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<h1>ps_ribbon_base.cpp</h1><a href="a04852.html">Go to the documentation of this file.</a><div class="fragment"><pre>00001
00007 <span class="comment">/* Copyright, 2001 Nevrax Ltd.</span>
00008 <span class="comment"> *</span>
00009 <span class="comment"> * This file is part of NEVRAX NEL.</span>
00010 <span class="comment"> * NEVRAX NEL is free software; you can redistribute it and/or modify</span>
00011 <span class="comment"> * it under the terms of the GNU General Public License as published by</span>
00012 <span class="comment"> * the Free Software Foundation; either version 2, or (at your option)</span>
00013 <span class="comment"> * any later version.</span>
00014 <span class="comment"></span>
00015 <span class="comment"> * NEVRAX NEL is distributed in the hope that it will be useful, but</span>
00016 <span class="comment"> * WITHOUT ANY WARRANTY; without even the implied warranty of</span>
00017 <span class="comment"> * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU</span>
00018 <span class="comment"> * General Public License for more details.</span>
00019 <span class="comment"></span>
00020 <span class="comment"> * You should have received a copy of the GNU General Public License</span>
00021 <span class="comment"> * along with NEVRAX NEL; see the file COPYING. If not, write to the</span>
00022 <span class="comment"> * Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,</span>
00023 <span class="comment"> * MA 02111-1307, USA.</span>
00024 <span class="comment"> */</span>
00025
00026 <span class="preprocessor">#include "<a class="code" href="a05015.html">std3d.h</a>"</span>
00027
00028 <span class="preprocessor">#include "<a class="code" href="a04853.html">3d/ps_ribbon_base.h</a>"</span>
00029 <span class="preprocessor">#include "<a class="code" href="a04720.html">3d/particle_system.h</a>"</span>
00030
00031 <span class="keyword">namespace </span>NL3D
00032 {
00033
00035 <span class="comment">// CPSRibbonBase implementation //</span>
00037 <span class="comment"></span>
00038
<a name="l00040"></a><a class="code" href="a05363.html#a514">00040</a> <span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="a05363.html#a514">BuildHermiteVector</a>(<span class="keyword">const</span> <a class="code" href="a03128.html">NLMISC::CVector</a> &P0,
00041 <span class="keyword">const</span> <a class="code" href="a03128.html">NLMISC::CVector</a> &P1,
00042 <span class="keyword">const</span> <a class="code" href="a03128.html">NLMISC::CVector</a> &T0,
00043 <span class="keyword">const</span> <a class="code" href="a03128.html">NLMISC::CVector</a> &T1,
00044 <a class="code" href="a03128.html">NLMISC::CVector</a> &dest,
00045 <span class="keywordtype">float</span> lambda
00046 )
00047 {
00048 <span class="keyword">const</span> <span class="keywordtype">float</span> lambda2 = lambda * lambda;
00049 <span class="keyword">const</span> <span class="keywordtype">float</span> lambda3 = lambda2 * lambda;
00050 <span class="keyword">const</span> <span class="keywordtype">float</span> h1 = 2 * lambda3 - 3 * lambda2 + 1;
00051 <span class="keyword">const</span> <span class="keywordtype">float</span> h2 = - 2 * lambda3 + 3 * lambda2;
00052 <span class="keyword">const</span> <span class="keywordtype">float</span> h3 = lambda3 - 2 * lambda2 + lambda;
00053 <span class="keyword">const</span> <span class="keywordtype">float</span> h4 = lambda3 - lambda2;
