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<hr><h1>load_balancing_trav.h</h1><a href="load__balancing__trav_8h.html">Go to the documentation of this file.</a><div class="fragment"><pre>00001 
00007 <font class="comment">/* Copyright, 2001 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_LOAD_BALANCING_TRAV_H</font>
00027 <font class="preprocessor"></font><font class="preprocessor">#define NL_LOAD_BALANCING_TRAV_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="matrix_8h.html">nel/misc/matrix.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="trav__scene_8h.html">3d/trav_scene.h</a>"</font>
00033 <font class="preprocessor">#include "<a class="code" href="value__smoother_8h.html">nel/misc/value_smoother.h</a>"</font>
00034 
00035 
00036 <font class="keyword">namespace </font>NL3D 
00037 {
00038 
00039 
00040 <font class="keyword">using</font> <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a>;
00041 <font class="keyword">using</font> <a class="code" href="classNLMISC_1_1CPlane.html">NLMISC::CPlane</a>;
00042 <font class="keyword">using</font> <a class="code" href="classNLMISC_1_1CMatrix.html">NLMISC::CMatrix</a>;
00043 
00044 
00045 <font class="keyword">class </font>IBaseLoadBalancingObs;
00046 <font class="keyword">class </font>IBaseHrcObs;
00047 <font class="keyword">class </font>IBaseClipObs;
00048 <font class="keyword">class </font>CClipTrav;
00049 <font class="keyword">class </font>CLoadBalancingTrav;
00050 
00051 
00052 <font class="comment">// ***************************************************************************</font>
00053 <font class="comment">// ClassIds.</font>
00054 <font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CClassId.html">NLMISC::CClassId</a>          <a class="code" href="namespaceNL3D.html#a93">LoadBalancingTravId</a>=<a class="code" href="classNLMISC_1_1CClassId.html">NLMISC::CClassId</a>(0x7181548, 0x36ad3c10);
00055 
00056 
00057 <font class="comment">// ***************************************************************************</font>
<a name="l00067"></a><a class="code" href="classNL3D_1_1CLoadBalancingGroup.html">00067</a> <font class="comment"></font><font class="keyword">class </font>CLoadBalancingGroup
00068 {
00069 <font class="keyword">public</font>:
00070         <font class="comment">// see CScene.</font>
<a name="l00071"></a><a class="code" href="classNL3D_1_1CLoadBalancingGroup.html#s4">00071</a>         <font class="keyword">enum</font>                    <a class="code" href="classNL3D_1_1CLoadBalancingGroup.html#s4">TPolygonBalancingMode</a> {<a class="code" href="classNL3D_1_1CLoadBalancingGroup.html#s4s0">PolygonBalancingOff</a>=0, <a class="code" href="classNL3D_1_1CLoadBalancingGroup.html#s4s1">PolygonBalancingOn</a>, <a class="code" href="classNL3D_1_1CLoadBalancingGroup.html#s4s2">PolygonBalancingClamp</a>, <a class="code" href="classNL3D_1_1CLoadBalancingGroup.html#s4s3">CountPolygonBalancing</a> };
00072 
00073 <font class="keyword">public</font>:
00074         <font class="comment">// Name of the group.</font>
<a name="l00075"></a><a class="code" href="classNL3D_1_1CLoadBalancingGroup.html#m0">00075</a>         std::string             <a class="code" href="classNL3D_1_1CLoadBalancingGroup.html#m0">Name</a>;
00076 
00077 <font class="keyword">public</font>:
00078         <a class="code" href="classNL3D_1_1CLoadBalancingGroup.html#a0">CLoadBalancingGroup</a>();
00079 
<a name="l00080"></a><a class="code" href="classNL3D_1_1CLoadBalancingGroup.html#a1">00080</a>         <font class="keywordtype">void</font>                            <a class="code" href="classNL3D_1_1CLoadBalancingGroup.html#a1">setNbFaceWanted</a>(uint nFaces) {<a class="code" href="classNL3D_1_1CLoadBalancingGroup.html#o2">_NbFaceWanted</a>= nFaces;}
