywordflow">for</font>(sint <a class="code" href="driver__opengl__extension__def_8h.html#a364">x</a>=oldX0; <a class="code" href="driver__opengl__extension__def_8h.html#a364">x</a>&lt;oldX1; <a class="code" href="driver__opengl__extension__def_8h.html#a364">x</a>++)
00098                         {
00099                                 <a class="code" href="classNL3D_1_1CQuadGridClipManager.html#c0">deleteCaseModels</a>((CClipTrav*)<a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o0">_Scene</a>-&gt;getTrav(<a class="code" href="namespaceNL3D.html#a25">ClipTravId</a>), <a class="code" href="driver__opengl__extension__def_8h.html#a364">x</a>,<a class="code" href="driver__opengl__extension__def_8h.html#a365">y</a>);
00100                         }
00101                 }
00102 
00103                 <font class="comment">// clear the grid.</font>
00104                 <a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o8">_QuadGridClusterCases</a>.clear();
00105         }
00106 
00107         <font class="comment">// reset others params.</font>
00108         <a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o3">_MaxDists</a>.clear();
00109         <a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o0">_Scene</a>= NULL;
00110         <a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o1">_ClusterSize</a>= 0;
00111         <a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o4">_X</a>= <a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o5">_Y</a>= 0;
00112         <a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o6">_Width</a>= <a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o7">_Height</a>= 0;
00113 }
00114 
00115 <font class="comment">// ***************************************************************************</font>
<a name="l00116"></a><a class="code" href="classNL3D_1_1CQuadGridClipManager.html#a4">00116</a> <font class="keywordtype">void</font>                            CQuadGridClipManager::updateClustersFromCamera(CClipTrav *pClipTrav, <font class="keyword">const</font> CVector &amp;camPos)
00117 {
00118         sint    newX0, newX1, newY0, newY1;
00119         sint    oldX0, oldX1, oldY0, oldY1;
00120 
00121         oldX0= <a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o4">_X</a>;
00122         oldX1= <a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o4">_X</a>+<a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o6">_Width</a>;
00123         oldY0= <a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o5">_Y</a>;
00124         oldY1= <a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o5">_Y</a>+<a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o7">_Height</a>;
00125 
00126         <font class="comment">// compute the new square of clusters to build.</font>
00127         newX0= (sint)floor( (camPos.x - <a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o2">_RadiusMax</a>) / <a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o1">_ClusterSize</a>);
00128         newX1= (sint)ceil( (camPos.x + <a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o2">_RadiusMax</a>) / <a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o1">_ClusterSize</a>);
00129         newY0= (sint)floor( (camPos.y - <a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o2">_RadiusMax</a>) / <a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o1">_ClusterSize</a>);
00130         newY1= (sint)ceil( (camPos.y + <a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o2">_RadiusMax</a>) / <a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o1">_ClusterSize</a>);
00131 
00132         <font class="comment">// keep an histeresis of one cluster: do not delete "young" clusters created before.</font>
00133         <font class="keywordflow">if</font>(newX0&gt;= oldX0+1)             <font class="comment">// NB: if newX0==oldX0+1, then newX0= _X =&gt; no change.</font>
00134                 newX0--;        
00135         <font class="keywordflow">if</font>(newY0&gt;= oldY0+1)             <font class="comment">// same reasoning.</font>
00136                 newY0--;        
00137         <font class="keywordflow">if</font>(newX1&lt;= oldX1-1)             <font class="comment">// NB: if newX1==oldX1-1, then newX1= oldX1 =&gt; no change.</font>
00138                 newX1++;        
00139         <font class="keywordflow">if</font>(newY1&lt;= oldY1-1)             <font class="comment">// same reasoning.</font>
