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<h1>NL3D::CZoneTgtSmoother Class Reference</h1><code>#include <<a class="el" href="a06783.html">zone_tgt_smoother.h</a>></code>
<p>
<hr><a name="_details"></a><h2>Detailed Description</h2>
A class used to make Vertices coplanar IN or/and across zones. <dl compact><dt><b>Author:</b></dt><dd>Lionel Berenguier <p>
Nevrax France </dd></dl>
<dl compact><dt><b>Date:</b></dt><dd>2000 </dd></dl>
<p>
<p>
Definition at line <a class="el" href="a06783.html#l00048">48</a> of file <a class="el" href="a06783.html">zone_tgt_smoother.h</a>.<table border=0 cellpadding=0 cellspacing=0>
<tr><td></td></tr>
<tr><td colspan=2><br><h2>Public Member Functions</h2></td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top> </td><td class="memItemRight" valign=bottom><a class="el" href="a03765.html#NL3D_1_1CZoneTgtSmoothera0">CZoneTgtSmoother</a> ()</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Constructor. <a href="#NL3D_1_1CZoneTgtSmoothera0"></a><br><br></td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top>void </td><td class="memItemRight" valign=bottom><a class="el" href="a03765.html#NL3D_1_1CZoneTgtSmoothera1">makeVerticesCoplanar</a> (std::vector< <a class="el" href="a03738.html">CZoneInfo</a> > &zones)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Doit method. zones are modified. zones[0] is the center zones. Other are border zones. <a href="#NL3D_1_1CZoneTgtSmoothera1"></a><br><br></td></tr>
<tr><td colspan=2><br><h2>Private Types</h2></td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top>typedef TVertexMap::iterator </td><td class="memItemRight" valign=bottom><a class="el" href="a03765.html#NL3D_1_1CZoneTgtSmoothery0">ItVertexMap</a></td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top>typedef std::map< <a class="el" href="a04558.html#a14">sint</a>, <a class="el" href="a03768.html">CVertexInfo</a> > </td><td class="memItemRight" valign=bottom><a class="el" href="a03765.html#NL3D_1_1CZoneTgtSmoothery1">TVertexMap</a></td></tr>
<tr><td colspan=2><br><h2>Private Attributes</h2></td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top><a class="el" href="a03765.html#NL3D_1_1CZoneTgtSmoothery1">TVertexMap</a> </td><td class="memItemRight" valign=bottom><a class="el" href="a03765.html#NL3D_1_1CZoneTgtSmootherr0">VertexMap</a></td></tr>
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<hr><h2>Member Typedef Documentation</h2>
<a class="anchor" name="NL3D_1_1CZoneTgtSmoothery0" doxytag="NL3D::CZoneTgtSmoother::ItVertexMap" ></a><p>
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<td class="md" nowrap valign="top"> typedef TVertexMap::iterator <a class="el" href="a03765.html#NL3D_1_1CZoneTgtSmoothery0">NL3D::CZoneTgtSmoother::ItVertexMap</a><code> [private]</code>
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<p>
Definition at line <a class="el" href="a06783.html#l00109">109</a> of file <a class="el" href="a06783.html">zone_tgt_smoother.h</a>. </td>
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<a class="anchor" name="NL3D_1_1CZoneTgtSmoothery1" doxytag="NL3D::CZoneTgtSmoother::TVertexMap" ></a><p>
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<td class="md" nowrap valign="top"> typedef std::map<<a class="el" href="a04558.html#a14">sint</a>, <a class="el" href="a03768.html">CVertexInfo</a>> <a class="el" href="a03765.html#NL3D_1_1CZoneTgtSmoothery1">NL3D::CZoneTgtSmoother::TVertexMap</a><code> [private]</code>
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<p>
Definition at line <a class="el" href="a06783.html#l00108">108</a> of file <a class="el" href="a06783.html">zone_tgt_smoother.h</a>. </td>
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<hr><h2>Constructor & Destructor Documentation</h2>
<a class="anchor" name="NL3D_1_1CZoneTgtSmoothera0" doxytag="NL3D::CZoneTgtSmoother::CZoneTgtSmoother" ></a><p>
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<td class="md" nowrap valign="top"> NL3D::CZoneTgtSmoother::CZoneTgtSmoother </td>
<td class="md" valign="top">( </td>
<td class="mdname1" valign="top" nowrap> </td>
<td class="md" valign="top"> ) </td>
<td class="md" nowrap><code> [inline]</code></td>
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<p>
Constructor.
