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+<a class="qindex" href="index.html">Main Page</a> &nbsp; <a class="qindex" href="namespaces.html">Namespace List</a> &nbsp; <a class="qindex" href="hierarchy.html">Class Hierarchy</a> &nbsp; <a class="qindex" href="classes.html">Alphabetical List</a> &nbsp; <a class="qindex" href="annotated.html">Compound List</a> &nbsp; <a class="qindex" href="files.html">File List</a> &nbsp; <a class="qindex" href="namespacemembers.html">Namespace Members</a> &nbsp; <a class="qindex" href="functions.html">Compound Members</a> &nbsp; <a class="qindex" href="globals.html">File Members</a> &nbsp; <a class="qindex" href="pages.html">Related Pages</a> &nbsp; <a class="qindexRef" doxygen="_cgi:http://www.nevrax.org/cgi-bin/nel-search.cgi" href="http://www.nevrax.org/cgi-bin/nel-search.cgi">Search</a> &nbsp; </center>
+<hr><h1>static_quad_grid.h</h1><a href="static__quad__grid_8h.html">Go to the documentation of this file.</a><div class="fragment"><pre>00001
+00007 <font class="comment">/* Copyright, 2000-2002 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">#ifndef NL_STATIC_QUAD_GRID_H</font>
+00027 <font class="preprocessor"></font><font class="preprocessor">#define NL_STATIC_QUAD_GRID_H</font>
+00028 <font class="preprocessor"></font>
+00029 <font class="preprocessor">#include "<a class="code" href="types__nl_8h.html">nel/misc/types_nl.h</a>"</font>
+00030 <font class="preprocessor">#include "<a class="code" href="3d_2quad__grid_8h.html">3d/quad_grid.h</a>"</font>
+00031
+00032
+00033 <font class="keyword">namespace </font>NL3D
+00034 {
+00035
+00036
+00037 <font class="comment">// ***************************************************************************</font>
+00050 <font class="comment"></font><font class="keyword">template</font>&lt;<font class="keyword">class</font> T&gt;
+<a name="l00051"></a><a class="code" href="classNL3D_1_1CStaticQuadGrid.html">00051</a> <font class="keyword">class </font>CStaticQuadGrid
+00052 {
+00053 <font class="keyword">public</font>:
+00054
+00056 <a class="code" href="classNL3D_1_1CStaticQuadGrid.html#a0">CStaticQuadGrid</a>();
+00058 <a class="code" href="classNL3D_1_1CStaticQuadGrid.html#a1">~CStaticQuadGrid</a>();
+00059
+00060
+00062
+00063
+00067 <font class="keywordtype">void</font> <a class="code" href="classNL3D_1_1CStaticQuadGrid.html#z816_0">build</a>(CQuadGrid&lt;T&gt; &amp;quadGrid);
+00068
+00071 <font class="keywordtype">void</font> <a class="code" href="classNL3D_1_1CStaticQuadGrid.html#z816_1">clear</a>();
+00072
+00074
+00075
+00077
+00078
+00085 <font class="keyword">const</font> T *<a class="code" href="classNL3D_1_1CStaticQuadGrid.html#z817_0">select</a>(<font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a> &amp;point, uint &amp;numElts);
+00087
+00088
+00089 <font class="comment">// ****************************</font>
+00090 <font class="keyword">private</font>:
+<a name="l00091"></a><a class="code" href="classNL3D_1_1CStaticQuadGrid_1_1CQuadNode.html">00091</a> <font class="keyword">class </font>CQuadNode
+00092 {
+00093 <font class="keyword">public</font>:
+<a name="l00094"></a><a class="code" href="classNL3D_1_1CStaticQuadGrid_1_1CQuadNode.html#m0">00094</a> T *<a class="code" href="classNL3D_1_1CStaticQuadGrid_1_1CQuadNode.html#m0">Nodes</a>;
+<a name="l00095"></a><a class="code" href="classNL3D_1_1CStaticQuadGrid_1_1CQuadNode.html#m1">00095</a> uint <a class="code" href="classNL3D_1_1CStaticQuadGrid_1_1CQuadNode.html#m1">NumNodes</a>;
+00096
+<a name="l00097"></a><a class="code" href="classNL3D_1_1CStaticQuadGrid_1_1CQuadNode.html#a0">00097</a> <a class="code" href="classNL3D_1_1CStaticQuadGrid_1_1CQuadNode.html#a0">CQuadNode</a>()
+00098 {