00055 dest.<a class="code" href="a03128.html#NLMISC_1_1CVectorz2051_8">set</a> (h1 * P0.<a class="code" href="a03128.html#NLMISC_1_1CVectoro0">x</a> + h2 * P1.<a class="code" href="a03128.html#NLMISC_1_1CVectoro0">x</a> + h3 * T0.<a class="code" href="a03128.html#NLMISC_1_1CVectoro0">x</a> + h4 * T1.<a class="code" href="a03128.html#NLMISC_1_1CVectoro0">x</a>,
00056 h1 * P0.<a class="code" href="a03128.html#NLMISC_1_1CVectoro1">y</a> + h2 * P1.<a class="code" href="a03128.html#NLMISC_1_1CVectoro1">y</a> + h3 * T0.<a class="code" href="a03128.html#NLMISC_1_1CVectoro1">y</a> + h4 * T1.<a class="code" href="a03128.html#NLMISC_1_1CVectoro1">y</a>,
00057 h1 * P0.<a class="code" href="a03128.html#NLMISC_1_1CVectoro2">z</a> + h2 * P1.<a class="code" href="a03128.html#NLMISC_1_1CVectoro2">z</a> + h3 * T0.<a class="code" href="a03128.html#NLMISC_1_1CVectoro2">z</a> + h4 * T1.<a class="code" href="a03128.html#NLMISC_1_1CVectoro2">z</a>);
00058
00059 }
00060
<a name="l00062"></a><a class="code" href="a05363.html#a515">00062</a> <span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="a05363.html#a515">BuildLinearVector</a>(<span class="keyword">const</span> <a class="code" href="a03128.html">NLMISC::CVector</a> &P0,
00063 <span class="keyword">const</span> <a class="code" href="a03128.html">NLMISC::CVector</a> &P1,
00064 <a class="code" href="a03128.html">NLMISC::CVector</a> &dest,
00065 <span class="keywordtype">float</span> lambda,
00066 <span class="keywordtype">float</span> oneMinusLambda
00067 )
00068 {
00069 dest.<a class="code" href="a03128.html#NLMISC_1_1CVectorz2051_8">set</a> (lambda * P1.<a class="code" href="a03128.html#NLMISC_1_1CVectoro0">x</a> + oneMinusLambda * P0.<a class="code" href="a03128.html#NLMISC_1_1CVectoro0">x</a>,
00070 lambda * P1.<a class="code" href="a03128.html#NLMISC_1_1CVectoro1">y</a> + oneMinusLambda * P0.<a class="code" href="a03128.html#NLMISC_1_1CVectoro1">y</a>,
00071 lambda * P1.<a class="code" href="a03128.html#NLMISC_1_1CVectoro2">z</a> + oneMinusLambda * P0.<a class="code" href="a03128.html#NLMISC_1_1CVectoro2">z</a>);
00072 }
00073
00074
<a name="l00075"></a><a class="code" href="a05363.html#a267">00075</a> <span class="keyword">const</span> <a class="code" href="a04558.html#a15">uint</a> <a class="code" href="a05363.html#a267">EndRibbonStorage</a> = 1;
00076
00077
00078 <span class="comment">//=======================================================</span>
<a name="l00079"></a><a class="code" href="a03227.html#NL3D_1_1CPSRibbonBasez753_0">00079</a> CPSRibbonBase::CPSRibbonBase() : _NbSegs(8),
00080 _SegDuration(0.02f),
00081 _Parametric(false),
00082 _RibbonIndex(0),
00083 _LastUpdateDate(0),
00084 _RibbonMode(VariableSize),
00085 _InterpolationMode(Hermitte),
00086 _RibbonLength(1),
00087 _SegLength(_RibbonLength / _NbSegs),
00088 _LODDegradation(1)
00089
00090 {
00091 <a class="code" href="a03227.html#NL3D_1_1CPSTailDotb10">initDateVect</a>();
00092 }
00093
00094 <span class="comment">//=======================================================</span>
<a name="l00095"></a><a class="code" href="a03227.html#NL3D_1_1CPSTailDotz755_3">00095</a> <span class="keywordtype">void</span> CPSRibbonBase::setRibbonLength(<span class="keywordtype">float</span> length)
00096 {
00097 <a class="code" href="a04199.html#a6">nlassert</a>(length > 0.f);
00098 <a class="code" href="a03227.html#NL3D_1_1CPSRibbonBaser4">_RibbonLength</a> = length;
00099 <a class="code" href="a03227.html#NL3D_1_1CPSRibbonBaser8">_SegLength</a> = length / <a class="code" href="a03227.html#NL3D_1_1CPSTailDotp7">_NbSegs</a>;
00100 }
00101