<p>
<p>
Definition at line <a class="el" href="a06783.html#l00053">53</a> of file <a class="el" href="a06783.html">zone_tgt_smoother.h</a>.
<p>
<div class="fragment"><pre>00053 {}
</pre></div> </td>
</tr>
</table>
<hr><h2>Member Function Documentation</h2>
<a class="anchor" name="NL3D_1_1CZoneTgtSmoothera1" doxytag="NL3D::CZoneTgtSmoother::makeVerticesCoplanar" ></a><p>
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<td class="md" nowrap valign="top"> void NL3D::CZoneTgtSmoother::makeVerticesCoplanar </td>
<td class="md" valign="top">( </td>
<td class="md" nowrap valign="top">std::vector< <a class="el" href="a03738.html">CZoneInfo</a> > & </td>
<td class="mdname1" valign="top" nowrap> <em>zones</em> </td>
<td class="md" valign="top"> ) </td>
<td class="md" nowrap></td>
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<p>
Doit method. zones are modified. zones[0] is the center zones. Other are border zones.
<p>
<p>
Definition at line <a class="el" href="a06782.html#l00039">39</a> of file <a class="el" href="a06782.html">zone_tgt_smoother.cpp</a>.
<p>
References <a class="el" href="a06760.html#l00126">NL3D::CPatchInfo::BaseVertices</a>, <a class="el" href="a06760.html#l00236">NL3D::CPatchInfo::BindEdges</a>, <a class="el" href="a06760.html#l00068">NL3D::CBorderVertex::CurrentVertex</a>, <a class="el" href="a06783.html#l00078">NL3D::CZoneTgtSmoother::CTangentId::EdgeId</a>, <a class="el" href="a06760.html#l00192">NL3D::CPatchInfo::getSmoothFlag()</a>, <a class="el" href="a06783.html#l00069">NL3D::CZoneTgtSmoother::CPatchId::IdVert</a>, <a class="el" href="a05479.html#l00081">NL3D::CBezierPatch::Interiors</a>, <a class="el" href="a06760.html#l00072">NL3D::CBorderVertex::NeighborVertex</a>, <a class="el" href="a06760.html#l00070">NL3D::CBorderVertex::NeighborZoneId</a>, <a class="el" href="a05622.html#l00290">nlassert</a>, <a class="el" href="a05622.html#l00111">nlinfo</a>, <a class="el" href="a06682.html#l00115">NLMISC::CVector::norm()</a>, <a class="el" href="a06783.html#l00100">NL3D::CZoneTgtSmoother::CVertexInfo::OnBorder</a>, <a class="el" href="a06760.html#l00120">NL3D::CPatchInfo::Patch</a>, <a class="el" href="a06783.html#l00067">NL3D::CZoneTgtSmoother::CPatchId::Patch</a>, <a class="el" href="a06783.html#l00077">NL3D::CZoneTgtSmoother::CTangentId::PatchId</a>, <a class="el" href="a06783.html#l00065">NL3D::CZoneTgtSmoother::CPatchId::PatchId</a>, <a class="el" href="a06783.html#l00080">NL3D::CZoneTgtSmoother::CTangentId::Patchs</a>, <a class="el" href="a06783.html#l00099">NL3D::CZoneTgtSmoother::CVertexInfo::Patchs</a>, <a class="el" href="a05981.html#l00104">sint</a>, <a class="el" href="a06783.html#l00082">NL3D::CZoneTgtSmoother::CTangentId::Tangent</a>, <a class="el" href="a05479.html#l00079">NL3D::CBezierPatch::Tangents</a>, <a class="el" href="a06783.html#l00076">NL3D::CZoneTgtSmoother::CTangentId::ZoneId</a>, and <a class="el" href="a06783.html#l00064">NL3D::CZoneTgtSmoother::CPatchId::ZoneId</a>.
