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<hr><h1>quad_grid.h</h1><a href="3d_2quad__grid_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 <font class="preprocessor">#ifndef NL_QUAD_GRID_H</font>
00027 <font class="preprocessor"></font><font class="preprocessor">#define NL_QUAD_GRID_H</font>
00028 <font class="preprocessor"></font>
00029 <font class="preprocessor">#include "<a class="code" href="debug_8h.html">nel/misc/debug.h</a>"</font>
00030 <font class="preprocessor">#include "<a class="code" href="vector_8h.html">nel/misc/vector.h</a>"</font>
00031 <font class="preprocessor">#include "<a class="code" href="plane_8h.html">nel/misc/plane.h</a>"</font>
00032 <font class="preprocessor">#include "<a class="code" href="matrix_8h.html">nel/misc/matrix.h</a>"</font>
00033 <font class="preprocessor">#include "<a class="code" href="stl__block__list_8h.html">nel/misc/stl_block_list.h</a>"</font>
00034 <font class="preprocessor">#include "<a class="code" href="common_8h.html">nel/misc/common.h</a>"</font>
00035 <font class="preprocessor">#include &lt;vector&gt;</font>
00036 
00037 
00038 <font class="keyword">namespace </font>NL3D 
00039 {
00040 
00041 
00042 <font class="keyword">using</font> <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a>;
00043 
00044 <font class="comment">// ***************************************************************************</font>
00045 <font class="comment">// Default Size of a block for allocation of elements and elements node list in the grid.</font>
<a name="l00046"></a><a class="code" href="3d_2quad__grid_8h.html#a0">00046</a> <font class="preprocessor">#define NL3D_QUAD_GRID_ALLOC_BLOCKSIZE  16</font>
00047 <font class="preprocessor"></font>
00048 
00049 <font class="comment">// ***************************************************************************</font>
<a name="l00076"></a><a class="code" href="classNL3D_1_1CQuadGrid.html">00076</a> <font class="comment"></font><font class="keyword">template</font>&lt;<font class="keyword">class</font> T&gt;       <font class="keyword">class   </font>CQuadGrid
00077 {
00078 <font class="keyword">public</font>:
00080         <font class="keyword">class   </font><a class="code" href="classNL3D_1_1CQuadGrid.html#l0">CIterator</a>;
<a name="l00081"></a><a class="code" href="classNL3D_1_1CQuadGrid.html#l0">00081</a>         <font class="keyword">friend</font> <font class="keyword">class    </font><a class="code" href="classNL3D_1_1CQuadGrid.html#l0">CIterator</a>;
00082 
00083 <font class="keyword">public</font>:
00084 
00086         <a class="code" href="classNL3D_1_1CQuadGrid.html#a0">CQuadGrid</a>(uint memoryBlockSize= <a class="code" href="3d_2quad__grid_8h.html#a0">NL3D_QUAD_GRID_ALLOC_BLOCKSIZE</a>);
00087 
00089         <a class="code" href="classNL3D_1_1CQuadGrid.html#a1">~CQuadGrid</a>();
00090 
00092 
00093 
00108         <font class="keywordtype">void</font>                    <a class="code" href="classNL3D_1_1CQuadGrid.html#z741_0">changeBase</a>(<font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CMatrix.html">NLMISC::CMatrix</a>&amp; base);
00109 
00116         <font class="keywordtype">void</font>                    <a class="code" href="classNL3D_1_1CQuadGrid.html#z741_1">create</a>(uint size, <font class="keywordtype">float</font> eltSize);
00117 
00118         <font class="comment">// Get creation parameters.</font>
<a name="l00119"></a><a class="code" href="classNL3D_1_1CQuadGrid.html#z741_2">00119</a>         <font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CMatrix.html">NLMISC::CMatrix</a>   &amp;<a class="code" href="classNL3D_1_1CQuadGrid.html#z741_2">getBasis</a>()<font class="keyword"> const </font>{<font class="keywordflow">return</font> <a class="code" href="classNL3D_1_1CQuadGrid.html#o4">_ChangeBasis</a>;}
<a name="l00120"></a><a class="code" href="classNL3D_1_1CQuadGrid.html#z741_3">00120</a>         uint                                    <a class="code" href="classNL3D_1_1CQuadGrid.html#z741_3">getSize</a>()<font class="keyword"> const </font>{<font class="keywordflow">return</font> <a class="code" href="classNL3D_1_1CQuadGrid.html#o1">_Size</a>;}
<a name="l00121"></a><a class="code" href="classNL3D_1_1CQuadGrid.html#z741_4">00121</a>         <font class="keywordtype">float</font>                                   <a class="code" href="classNL3D_1_1CQuadGrid.html#z741_4">getEltSize</a>()<font class="keyword"> const </font>{<font class="keywordflow">return</font> <a class="code" href="classNL3D_1_1CQuadGrid.html#o3">_EltSize</a>;}
00123 
00125 
00126 
00129         <font class="keywordtype">void</font>                    <a class="code" href="classNL3D_1_1CQuadGrid.html#z742_0">clear</a>();
00130 
00138         <a class="code" href="classNL3D_1_1CQuadGrid.html#l0">CIterator</a>               <a class="code" href="classNL3D_1_1CQuadGrid.html#z742_1">erase</a>(<a class="code" href="classNL3D_1_1CQuadGrid.html#l0">CIterator</a> it);
00139 
00165         <a class="code" href="classNL3D_1_1CQuadGrid.html#l0">CIterator</a>               <a class="code" href="classNL3D_1_1CQuadGrid.html#z742_2">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 
00174         <font class="keywordtype">void</font>                    <a class="code" href="classNL3D_1_1CQuadGrid.html#z743_0">clearSelection</a>();
00175 
00179         <font class="keywordtype">void</font>                    <a class="code" href="classNL3D_1_1CQuadGrid.html#z743_1">selectAll</a>();
00180 
00187         <font class="keywordtype">void</font>                    <a class="code" href="classNL3D_1_1CQuadGrid.html#z743_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);
00188 
00189 
00193         <a class="code" href="classNL3D_1_1CQuadGrid.html#l0">CIterator</a>               <a class="code" href="classNL3D_1_1CQuadGrid.html#z743_3">begin</a>();
00194 
00198         <a class="code" href="classNL3D_1_1CQuadGrid.html#l0">CIterator</a>               <a class="code" href="classNL3D_1_1CQuadGrid.html#z743_4">end</a>();
00200 
00201 
00202 <font class="comment">// =================</font>
00203 <font class="comment">// =================</font>
00204 <font class="comment">// IMPLEMENTATION.</font>
00205 <font class="comment">// =================</font>
00206 <font class="comment">// =================</font>
00207 <font class="keyword">private</font>:<font class="comment">// Classes.</font>