+00099 <a class="code" href="classNL3D_1_1CStaticQuadGrid_1_1CQuadNode.html#m0">Nodes</a>= NULL; <a class="code" href="classNL3D_1_1CStaticQuadGrid_1_1CQuadNode.html#m1">NumNodes</a>=0;
+00100 }
+00101 };
+00102
+00103 <font class="keyword">private</font>:<font class="comment">// Atttributes.</font>
+00104 <font class="comment">// The big continous array of list of elements.</font>
+<a name="l00105"></a><a class="code" href="classNL3D_1_1CStaticQuadGrid.html#o0">00105</a> std::vector&lt;T&gt; <a class="code" href="classNL3D_1_1CStaticQuadGrid.html#o0">_Elements</a>;
+<a name="l00106"></a><a class="code" href="classNL3D_1_1CStaticQuadGrid.html#o1">00106</a> std::vector&lt;CQuadNode&gt; <a class="code" href="classNL3D_1_1CStaticQuadGrid.html#o1">_Grid</a>;
+<a name="l00107"></a><a class="code" href="classNL3D_1_1CStaticQuadGrid.html#o2">00107</a> sint <a class="code" href="classNL3D_1_1CStaticQuadGrid.html#o2">_Size</a>;
+<a name="l00108"></a><a class="code" href="classNL3D_1_1CStaticQuadGrid.html#o3">00108</a> sint <a class="code" href="classNL3D_1_1CStaticQuadGrid.html#o3">_SizePower</a>;
+<a name="l00109"></a><a class="code" href="classNL3D_1_1CStaticQuadGrid.html#o4">00109</a> <font class="keywordtype">float</font> <a class="code" href="classNL3D_1_1CStaticQuadGrid.html#o4">_EltSize</a>;
+<a name="l00110"></a><a class="code" href="classNL3D_1_1CStaticQuadGrid.html#o5">00110</a> <a class="code" href="classNLMISC_1_1CMatrix.html">NLMISC::CMatrix</a> <a class="code" href="classNL3D_1_1CStaticQuadGrid.html#o5">_ChangeBasis</a>;
+00111
+00112
+00113 <font class="comment">// return the coordinates on the grid of what include the bbox.</font>
+<a name="l00114"></a><a class="code" href="classNL3D_1_1CStaticQuadGrid.html#c0">00114</a> <font class="keywordtype">void</font> <a class="code" href="classNL3D_1_1CStaticQuadGrid.html#c0">selectPoint</a>(CVector point, sint &amp;x0, sint &amp;y0)
+00115 {
+00116 point/= <a class="code" href="classNL3D_1_1CStaticQuadGrid.html#o4">_EltSize</a>;
+00117 x0= (sint)(floor(point.<a class="code" href="classNLMISC_1_1CVector.html#m0">x</a>));
+00118 y0= (sint)(floor(point.<a class="code" href="classNLMISC_1_1CVector.html#m1">y</a>));
+00119
+00120 x0&amp;= <a class="code" href="classNL3D_1_1CStaticQuadGrid.html#o2">_Size</a>-1;
+00121 y0&amp;= <a class="code" href="classNL3D_1_1CStaticQuadGrid.html#o2">_Size</a>-1;
+00122 }
+00123
+00124
+00125 };
+00126
+00127
+00128 <font class="comment">// ***************************************************************************</font>
+00129 <font class="comment">// ***************************************************************************</font>
+00130 <font class="comment">// ***************************************************************************</font>
+00131 <font class="comment">// ***************************************************************************</font>
+00132 <font class="comment">// Template CStaticQuadGrid implementation.</font>
+00133 <font class="comment">// ***************************************************************************</font>
+00134 <font class="comment">// ***************************************************************************</font>
+00135 <font class="comment">// ***************************************************************************</font>
+00136 <font class="comment">// ***************************************************************************</font>
+00137
+00138
+00139 <font class="comment">// ***************************************************************************</font>
+00140 <font class="comment">// Init.</font>
+00141 <font class="comment">// ***************************************************************************</font>
+00142
+00143