<a name="l00081"></a><a class="code" href="classNL3D_1_1CLoadBalancingGroup.html#a2">00081</a>         uint                            <a class="code" href="classNL3D_1_1CLoadBalancingGroup.html#a2">getNbFaceWanted</a>()<font class="keyword"> const </font>{<font class="keywordflow">return</font> <a class="code" href="classNL3D_1_1CLoadBalancingGroup.html#o2">_NbFaceWanted</a>;}
00082 
<a name="l00083"></a><a class="code" href="classNL3D_1_1CLoadBalancingGroup.html#a3">00083</a>         <font class="keywordtype">float</font>                           <a class="code" href="classNL3D_1_1CLoadBalancingGroup.html#a3">getNbFaceAsked</a> ()<font class="keyword"> const </font>{<font class="keywordflow">return</font> <a class="code" href="classNL3D_1_1CLoadBalancingGroup.html#o1">_NbFacePass0</a>;}
00084 
00085 <font class="keyword">public</font>:
00086         <font class="comment">// ONLY FOR OBSERVERS</font>
<a name="l00087"></a><a class="code" href="classNL3D_1_1CLoadBalancingGroup.html#a4">00087</a>         <font class="keywordtype">void</font>                            <a class="code" href="classNL3D_1_1CLoadBalancingGroup.html#a4">addNbFacesPass0</a>(<font class="keywordtype">float</font> <a class="code" href="driver__opengl__extension__def_8h.html#a368">v</a>) {<a class="code" href="classNL3D_1_1CLoadBalancingGroup.html#o1">_NbFacePass0</a>+= <a class="code" href="driver__opengl__extension__def_8h.html#a368">v</a>;}
00088 
<a name="l00090"></a><a class="code" href="classNL3D_1_1CLoadBalancingGroup.html#a5">00090</a>         <font class="keywordtype">float</font>                           <a class="code" href="classNL3D_1_1CLoadBalancingGroup.html#a5">computeModelNbFace</a>(<font class="keywordtype">float</font> faceIn)        {<font class="keywordflow">return</font> faceIn * <a class="code" href="classNL3D_1_1CLoadBalancingGroup.html#o3">_FaceRatio</a>;}
00091 
00092 <font class="keyword">private</font>:
<a name="l00093"></a><a class="code" href="classNL3D_1_1CLoadBalancingGroup.html#l0">00093</a>         <font class="keyword">friend</font> <font class="keyword">class    </font><a class="code" href="classNL3D_1_1CLoadBalancingGroup.html#l0">CLoadBalancingTrav</a>;
00094 
00095         <font class="comment">// DefaultGroup means LoadBalancing disabled.</font>
<a name="l00096"></a><a class="code" href="classNL3D_1_1CLoadBalancingGroup.html#o0">00096</a>         <font class="keywordtype">bool</font>                            <a class="code" href="classNL3D_1_1CLoadBalancingGroup.html#o0">_DefaultGroup</a>;
00097 
00098         <font class="comment">// The number of faces count in Pass0.</font>
<a name="l00099"></a><a class="code" href="classNL3D_1_1CLoadBalancingGroup.html#o1">00099</a>         <font class="keywordtype">float</font>                           <a class="code" href="classNL3D_1_1CLoadBalancingGroup.html#o1">_NbFacePass0</a>;
00100 
00101         <font class="comment">// The number of face the user want</font>
<a name="l00102"></a><a class="code" href="classNL3D_1_1CLoadBalancingGroup.html#o2">00102</a>         uint                            <a class="code" href="classNL3D_1_1CLoadBalancingGroup.html#o2">_NbFaceWanted</a>;
00103 
00104         <font class="comment">// use this ratio into Pass 1 to reduce faces.</font>
<a name="l00105"></a><a class="code" href="classNL3D_1_1CLoadBalancingGroup.html#o3">00105</a>         <font class="keywordtype">float</font>                           <a class="code" href="classNL3D_1_1CLoadBalancingGroup.html#o3">_FaceRatio</a>;
00106 
00107         <font class="comment">// To smooth the faceRatio</font>
<a name="l00108"></a><a class="code" href="classNL3D_1_1CLoadBalancingGroup.html#o4">00108</a>         <a class="code" href="classNLMISC_1_1CValueSmoother.html">NLMISC::CValueSmoother</a>          <a class="code" href="classNL3D_1_1CLoadBalancingGroup.html#o4">_ValueSmoother</a>;
00109         <font class="comment">// Balancing Mode</font>