00208 
<a name="l00209"></a><a class="code" href="classNL3D_1_1CQuadGrid_1_1CBaseNode.html">00209</a>         <font class="keyword">class   </font>CBaseNode
00210         {
00211         <font class="keyword">public</font>:
<a name="l00212"></a><a class="code" href="classNL3D_1_1CQuadGrid_1_1CBaseNode.html#m0">00212</a>                 <a class="code" href="classNL3D_1_1CQuadGrid_1_1CBaseNode.html#a0">CBaseNode</a>       *<a class="code" href="classNL3D_1_1CQuadGrid_1_1CBaseNode.html#m0">Prev</a>,*<a class="code" href="classNL3D_1_1CQuadGrid_1_1CBaseNode.html#m1">Next</a>;    <font class="comment">// For selection.</font>
<a name="l00213"></a><a class="code" href="classNL3D_1_1CQuadGrid_1_1CBaseNode.html#m2">00213</a>                 <font class="keywordtype">bool</font>            <a class="code" href="classNL3D_1_1CQuadGrid_1_1CBaseNode.html#m2">Selected</a>;               <font class="comment">// true if owned by _SelectedList, or by _UnSelectedList.</font>
<a name="l00214"></a><a class="code" href="classNL3D_1_1CQuadGrid_1_1CBaseNode.html#a0">00214</a>                 <a class="code" href="classNL3D_1_1CQuadGrid_1_1CBaseNode.html#a0">CBaseNode</a>() {Prev= Next= NULL;}
00215         };
00216 
<a name="l00217"></a><a class="code" href="classNL3D_1_1CQuadGrid_1_1CNode.html">00217</a>         <font class="keyword">class   </font>CNode : <font class="keyword">public</font> CBaseNode
00218         {
00219         <font class="keyword">public</font>:
<a name="l00220"></a><a class="code" href="classNL3D_1_1CQuadGrid_1_1CNode.html#m0">00220</a>                 T               <a class="code" href="classNL3D_1_1CQuadGrid_1_1CNode.html#m0">Elt</a>;
<a name="l00221"></a><a class="code" href="classNL3D_1_1CQuadGrid_1_1CNode.html#m2">00221</a>                 uint16  <a class="code" href="classNL3D_1_1CQuadGrid_1_1CNode.html#m1">x0</a>,<a class="code" href="classNL3D_1_1CQuadGrid_1_1CNode.html#m2">x1</a>;                  <font class="comment">// The location of the elt in the grid. Used for erase().</font>
<a name="l00222"></a><a class="code" href="classNL3D_1_1CQuadGrid_1_1CNode.html#m4">00222</a>                 uint16  <a class="code" href="classNL3D_1_1CQuadGrid_1_1CNode.html#m3">y0</a>,<a class="code" href="classNL3D_1_1CQuadGrid_1_1CNode.html#m4">y1</a>;
00223         };
00224 
<a name="l00225"></a><a class="code" href="classNL3D_1_1CQuadGrid_1_1CQuadNode.html">00225</a>         <font class="keyword">class   </font>CQuadNode
00226         {
00227         <font class="keyword">public</font>:
<a name="l00228"></a><a class="code" href="classNL3D_1_1CQuadGrid_1_1CQuadNode.html#m0">00228</a>                 <a class="code" href="classNLMISC_1_1CSTLBlockList.html">NLMISC::CSTLBlockList&lt;CNode*&gt;</a>   <a class="code" href="classNL3D_1_1CQuadGrid_1_1CQuadNode.html#m0">Nodes</a>;
00229 
<a name="l00230"></a><a class="code" href="classNL3D_1_1CQuadGrid_1_1CQuadNode.html#a0">00230</a>                 <a class="code" href="classNL3D_1_1CQuadGrid_1_1CQuadNode.html#a0">CQuadNode</a>(<a class="code" href="classNLMISC_1_1CBlockMemory.html">NLMISC::CBlockMemory&lt;CNode*, false&gt;</a> *bm) : Nodes(bm) {}
00231         };
00232 
00233 <font class="keyword">private</font>:<font class="comment">// Atttributes.</font>
<a name="l00234"></a><a class="code" href="classNL3D_1_1CQuadGrid.html#o0">00234</a>         std::vector&lt;CQuadNode&gt;  <a class="code" href="classNL3D_1_1CQuadGrid.html#o0">_Grid</a>;
<a name="l00235"></a><a class="code" href="classNL3D_1_1CQuadGrid.html#o1">00235</a>         sint                            <a class="code" href="classNL3D_1_1CQuadGrid.html#o1">_Size</a>;
<a name="l00236"></a><a class="code" href="classNL3D_1_1CQuadGrid.html#o2">00236</a>         sint                            <a class="code" href="classNL3D_1_1CQuadGrid.html#o2">_SizePower</a>;
<a name="l00237"></a><a class="code" href="classNL3D_1_1CQuadGrid.html#o3">00237</a>         <font class="keywordtype">float</font>                           <a class="code" href="classNL3D_1_1CQuadGrid.html#o3">_EltSize</a>;
<a name="l00238"></a><a class="code" href="classNL3D_1_1CQuadGrid.html#o4">00238</a>         <a class="code" href="classNLMISC_1_1CMatrix.html">NLMISC::CMatrix</a>         <a class="code" href="classNL3D_1_1CQuadGrid.html#o4">_ChangeBasis</a>;
00239         <font class="comment">// Selection. Elements are either in _SelectedList or in _UnSelectedList</font>
<a name="l00240"></a><a class="code" href="classNL3D_1_1CQuadGrid.html#o5">00240</a>         CBaseNode                       <a class="code" href="classNL3D_1_1CQuadGrid.html#o5">_SelectedList</a>;          <font class="comment">// list of elements selected.</font>
<a name="l00241"></a><a class="code" href="classNL3D_1_1CQuadGrid.html#o6">00241</a>         CBaseNode                       <a class="code" href="classNL3D_1_1CQuadGrid.html#o6">_UnSelectedList</a>;        <font class="comment">// circular list of elements not selected</font>
00242         <font class="comment">// The memory for nodes</font>
<a name="l00243"></a><a class="code" href="classNL3D_1_1CQuadGrid.html#o7">00243</a>         <a class="code" href="classNLMISC_1_1CBlockMemory.html">NLMISC::CBlockMemory&lt;CNode&gt;</a>                                     <a class="code" href="classNL3D_1_1CQuadGrid.html#o7">_NodeBlockMemory</a>;
00244         <font class="comment">// The memory for node list</font>
<a name="l00245"></a><a class="code" href="classNL3D_1_1CQuadGrid.html#o8">00245</a>         <a class="code" href="classNLMISC_1_1CBlockMemory.html">NLMISC::CBlockMemory&lt;CNode*, false&gt;</a>                     <a class="code" href="classNL3D_1_1CQuadGrid.html#o8">_NodeListBlockMemory</a>;
00246 
00247 
00248 <font class="keyword">private</font>:<font class="comment">// Methods.</font>
00249 
00250         <font class="comment">// link a node to a root: Selected or UnSelected list</font>
<a name="l00251"></a><a class="code" href="classNL3D_1_1CQuadGrid.html#c0">00251</a>         <font class="keywordtype">void</font>            <a class="code" href="classNL3D_1_1CQuadGrid.html#c0">linkToRoot</a>(CBaseNode &amp;root, CBaseNode *ptr)
00252         {
00253                 ptr-&gt;Prev= &amp;root;
00254                 ptr-&gt;Next= root.Next;
00255                 ptr-&gt;Prev-&gt;Next= ptr;