<p>
<div class="fragment"><pre>00040 {
00041 <a class="code" href="a04558.html#a14">sint</a> i,j, numZone;
00042 <a class="code" href="a04558.html#a14">sint</a> centerZoneId;
00043
00044 <a class="code" href="a04199.html#a6">nlassert</a>(zones.size()>=1);
00045 centerZoneId= zones[0].ZoneId;
00046
00047 <span class="comment">// 0. CenterZone.</span>
00048 <span class="comment">//===============</span>
00049 <span class="comment">// First, make connectivity patch/vertex</span>
00050 <span class="keywordflow">for</span>(i=0;i<(<a class="code" href="a04558.html#a14">sint</a>)zones[0].Patchs.size();i++)
00051 {
00052 CPatchInfo &pa= zones[0].Patchs[i];
00053
00054 <span class="keywordflow">for</span>(j=0;j<4;j++)
00055 {
00056 <a class="code" href="a04558.html#a14">sint</a> vtx= pa.BaseVertices[j];
00057 CPatchId pid;
00058 pid.ZoneId= centerZoneId;
00059 pid.PatchId= i;
00060 pid.Patch= &pa;
00061 pid.IdVert= j;
00062 <a class="code" href="a03765.html#NL3D_1_1CZoneTgtSmootherr0">VertexMap</a>[vtx].Patchs.push_back(pid);
00063 }
00064 }
00065 <span class="comment">// Second, what vertices of this zone are one border?</span>
00066 <span class="keywordflow">for</span>(i=0;i<(<a class="code" href="a04558.html#a14">sint</a>)zones[0].BorderVertices.size();i++)
00067 {
00068 CBorderVertex &bv= zones[0].BorderVertices[i];
00069 <a class="code" href="a04558.html#a14">sint</a> vtx= bv.CurrentVertex;
00070 <a class="code" href="a03765.html#NL3D_1_1CZoneTgtSmootherr0">VertexMap</a>[vtx].OnBorder= <span class="keyword">true</span>;
00071 }
00072
00073 <span class="comment">// 1. Neighbor zones.</span>
00074 <span class="comment">//===================</span>
00075 map<sint, sint> tempMap;
00076 <span class="keywordflow">for</span>(numZone= 1; numZone<(<a class="code" href="a04558.html#a14">sint</a>)zones.size(); numZone++)
00077 {
00078 <a class="code" href="a04558.html#a14">sint</a> adjZoneId= zones[numZone].ZoneId;
00079
00080 tempMap.clear();
00081 <span class="comment">// Tests which vertices points on the center zone.</span>
00082 <span class="keywordflow">for</span>(i=0;i<(<a class="code" href="a04558.html#a14">sint</a>)zones[numZone].BorderVertices.size();i++)
00083 {
00084 CBorderVertex &bv= zones[numZone].BorderVertices[i];
00085
00086 <span class="keywordflow">if</span>(bv.NeighborZoneId== centerZoneId)
00087 {
00088 tempMap[bv.CurrentVertex]= bv.NeighborVertex;
00089 }
00090 }
00091 <span class="comment">// Tests patchs which points on center zone.</span>
00092 <span class="keywordflow">for</span>(i=0;i<(<a class="code" href="a04558.html#a14">sint</a>)zones[numZone].Patchs.size();i++)
00093 {
00094 CPatchInfo &pa= zones[numZone].Patchs[i];
00095
00096 <span class="keywordflow">for</span>(j=0;j<4;j++)
00097 {
00098 <a class="code" href="a04558.html#a14">sint</a> vtx= pa.BaseVertices[j];
00099 <span class="keywordflow">if</span>(tempMap.find(vtx)!=tempMap.end())
00100 {
00101 CPatchId pid;
00102 pid.ZoneId= adjZoneId;
00103 pid.PatchId= i;
00104 pid.Patch= &pa;
00105 pid.IdVert= j;
00106 <span class="comment">// Fill the vertex of the center zone.</span>
00107 <a class="code" href="a03765.html#NL3D_1_1CZoneTgtSmootherr0">VertexMap</a>[tempMap[vtx]].Patchs.push_back(pid);