+00144 <font class="comment">// ***************************************************************************</font>
+00145 <font class="keyword">template</font>&lt;<font class="keyword">class</font> T&gt;
+<a name="l00146"></a><a class="code" href="classNL3D_1_1CStaticQuadGrid.html#a0">00146</a> CStaticQuadGrid&lt;T&gt;::CStaticQuadGrid()
+00147 {
+00148 <a class="code" href="classNL3D_1_1CStaticQuadGrid.html#o3">_SizePower</a>=4;
+00149 <a class="code" href="classNL3D_1_1CStaticQuadGrid.html#o2">_Size</a>=1&lt;&lt;<a class="code" href="classNL3D_1_1CStaticQuadGrid.html#o3">_SizePower</a>;
+00150 <a class="code" href="classNL3D_1_1CStaticQuadGrid.html#o4">_EltSize</a>=1;
+00151 <a class="code" href="classNL3D_1_1CStaticQuadGrid.html#o5">_ChangeBasis</a>.<a class="code" href="classNLMISC_1_1CMatrix.html#z290_0">identity</a>();
+00152 <a class="code" href="classNL3D_1_1CStaticQuadGrid.html#o1">_Grid</a>.resize(<a class="code" href="classNL3D_1_1CStaticQuadGrid.html#o2">_Size</a> * <a class="code" href="classNL3D_1_1CStaticQuadGrid.html#o2">_Size</a>);
+00153 }
+00154 <font class="comment">// ***************************************************************************</font>
+00155 <font class="keyword">template</font>&lt;<font class="keyword">class</font> T&gt;
+<a name="l00156"></a><a class="code" href="classNL3D_1_1CStaticQuadGrid.html#a1">00156</a> CStaticQuadGrid&lt;T&gt;::~CStaticQuadGrid()
+00157 {
+00158 <a class="code" href="classNL3D_1_1CStaticQuadGrid.html#z816_1">clear</a>();
+00159 }
+00160
+00161
+00162 <font class="comment">// ***************************************************************************</font>
+00163 <font class="keyword">template</font>&lt;<font class="keyword">class</font> T&gt;
+<a name="l00164"></a><a class="code" href="classNL3D_1_1CStaticQuadGrid.html#z816_1">00164</a> <font class="keywordtype">void</font> CStaticQuadGrid&lt;T&gt;::clear()
+00165 {
+00166 <font class="comment">// Just clear all vectors</font>
+00167 <a class="code" href="classNL3D_1_1CStaticQuadGrid.html#o0">_Elements</a>.clear();
+00168 <a class="code" href="classNL3D_1_1CStaticQuadGrid.html#o1">_Grid</a>.clear();
+00169
+00170 <font class="comment">// reset</font>
+00171 <a class="code" href="classNL3D_1_1CStaticQuadGrid.html#o3">_SizePower</a>=4;
+00172 <a class="code" href="classNL3D_1_1CStaticQuadGrid.html#o2">_Size</a>=1&lt;&lt;<a class="code" href="classNL3D_1_1CStaticQuadGrid.html#o3">_SizePower</a>;
+00173 <a class="code" href="classNL3D_1_1CStaticQuadGrid.html#o4">_EltSize</a>=1;
+00174 <a class="code" href="classNL3D_1_1CStaticQuadGrid.html#o5">_ChangeBasis</a>.<a class="code" href="classNLMISC_1_1CMatrix.html#z290_0">identity</a>();
+00175 <a class="code" href="classNL3D_1_1CStaticQuadGrid.html#o1">_Grid</a>.resize(<a class="code" href="classNL3D_1_1CStaticQuadGrid.html#o2">_Size</a> * <a class="code" href="classNL3D_1_1CStaticQuadGrid.html#o2">_Size</a>);
+00176 }
+00177
+00178
+00179 <font class="comment">// ***************************************************************************</font>
+00180 <font class="keyword">template</font>&lt;<font class="keyword">class</font> T&gt;
+<a name="l00181"></a><a class="code" href="classNL3D_1_1CStaticQuadGrid.html#z816_0">00181</a> <font class="keywordtype">void</font> CStaticQuadGrid&lt;T&gt;::build(CQuadGrid&lt;T&gt; &amp;quadGrid)
+00182 {
+00183 <a class="code" href="classNL3D_1_1CStaticQuadGrid.html#z816_1">clear</a>();
+00184 <a class="code" href="namespaceNLMISC.html#a222">contReset</a>(<a class="code" href="classNL3D_1_1CStaticQuadGrid.html#o1">_Grid</a>);
+00185
+00186 <font class="comment">// Copy from quadGrid, and init quads</font>
+00187 <a class="code" href="classNL3D_1_1CStaticQuadGrid.html#o2">_Size</a>= quadGrid.getSize();