00102 <span class="comment">//=======================================================</span>
<a name="l00103"></a><a class="code" href="a03227.html#NL3D_1_1CPSTailDotz754_3">00103</a> <span class="keywordtype">void</span> CPSRibbonBase::setRibbonMode(TRibbonMode mode)
00104 {
00105 <a class="code" href="a04199.html#a6">nlassert</a>(mode < <a class="code" href="a03227.html#NL3D_1_1CPSTailDotw11NL3D_1_1CPSTailDotw8">RibbonModeLast</a>);
00106 <a class="code" href="a03227.html#NL3D_1_1CPSRibbonBaser5">_RibbonMode</a> = mode;
00107 }
00108
00109
00110 <span class="comment">//=======================================================</span>
<a name="l00111"></a><a class="code" href="a03227.html#NL3D_1_1CPSTailDotz754_2">00111</a> <span class="keywordtype">void</span> CPSRibbonBase::setInterpolationMode(TInterpolationMode mode)
00112 {
00113 <a class="code" href="a04199.html#a6">nlassert</a>(mode < <a class="code" href="a03227.html#NL3D_1_1CPSTailDotw10NL3D_1_1CPSTailDotw5">InterpModeLast</a>);
00114 <a class="code" href="a03227.html#NL3D_1_1CPSRibbonBaser0">_InterpolationMode</a> = mode;
00115 }
00116
00117 <span class="comment">//=======================================================</span>
<a name="l00118"></a><a class="code" href="a03227.html#NL3D_1_1CPSTailDotz755_5">00118</a> <span class="keywordtype">void</span> CPSRibbonBase::setTailNbSeg(<a class="code" href="a04558.html#a11">uint32</a> nbSegs)
00119 {
00120 <a class="code" href="a04199.html#a6">nlassert</a>(nbSegs >= 1);
00121 <a class="code" href="a03227.html#NL3D_1_1CPSTailDotp7">_NbSegs</a> = nbSegs;
00122 <a class="code" href="a03227.html#NL3D_1_1CPSRibbonBaser3">_RibbonIndex</a> = 0;
00123 <span class="keywordflow">if</span> (_Owner)
00124 {
00125 <a class="code" href="a03227.html#NL3D_1_1CPSRibbonBaseb12">resize</a>(_Owner-><a class="code" href="a03214.html#NL3D_1_1CPSLocateda34">getMaxSize</a>());
00126 }
00127 <a class="code" href="a03227.html#NL3D_1_1CPSTailDotb10">initDateVect</a>();
00128 }
00129
00130
00131 <span class="comment">//======================================================= </span>
<a name="l00132"></a><a class="code" href="a03227.html#NL3D_1_1CPSTailDotz755_4">00132</a> <span class="keywordtype">void</span> CPSRibbonBase::setSegDuration(<a class="code" href="a05363.html#a366">TAnimationTime</a> ellapsedTime)
00133 {
00134 <a class="code" href="a03227.html#NL3D_1_1CPSTailDotp10">_SegDuration</a> = ellapsedTime;
00135
00136 }
00137
00138 <span class="comment">//======================================================= </span>
<a name="l00139"></a><a class="code" href="a03227.html#NL3D_1_1CPSTailDotb19">00139</a> <span class="keywordtype">void</span> CPSRibbonBase::updateGlobals(<span class="keywordtype">float</span> realET)
00140 {
00141 <a class="code" href="a04199.html#a6">nlassert</a>(!<a class="code" href="a03227.html#NL3D_1_1CPSTailDotp9">_Parametric</a>);
00142 <a class="code" href="a04199.html#a6">nlassert</a>(_Owner);
00143 <span class="keyword">const</span> <a class="code" href="a04558.html#a15">uint</a> <a class="code" href="a04223.html#a587">size</a> = _Owner-><a class="code" href="a03214.html#NL3D_1_1CPSLocateda44">getSize</a>();
00144 <span class="keywordflow">if</span> (!<a class="code" href="a04223.html#a587">size</a>) <span class="keywordflow">return</span>;
00145 <span class="keyword">const</span> <a class="code" href="a05363.html#a366">TAnimationTime</a> currDate = _Owner-><a class="code" href="a03054.html#NL3D_1_1CPSLocateda39">getOwner</a>()-><a class="code" href="a03041.html#NL3D_1_1CParticleSystemz584_1">getSystemDate</a>() + realET;