00108 }
00109 }
00110 }
00111
00112 }
00113
00114 <span class="comment">// 2. Process each vertex.</span>
00115 <span class="comment">//========================</span>
00116 <a class="code" href="a03765.html#NL3D_1_1CZoneTgtSmoothery0">ItVertexMap</a> itVert;
00117 <span class="keywordflow">for</span>(itVert= <a class="code" href="a03765.html#NL3D_1_1CZoneTgtSmootherr0">VertexMap</a>.begin(); itVert!=<a class="code" href="a03765.html#NL3D_1_1CZoneTgtSmootherr0">VertexMap</a>.end(); itVert++)
00118 {
00119 CVertexInfo &vert= itVert->second;
00120
00121 <span class="comment">// a. verify if coplanar is possible.</span>
00122 <span class="comment">//===================================</span>
00123
00124 <span class="comment">// \todo yoyo: later: do it too on non border vertices if wanted (with a normal threshold...).</span>
00125 <span class="keywordflow">if</span>(!vert.OnBorder)
00126 <span class="keywordflow">continue</span>;
00127 <span class="comment">// \todo yoyo: later: formula with 3, 5 ... patchs around the vertex.</span>
00128 <span class="keywordflow">if</span>(vert.Patchs.size()!=4)
00129 <span class="keywordflow">continue</span>;
00130
00131 <span class="comment">// Test if there is no bind 1/x on this patch, around this vertex.</span>
00132 <span class="comment">// \todo yoyo: later: binds should works...</span>
00133 std::list<CPatchId>::iterator itPatch;
00134 <span class="keywordtype">bool</span> bindFound= <span class="keyword">false</span>;
00135 <span class="keywordflow">for</span>(itPatch= vert.Patchs.begin(); itPatch!= vert.Patchs.end(); itPatch++)
00136 {
00137 <span class="comment">// Tests the two edges around the vertex (before: e0, and after: e1).</span>
00138 <a class="code" href="a04558.html#a14">sint</a> e0= (itPatch->IdVert+4-1)%4;
00139 <a class="code" href="a04558.html#a14">sint</a> e1= itPatch->IdVert;
00140
00141 <span class="keywordflow">if</span>(itPatch->Patch->BindEdges[e0].NPatchs!= 1 || itPatch->Patch->BindEdges[e1].NPatchs!= 1)
00142 {
00143 bindFound= <span class="keyword">true</span>;
00144 <span class="keywordflow">break</span>;
00145 }
00146 }
00147 <span class="keywordflow">if</span>(bindFound)
00148 <span class="keywordflow">continue</span>;
00149
00150
00151
00152 <span class="comment">// b. maps patchs on tangents.</span>
00153 <span class="comment">//=========================</span>
00154 vector<CTangentId> tangents;
00155 <span class="keywordflow">for</span>(itPatch= vert.Patchs.begin(); itPatch!= vert.Patchs.end(); itPatch++)
00156 {
00157 CPatchInfo &pa= *(itPatch->Patch);
00158 <span class="comment">// The edges, before and after the veterx.</span>
00159 <a class="code" href="a04558.html#a14">sint</a> edgeNum[2]= {(itPatch->IdVert+4-1)%4, itPatch->IdVert };
00160 <span class="comment">// The tangents, before and after the veterx.</span>
00161 <a class="code" href="a04558.html#a14">sint</a> tgtNum[2]= {(itPatch->IdVert*2+8-1)%8, itPatch->IdVert*2 };
00162
00163 <span class="comment">// For the 2 edges around this vertex.</span>
00164 <span class="keywordflow">for</span>(<a class="code" href="a04558.html#a14">sint</a> ed= 0; ed<2;ed++)