00140                 newY1++;
00141 
00142         <font class="comment">// Have we got to update the array.</font>
00143         <font class="keywordflow">if</font>(newX0!=oldX0 || newX1!=oldX1 || newY0!=oldY0 || newY1!=oldY1)
00144         {
00145                 sint    <a class="code" href="driver__opengl__extension__def_8h.html#a364">x</a>,<a class="code" href="driver__opengl__extension__def_8h.html#a365">y</a>;
00146 
00147                 <font class="comment">// delete olds models.</font>
00148                 <font class="comment">// simple: test all cases</font>
00149                 <font class="keywordflow">for</font>(<a class="code" href="driver__opengl__extension__def_8h.html#a365">y</a>=oldY0; <a class="code" href="driver__opengl__extension__def_8h.html#a365">y</a>&lt;oldY1; <a class="code" href="driver__opengl__extension__def_8h.html#a365">y</a>++)
00150                 {
00151                         <font class="keywordflow">for</font>(<a class="code" href="driver__opengl__extension__def_8h.html#a364">x</a>=oldX0; <a class="code" href="driver__opengl__extension__def_8h.html#a364">x</a>&lt;oldX1; <a class="code" href="driver__opengl__extension__def_8h.html#a364">x</a>++)
00152                         {
00153                                 <font class="comment">// if out the new square?</font>
00154                                 <font class="keywordflow">if</font>(x&lt;newX0 || x&gt;=newX1 || y&lt;newY0 || y&gt;=newY1)
00155                                         <a class="code" href="classNL3D_1_1CQuadGridClipManager.html#c0">deleteCaseModels</a>(pClipTrav, <a class="code" href="driver__opengl__extension__def_8h.html#a364">x</a>,<a class="code" href="driver__opengl__extension__def_8h.html#a365">y</a>);
00156                         }
00157                 }
00158 
00159                 <font class="comment">// build new array</font>
00160                 <font class="comment">// satic for alloc optimisation.</font>
00161                 <font class="keyword">static</font>  vector&lt;CQuadGridClusterCase&gt;    newQuadGridClusterCases;
00162                 sint    newWidth= newX1-newX0;
00163                 sint    newHeight= newY1-newY0;
00164                 newQuadGridClusterCases.resize(newWidth * newHeight);
00165                 <font class="comment">// simple: test all cases</font>
00166                 <font class="keywordflow">for</font>(<a class="code" href="driver__opengl__extension__def_8h.html#a365">y</a>=newY0; <a class="code" href="driver__opengl__extension__def_8h.html#a365">y</a>&lt;newY1; <a class="code" href="driver__opengl__extension__def_8h.html#a365">y</a>++)
00167                 {
00168                         <font class="keywordflow">for</font>(<a class="code" href="driver__opengl__extension__def_8h.html#a364">x</a>=newX0; <a class="code" href="driver__opengl__extension__def_8h.html#a364">x</a>&lt;newX1; <a class="code" href="driver__opengl__extension__def_8h.html#a364">x</a>++)
00169                         {
00170                                 CQuadGridClusterCase    &amp;newCase= newQuadGridClusterCases[ (<a class="code" href="driver__opengl__extension__def_8h.html#a365">y</a>-newY0)*newWidth + (<a class="code" href="driver__opengl__extension__def_8h.html#a364">x</a>-newX0) ];
00171 
00172                                 <font class="comment">// if out the old square?</font>
00173                                 <font class="keywordflow">if</font>(x&lt;oldX0 || x&gt;=oldX1 || y&lt;oldY0 || y&gt;=oldY1)
00174                                 {
00175                                         <font class="comment">// build new case. Clusters are empty.</font>
00176                                         <a class="code" href="classNL3D_1_1CQuadGridClipManager.html#c1">newCaseModels</a>(newCase);
00177                                 }
00178                                 <font class="keywordflow">else</font>
00179                                 {
00180                                         <font class="comment">// copy from old.</font>
00181                                         CQuadGridClusterCase    &amp;oldCase= <a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o8">_QuadGridClusterCases</a>[ (<a class="code" href="driver__opengl__extension__def_8h.html#a365">y</a>-<a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o5">_Y</a>)*<a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o6">_Width</a> + (<a class="code" href="driver__opengl__extension__def_8h.html#a364">x</a>-<a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o4">_X</a>) ];