+00188 <a class="code" href="classNL3D_1_1CStaticQuadGrid.html#o3">_SizePower</a>= <a class="code" href="namespaceNLMISC.html#a224">getPowerOf2</a>(<a class="code" href="classNL3D_1_1CStaticQuadGrid.html#o2">_Size</a>);
+00189 <a class="code" href="classNL3D_1_1CStaticQuadGrid.html#o4">_EltSize</a>= quadGrid.getEltSize();
+00190 <a class="code" href="classNL3D_1_1CStaticQuadGrid.html#o5">_ChangeBasis</a>= quadGrid.getBasis();
+00191 <a class="code" href="classNL3D_1_1CStaticQuadGrid.html#o1">_Grid</a>.resize(<a class="code" href="classNL3D_1_1CStaticQuadGrid.html#o2">_Size</a> * <a class="code" href="classNL3D_1_1CStaticQuadGrid.html#o2">_Size</a>);
+00192
+00193 <a class="code" href="classNLMISC_1_1CMatrix.html">NLMISC::CMatrix</a> invBasis= <a class="code" href="classNL3D_1_1CStaticQuadGrid.html#o5">_ChangeBasis</a>.<a class="code" href="classNLMISC_1_1CMatrix.html#z293_7">inverted</a>();
+00194
+00195 <font class="comment">// Count number of elements per cell, and total copies of elements</font>
+00196 uint totalDupElt= 0;
+00197 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>;
+00198 <font class="keywordflow">for</font>(<a class="code" href="driver__opengl__extension__def_8h.html#a365">y</a>=0; <a class="code" href="driver__opengl__extension__def_8h.html#a365">y</a>&lt;<a class="code" href="classNL3D_1_1CStaticQuadGrid.html#o2">_Size</a>; <a class="code" href="driver__opengl__extension__def_8h.html#a365">y</a>++)
+00199 {
+00200 <font class="keywordflow">for</font>(<a class="code" href="driver__opengl__extension__def_8h.html#a364">x</a>=0; <a class="code" href="driver__opengl__extension__def_8h.html#a364">x</a>&lt;<a class="code" href="classNL3D_1_1CStaticQuadGrid.html#o2">_Size</a>; <a class="code" href="driver__opengl__extension__def_8h.html#a364">x</a>++)
+00201 {
+00202 <font class="comment">// Select the center of the case</font>
+00203 CVector pos;
+00204 pos.x= (<a class="code" href="driver__opengl__extension__def_8h.html#a364">x</a>+0.5f)*<a class="code" href="classNL3D_1_1CStaticQuadGrid.html#o4">_EltSize</a>;
+00205 pos.y= (<a class="code" href="driver__opengl__extension__def_8h.html#a365">y</a>+0.5f)*<a class="code" href="classNL3D_1_1CStaticQuadGrid.html#o4">_EltSize</a>;
+00206 pos.z= 0.f;
+00207 <font class="comment">// mul by invBasis</font>
+00208 pos= invBasis * pos;
+00209 quadGrid.select(pos, pos);
+00210
+00211 <font class="comment">// Count elements.</font>
+00212 uint n= 0;
+00213 CQuadGrid&lt;T&gt;::CIterator it;
+00214 <font class="keywordflow">for</font>(it= quadGrid.begin(); it!=quadGrid.end(); it++)
+00215 {
+00216 n++;
+00217 }
+00218
+00219 <font class="comment">// store.</font>
+00220 <a class="code" href="classNL3D_1_1CStaticQuadGrid.html#o1">_Grid</a>[<a class="code" href="driver__opengl__extension__def_8h.html#a365">y</a>*<a class="code" href="classNL3D_1_1CStaticQuadGrid.html#o2">_Size</a> + <a class="code" href="driver__opengl__extension__def_8h.html#a364">x</a>].NumNodes= n;
+00221 totalDupElt+= n;
+00222 }
+00223 }
+00224
+00225 <font class="comment">// Resize array copy.</font>
+00226 <a class="code" href="classNL3D_1_1CStaticQuadGrid.html#o0">_Elements</a>.resize(totalDupElt);
+00227
+00228
+00229 <font class="comment">// Then reparse all array, filling _Elements and setup quadNodes ptr.</font>
+00230 uint curDupElt= 0;
+00231 <font class="keywordflow">for</font>(<a class="code" href="driver__opengl__extension__def_8h.html#a365">y</a>=0; <a class="code" href="driver__opengl__extension__def_8h.html#a365">y</a>&lt;<a class="code" href="classNL3D_1_1CStaticQuadGrid.html#o2">_Size</a>; <a class="code" href="driver__opengl__extension__def_8h.html#a365">y</a>++)
+00232 {