<a name="l00110"></a><a class="code" href="classNL3D_1_1CLoadBalancingGroup.html#o5">00110</a>         <a class="code" href="classNL3D_1_1CLoadBalancingGroup.html#s4">TPolygonBalancingMode</a>           <a class="code" href="classNL3D_1_1CLoadBalancingGroup.html#o5">_PrecPolygonBalancingMode</a>;
00111 
00112         <font class="comment">// as it sounds..</font>
00113         <font class="keywordtype">void</font>                            <a class="code" href="classNL3D_1_1CLoadBalancingGroup.html#c0">computeRatioAndSmooth</a>(<a class="code" href="classNL3D_1_1CLoadBalancingGroup.html#s4">TPolygonBalancingMode</a> polMode);
00114 };
00115 
00116 
00117 
00118 <font class="comment">// ***************************************************************************</font>
<a name="l00129"></a><a class="code" href="classNL3D_1_1CLoadBalancingTrav.html">00129</a> <font class="comment"></font><font class="keyword">class </font>CLoadBalancingTrav : <font class="keyword">public</font> ITravCameraScene
00130 {
00131 <font class="keyword">public</font>:
00132 
00134         <a class="code" href="classNL3D_1_1CLoadBalancingTrav.html#a0">CLoadBalancingTrav</a>();
00135 
00136 
00138 
00139         IObs                            *<a class="code" href="classNL3D_1_1CLoadBalancingTrav.html#z527_0">createDefaultObs</a>() <font class="keyword">const</font>;
<a name="l00140"></a><a class="code" href="classNL3D_1_1CLoadBalancingTrav.html#z527_1">00140</a>         NLMISC::CClassId        <a class="code" href="classNL3D_1_1CLoadBalancingTrav.html#z527_1">getClassId</a>()<font class="keyword"> const </font>{<font class="keywordflow">return</font> LoadBalancingTravId;}
<a name="l00144"></a><a class="code" href="classNL3D_1_1CLoadBalancingTrav.html#z527_2">00144</a>         sint                            <a class="code" href="classNL3D_1_1CLoadBalancingTrav.html#z527_2">getRenderOrder</a>()<font class="keyword"> const </font>{<font class="keywordflow">return</font> 2300;}
00145         <font class="keywordtype">void</font>                            <a class="code" href="classNL3D_1_1CLoadBalancingTrav.html#z527_3">traverse</a>();
00147 
00148 
00150 
00151 
00152         <font class="comment">// The PolygonBalancingMode</font>
<a name="l00153"></a><a class="code" href="classNL3D_1_1CLoadBalancingTrav.html#z528_0">00153</a>         <font class="keyword">typedef</font> CLoadBalancingGroup::TPolygonBalancingMode      <a class="code" href="classNL3D_1_1CLoadBalancingTrav.html#z528_0">TPolygonBalancingMode</a>;
<a name="l00154"></a><a class="code" href="classNL3D_1_1CLoadBalancingTrav.html#z528_5">00154</a>         <a class="code" href="classNL3D_1_1CLoadBalancingTrav.html#z528_0">TPolygonBalancingMode</a>   <a class="code" href="classNL3D_1_1CLoadBalancingTrav.html#z528_5">PolygonBalancingMode</a>;
00155 
00156 
00160         <font class="keywordtype">void</font>                            <a class="code" href="classNL3D_1_1CLoadBalancingTrav.html#z528_1">setGroupNbFaceWanted</a>(<font class="keyword">const</font> std::string &amp;group, uint nFaces);
00161 
00165         uint                            <a class="code" href="classNL3D_1_1CLoadBalancingTrav.html#z528_2">getGroupNbFaceWanted</a>(<font class="keyword">const</font> std::string &amp;group);
00166 
00167 
00171         <font class="keywordtype">float</font>                           <a class="code" href="classNL3D_1_1CLoadBalancingTrav.html#z528_3">getGroupNbFaceAsked</a> (<font class="keyword">const</font> std::string &amp;group) <font class="keyword">const</font>;
00172 
00174         <font class="keywordtype">float</font>                           <a class="code" href="classNL3D_1_1CLoadBalancingTrav.html#z528_4">getNbFaceAsked</a> () <font class="keyword">const</font>;
00175 
00177 
00178 
00179 <font class="keyword">public</font>:
00180         <font class="comment">// ONLY FOR OBSERVERS</font>
<a name="l00181"></a><a class="code" href="classNL3D_1_1CLoadBalancingTrav.html#a1">00181</a>         uint                            <a class="code" href="classNL3D_1_1CLoadBalancingTrav.html#a1">getLoadPass</a>() {<font class="keywordflow">return</font> <a class="code" href="classNL3D_1_1CLoadBalancingTrav.html#o0">_LoadPass</a>;}
00182 
<a name="l00183"></a><a class="code" href="classNL3D_1_1CLoadBalancingTrav.html#a2">00183</a>         CLoadBalancingGroup     *<a class="code" href="classNL3D_1_1CLoadBalancingTrav.html#a2">getDefaultGroup</a>() {<font class="keywordflow">return</font> <a class="code" href="classNL3D_1_1CLoadBalancingTrav.html#o2">_DefaultGroup</a>;}
00184 
00185         <font class="comment">// Get a group by name, create if needed.</font>
00186         CLoadBalancingGroup     *<a class="code" href="classNL3D_1_1CLoadBalancingTrav.html#a3">getOrCreateGroup</a>(<font class="keyword">const</font> std::string &amp;group);
00187 
00188 
00189         <font class="comment">// For clipTrav. cleared at beginning of CClipTrav::traverse</font>
00190         <font class="keywordtype">void</font>                            <a class="code" href="classNL3D_1_1CLoadBalancingTrav.html#a4">clearVisibleList</a>();
00191 
00192         <font class="comment">// For ClipObservers only. NB: list is cleared at begining of traverse().</font>
00193         <font class="keywordtype">void</font>                            <a class="code" href="classNL3D_1_1CLoadBalancingTrav.html#a5">addVisibleObs</a>(IBaseLoadBalancingObs *obs);
00194 
00195 <font class="comment">// **************</font>
00196 <font class="keyword">private</font>:
00197         <font class="comment">// Pass: 0 (compute faceCount from all models) or 1 (setup wanted faceCount).</font>
<a name="l00198"></a><a class="code" href="classNL3D_1_1CLoadBalancingTrav.html#o0">00198</a>         uint                            <a class="code" href="classNL3D_1_1CLoadBalancingTrav.html#o0">_LoadPass</a>;
00199 
00200         <font class="comment">// The sum of all Pass0 groups.</font>
<a name="l00201"></a><a class="code" href="classNL3D_1_1CLoadBalancingTrav.html#o1">00201</a>         <font class="keywordtype">float</font>                           <a class="code" href="classNL3D_1_1CLoadBalancingTrav.html#o1">_SumNbFacePass0</a>;
00202 
00203         <font class="comment">// The loadBalancing balance only visible objects.</font>
00204         <font class="keywordtype">void</font>                            <a class="code" href="classNL3D_1_1CLoadBalancingTrav.html#c0">traverseVisibilityList</a>();
00205 
00206 
00207         <font class="comment">// The groups.</font>
<a name="l00208"></a><a class="code" href="classNL3D_1_1CLoadBalancingTrav.html#o2">00208</a>         CLoadBalancingGroup     *<a class="code" href="classNL3D_1_1CLoadBalancingTrav.html#o2">_DefaultGroup</a>;
<a name="l00209"></a><a class="code" href="classNL3D_1_1CLoadBalancingTrav.html#u0">00209</a>         <font class="keyword">typedef</font> std::map&lt;std::string, CLoadBalancingGroup&gt;      <a class="code" href="classNL3D_1_1CLoadBalancingTrav.html#u0">TGroupMap</a>;
<a name="l00210"></a><a class="code" href="classNL3D_1_1CLoadBalancingTrav.html#u1">00210</a>         <font class="keyword">typedef</font> TGroupMap::iterator                                                     <a class="code" href="classNL3D_1_1CLoadBalancingTrav.html#u1">ItGroupMap</a>;
<a name="l00211"></a><a class="code" href="classNL3D_1_1CLoadBalancingTrav.html#o3">00211</a>         <a class="code" href="classNL3D_1_1CLoadBalancingTrav.html#u0">TGroupMap</a>                       <a class="code" href="classNL3D_1_1CLoadBalancingTrav.html#o3">_GroupMap</a>;
00212 