00256                 <font class="keywordflow">if</font>(ptr-&gt;Next)
00257                         ptr-&gt;Next-&gt;Prev= ptr;
00258         }
00259 
00260         <font class="comment">// return the coordinates on the grid of what include the bbox.</font>
<a name="l00261"></a><a class="code" href="classNL3D_1_1CQuadGrid.html#c1">00261</a>         <font class="keywordtype">void</font>            <a class="code" href="classNL3D_1_1CQuadGrid.html#c1">selectQuads</a>(CVector bmin, CVector bmax, sint &amp;x0, sint &amp;x1, sint &amp;y0, sint &amp;y1)
00262         {
00263                 CVector         bminp, bmaxp;
00264                 bminp= bmin;
00265                 bmaxp= bmax;
00266                 bmin.minof(bminp, bmaxp);
00267                 bmax.maxof(bminp, bmaxp);
00268                 bmin/= <a class="code" href="classNL3D_1_1CQuadGrid.html#o3">_EltSize</a>;
00269                 bmax/= <a class="code" href="classNL3D_1_1CQuadGrid.html#o3">_EltSize</a>;
00270                 x0= (sint)(floor(bmin.x));
00271                 x1= (sint)(ceil(bmax.x));
00272                 y0= (sint)(floor(bmin.y));
00273                 y1= (sint)(ceil(bmax.y));
00274 
00275                 <font class="comment">// Very special case where the bbox.size==0 AND position is JUST on an edge of a case.</font>
00276                 <font class="keywordflow">if</font>(x0==x1)
00277                         x1++;
00278                 <font class="keywordflow">if</font>(y0==y1)
00279                         y1++;
00280 
00281                 <font class="comment">// Manage tiling.</font>
00282                 <font class="keywordflow">if</font>(x1-x0&gt;=<a class="code" href="classNL3D_1_1CQuadGrid.html#o1">_Size</a>)
00283                         x0=0, x1= <a class="code" href="classNL3D_1_1CQuadGrid.html#o1">_Size</a>;
00284                 <font class="keywordflow">else</font>
00285                 {
00286                         x0&amp;= <a class="code" href="classNL3D_1_1CQuadGrid.html#o1">_Size</a>-1;
00287                         x1&amp;= <a class="code" href="classNL3D_1_1CQuadGrid.html#o1">_Size</a>-1;
00288                         <font class="keywordflow">if</font>(x1&lt;=x0)
00289                                 x1+=<a class="code" href="classNL3D_1_1CQuadGrid.html#o1">_Size</a>;
00290                 }
00291                 <font class="keywordflow">if</font>(y1-y0&gt;=<a class="code" href="classNL3D_1_1CQuadGrid.html#o1">_Size</a>)
00292                         y0=0, y1= <a class="code" href="classNL3D_1_1CQuadGrid.html#o1">_Size</a>;
00293                 <font class="keywordflow">else</font>
00294                 {
00295                         y0&amp;= <a class="code" href="classNL3D_1_1CQuadGrid.html#o1">_Size</a>-1;
00296                         y1&amp;= <a class="code" href="classNL3D_1_1CQuadGrid.html#o1">_Size</a>-1;
00297                         <font class="keywordflow">if</font>(y1&lt;=y0)
00298                                 y1+=<a class="code" href="classNL3D_1_1CQuadGrid.html#o1">_Size</a>;
00299                 }
00300         }
00301 
00302         <font class="comment">// If not done, add the node to the selection.</font>
<a name="l00303"></a><a class="code" href="classNL3D_1_1CQuadGrid.html#c2">00303</a>         <font class="keywordtype">void</font>            <a class="code" href="classNL3D_1_1CQuadGrid.html#c2">addToSelection</a>(CNode    *ptr)
00304         {
00305                 <font class="comment">// if not selected</font>
00306                 <font class="keywordflow">if</font>(!ptr-&gt;Selected)
00307                 {
00308                         <font class="comment">// remove from the unselected list.</font>
00309                         ptr-&gt;Prev-&gt;Next= ptr-&gt;Next;
00310                         <font class="keywordflow">if</font>(ptr-&gt;Next)
00311                                 ptr-&gt;Next-&gt;Prev= ptr-&gt;Prev;
00312 
00313                         <font class="comment">// Append to front of the _Selected list.</font>
00314                         <a class="code" href="classNL3D_1_1CQuadGrid.html#c0">linkToRoot</a>(_SelectedList, ptr);
00315 
00316                         <font class="comment">// mark it</font>
00317                         ptr-&gt;Selected= <font class="keyword">true</font>;
00318                 }
00319         }
00320 
00321         <font class="comment">// Try to add each node of the quad node list.</font>
<a name="l00322"></a><a class="code" href="classNL3D_1_1CQuadGrid.html#c3">00322</a>         <font class="keywordtype">void</font>            <a class="code" href="classNL3D_1_1CQuadGrid.html#c3">addQuadNodeToSelection</a>(CQuadNode        &amp;quad)
00323         {
00324                 <font class="keyword">typename</font> <a class="code" href="classNLMISC_1_1CSTLBlockList.html">NLMISC::CSTLBlockList&lt;CNode*&gt;</a>::iterator        itNode;
00325                 <font class="keywordflow">for</font>(itNode= quad.Nodes.begin();itNode!=quad.Nodes.end();itNode++)
00326                 {
00327                         <a class="code" href="classNL3D_1_1CQuadGrid.html#c2">addToSelection</a>(*itNode);
00328                 }
00329         }
00330 
00331 
00332 <font class="keyword">public</font>:
00333         <font class="comment">// CLASS const_iterator.</font>
<a name="l00334"></a><a class="code" href="classNL3D_1_1CQuadGrid_1_1const__iterator.html">00334</a>         <font class="keyword">class </font>const_iterator
00335         {
00336         <font class="keyword">public</font>:
<a name="l00337"></a><a class="code" href="classNL3D_1_1CQuadGrid_1_1const__iterator.html#a0">00337</a>                 <a class="code" href="classNL3D_1_1CQuadGrid_1_1const__iterator.html#a0">const_iterator</a>()        {<a class="code" href="classNL3D_1_1CQuadGrid_1_1const__iterator.html#n0">_Ptr</a>=NULL;}
<a name="l00338"></a><a class="code" href="classNL3D_1_1CQuadGrid_1_1const__iterator.html#a1">00338</a>                 <a class="code" href="classNL3D_1_1CQuadGrid_1_1const__iterator.html#a0">const_iterator</a>(CNode *p) : <a class="code" href="classNL3D_1_1CQuadGrid_1_1const__iterator.html#n0">_Ptr</a>(p) {}