00182 
00183                                         newCase= oldCase;
00184                                 }
00185                         }
00186                 }
00187 
00188                 <font class="comment">// just copy from new.</font>
00189                 <a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o8">_QuadGridClusterCases</a>= newQuadGridClusterCases;
00190                 <a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o4">_X</a>= newX0;
00191                 <a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o5">_Y</a>= newY0;
00192                 <a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o6">_Width</a>= newWidth;
00193                 <a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o7">_Height</a>= newHeight;
00194         }
00195 }
00196 
00197 
00198 <font class="comment">// ***************************************************************************</font>
<a name="l00199"></a><a class="code" href="classNL3D_1_1CQuadGridClipManager.html#a5">00199</a> <font class="keywordtype">bool</font>                            CQuadGridClipManager::linkModel(CTransformShape *pTfmShp, CClipTrav *pClipTrav)
00200 {
00201         <font class="comment">// use the position to get the cluster to use.</font>
00202         CAABBox box;
00203         pTfmShp-&gt;getAABBox (box);
00204         <font class="keywordtype">float</font>   distModelMax = pTfmShp-&gt;getDistMax();
00205 
00206         <font class="comment">// Transform the box in the world</font>
00207         <font class="keyword">const</font> CMatrix &amp;wm = pTfmShp-&gt;getWorldMatrix();
00208         <font class="comment">// compute center in world.</font>
00209         CVector cLocal  = box.getCenter();
00210         CVector cWorld  = wm * cLocal;
00211         <font class="comment">// prepare bbox.</font>
00212         CAABBox worldBBox;
00213         worldBBox.setCenter(cWorld);
00214         CVector hs = box.getHalfSize();
00215 
00216         <font class="comment">// For 8 corners.</font>
00217         <font class="keywordflow">for</font>(uint i=0;i&lt;8;i++)
00218         {
00219                 CVector         corner;
00220                 <font class="comment">// compute the corner of the bbox.</font>
00221                 corner= cLocal;
00222                 <font class="keywordflow">if</font>(i&amp;1)         corner.x+=hs.x;
00223                 <font class="keywordflow">else</font>            corner.x-=hs.x;
00224                 <font class="keywordflow">if</font>((i/2)&amp;1)     corner.y+=hs.y;
00225                 <font class="keywordflow">else</font>            corner.y-=hs.y;
00226                 <font class="keywordflow">if</font>((i/4)&amp;1)     corner.z+=hs.z;
00227                 <font class="keywordflow">else</font>            corner.z-=hs.z;
00228                 <font class="comment">// Transform the corner in world.</font>
00229                 corner = wm * corner;
00230                 <font class="comment">// Extend the bbox with it.</font>
00231                 worldBBox.extend(corner);
00232         }
00233 
00234 
00235         <font class="comment">// Position in the grid.</font>
00236         sint    <a class="code" href="driver__opengl__extension__def_8h.html#a364">x</a>,<a class="code" href="driver__opengl__extension__def_8h.html#a365">y</a>;
00237         <a class="code" href="driver__opengl__extension__def_8h.html#a364">x</a>= (sint)floor( cWorld.x / <a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o1">_ClusterSize</a>);
00238         <a class="code" href="driver__opengl__extension__def_8h.html#a365">y</a>= (sint)floor( cWorld.y / <a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o1">_ClusterSize</a>);
00239 
00240         <font class="comment">// verify if IN the current grid of clusters created.</font>
00241         <font class="keywordflow">if</font>( <a class="code" href="driver__opengl__extension__def_8h.html#a364">x</a>&gt;=<a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o4">_X</a> &amp;&amp; x&lt;_X+_Width &amp;&amp; y&gt;=<a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o5">_Y</a> &amp;&amp; <a class="code" href="driver__opengl__extension__def_8h.html#a365">y</a>&lt;<a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o5">_Y</a>+<a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o7">_Height</a> )
