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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<h1>NL3D::CVisualCollisionManager::CMeshCol Class Reference</h1><table border=0 cellpadding=0 cellspacing=0>
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<tr><td colspan=2><br><h2>Public Member Functions</h2></td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top>void </td><td class="memItemRight" valign=bottom><a class="el" href="a03708.html#NL3D_1_1CVisualCollisionManager_1_1CMeshCola0">build</a> (const std::vector< <a class="el" href="a03128.html">CVector</a> > &vertices, const std::vector< <a class="el" href="a04558.html#a9">uint16</a> > &triangles)</td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top>float </td><td class="memItemRight" valign=bottom><a class="el" href="a03708.html#NL3D_1_1CVisualCollisionManager_1_1CMeshCola1">getCameraCollision</a> (class <a class="el" href="a02317.html">CCameraCol</a> &camCol)</td></tr>
<tr><td colspan=2><br><h2>Data Fields</h2></td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top><a class="el" href="a02156.html">NLMISC::CAABBox</a> </td><td class="memItemRight" valign=bottom><a class="el" href="a03708.html#NL3D_1_1CVisualCollisionManager_1_1CMeshColo0">BBox</a></td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top><a class="el" href="a03709.html">CStaticGrid</a> </td><td class="memItemRight" valign=bottom><a class="el" href="a03708.html#NL3D_1_1CVisualCollisionManager_1_1CMeshColo1">QuadGrid</a></td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top><a class="el" href="a03273.html">CQuadGrid</a>< <a class="el" href="a03708.html">CMeshCol</a> * >::CIterator </td><td class="memItemRight" valign=bottom><a class="el" href="a03708.html#NL3D_1_1CVisualCollisionManager_1_1CMeshColo2">QuadGridIt</a></td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top>std::vector< <a class="el" href="a04558.html#a9">uint16</a> > </td><td class="memItemRight" valign=bottom><a class="el" href="a03708.html#NL3D_1_1CVisualCollisionManager_1_1CMeshColo3">Triangles</a></td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top>std::vector< <a class="el" href="a03128.html">CVector</a> > </td><td class="memItemRight" valign=bottom><a class="el" href="a03708.html#NL3D_1_1CVisualCollisionManager_1_1CMeshColo4">Vertices</a></td></tr>
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<hr><h2>Member Function Documentation</h2>
<a class="anchor" name="NL3D_1_1CVisualCollisionManager_1_1CMeshCola0" doxytag="NL3D::CVisualCollisionManager::CMeshCol::build" ></a><p>
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<td class="md" nowrap valign="top"> void NL3D::CVisualCollisionManager::CMeshCol::build </td>
<td class="md" valign="top">( </td>
<td class="md" nowrap valign="top">const std::vector< <a class="el" href="a03128.html">CVector</a> > & </td>
<td class="mdname" nowrap> <em>vertices</em>, </td>
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<td class="md" nowrap align="right"></td>
<td></td>
<td class="md" nowrap>const std::vector< <a class="el" href="a04558.html#a9">uint16</a> > & </td>
<td class="mdname" nowrap> <em>triangles</em></td>
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<td></td>
<td class="md">) </td>
<td class="md" colspan="2"></td>
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<p>
Definition at line <a class="el" href="a06729.html#l00370">370</a> of file <a class="el" href="a06729.html">visual_collision_manager.cpp</a>.
<p>
References <a class="el" href="a06729.html#l00200">NL3D::CVisualCollisionManager::CStaticGrid::add()</a>, <a class="el" href="a06729.html#l00233">NL3D::CVisualCollisionManager::CStaticGrid::compile()</a>, <a class="el" href="a06729.html#l00172">NL3D::CVisualCollisionManager::CStaticGrid::create()</a>, <a class="el" href="a05384.html#l00215">NLMISC::CAABBox::extend()</a>, <a class="el" href="a05622.html#l00290">nlassert</a>, <a class="el" href="a06730.html#l00192">QuadGrid</a>, <a class="el" href="a05385.html#l00066">NLMISC::CAABBox::setCenter()</a>, and <a class="el" href="a05981.html#l00105">uint</a>.
<p>
Referenced by <a class="el" href="a06729.html#l00401">NL3D::CVisualCollisionManager::addMeshCollision()</a>.