<a name="l00339"></a><a class="code" href="classNL3D_1_1CQuadGrid_1_1const__iterator.html#a2">00339</a>                 <a class="code" href="classNL3D_1_1CQuadGrid_1_1const__iterator.html#a0">const_iterator</a>(<font class="keyword">const</font> <a class="code" href="classNL3D_1_1CQuadGrid_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_1CQuadGrid_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_1CQuadGrid_1_1const__iterator.html#n0">_Ptr</a>) {}
00340 
<a name="l00341"></a><a class="code" href="classNL3D_1_1CQuadGrid_1_1const__iterator.html#a3">00341</a>                 <font class="keyword">const</font> T&amp;        <a class="code" href="classNL3D_1_1CQuadGrid_1_1const__iterator.html#a3">operator*</a>()<font class="keyword"> const</font>
00342 <font class="keyword">                        </font>{<font class="keywordflow">return</font> <a class="code" href="classNL3D_1_1CQuadGrid_1_1const__iterator.html#n0">_Ptr</a>-&gt;Elt; }
00343                 <font class="comment">// Doesn't work...</font>
00344                 <font class="comment">/*const T*      operator-&gt;() const</font>
00345 <font class="comment">                        {return (&amp;**this); }*/</font>
<a name="l00346"></a><a class="code" href="classNL3D_1_1CQuadGrid_1_1const__iterator.html#a4">00346</a>                 <a class="code" href="classNL3D_1_1CQuadGrid_1_1const__iterator.html#a0">const_iterator</a>&amp; <a class="code" href="classNL3D_1_1CQuadGrid_1_1const__iterator.html#a4">operator++</a>()
00347                         {<a class="code" href="classNL3D_1_1CQuadGrid_1_1const__iterator.html#n0">_Ptr</a> = (CNode*)(<a class="code" href="classNL3D_1_1CQuadGrid_1_1const__iterator.html#n0">_Ptr</a>-&gt;Next); <font class="keywordflow">return</font> (*this); }
<a name="l00348"></a><a class="code" href="classNL3D_1_1CQuadGrid_1_1const__iterator.html#a5">00348</a>                 <a class="code" href="classNL3D_1_1CQuadGrid_1_1const__iterator.html#a0">const_iterator</a> <a class="code" href="classNL3D_1_1CQuadGrid_1_1const__iterator.html#a4">operator++</a>(<font class="keywordtype">int</font>)
00349                         {<a class="code" href="classNL3D_1_1CQuadGrid_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="l00350"></a><a class="code" href="classNL3D_1_1CQuadGrid_1_1const__iterator.html#a6">00350</a>                 <a class="code" href="classNL3D_1_1CQuadGrid_1_1const__iterator.html#a0">const_iterator</a>&amp; <a class="code" href="classNL3D_1_1CQuadGrid_1_1const__iterator.html#a6">operator--</a>()
00351                         {<a class="code" href="classNL3D_1_1CQuadGrid_1_1const__iterator.html#n0">_Ptr</a> = (CNode*)(<a class="code" href="classNL3D_1_1CQuadGrid_1_1const__iterator.html#n0">_Ptr</a>-&gt;Prev); <font class="keywordflow">return</font> (*this); }
<a name="l00352"></a><a class="code" href="classNL3D_1_1CQuadGrid_1_1const__iterator.html#a7">00352</a>                 <a class="code" href="classNL3D_1_1CQuadGrid_1_1const__iterator.html#a0">const_iterator</a> <a class="code" href="classNL3D_1_1CQuadGrid_1_1const__iterator.html#a6">operator--</a>(<font class="keywordtype">int</font>)
00353                         {<a class="code" href="classNL3D_1_1CQuadGrid_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="l00354"></a><a class="code" href="classNL3D_1_1CQuadGrid_1_1const__iterator.html#a8">00354</a>                 <font class="keywordtype">bool</font> <a class="code" href="classNL3D_1_1CQuadGrid_1_1const__iterator.html#a8">operator==</a>(<font class="keyword">const</font> <a class="code" href="classNL3D_1_1CQuadGrid_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>
00355 <font class="keyword">                        </font>{<font class="keywordflow">return</font> (<a class="code" href="classNL3D_1_1CQuadGrid_1_1const__iterator.html#n0">_Ptr</a> == x._Ptr); }
<a name="l00356"></a><a class="code" href="classNL3D_1_1CQuadGrid_1_1const__iterator.html#a9">00356</a>                 <font class="keywordtype">bool</font> <a class="code" href="classNL3D_1_1CQuadGrid_1_1const__iterator.html#a9">operator!=</a>(<font class="keyword">const</font> <a class="code" href="classNL3D_1_1CQuadGrid_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>
00357 <font class="keyword">                        </font>{<font class="keywordflow">return</font> (!(*<font class="keyword">this</font> == x)); }
00358         <font class="keyword">protected</font>:
<a name="l00359"></a><a class="code" href="classNL3D_1_1CQuadGrid_1_1const__iterator.html#n0">00359</a>                 CNode   *<a class="code" href="classNL3D_1_1CQuadGrid_1_1const__iterator.html#n0">_Ptr</a>;
<a name="l00360"></a><a class="code" href="classNL3D_1_1CQuadGrid_1_1const__iterator.html#l0">00360</a>                 <font class="keyword">friend</font> <font class="keyword">class </font>CQuadGrid&lt;T&gt;;
<a name="l00361"></a><a class="code" href="classNL3D_1_1CQuadGrid_1_1const__iterator.html#l1">00361</a>                 <font class="keyword">friend</font> <font class="keyword">class </font><a class="code" href="classNL3D_1_1CQuadGrid_1_1const__iterator.html#l1">CIterator</a>;
00362         };
00363 
00364         <font class="comment">// CLASS CIterator</font>
<a name="l00365"></a><a class="code" href="classNL3D_1_1CQuadGrid_1_1CIterator.html">00365</a>         <font class="keyword">class </font><a class="code" href="classNL3D_1_1CQuadGrid.html#l0">CIterator</a> : <font class="keyword">public</font> const_iterator
00366         {
00367         <font class="keyword">public</font>:
<a name="l00368"></a><a class="code" href="classNL3D_1_1CQuadGrid_1_1CIterator.html#a0">00368</a>                 <a class="code" href="classNL3D_1_1CQuadGrid_1_1CIterator.html#a0">CIterator</a>()                     {<a class="code" href="classNL3D_1_1CQuadGrid_1_1const__iterator.html#n0">_Ptr</a>=NULL;}
<a name="l00369"></a><a class="code" href="classNL3D_1_1CQuadGrid_1_1CIterator.html#a1">00369</a>                 <a class="code" href="classNL3D_1_1CQuadGrid_1_1CIterator.html#a0">CIterator</a>(CNode *p) : <a class="code" href="classNL3D_1_1CQuadGrid_1_1const__iterator.html#a0">const_iterator</a>(p) {}
<a name="l00370"></a><a class="code" href="classNL3D_1_1CQuadGrid_1_1CIterator.html#a2">00370</a>                 T&amp;      <a class="code" href="classNL3D_1_1CQuadGrid_1_1CIterator.html#a2">operator*</a>()<font class="keyword"> const</font>
00371 <font class="keyword">                        </font>{<font class="keywordflow">return</font> <a class="code" href="classNL3D_1_1CQuadGrid_1_1const__iterator.html#n0">_Ptr</a>-&gt;Elt; }