+00233 <font class="keywordflow">for</font>(<a class="code" href="driver__opengl__extension__def_8h.html#a364">x</a>=0; <a class="code" href="driver__opengl__extension__def_8h.html#a364">x</a>&lt;<a class="code" href="classNL3D_1_1CStaticQuadGrid.html#o2">_Size</a>; <a class="code" href="driver__opengl__extension__def_8h.html#a364">x</a>++)
+00234 {
+00235 <font class="comment">// Select the center of the case</font>
+00236 CVector pos;
+00237 pos.x= (<a class="code" href="driver__opengl__extension__def_8h.html#a364">x</a>+0.5f)*<a class="code" href="classNL3D_1_1CStaticQuadGrid.html#o4">_EltSize</a>;
+00238 pos.y= (<a class="code" href="driver__opengl__extension__def_8h.html#a365">y</a>+0.5f)*<a class="code" href="classNL3D_1_1CStaticQuadGrid.html#o4">_EltSize</a>;
+00239 pos.z= 0.f;
+00240 <font class="comment">// mul by invBasis</font>
+00241 pos= invBasis * pos;
+00242 quadGrid.select(pos, pos);
+00243
+00244 <font class="comment">// Setup quadNode ptr.</font>
+00245 <font class="keywordflow">if</font> (curDupElt &lt; <a class="code" href="classNL3D_1_1CStaticQuadGrid.html#o0">_Elements</a>.size())
+00246 <a class="code" href="classNL3D_1_1CStaticQuadGrid.html#o1">_Grid</a>[<a class="code" href="driver__opengl__extension__def_8h.html#a365">y</a>*<a class="code" href="classNL3D_1_1CStaticQuadGrid.html#o2">_Size</a> + <a class="code" href="driver__opengl__extension__def_8h.html#a364">x</a>].Nodes= &amp;<a class="code" href="classNL3D_1_1CStaticQuadGrid.html#o0">_Elements</a>[curDupElt];
+00247
+00248 <font class="comment">// For all elements.</font>
+00249 CQuadGrid&lt;T&gt;::CIterator it;
+00250 <font class="keywordflow">for</font>(it= quadGrid.begin(); it!=quadGrid.end(); it++)
+00251 {
+00252 <font class="comment">// Copy elt in array.</font>
+00253 <a class="code" href="classNL3D_1_1CStaticQuadGrid.html#o0">_Elements</a>[curDupElt]= *it;
+00254
+00255 <font class="comment">// Next elt in array.</font>
+00256 curDupElt++;
+00257 }
+00258 }
+00259 }
+00260
+00261
+00262 <font class="comment">// clean up.</font>
+00263 quadGrid.clearSelection();
+00264 }
+00265
+00266
+00267 <font class="comment">// ***************************************************************************</font>
+00268 <font class="keyword">template</font>&lt;<font class="keyword">class</font> T&gt;
+<a name="l00269"></a><a class="code" href="classNL3D_1_1CStaticQuadGrid.html#z817_0">00269</a> <font class="keyword">const</font> T *CStaticQuadGrid&lt;T&gt;::select(<font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a> &amp;pointIn, uint &amp;numElts)
+00270 {
+00271 CVector point= <a class="code" href="classNL3D_1_1CStaticQuadGrid.html#o5">_ChangeBasis</a> * pointIn;
+00272
+00273 <font class="comment">// Select the case.</font>
+00274 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>;
+00275 <a class="code" href="classNL3D_1_1CStaticQuadGrid.html#c0">selectPoint</a>(point, <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>);
+00276
+00277 <font class="comment">// get ref on the selection</font>
+00278 CQuadNode &amp;quadNode= <a class="code" href="classNL3D_1_1CStaticQuadGrid.html#o1">_Grid</a>[<a class="code" href="driver__opengl__extension__def_8h.html#a365">y</a>*<a class="code" href="classNL3D_1_1CStaticQuadGrid.html#o2">_Size</a> + <a class="code" href="driver__opengl__extension__def_8h.html#a364">x</a>];
+00279 numElts= quadNode.NumNodes;
+00280
+00281 <font class="keywordflow">return</font> quadNode.Nodes;
+00282 }
+00283
+00284
+00285 } <font class="comment">// NL3D</font>
+00286
+00287
+00288 <font class="preprocessor">#endif // NL_STATIC_QUAD_GRID_H</font>
+00289 <font class="preprocessor"></font>
+00290 <font class="comment">/* End of static_quad_grid.h */</font>
+</pre></div>
+
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