00146 <span class="keywordflow">if</span> (currDate - _LastUpdateDate >= <a class="code" href="a03227.html#NL3D_1_1CPSTailDotp10">_SegDuration</a>)
00147 {
00148 <span class="keywordflow">if</span> (<a class="code" href="a03227.html#NL3D_1_1CPSRibbonBaser3">_RibbonIndex</a> == 0) <a class="code" href="a03227.html#NL3D_1_1CPSRibbonBaser3">_RibbonIndex</a> = <a class="code" href="a03227.html#NL3D_1_1CPSTailDotp7">_NbSegs</a> + <a class="code" href="a05363.html#a267">EndRibbonStorage</a>;
00149 <span class="keywordflow">else</span> --<a class="code" href="a03227.html#NL3D_1_1CPSRibbonBaser3">_RibbonIndex</a>;
00150
00152 ::memmove(&<a class="code" href="a03227.html#NL3D_1_1CPSRibbonBaser7">_SamplingDate</a>[1], &_SamplingDate[0], <span class="keyword">sizeof</span>(<span class="keywordtype">float</span>) * (<a class="code" href="a03227.html#NL3D_1_1CPSTailDotp7">_NbSegs</a> + <a class="code" href="a05363.html#a267">EndRibbonStorage</a>));
00153 _LastUpdateDate = currDate;
00154 }
00155
00157 <a class="code" href="a03227.html#NL3D_1_1CPSRibbonBaser7">_SamplingDate</a>[0] = currDate;
00158
00160 TPSAttribVector::iterator posIt = _Owner-><a class="code" href="a03214.html#NL3D_1_1CPSLocateda42">getPos</a>().<a class="code" href="a03135.html#NL3D_1_1CPSAttribz708_1">begin</a>();
00161 <a class="code" href="a03128.html">NLMISC::CVector</a> *currIt = &<a class="code" href="a03227.html#NL3D_1_1CPSRibbonBaser6">_Ribbons</a>[<a class="code" href="a03227.html#NL3D_1_1CPSRibbonBaser3">_RibbonIndex</a>];
00162 <a class="code" href="a04558.html#a15">uint</a> k = <a class="code" href="a04223.html#a587">size</a>;
00163 <span class="keywordflow">for</span> (;;)
00164 {
00165 *currIt = *posIt;
00166 --k;
00167 <span class="keywordflow">if</span> (!k) <span class="keywordflow">break</span>;
00168 ++posIt;
00169 currIt += (<a class="code" href="a03227.html#NL3D_1_1CPSTailDotp7">_NbSegs</a> + 1 + <a class="code" href="a05363.html#a267">EndRibbonStorage</a>);
00170 }
00171 }
00172
00173
00174 <span class="comment">//======================================================= </span>
<a name="l00175"></a><a class="code" href="a03227.html#NL3D_1_1CPSRibbonBased1">00175</a> <span class="keywordtype">void</span> CPSRibbonBase::computeHermitteRibbon(<a class="code" href="a04558.html#a15">uint</a> <a class="code" href="a04223.html#a566">index</a>, <a class="code" href="a03128.html">NLMISC::CVector</a> *dest, <a class="code" href="a04558.html#a15">uint</a> <a class="code" href="a04223.html#a582">stride</a> <span class="comment">/* = sizeof(NLMISC::CVector)*/</span>)
00176 {
00177 <a class="code" href="a04199.html#a6">nlassert</a>(!<a class="code" href="a03227.html#NL3D_1_1CPSTailDotp9">_Parametric</a>);
00178 <a class="code" href="a03128.html">NLMISC::CVector</a> *startIt = &<a class="code" href="a03227.html#NL3D_1_1CPSRibbonBaser6">_Ribbons</a>[(<a class="code" href="a03227.html#NL3D_1_1CPSTailDotp7">_NbSegs</a> + 1 + <a class="code" href="a05363.html#a267">EndRibbonStorage</a>) * <a class="code" href="a04223.html#a566">index</a>];
00179 <a class="code" href="a03128.html">NLMISC::CVector</a> *endIt = startIt + (<a class="code" href="a03227.html#NL3D_1_1CPSTailDotp7">_NbSegs</a> + 1 + <a class="code" href="a05363.html#a267">EndRibbonStorage</a>);
00180 <a class="code" href="a03128.html">NLMISC::CVector</a> *currIt = startIt + <a class="code" href="a03227.html#NL3D_1_1CPSRibbonBaser3">_RibbonIndex</a>;
00181 <span class="keyword">const</span> <a class="code" href="a03128.html">NLMISC::CVector</a> *firstIt = currIt;