<p>
<div class="fragment"><pre>00371 {
00372 <a class="code" href="a04558.html#a15">uint</a> i;
00373 <a class="code" href="a04199.html#a6">nlassert</a>(!vertices.empty());
00374
00375 <span class="comment">// copy</span>
00376 <a class="code" href="a03708.html#NL3D_1_1CVisualCollisionManager_1_1CMeshColo4">Vertices</a>= vertices;
00377 <a class="code" href="a03708.html#NL3D_1_1CVisualCollisionManager_1_1CMeshColo3">Triangles</a>= triangles;
00378
00379 <span class="comment">// Build the bbox for this col mesh</span>
00380 <a class="code" href="a03708.html#NL3D_1_1CVisualCollisionManager_1_1CMeshColo0">BBox</a>.<a class="code" href="a02156.html#NLMISC_1_1CAABBoxz1902_1">setCenter</a>(vertices[0]);
00381 <span class="keywordflow">for</span>(i=1;i<vertices.size();i++)
00382 <a class="code" href="a03708.html#NL3D_1_1CVisualCollisionManager_1_1CMeshColo0">BBox</a>.<a class="code" href="a02156.html#NLMISC_1_1CAABBoxExtz1902_0">extend</a>(vertices[i]);
00383
00384 <span class="comment">// Build the Static Grid</span>
00385 <a class="code" href="a04558.html#a15">uint</a> numTris= triangles.size()/3;
00386 <a class="code" href="a03708.html#NL3D_1_1CVisualCollisionManager_1_1CMeshColo1">QuadGrid</a>.create(16, numTris, BBox);
00387 <span class="comment">// Add all triangles</span>
00388 <span class="keywordflow">for</span>(i=0;i<numTris;i++)
00389 {
00390 CAABBox bb;
00391 bb.setCenter(Vertices[Triangles[i*3+0]]);
00392 bb.extend(Vertices[Triangles[i*3+1]]);
00393 bb.extend(Vertices[Triangles[i*3+2]]);
00394 <a class="code" href="a03708.html#NL3D_1_1CVisualCollisionManager_1_1CMeshColo1">QuadGrid</a>.add(i, bb);
00395 }
00396 <span class="comment">// compile</span>
00397 <a class="code" href="a03708.html#NL3D_1_1CVisualCollisionManager_1_1CMeshColo1">QuadGrid</a>.compile();
00398 }
</pre></div> </td>
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<a class="anchor" name="NL3D_1_1CVisualCollisionManager_1_1CMeshCola1" doxytag="NL3D::CVisualCollisionManager::CMeshCol::getCameraCollision" ></a><p>
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<td class="md" nowrap valign="top"> float NL3D::CVisualCollisionManager::CMeshCol::getCameraCollision </td>
<td class="md" valign="top">( </td>
<td class="md" nowrap valign="top">class <a class="el" href="a02317.html">CCameraCol</a> & </td>
<td class="mdname1" valign="top" nowrap> <em>camCol</em> </td>
<td class="md" valign="top"> ) </td>
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<p>
Definition at line <a class="el" href="a06729.html#l00330">330</a> of file <a class="el" href="a06729.html">visual_collision_manager.cpp</a>.
<p>
References <a class="el" href="a05533.html#l00057">NL3D::CCameraCol::BBox</a>, <a class="el" href="a05533.html#l00050">NL3D::CCameraCol::End</a>, <a class="el" href="a05384.html#l00107">NLMISC::CAABBox::intersect()</a>, <a class="el" href="a05484.html#l00038">min</a>, <a class="el" href="a05532.html#l00131">NL3D::CCameraCol::minimizeDistanceAgainstTri()</a>, <a class="el" href="a06730.html#l00192">QuadGrid</a>, <a class="el" href="a06729.html#l00279">NL3D::CVisualCollisionManager::CStaticGrid::select()</a>, <a class="el" href="a05533.html#l00048">NL3D::CCameraCol::Start</a>, and <a class="el" href="a05981.html#l00105">uint</a>.