00372                 <font class="comment">// Doesn't work...</font>
00373                 <font class="comment">/*T*    operator-&gt;() const</font>
00374 <font class="comment">                        {return (&amp;**this); }*/</font>
<a name="l00375"></a><a class="code" href="classNL3D_1_1CQuadGrid_1_1CIterator.html#a3">00375</a>                 <a class="code" href="classNL3D_1_1CQuadGrid_1_1CIterator.html#a0">CIterator</a>&amp; <a class="code" href="classNL3D_1_1CQuadGrid_1_1CIterator.html#a3">operator++</a>()
00376                         {<a class="code" href="classNL3D_1_1CQuadGrid_1_1const__iterator.html#n0">_Ptr</a> = (CNode*)(<a class="code" href="classNL3D_1_1CQuadGrid_1_1const__iterator.html#n0">_Ptr</a>-&gt;Next); <font class="keywordflow">return</font> (*this); }
<a name="l00377"></a><a class="code" href="classNL3D_1_1CQuadGrid_1_1CIterator.html#a4">00377</a>                 <a class="code" href="classNL3D_1_1CQuadGrid_1_1CIterator.html#a0">CIterator</a> <a class="code" href="classNL3D_1_1CQuadGrid_1_1CIterator.html#a3">operator++</a>(<font class="keywordtype">int</font>)
00378                         {<a class="code" href="classNL3D_1_1CQuadGrid_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="l00379"></a><a class="code" href="classNL3D_1_1CQuadGrid_1_1CIterator.html#a5">00379</a>                 <a class="code" href="classNL3D_1_1CQuadGrid_1_1CIterator.html#a0">CIterator</a>&amp; <a class="code" href="classNL3D_1_1CQuadGrid_1_1CIterator.html#a5">operator--</a>()
00380                         {<a class="code" href="classNL3D_1_1CQuadGrid_1_1const__iterator.html#n0">_Ptr</a> = (CNode*)(<a class="code" href="classNL3D_1_1CQuadGrid_1_1const__iterator.html#n0">_Ptr</a>-&gt;Prev); <font class="keywordflow">return</font> (*this); }
<a name="l00381"></a><a class="code" href="classNL3D_1_1CQuadGrid_1_1CIterator.html#a6">00381</a>                 <a class="code" href="classNL3D_1_1CQuadGrid_1_1CIterator.html#a0">CIterator</a> <a class="code" href="classNL3D_1_1CQuadGrid_1_1CIterator.html#a5">operator--</a>(<font class="keywordtype">int</font>)
00382                         {<a class="code" href="classNL3D_1_1CQuadGrid_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="l00383"></a><a class="code" href="classNL3D_1_1CQuadGrid_1_1CIterator.html#a7">00383</a>                 <font class="keywordtype">bool</font> <a class="code" href="classNL3D_1_1CQuadGrid_1_1CIterator.html#a7">operator==</a>(<font class="keyword">const</font> <a class="code" href="classNL3D_1_1CQuadGrid_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>
00384 <font class="keyword">                        </font>{<font class="keywordflow">return</font> (<a class="code" href="classNL3D_1_1CQuadGrid_1_1const__iterator.html#n0">_Ptr</a> == x._Ptr); }
<a name="l00385"></a><a class="code" href="classNL3D_1_1CQuadGrid_1_1CIterator.html#a8">00385</a>                 <font class="keywordtype">bool</font> <a class="code" href="classNL3D_1_1CQuadGrid_1_1CIterator.html#a8">operator!=</a>(<font class="keyword">const</font> <a class="code" href="classNL3D_1_1CQuadGrid_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>
00386 <font class="keyword">                        </font>{<font class="keywordflow">return</font> (!(*<font class="keyword">this</font> == x)); }
00387         <font class="keyword">protected</font>:
<a name="l00388"></a><a class="code" href="classNL3D_1_1CQuadGrid_1_1CIterator.html#l0">00388</a>                 <font class="keyword">friend</font> <font class="keyword">class </font>CQuadGrid&lt;T&gt;;
00389         };
00390 
00391 
00392 };
00393 
00394 
00395 <font class="comment">// ***************************************************************************</font>
00396 <font class="comment">// ***************************************************************************</font>
00397 <font class="comment">// ***************************************************************************</font>
00398 <font class="comment">// ***************************************************************************</font>
00399 <font class="comment">// Template CQuadGrid implementation.</font>
00400 <font class="comment">// ***************************************************************************</font>
00401 <font class="comment">// ***************************************************************************</font>
00402 <font class="comment">// ***************************************************************************</font>
00403 <font class="comment">// ***************************************************************************</font>
00404 
00405 
00406 <font class="comment">// ***************************************************************************</font>
00407 <font class="comment">// Init.</font>
00408 <font class="comment">// ***************************************************************************</font>
00409 
00410 
00411 <font class="comment">// ***************************************************************************</font>
<a name="l00412"></a><a class="code" href="classNL3D_1_1CQuadGrid.html#a0">00412</a> <font class="keyword">template</font>&lt;<font class="keyword">class</font> T&gt;       CQuadGrid&lt;T&gt;::CQuadGrid(uint memoryBlockSize) : 
00413         _NodeBlockMemory(memoryBlockSize), _NodeListBlockMemory(memoryBlockSize)
00414 {
00415         <a class="code" href="classNL3D_1_1CQuadGrid.html#o2">_SizePower</a>=4;
00416         <a class="code" href="classNL3D_1_1CQuadGrid.html#o1">_Size</a>=1&lt;&lt;<a class="code" href="classNL3D_1_1CQuadGrid.html#o2">_SizePower</a>;
00417         <a class="code" href="classNL3D_1_1CQuadGrid.html#o3">_EltSize</a>=1;
00418         <a class="code" href="classNL3D_1_1CQuadGrid.html#o4">_ChangeBasis</a>.<a class="code" href="classNLMISC_1_1CMatrix.html#z290_0">identity</a>();
00419 }
00420 <font class="comment">// ***************************************************************************</font>
<a name="l00421"></a><a class="code" href="classNL3D_1_1CQuadGrid.html#a1">00421</a> <font class="keyword">template</font>&lt;<font class="keyword">class</font> T&gt;       CQuadGrid&lt;T&gt;::~CQuadGrid()
00422 {
00423         <a class="code" href="classNL3D_1_1CQuadGrid.html#z742_0">clear</a>();
00424         <font class="comment">// must clear the array, before _NodeListBlockMemory.purge() is called.</font>