00242         {
00243                 CQuadGridClusterCase    &amp;clusterCase= <a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o8">_QuadGridClusterCases</a>[ (<a class="code" href="driver__opengl__extension__def_8h.html#a365">y</a>-<a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o5">_Y</a>)*<a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o6">_Width</a> + (<a class="code" href="driver__opengl__extension__def_8h.html#a364">x</a>-<a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o4">_X</a>) ];
00244                 <a class="code" href="debug_8h.html#a6">nlassert</a>( <a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o3">_MaxDists</a>.size()+1 == clusterCase.QuadGridClipClusters.size() );
00245 
00246                 <font class="comment">// search the best cluster.</font>
00247                 uint    bestCluster;
00248                 <font class="keywordflow">if</font>(distModelMax==-1)
00249                 {
00250                         bestCluster= clusterCase.QuadGridClipClusters.size()-1;
00251                 }
00252                 <font class="keywordflow">else</font>
00253                 {
00254                         <a class="code" href="debug_8h.html#a6">nlassert</a>(distModelMax&gt;=0);
00255                         <font class="comment">// search in which cluster against we must test.</font>
00256                         uint i;
00257                         <font class="keywordflow">for</font>(i=0; i&lt;clusterCase.QuadGridClipClusters.size()-1;i++)
00258                         {
00259                                 <font class="keywordflow">if</font>(distModelMax&lt;=<a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o3">_MaxDists</a>[i])
00260                                         <font class="keywordflow">break</font>;
00261                         }
00262                         <font class="comment">// NB: interval [?? , +oo[,  if i==clusterCase.QuadGridClipClusters.size()-1;</font>
00263                         bestCluster= i;
00264                 }
00265 
00266                 <font class="comment">// extend the bbox of this cluster.</font>
00267                 clusterCase.QuadGridClipClusters[bestCluster]-&gt;extendCluster(worldBBox);
00268                 <font class="comment">// link the model to this cluster.</font>
00269                 pClipTrav-&gt;link(clusterCase.QuadGridClipClusters[bestCluster], pTfmShp);
00270 
00271 
00272                 <font class="keywordflow">return</font> <font class="keyword">true</font>;
00273         }
00274         <font class="keywordflow">else</font>
00275         {
00276                 <font class="keywordflow">return</font> <font class="keyword">false</font>;
00277         }
00278 
00279 }
00280 
00281 
00282 <font class="comment">// ***************************************************************************</font>
<a name="l00283"></a><a class="code" href="classNL3D_1_1CQuadGridClipManager.html#c0">00283</a> <font class="keywordtype">void</font>                            CQuadGridClipManager::deleteCaseModels(CClipTrav *pClipTrav, sint <a class="code" href="driver__opengl__extension__def_8h.html#a364">x</a>, sint <a class="code" href="driver__opengl__extension__def_8h.html#a365">y</a>)
00284 {
00285         <a class="code" href="debug_8h.html#a6">nlassert</a>(<a class="code" href="driver__opengl__extension__def_8h.html#a364">x</a>&gt;=<a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o4">_X</a> &amp;&amp; x&lt;_X+_Width &amp;&amp; y&gt;=<a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o5">_Y</a> &amp;&amp; <a class="code" href="driver__opengl__extension__def_8h.html#a365">y</a>&lt;<a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o5">_Y</a>+<a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o7">_Height</a>);
00286 
00287         CQuadGridClusterCase    &amp;clusterCase= <a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o8">_QuadGridClusterCases</a>[ (<a class="code" href="driver__opengl__extension__def_8h.html#a365">y</a>-<a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o5">_Y</a>)*<a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o6">_Width</a> + (<a class="code" href="driver__opengl__extension__def_8h.html#a364">x</a>-<a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o4">_X</a>) ];