00182 <a class="code" href="a03128.html">NLMISC::CVector</a> *nextIt = currIt + 1;
00183 <span class="keywordflow">if</span> (nextIt == endIt) nextIt = startIt;
00184 <a class="code" href="a03128.html">NLMISC::CVector</a> *nextNextIt = nextIt + 1;
00185 <span class="keywordflow">if</span> (nextNextIt == endIt) nextNextIt = startIt;
00186 <span class="keywordtype">float</span> *date = &<a class="code" href="a03227.html#NL3D_1_1CPSRibbonBaser7">_SamplingDate</a>[0];
00187
00188 <a class="code" href="a03128.html">NLMISC::CVector</a> t0 = (*nextIt - *currIt);
00189 <a class="code" href="a03128.html">NLMISC::CVector</a> t1 = 0.5f * (*nextNextIt - *currIt);
00190
00191 <a class="code" href="a04558.html#a15">uint</a> leftToDo = <a class="code" href="a03227.html#NL3D_1_1CPSTailDotp11">_UsedNbSegs</a> + 1;
00192
00193 <span class="keywordtype">float</span> lambda = 0.f;
00194 <span class="keywordtype">float</span> lambdaStep = 1.f;
00195
00196
00197 <span class="keywordflow">for</span> (;;)
00198 {
00199 <span class="keywordtype">float</span> dt = date[0] - date[1];
00200
00201 <span class="keywordflow">if</span> (dt < 10E-6f) <span class="comment">// we reached the start of ribbon</span>
00202 {
00203
00204 <span class="keywordflow">do</span>
00205 {
00206 *dest = *currIt;
00207 dest = (<a class="code" href="a03128.html">NLMISC::CVector</a> *) ((<a class="code" href="a04558.html#a7">uint8</a> *) dest + <a class="code" href="a04223.html#a582">stride</a>);
00208 }
00209 <span class="keywordflow">while</span> (--leftToDo);
00210 <span class="keywordflow">return</span>;
00211 }
00212
00213 <span class="keywordtype">float</span> newLambdaStep = <a class="code" href="a03227.html#NL3D_1_1CPSTailDotp12">_UsedSegDuration</a> / dt;
00214 <span class="comment">// readapt lambda</span>
00215 lambda *= newLambdaStep / lambdaStep;
00216 lambdaStep = newLambdaStep;
00217 <span class="keywordflow">for</span>(;;)
00218 {
00219 <span class="keywordflow">if</span> (lambda >= 1.f) <span class="keywordflow">break</span>;
00221 <a class="code" href="a05363.html#a514">BuildHermiteVector</a>(*currIt, *nextIt, t0, t1, *dest, lambda);
00222 dest = (<a class="code" href="a03128.html">NLMISC::CVector</a> *) ((<a class="code" href="a04558.html#a7">uint8</a> *) dest + <a class="code" href="a04223.html#a582">stride</a>);
00223 -- leftToDo;
00224 <span class="keywordflow">if</span> (!leftToDo) <span class="keywordflow">return</span>;
00225 lambda += lambdaStep;
00226 }
00227
00228 ++date;
00229 lambda -= 1.f;
00230
00231 <span class="comment">// Start new segment and compute new tangents</span>
00232 t0 = t1;
00233 currIt = nextIt;
00234 nextIt = nextNextIt;
00235 ++nextNextIt;
00236 <span class="keywordflow">if</span> (nextNextIt == endIt) nextNextIt = startIt;
00237 <span class="keywordflow">if</span> (nextNextIt == firstIt)
00238 {
00239 t1 = *nextIt - *currIt;
00240 }
00241 <span class="keywordflow">else</span>
00242 {
00243 t1 = 0.5f * (*nextNextIt - *currIt);
00244 }
00245 }
00246 }
00247
00248 <span class="comment">//======================================================= </span>
<a name="l00249"></a><a class="code" href="a03227.html#NL3D_1_1CPSRibbonBased3">00249</a> <span class="keywordtype">void</span> CPSRibbonBase::computeLinearRibbon(<a class="code" href="a04558.html#a15">uint</a> <a class="code" href="a04223.html#a566">index</a>, <a class="code" href="a03128.html">NLMISC::CVector</a> *dest, <a class="code" href="a04558.html#a15">uint</a> <a class="code" href="a04223.html#a582">stride</a> <span class="comment">/* = sizeof(NLMISC::CVector)*/</span>)