00425         <a class="code" href="classNL3D_1_1CQuadGrid.html#o0">_Grid</a>.clear();
00426 }
00427 <font class="comment">// ***************************************************************************</font>
<a name="l00428"></a><a class="code" href="classNL3D_1_1CQuadGrid.html#z741_0">00428</a> <font class="keyword">template</font>&lt;<font class="keyword">class</font> T&gt;       <font class="keywordtype">void</font>            CQuadGrid&lt;T&gt;::changeBase(<font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CMatrix.html">NLMISC::CMatrix</a>&amp; base)
00429 {
00430         <a class="code" href="classNL3D_1_1CQuadGrid.html#o4">_ChangeBasis</a>= base;
00431 }
00432 <font class="comment">// ***************************************************************************</font>
<a name="l00433"></a><a class="code" href="classNL3D_1_1CQuadGrid.html#z741_1">00433</a> <font class="keyword">template</font>&lt;<font class="keyword">class</font> T&gt;       <font class="keywordtype">void</font>            CQuadGrid&lt;T&gt;::create(uint size, <font class="keywordtype">float</font> eltSize)
00434 {
00435         <a class="code" href="classNL3D_1_1CQuadGrid.html#z742_0">clear</a>();
00436 
00437         <a class="code" href="debug_8h.html#a6">nlassert</a>(NLMISC::isPowerOf2(size));
00438         <a class="code" href="debug_8h.html#a6">nlassert</a>(size&lt;=32768);
00439         <a class="code" href="classNL3D_1_1CQuadGrid.html#o2">_SizePower</a>= <a class="code" href="namespaceNLMISC.html#a224">NLMISC::getPowerOf2</a>(size);
00440         <a class="code" href="classNL3D_1_1CQuadGrid.html#o1">_Size</a>=1&lt;&lt;<a class="code" href="classNL3D_1_1CQuadGrid.html#o2">_SizePower</a>;
00441         <a class="code" href="classNL3D_1_1CQuadGrid.html#o0">_Grid</a>.resize(<a class="code" href="classNL3D_1_1CQuadGrid.html#o1">_Size</a>*<a class="code" href="classNL3D_1_1CQuadGrid.html#o1">_Size</a>, CQuadNode(&amp;<a class="code" href="classNL3D_1_1CQuadGrid.html#o8">_NodeListBlockMemory</a>));
00442 
00443         <a class="code" href="debug_8h.html#a6">nlassert</a>(eltSize&gt;0);
00444         <a class="code" href="classNL3D_1_1CQuadGrid.html#o3">_EltSize</a>= eltSize;
00445 }
00446 
00447 
00448 <font class="comment">// ***************************************************************************</font>
00449 <font class="comment">// insert/erase.</font>
00450 <font class="comment">// ***************************************************************************</font>
00451 
00452 
00453 <font class="comment">// ***************************************************************************</font>
<a name="l00454"></a><a class="code" href="classNL3D_1_1CQuadGrid.html#z742_0">00454</a> <font class="keyword">template</font>&lt;<font class="keyword">class</font> T&gt;       <font class="keywordtype">void</font>            CQuadGrid&lt;T&gt;::clear()
00455 {
00456         <a class="code" href="classNL3D_1_1CQuadGrid.html#l0">CIterator</a>       it;
00457         <a class="code" href="classNL3D_1_1CQuadGrid.html#z743_1">selectAll</a>();
00458         <font class="keywordflow">while</font>( (it=<a class="code" href="classNL3D_1_1CQuadGrid.html#z743_3">begin</a>())!=<a class="code" href="classNL3D_1_1CQuadGrid.html#z743_4">end</a>())
00459         {
00460                 <a class="code" href="classNL3D_1_1CQuadGrid.html#z742_1">erase</a>(it);
00461         }
00462 
00463         <font class="comment">// Clear the 2 selection...</font>
00464         <a class="code" href="classNL3D_1_1CQuadGrid.html#o5">_SelectedList</a>.<a class="code" href="classNL3D_1_1CQuadGrid_1_1CBaseNode.html#m1">Next</a>= NULL;
00465         <a class="code" href="classNL3D_1_1CQuadGrid.html#o6">_UnSelectedList</a>.<a class="code" href="classNL3D_1_1CQuadGrid_1_1CBaseNode.html#m1">Next</a>= NULL;
00466 }
00467 <font class="comment">// ***************************************************************************</font>
00468 <font class="keyword">template</font>&lt;<font class="keyword">class</font> T&gt;       <font class="keyword">typename</font> CQuadGrid&lt;T&gt;::CIterator        CQuadGrid&lt;T&gt;::erase(<font class="keyword">typename</font> CQuadGrid&lt;T&gt;::CIterator it)
00469 {
00470         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>;
00471         CNode   *ptr= it._Ptr;
00472 
00473         <font class="keywordflow">if</font>(!ptr)
00474                 <font class="keywordflow">return</font> <a class="code" href="classNL3D_1_1CQuadGrid.html#z743_4">end</a>();
00475 
00476         <font class="comment">// First erase all references to it.</font>
00477         <font class="comment">//==================================</font>
00478         <font class="keywordflow">for</font>(<a class="code" href="driver__opengl__extension__def_8h.html#a365">y</a>= ptr-&gt;y0;<a class="code" href="driver__opengl__extension__def_8h.html#a365">y</a>&lt;ptr-&gt;y1;<a class="code" href="driver__opengl__extension__def_8h.html#a365">y</a>++)
00479         {
00480                 sint    xe,ye;
00481                 ye= <a class="code" href="driver__opengl__extension__def_8h.html#a365">y</a> &amp;(<a class="code" href="classNL3D_1_1CQuadGrid.html#o1">_Size</a>-1);
00482                 <font class="keywordflow">for</font>(<a class="code" href="driver__opengl__extension__def_8h.html#a364">x</a>= ptr-&gt;x0;<a class="code" href="driver__opengl__extension__def_8h.html#a364">x</a>&lt;ptr-&gt;x1;<a class="code" href="driver__opengl__extension__def_8h.html#a364">x</a>++)
00483                 {
00484                         xe= <a class="code" href="driver__opengl__extension__def_8h.html#a364">x</a> &amp;(<a class="code" href="classNL3D_1_1CQuadGrid.html#o1">_Size</a>-1);
00485                         CQuadNode       &amp;quad= <a class="code" href="classNL3D_1_1CQuadGrid.html#o0">_Grid</a>[(ye&lt;&lt;<a class="code" href="classNL3D_1_1CQuadGrid.html#o2">_SizePower</a>)+xe];
00486                         <font class="keyword">typename</font> <a class="code" href="classNLMISC_1_1CSTLBlockList.html">NLMISC::CSTLBlockList&lt;CNode*&gt;</a>::iterator        itNode;
00487                         <font class="keywordflow">for</font>(itNode= quad.Nodes.begin();itNode!=quad.Nodes.end();itNode++)
00488                         {
00489                                 <font class="keywordflow">if</font>((*itNode)==ptr)