<p>
<div class="fragment"><pre>00331 {
00332 <span class="comment">// first test if intersect with the bboxes</span>
00333 <span class="keywordflow">if</span>(!camCol.BBox.intersect(BBox))
00334 <span class="keywordflow">return</span> 1;
00335
00336 <span class="comment">// Select triangles</span>
00337 <span class="keyword">static</span> std::vector<uint16> selection;
00338 <a class="code" href="a04558.html#a15">uint</a> numSel= <a class="code" href="a03708.html#NL3D_1_1CVisualCollisionManager_1_1CMeshColo1">QuadGrid</a>.select(camCol.BBox, selection);
00339
00340 <span class="comment">// **** For all triangles, test if intersect the camera collision</span>
00341 <span class="keywordtype">float</span> sqrMinDist= FLT_MAX;
00342 <span class="keywordflow">for</span>(<a class="code" href="a04558.html#a15">uint</a> i=0;i<numSel;i++)
00343 {
00344 <a class="code" href="a04558.html#a15">uint</a> triId= selection[i];
00345 <span class="comment">// build the triangle</span>
00346 camCol.minimizeDistanceAgainstTri(
00347 Vertices[Triangles[triId*3+0]],
00348 Vertices[Triangles[triId*3+1]],
00349 Vertices[Triangles[triId*3+2]],
00350 sqrMinDist);
00351 }
00352
00353 <span class="comment">// **** return the collision found, between [0,1]</span>
00354 <span class="keywordflow">if</span>(sqrMinDist == FLT_MAX)
00355 <span class="keywordflow">return</span> 1;
00356 <span class="keywordflow">else</span>
00357 {
00358 <span class="keywordtype">float</span> f= 1;
00359 <span class="keywordtype">float</span> d= (camCol.End-camCol.Start).norm();
00360 <span class="keywordflow">if</span>(d>0)
00361 {
00362 f= sqrtf(sqrMinDist) / d;
00363 f= <a class="code" href="a04061.html#a0">min</a>(f, 1.f);
00364 }
00365 <span class="keywordflow">return</span> f;
00366 }
00367 }
</pre></div> </td>
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<hr><h2>Field Documentation</h2>
<a class="anchor" name="NL3D_1_1CVisualCollisionManager_1_1CMeshColo0" doxytag="NL3D::CVisualCollisionManager::CMeshCol::BBox" ></a><p>
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<td class="md" nowrap valign="top"> <a class="el" href="a02156.html">NLMISC::CAABBox</a> <a class="el" href="a03708.html#NL3D_1_1CVisualCollisionManager_1_1CMeshColo0">NL3D::CVisualCollisionManager::CMeshCol::BBox</a>
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Definition at line <a class="el" href="a06730.html#l00188">188</a> of file <a class="el" href="a06730.html">visual_collision_manager.h</a>.
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Referenced by <a class="el" href="a06729.html#l00401">NL3D::CVisualCollisionManager::addMeshCollision()</a>. </td>
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<a class="anchor" name="NL3D_1_1CVisualCollisionManager_1_1CMeshColo1" doxytag="NL3D::CVisualCollisionManager::CMeshCol::QuadGrid" ></a><p>
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<td class="md" nowrap valign="top"> <a class="el" href="a03709.html">CStaticGrid</a> <a class="el" href="a03708.html#NL3D_1_1CVisualCollisionManager_1_1CMeshColo1">NL3D::CVisualCollisionManager::CMeshCol::QuadGrid</a>
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Definition at line <a class="el" href="a06730.html#l00192">192</a> of file <a class="el" href="a06730.html">visual_collision_manager.h</a>.
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Referenced by <a class="el" href="a06729.html#l00370">build()</a>, and <a class="el" href="a06729.html#l00330">getCameraCollision()</a>. </td>
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<a class="anchor" name="NL3D_1_1CVisualCollisionManager_1_1CMeshColo2" doxytag="NL3D::CVisualCollisionManager::CMeshCol::QuadGridIt" ></a><p>
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<td class="md" nowrap valign="top"> <a class="el" href="a03273.html">CQuadGrid</a><<a class="el" href="a03708.html">CMeshCol</a>*>::CIterator <a class="el" href="a03708.html#NL3D_1_1CVisualCollisionManager_1_1CMeshColo2">NL3D::CVisualCollisionManager::CMeshCol::QuadGridIt</a>
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Definition at line <a class="el" href="a06730.html#l00190">190</a> of file <a class="el" href="a06730.html">visual_collision_manager.h</a>.
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Referenced by <a class="el" href="a06729.html#l00401">NL3D::CVisualCollisionManager::addMeshCollision()</a>. </td>
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<a class="anchor" name="NL3D_1_1CVisualCollisionManager_1_1CMeshColo3" doxytag="NL3D::CVisualCollisionManager::CMeshCol::Triangles" ></a><p>
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<td class="md" nowrap valign="top"> std::vector<<a class="el" href="a04558.html#a9">uint16</a>> <a class="el" href="a03708.html#NL3D_1_1CVisualCollisionManager_1_1CMeshColo3">NL3D::CVisualCollisionManager::CMeshCol::Triangles</a>
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Definition at line <a class="el" href="a06730.html#l00186">186</a> of file <a class="el" href="a06730.html">visual_collision_manager.h</a>. </td>
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<a class="anchor" name="NL3D_1_1CVisualCollisionManager_1_1CMeshColo4" doxytag="NL3D::CVisualCollisionManager::CMeshCol::Vertices" ></a><p>
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<td class="md" nowrap valign="top"> std::vector<<a class="el" href="a03128.html">CVector</a>> <a class="el" href="a03708.html#NL3D_1_1CVisualCollisionManager_1_1CMeshColo4">NL3D::CVisualCollisionManager::CMeshCol::Vertices</a>
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Definition at line <a class="el" href="a06730.html#l00185">185</a> of file <a class="el" href="a06730.html">visual_collision_manager.h</a>. </td>
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<hr>The documentation for this class was generated from the following files:<ul>
<li><a class="el" href="a06730.html">visual_collision_manager.h</a><li><a class="el" href="a06729.html">visual_collision_manager.cpp</a></ul>
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