00165 {
00166 <a class="code" href="a04558.html#a14">sint</a> patchId, zoneId, edgeId;
00167 <a class="code" href="a04558.html#a14">sint</a> tgt;
00168
00169 <span class="comment">// get neighbor edge id.</span>
00170 zoneId= pa.BindEdges[ edgeNum[ed] ].ZoneId;
00171 patchId= pa.BindEdges[ edgeNum[ed] ].Next[0];
00172 edgeId= pa.BindEdges[ edgeNum[ed] ].Edge[0];
00173 <span class="comment">// Search if tangent already inserted, mapped to this "neighbor edge".</span>
00174 <span class="keywordflow">for</span>(tgt= 0; tgt<(<a class="code" href="a04558.html#a14">sint</a>)tangents.size();tgt++)
00175 {
00176 <span class="keywordflow">if</span>(tangents[tgt].ZoneId==zoneId && tangents[tgt].PatchId==patchId && tangents[tgt].EdgeId==edgeId)
00177 <span class="keywordflow">break</span>;
00178 }
00179 <span class="comment">// If not found, add the tangent, and map ME to it.</span>
00180 <span class="keywordflow">if</span>(tgt==(<a class="code" href="a04558.html#a14">sint</a>)tangents.size())
00181 {
00182 CTangentId tangent;
00183 <span class="comment">// Set OUR edge Id.</span>
00184 tangent.ZoneId= itPatch->ZoneId;
00185 tangent.PatchId= itPatch->PatchId;
00186 tangent.EdgeId= edgeNum[ed];
00187 <span class="comment">// Get the tangent, before or after the vertex.</span>
00188 tangent.Tangent= pa.Patch.Tangents[ tgtNum[ed] ];
00189 <span class="comment">// Which patchs this edge share. (0 is those which insert this tgt)</span>
00190 tangent.Patchs[0]= &pa;
00191 tangents.push_back(tangent);
00192 }
00193 <span class="keywordflow">else</span>
00194 {
00195 <span class="comment">// Which patchs this edge share. (0 is those which access this tgt)</span>
00196 tangents[tgt].Patchs[1]= &pa;
00197 }
00198 <span class="comment">// Map the patch to this tangent.</span>
00199 itPatch->Tangents[ed]= tgt;
00200
00201 }
00202 }
00203
00204 <span class="comment">// There should be 4 tangents.</span>
00205 <span class="keywordflow">if</span> (tangents.size()!=4)
00206 {
00207 <a class="code" href="a04199.html#a1">nlinfo</a> (<span class="stringliteral">"ERROR: vertex %d should have 4 tangents. It got %d. (MAXINDICES +1!!)"</span>, itVert->first, tangents.size());
00208 <span class="keywordflow">continue</span>;
00209 }
00210
00211
00212 <span class="comment">// c. get the vertex.</span>
00213 <span class="comment">//===================</span>
00214 CVector vertexValue;
00215 itPatch= vert.Patchs.begin();
00216 vertexValue= itPatch->Patch->Patch.Vertices[itPatch->IdVert];
00217
00218
00219 <span class="comment">// d. project the tangents.</span>
00220 <span class="comment">//=========================</span>
00221 <span class="comment">// better coplanar than Max... (with orthogonal angles: use p0/p1).</span>
00222 <span class="keywordflow">for</span>(i=0;i<(<a class="code" href="a04558.html#a14">sint</a>)tangents.size();i++)
00223 {
00224 <span class="comment">// For following tangents, search the opposite.</span>
00225 <span class="comment">// Begin at i+1 so we are sure to do this only one time.</span>
00226 <span class="keywordflow">for</span>(j=i+1;j<(<a class="code" href="a04558.html#a14">sint</a>)tangents.size();j++)
00227 {