00490                                 {
00491                                         quad.Nodes.erase(itNode);
00492                                         <font class="keywordflow">break</font>;
00493                                 }
00494                         }
00495                 }
00496         }
00497 
00498         <font class="comment">// Then delete it..., and update selection linked list.</font>
00499         <font class="comment">//=====================================================</font>
00500         <font class="comment">// remove it from _SelectedList or _UnSelectedList</font>
00501         CBaseNode       *next= NULL;
00502         next= ptr-&gt;Next;
00503         <font class="keywordflow">if</font>(next)
00504                 next-&gt;Prev=ptr-&gt;Prev;
00505         ptr-&gt;Prev-&gt;Next= next;
00506         <font class="comment">// if not selected, then must return NULL</font>
00507         <font class="keywordflow">if</font>(!ptr-&gt;Selected)
00508                 next= NULL;
00509         <font class="comment">// delete the object.</font>
00510         <a class="code" href="classNL3D_1_1CQuadGrid.html#o7">_NodeBlockMemory</a>.<a class="code" href="classNLMISC_1_1CBlockMemory.html#a4">free</a>(ptr);
00511 
00512 
00513         <font class="keywordflow">return</font> <a class="code" href="classNL3D_1_1CQuadGrid.html#l0">CIterator</a>((CNode*)next);
00514 }
00515 <font class="comment">// ***************************************************************************</font>
<a name="l00516"></a><a class="code" href="classNL3D_1_1CQuadGrid.html#z742_2">00516</a> <font class="keyword">template</font>&lt;<font class="keyword">class</font> T&gt;       <font class="keyword">typename</font> CQuadGrid&lt;T&gt;::CIterator        CQuadGrid&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)
00517 {
00518         CVector         bmin,bmax;
00519         bmin= <a class="code" href="classNL3D_1_1CQuadGrid.html#o4">_ChangeBasis</a>*bboxmin;
00520         bmax= <a class="code" href="classNL3D_1_1CQuadGrid.html#o4">_ChangeBasis</a>*bboxmax;
00521 
00522         <font class="comment">// init the object.</font>
00523         CNode   *ptr= <a class="code" href="classNL3D_1_1CQuadGrid.html#o7">_NodeBlockMemory</a>.<a class="code" href="classNLMISC_1_1CBlockMemory.html#a3">allocate</a>();
00524         ptr-&gt;Elt= val;
00525         <font class="comment">// Link to _Unselected list.</font>
00526         <a class="code" href="classNL3D_1_1CQuadGrid.html#c0">linkToRoot</a>(<a class="code" href="classNL3D_1_1CQuadGrid.html#o6">_UnSelectedList</a>, ptr);
00527         <font class="comment">// mark as not selected.</font>
00528         ptr-&gt;Selected= <font class="keyword">false</font>;
00529 
00530 
00531         <font class="comment">// Find which quad include the object.</font>
00532         <font class="comment">//===================================</font>
00533         sint    x0,y0;
00534         sint    x1,y1;
00535         <a class="code" href="classNL3D_1_1CQuadGrid.html#c1">selectQuads</a>(bmin, bmax, x0,x1, y0,y1);
00536 
00537         ptr-&gt;x0= x0;
00538         ptr-&gt;x1= x1;
00539         ptr-&gt;y0= y0;
00540         ptr-&gt;y1= y1;
00541 
00542         <font class="comment">// Then for all of them, insert the node in their list.</font>
00543         <font class="comment">//=====================================================</font>
00544         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>;
00545         <font class="keywordflow">for</font>(<a class="code" href="driver__opengl__extension__def_8h.html#a365">y</a>= ptr-&gt;y0;<a class="code" href="driver__opengl__extension__def_8h.html#a365">y</a>&lt;ptr-&gt;y1;<a class="code" href="driver__opengl__extension__def_8h.html#a365">y</a>++)
00546         {
00547                 sint    xe,ye;
00548                 ye= <a class="code" href="driver__opengl__extension__def_8h.html#a365">y</a> &amp;(<a class="code" href="classNL3D_1_1CQuadGrid.html#o1">_Size</a>-1);
00549                 <font class="keywordflow">for</font>(<a class="code" href="driver__opengl__extension__def_8h.html#a364">x</a>= ptr-&gt;x0;<a class="code" href="driver__opengl__extension__def_8h.html#a364">x</a>&lt;ptr-&gt;x1;<a class="code" href="driver__opengl__extension__def_8h.html#a364">x</a>++)
00550                 {
00551                         xe= <a class="code" href="driver__opengl__extension__def_8h.html#a364">x</a> &amp;(<a class="code" href="classNL3D_1_1CQuadGrid.html#o1">_Size</a>-1);
00552                         CQuadNode       &amp;quad= <a class="code" href="classNL3D_1_1CQuadGrid.html#o0">_Grid</a>[(ye&lt;&lt;<a class="code" href="classNL3D_1_1CQuadGrid.html#o2">_SizePower</a>)+xe];
00553                         quad.Nodes.push_back(ptr);
00554                 }
00555         }
00556 
00557         <font class="keywordflow">return</font> <a class="code" href="classNL3D_1_1CQuadGrid.html#l0">CIterator</a>(ptr);
00558 }
00559 
00560 
00561 <font class="comment">// ***************************************************************************</font>
00562 <font class="comment">// selection.</font>
00563 <font class="comment">// ***************************************************************************</font>
00564 
00565 
00566 <font class="comment">// ***************************************************************************</font>
<a name="l00567"></a><a class="code" href="classNL3D_1_1CQuadGrid.html#z743_0">00567</a> <font class="keyword">template</font>&lt;<font class="keyword">class</font> T&gt;       <font class="keywordtype">void</font>                    CQuadGrid&lt;T&gt;::clearSelection()
00568 {
00569         CBaseNode       *ptr= <a class="code" href="classNL3D_1_1CQuadGrid.html#o5">_SelectedList</a>.<a class="code" href="classNL3D_1_1CQuadGrid_1_1CBaseNode.html#m1">Next</a>;
00570         <font class="keywordflow">while</font>(ptr)
00571         {
00572                 <font class="comment">// next selected.</font>
00573                 CBaseNode       *nextSelected= ptr-&gt;Next;
00574 
00575                 <font class="comment">// Link to _Unselected list.</font>
00576                 <a class="code" href="classNL3D_1_1CQuadGrid.html#c0">linkToRoot</a>(<a class="code" href="classNL3D_1_1CQuadGrid.html#o6">_UnSelectedList</a>, ptr);