00288         <font class="keywordflow">for</font>(uint j=0; j&lt;clusterCase.QuadGridClipClusters.size(); j++)
00289         {
00290                 CQuadGridClipCluster    *cluster= clusterCase.QuadGridClipClusters[j];
00291 
00292                 <font class="comment">// first, unlink all sons from cluster, and link thems to RootCluster.</font>
00293                 IModel  *son= pClipTrav-&gt;getFirstChild(cluster);
00294                 <font class="keywordflow">while</font>( son != NULL )
00295                 {
00296                         <font class="comment">// unlink from us.</font>
00297                         pClipTrav-&gt;unlink(cluster, son);
00298                         <font class="comment">// link to the rootCluster</font>
00299                         pClipTrav-&gt;link(pClipTrav-&gt;RootCluster, son);
00300 
00301                         <font class="comment">// next son.</font>
00302                         son= pClipTrav-&gt;getFirstChild(cluster);
00303                 }
00304 
00305                 <font class="comment">// delete the cluster.</font>
00306                 <a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o0">_Scene</a>-&gt;deleteModel(cluster);
00307         }
00308 
00309         <font class="comment">// NB: do not delete array for alloc/free optimisation.</font>
00310 }
00311 
00312 
00313 <font class="comment">// ***************************************************************************</font>
<a name="l00314"></a><a class="code" href="classNL3D_1_1CQuadGridClipManager.html#c1">00314</a> <font class="keywordtype">void</font>                            CQuadGridClipManager::newCaseModels(CQuadGridClusterCase &amp;clusterCase)
00315 {
00316         <font class="comment">// resize of the number of bbox per distance.</font>
00317         clusterCase.QuadGridClipClusters.resize(<a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o3">_MaxDists</a>.size()+1);
00318 
00319         <font class="comment">// create clusters.</font>
00320         <font class="keywordflow">for</font>(uint i=0; i&lt;clusterCase.QuadGridClipClusters.size(); i++)
00321         {
00322                 <font class="comment">// create the cluster.</font>
00323                 CQuadGridClipCluster    *cluster= (CQuadGridClipCluster*)<a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o0">_Scene</a>-&gt;createModel(<a class="code" href="namespaceNL3D.html#a224">QuadGridClipClusterId</a>);
00324                 clusterCase.QuadGridClipClusters[i]= cluster;
00325                 <font class="comment">// disable it from HRC</font>
00326                 CHrcTrav        *hrcTrav= (CHrcTrav*)<a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o0">_Scene</a>-&gt;getTrav(<a class="code" href="namespaceNL3D.html#a41">HrcTravId</a>);
00327                 hrcTrav-&gt;link(<a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o0">_Scene</a>-&gt;getSkipModelRoot(), cluster);
00328                 <font class="comment">// NB: disabled from validation in CQuadGridClipCluster::update()</font>
00329                 <font class="comment">// Hence it will be never traversed but in ClipTrav.</font>
00330 
00331                 <font class="comment">// link it in RootCluster, so it may be clipped in city etc...</font>
00332                 CClipTrav       *clipTrav= (CClipTrav*)<a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o0">_Scene</a>-&gt;getTrav(<a class="code" href="namespaceNL3D.html#a25">ClipTravId</a>);
00333                 clipTrav-&gt;unlink(NULL, cluster);
00334                 clipTrav-&gt;link(clipTrav-&gt;RootCluster, cluster);
00335 
00336 
00337                 <font class="comment">// init distMax</font>
00338                 <font class="keywordflow">if</font>(i&lt;<a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o3">_MaxDists</a>.size())
00339                         clusterCase.QuadGridClipClusters[i]-&gt;setDistMax(<a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o3">_MaxDists</a>[i]);
00340                 <font class="keywordflow">else</font>
00341                         clusterCase.QuadGridClipClusters[i]-&gt;setDistMax(-1);
00342         }
00343 }
00344 
00345 
00346 } <font class="comment">// NL3D</font>
</pre></div>

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