00250 {
00252 <a class="code" href="a04199.html#a6">nlassert</a>(!<a class="code" href="a03227.html#NL3D_1_1CPSTailDotp9">_Parametric</a>);
00253 <a class="code" href="a03128.html">NLMISC::CVector</a> *startIt = &<a class="code" href="a03227.html#NL3D_1_1CPSRibbonBaser6">_Ribbons</a>[(<a class="code" href="a03227.html#NL3D_1_1CPSTailDotp7">_NbSegs</a> + 1 + <a class="code" href="a05363.html#a267">EndRibbonStorage</a>) * <a class="code" href="a04223.html#a566">index</a>];
00254 <a class="code" href="a03128.html">NLMISC::CVector</a> *endIt = startIt + (<a class="code" href="a03227.html#NL3D_1_1CPSTailDotp7">_NbSegs</a> + 1 + <a class="code" href="a05363.html#a267">EndRibbonStorage</a>);
00255 <a class="code" href="a03128.html">NLMISC::CVector</a> *currIt = startIt + <a class="code" href="a03227.html#NL3D_1_1CPSRibbonBaser3">_RibbonIndex</a>;
00256 <a class="code" href="a03128.html">NLMISC::CVector</a> *nextIt = currIt + 1;
00257 <span class="keywordflow">if</span> (nextIt == endIt) nextIt = startIt;
00258 <a class="code" href="a03128.html">NLMISC::CVector</a> *nextNextIt = nextIt + 1;
00259 <span class="keywordflow">if</span> (nextNextIt == endIt) nextNextIt = startIt;
00260 <span class="keywordtype">float</span> *date = &<a class="code" href="a03227.html#NL3D_1_1CPSRibbonBaser7">_SamplingDate</a>[0];
00261
00262 <a class="code" href="a04558.html#a15">uint</a> leftToDo = <a class="code" href="a03227.html#NL3D_1_1CPSTailDotp11">_UsedNbSegs</a> + 1;
00263
00264 <span class="keywordtype">float</span> lambda = 0.f;
00265 <span class="keywordtype">float</span> lambdaStep = 1.f;
00266
00267 <span class="keywordflow">for</span> (;;)
00268 {
00269 <span class="keywordtype">float</span> dt = date[0] - date[1];
00270
00271 <span class="keywordflow">if</span> (dt < 10E-6f) <span class="comment">// we reached the start of ribbon</span>
00272 {
00273 <span class="keywordflow">do</span>
00274 {
00275 *dest = *currIt;
00276 dest = (<a class="code" href="a03128.html">NLMISC::CVector</a> *) ((<a class="code" href="a04558.html#a7">uint8</a> *) dest + <a class="code" href="a04223.html#a582">stride</a>);
00277 }
00278 <span class="keywordflow">while</span> (--leftToDo);
00279 <span class="keywordflow">return</span>;
00280 }
00281
00282
00283 <span class="keywordtype">float</span> newLambdaStep = <a class="code" href="a03227.html#NL3D_1_1CPSTailDotp12">_UsedSegDuration</a> / dt;
00284 <span class="comment">// readapt lambda</span>
00285 lambda *= newLambdaStep / lambdaStep;
00286 lambdaStep = newLambdaStep;
00287
00288 <span class="keywordtype">float</span> oneMinusLambda = 1.f - lambda;
00289 <span class="keywordflow">for</span>(;;)
00290 {
00291 <span class="keywordflow">if</span> (lambda >= 1.f) <span class="keywordflow">break</span>;
00293 <a class="code" href="a05363.html#a515">BuildLinearVector</a>(*currIt, *nextIt, *dest, lambda, oneMinusLambda);
00294 dest = (<a class="code" href="a03128.html">NLMISC::CVector</a> *) ((<a class="code" href="a04558.html#a7">uint8</a> *) dest + <a class="code" href="a04223.html#a582">stride</a>);
00295 -- leftToDo;
00296 <span class="keywordflow">if</span> (!leftToDo) <span class="keywordflow">return</span>;
00297 lambda += lambdaStep;
00298 oneMinusLambda -= lambdaStep;
00299 }
00300
00301 ++date;
00302 lambda -= 1.f;
00303
00304 currIt = nextIt;
00305 nextIt = nextNextIt;
00306 ++nextNextIt;
00307 <span class="keywordflow">if</span> (nextNextIt == endIt) nextNextIt = startIt;