00577 
00578                 <font class="comment">// mark as not selected.</font>
00579                 ptr-&gt;Selected= <font class="keyword">false</font>;
00580 
00581                 <font class="comment">// next.</font>
00582                 ptr= nextSelected;
00583         }
00584 
00585         <font class="comment">// the selected list is now empty.</font>
00586         <a class="code" href="classNL3D_1_1CQuadGrid.html#o5">_SelectedList</a>.<a class="code" href="classNL3D_1_1CQuadGrid_1_1CBaseNode.html#m1">Next</a>= NULL;
00587 }
00588 <font class="comment">// ***************************************************************************</font>
<a name="l00589"></a><a class="code" href="classNL3D_1_1CQuadGrid.html#z743_1">00589</a> <font class="keyword">template</font>&lt;<font class="keyword">class</font> T&gt;       <font class="keywordtype">void</font>                    CQuadGrid&lt;T&gt;::selectAll()
00590 {
00591         <font class="comment">// This is the opposite of clearSelection(). get all that are in _UnSelectedList,</font>
00592         <font class="comment">// and put them in _SelectedList</font>
00593         CBaseNode       *ptr= <a class="code" href="classNL3D_1_1CQuadGrid.html#o6">_UnSelectedList</a>.<a class="code" href="classNL3D_1_1CQuadGrid_1_1CBaseNode.html#m1">Next</a>;
00594         <font class="keywordflow">while</font>(ptr)
00595         {
00596                 <font class="comment">// next selected.</font>
00597                 CBaseNode       *nextUnSelected= ptr-&gt;Next;
00598 
00599                 <font class="comment">// Link to _Selected list.</font>
00600                 <a class="code" href="classNL3D_1_1CQuadGrid.html#c0">linkToRoot</a>(<a class="code" href="classNL3D_1_1CQuadGrid.html#o5">_SelectedList</a>, ptr);
00601 
00602                 <font class="comment">// mark as selected.</font>
00603                 ptr-&gt;Selected= <font class="keyword">true</font>;
00604 
00605                 <font class="comment">// next.</font>
00606                 ptr= nextUnSelected;
00607         }
00608 
00609         <font class="comment">// the Unselected list is now empty.</font>
00610         <a class="code" href="classNL3D_1_1CQuadGrid.html#o6">_UnSelectedList</a>.<a class="code" href="classNL3D_1_1CQuadGrid_1_1CBaseNode.html#m1">Next</a>= NULL;
00611 }
00612 <font class="comment">// ***************************************************************************</font>
<a name="l00613"></a><a class="code" href="classNL3D_1_1CQuadGrid.html#z743_2">00613</a> <font class="keyword">template</font>&lt;<font class="keyword">class</font> T&gt;       <font class="keywordtype">void</font>                    CQuadGrid&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)
00614 {
00615         CVector         bmin,bmax;
00616         bmin= <a class="code" href="classNL3D_1_1CQuadGrid.html#o4">_ChangeBasis</a>*bboxmin;
00617         bmax= <a class="code" href="classNL3D_1_1CQuadGrid.html#o4">_ChangeBasis</a>*bboxmax;
00618 
00619         <a class="code" href="classNL3D_1_1CQuadGrid.html#z743_0">clearSelection</a>();
00620 
00621         <font class="comment">// What are the quads to access?</font>
00622         sint    x0,y0;
00623         sint    x1,y1;
00624         <a class="code" href="classNL3D_1_1CQuadGrid.html#c1">selectQuads</a>(bmin, bmax, x0,x1, y0,y1);
00625 
00626         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>;
00627         <font class="keywordflow">for</font>(<a class="code" href="driver__opengl__extension__def_8h.html#a365">y</a>= y0;<a class="code" href="driver__opengl__extension__def_8h.html#a365">y</a>&lt;y1;<a class="code" href="driver__opengl__extension__def_8h.html#a365">y</a>++)
00628         {
00629                 sint    xe,ye;
00630                 ye= <a class="code" href="driver__opengl__extension__def_8h.html#a365">y</a> &amp;(<a class="code" href="classNL3D_1_1CQuadGrid.html#o1">_Size</a>-1);
00631                 <font class="keywordflow">for</font>(<a class="code" href="driver__opengl__extension__def_8h.html#a364">x</a>= x0;<a class="code" href="driver__opengl__extension__def_8h.html#a364">x</a>&lt;x1;<a class="code" href="driver__opengl__extension__def_8h.html#a364">x</a>++)
00632                 {
00633                         xe= <a class="code" href="driver__opengl__extension__def_8h.html#a364">x</a> &amp;(<a class="code" href="classNL3D_1_1CQuadGrid.html#o1">_Size</a>-1);
00634                         CQuadNode       &amp;quad= <a class="code" href="classNL3D_1_1CQuadGrid.html#o0">_Grid</a>[(ye&lt;&lt;<a class="code" href="classNL3D_1_1CQuadGrid.html#o2">_SizePower</a>)+xe];
00635                         <a class="code" href="classNL3D_1_1CQuadGrid.html#c3">addQuadNodeToSelection</a>(quad);
00636                 }
00637         }
00638 
00639 }
00640 <font class="comment">// ***************************************************************************</font>
<a name="l00641"></a><a class="code" href="classNL3D_1_1CQuadGrid.html#z743_3">00641</a> <font class="keyword">template</font>&lt;<font class="keyword">class</font> T&gt;       <font class="keyword">typename</font> CQuadGrid&lt;T&gt;::CIterator                CQuadGrid&lt;T&gt;::begin()
00642 {
00643         <font class="keywordflow">return</font> <a class="code" href="classNL3D_1_1CQuadGrid.html#l0">CIterator</a>((CNode*)(<a class="code" href="classNL3D_1_1CQuadGrid.html#o5">_SelectedList</a>.<a class="code" href="classNL3D_1_1CQuadGrid_1_1CBaseNode.html#m1">Next</a>));
00644 }
00645 <font class="comment">// ***************************************************************************</font>
<a name="l00646"></a><a class="code" href="classNL3D_1_1CQuadGrid.html#z743_4">00646</a> <font class="keyword">template</font>&lt;<font class="keyword">class</font> T&gt;       <font class="keyword">typename</font> CQuadGrid&lt;T&gt;::CIterator                CQuadGrid&lt;T&gt;::end()
00647 {
00648         <font class="keywordflow">return</font> <a class="code" href="classNL3D_1_1CQuadGrid.html#l0">CIterator</a>(NULL);
00649 }
00650 
00651 
00652 } <font class="comment">// NL3D</font>
00653 
00654 
00655 <font class="preprocessor">#endif // NL_QUAD_GRID_H</font>
00656 <font class="preprocessor"></font>
00657 <font class="comment">/* End of quad_grid.h */</font>
</pre></div>

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