00228 <span class="keywordflow">if</span>(tangents[i].isOppositeOf(tangents[j]))
00229 {
00230 CVector &tgt0= tangents[i].Tangent;
00231 CVector &tgt1= tangents[j].Tangent;
00232 <span class="comment">// Colinear the tangents. Must keep the length of vectors.</span>
00233 <span class="keywordtype">float</span> l0= (tgt0-vertexValue).norm();
00234 <span class="keywordtype">float</span> l1= (tgt1-vertexValue).norm();
00235 <span class="comment">// Average the tangents. Normalize them before, to keep much as possible the orientation.</span>
00236 CVector d0= (vertexValue-tgt0).normed();
00237 CVector d1= (tgt1-vertexValue).normed();
00238 CVector dir= (d0+d1).normed();
00239
00240 <span class="comment">// Copy to tangents.</span>
00241 tgt0= vertexValue-dir*l0;
00242 tgt1= vertexValue+dir*l1;
00243 }
00244 }
00245 }
00246
00247
00248 <span class="comment">// e. assign tangents to patchs, rebuild interior.</span>
00249 <span class="comment">//==============================</span>
00250 <span class="keywordflow">for</span>(itPatch= vert.Patchs.begin(); itPatch!= vert.Patchs.end(); itPatch++)
00251 {
00252 CPatchInfo &pa= *(itPatch->Patch);
00253 <span class="comment">// The tangents, before and after the vertex.</span>
00254 <a class="code" href="a04558.html#a14">sint</a> tgtNum[2]= {(itPatch->IdVert*2+8-1)%8, itPatch->IdVert*2 };
00255 <a class="code" href="a04558.html#a14">sint</a> t0= tgtNum[0];
00256 <a class="code" href="a04558.html#a14">sint</a> t1= tgtNum[1];
00257 <a class="code" href="a04558.html#a14">sint</a> smoothEdge0= pa.getSmoothFlag (t0/2);
00258 <a class="code" href="a04558.html#a14">sint</a> smoothEdge1= pa.getSmoothFlag (t1/2);
00259
00260 <span class="comment">// Smooth this edge ?</span>
00261 <span class="keywordflow">if</span> (smoothEdge0)
00262 pa.Patch.Tangents[t0]= tangents[itPatch->Tangents[0]].Tangent;
00263 <span class="keywordflow">if</span> (smoothEdge1)
00264 pa.Patch.Tangents[t1]= tangents[itPatch->Tangents[1]].Tangent;
00265
00266 <span class="comment">// Setup the coplanared interior. just the sum of 2 vector tangents.</span>
00267 <span class="keywordflow">if</span> (smoothEdge0&&smoothEdge1)
00268 pa.Patch.Interiors[itPatch->IdVert]= pa.Patch.Tangents[t0] + pa.Patch.Tangents[t1] - vertexValue;
00269 }
00270 }
00271 }
</pre></div> </td>
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<hr><h2>Field Documentation</h2>
<a class="anchor" name="NL3D_1_1CZoneTgtSmootherr0" doxytag="NL3D::CZoneTgtSmoother::VertexMap" ></a><p>
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<td class="md" nowrap valign="top"> <a class="el" href="a03765.html#NL3D_1_1CZoneTgtSmoothery1">TVertexMap</a> <a class="el" href="a03765.html#NL3D_1_1CZoneTgtSmootherr0">NL3D::CZoneTgtSmoother::VertexMap</a><code> [private]</code>
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<p>
<p>
Definition at line <a class="el" href="a06783.html#l00112">112</a> of file <a class="el" href="a06783.html">zone_tgt_smoother.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="a06783.html">zone_tgt_smoother.h</a><li><a class="el" href="a06782.html">zone_tgt_smoother.cpp</a></ul>
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