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doxygen="_cgi:http://www.nevrax.org/cgi-bin/nel-search.cgi" href="http://www.nevrax.org/cgi-bin/nel-search.cgi">Search</a> </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><<font class="keyword">class</font> T> +<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<T> &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> &point, uint &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<T> <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<CQuadNode> <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 &x0, sint &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&= <a class="code" href="classNL3D_1_1CStaticQuadGrid.html#o2">_Size</a>-1; +00121 y0&= <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><<font class="keyword">class</font> T> +<a name="l00146"></a><a class="code" href="classNL3D_1_1CStaticQuadGrid.html#a0">00146</a> CStaticQuadGrid<T>::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<<<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><<font class="keyword">class</font> T> +<a name="l00156"></a><a class="code" href="classNL3D_1_1CStaticQuadGrid.html#a1">00156</a> CStaticQuadGrid<T>::~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><<font class="keyword">class</font> T> +<a name="l00164"></a><a class="code" href="classNL3D_1_1CStaticQuadGrid.html#z816_1">00164</a> <font class="keywordtype">void</font> CStaticQuadGrid<T>::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<<<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><<font class="keyword">class</font> T> +<a name="l00181"></a><a class="code" href="classNL3D_1_1CStaticQuadGrid.html#z816_0">00181</a> <font class="keywordtype">void</font> CStaticQuadGrid<T>::build(CQuadGrid<T> &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><<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><<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<T>::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><<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><<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 < <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= &<a class="code" href="classNL3D_1_1CStaticQuadGrid.html#o0">_Elements</a>[curDupElt]; +00247 +00248 <font class="comment">// For all elements.</font> +00249 CQuadGrid<T>::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><<font class="keyword">class</font> T> +<a name="l00269"></a><a class="code" href="classNL3D_1_1CStaticQuadGrid.html#z817_0">00269</a> <font class="keyword">const</font> T *CStaticQuadGrid<T>::select(<font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a> &pointIn, uint &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 &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> + +<!-- footer --> +<BR><FONT Size=+5> </FONT> +</TD> +<TD WIDTH=15><IMG SRC=http://www.nevrax.org/inc/img/pixel.gif WIDTH=15 HEIGHT=15 BORDER=0 ALT=""></TD> +</TR> +</TABLE> +</BODY> +</HTML> |