00213         <font class="comment">// traverse list of model visible and usefull to loadBalance.</font>
<a name="l00214"></a><a class="code" href="classNL3D_1_1CLoadBalancingTrav.html#o4">00214</a>         std::vector&lt;IBaseLoadBalancingObs*&gt;     <a class="code" href="classNL3D_1_1CLoadBalancingTrav.html#o4">_VisibleList</a>;
00215 
00216 };
00217 
00218 
00219 <font class="comment">// ***************************************************************************</font>
<a name="l00236"></a><a class="code" href="classNL3D_1_1IBaseLoadBalancingObs.html">00236</a> <font class="comment"></font><font class="keyword">class </font>IBaseLoadBalancingObs : <font class="keyword">public</font> IObs
00237 {
00238 <font class="keyword">public</font>:
<a name="l00240"></a><a class="code" href="classNL3D_1_1IBaseLoadBalancingObs.html#m0">00240</a>         IBaseHrcObs             *<a class="code" href="classNL3D_1_1IBaseLoadBalancingObs.html#m0">HrcObs</a>;
<a name="l00241"></a><a class="code" href="classNL3D_1_1IBaseLoadBalancingObs.html#m1">00241</a>         IBaseClipObs    *<a class="code" href="classNL3D_1_1IBaseLoadBalancingObs.html#m1">ClipObs</a>;
00242 
00243         <font class="comment">// Which group owns this model</font>
<a name="l00244"></a><a class="code" href="classNL3D_1_1IBaseLoadBalancingObs.html#m2">00244</a>         CLoadBalancingGroup             *<a class="code" href="classNL3D_1_1IBaseLoadBalancingObs.html#m2">LoadBalancingGroup</a>;
00245 
00246 <font class="keyword">public</font>:
00247 
<a name="l00249"></a><a class="code" href="classNL3D_1_1IBaseLoadBalancingObs.html#a0">00249</a>         <a class="code" href="classNL3D_1_1IBaseLoadBalancingObs.html#a0">IBaseLoadBalancingObs</a>()
00250         {
00251                 <a class="code" href="classNL3D_1_1IBaseLoadBalancingObs.html#m0">HrcObs</a>=NULL;
00252                 <a class="code" href="classNL3D_1_1IBaseLoadBalancingObs.html#m1">ClipObs</a>= NULL;
00253         }
00255         <font class="keyword">virtual</font> <font class="keywordtype">void</font>    <a class="code" href="classNL3D_1_1IBaseLoadBalancingObs.html#a1">init</a>();
00256 
00257 
00259 
00260         <font class="keyword">virtual</font> <font class="keywordtype">void</font>    <a class="code" href="classNL3D_1_1IBaseLoadBalancingObs.html#z529_0">traverse</a>(<a class="code" href="classNL3D_1_1IObs.html#a0">IObs</a> *caller) =0;
00262 
00263 
00264 };
00265 
00266 
00267 <font class="comment">// ***************************************************************************</font>
<a name="l00279"></a><a class="code" href="classNL3D_1_1CDefaultLoadBalancingObs.html">00279</a> <font class="comment"></font><font class="keyword">class </font>CDefaultLoadBalancingObs : <font class="keyword">public</font> IBaseLoadBalancingObs
00280 {
00281 <font class="keyword">public</font>:
00282 
00283 
<a name="l00285"></a><a class="code" href="classNL3D_1_1CDefaultLoadBalancingObs.html#a0">00285</a>         <a class="code" href="classNL3D_1_1CDefaultLoadBalancingObs.html#a0">CDefaultLoadBalancingObs</a>() {}
00286 
00288 
<a name="l00289"></a><a class="code" href="classNL3D_1_1CDefaultLoadBalancingObs.html#z530_0">00289</a>         <font class="keyword">virtual</font> <font class="keywordtype">void</font>    <a class="code" href="classNL3D_1_1CDefaultLoadBalancingObs.html#z530_0">traverse</a>(<a class="code" href="classNL3D_1_1IObs.html#a0">IObs</a> *caller)
00290         {
00291                 <font class="comment">// no need to traverseSons. No graph here.</font>
00292         }
00294 
00295 };
00296 
00297 
00298 } <font class="comment">// NL3D</font>
00299 
00300 
00301 <font class="preprocessor">#endif // NL_LOAD_BALANCING_TRAV_H</font>
00302 <font class="preprocessor"></font>
00303 <font class="comment">/* End of load_balancing_trav.h */</font>
</pre></div>

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