00308
00309 }
00310 }
00311
00312
00313
00314 <span class="comment">//======================================================= </span>
<a name="l00315"></a><a class="code" href="a03227.html#NL3D_1_1CPSRibbonBased2">00315</a> <span class="keywordtype">void</span> CPSRibbonBase::computeLinearCstSizeRibbon(<a class="code" href="a04558.html#a15">uint</a> <a class="code" href="a04223.html#a566">index</a>, <a class="code" href="a03128.html">NLMISC::CVector</a> *dest, <a class="code" href="a04558.html#a15">uint</a> <a class="code" href="a04223.html#a582">stride</a> <span class="comment">/* = sizeof(NLMISC::CVector)*/</span>)
00316 {
00317 <a class="code" href="a04199.html#a6">nlassert</a>(!<a class="code" href="a03227.html#NL3D_1_1CPSTailDotp9">_Parametric</a>);
00318 <a class="code" href="a03128.html">CVector</a> *startIt = &<a class="code" href="a03227.html#NL3D_1_1CPSRibbonBaser6">_Ribbons</a>[(<a class="code" href="a03227.html#NL3D_1_1CPSTailDotp7">_NbSegs</a> + 1 + <a class="code" href="a05363.html#a267">EndRibbonStorage</a>) * <a class="code" href="a04223.html#a566">index</a>];
00319 <a class="code" href="a03128.html">NLMISC::CVector</a> *endIt = startIt + (<a class="code" href="a03227.html#NL3D_1_1CPSTailDotp7">_NbSegs</a> + 1 + <a class="code" href="a05363.html#a267">EndRibbonStorage</a>);
00320 <a class="code" href="a03128.html">NLMISC::CVector</a> *currIt = startIt + <a class="code" href="a03227.html#NL3D_1_1CPSRibbonBaser3">_RibbonIndex</a>;
00321 <a class="code" href="a03128.html">NLMISC::CVector</a> *firstIt = currIt;
00322 <a class="code" href="a03128.html">NLMISC::CVector</a> *nextIt = currIt + 1;
00323 <span class="keywordflow">if</span> (nextIt == endIt) nextIt = startIt;
00324 <a class="code" href="a03128.html">NLMISC::CVector</a> *nextNextIt = nextIt + 1;
00325 <span class="keywordflow">if</span> (nextNextIt == endIt) nextNextIt = startIt;
00326
00327 <a class="code" href="a04558.html#a15">uint</a> leftToDo = <a class="code" href="a03227.html#NL3D_1_1CPSTailDotp11">_UsedNbSegs</a> + 1;
00328
00329 <span class="keywordtype">float</span> lambda = 0.f;
00330 <span class="keywordtype">float</span> lambdaStep = 1.f;
00331
00332
00334 <span class="keywordflow">for</span> (;;)
00335 {
00337 <span class="keyword">const</span> <span class="keywordtype">float</span> sampleLength = (*nextIt - *currIt).norm();
00338 <span class="keywordflow">if</span> (sampleLength > 10E-6f)
00339 {
00341 <span class="keywordtype">float</span> newLambdaStep = <a class="code" href="a03227.html#NL3D_1_1CPSTailDotp13">_UsedSegLength</a> / sampleLength;
00342 <span class="comment">// readapt lambda</span>
00343 lambda *= newLambdaStep / lambdaStep;
00344 lambdaStep = newLambdaStep;
00345
00346 <span class="keywordtype">float</span> oneMinusLambda = 1.f - lambda;
00347 <span class="keywordflow">for</span>(;;)
00348 {
00349 <span class="keywordflow">if</span> (lambda >= 1.f) <span class="keywordflow">break</span>;
00351 <a class="code" href="a05363.html#a515">BuildLinearVector</a>(*currIt, *nextIt, *dest, lambda, oneMinusLambda);
00352 dest = (<a class="code" href="a03128.html">NLMISC::CVector</a> *) ((<a class="code" href="a04558.html#a7">uint8</a> *) dest + <a class="code" href="a04223.html#a582">stride</a>);
00353 -- leftToDo;
00354 <span class="keywordflow">if</span> (!leftToDo) <span class="keywordflow">return</span>;
00355 lambda += lambdaStep;
00356 oneMinusLambda -= lambdaStep;
00357 }
00358 lambda -= 1.f;
00359 }
00360
00362 currIt = nextIt;
00363 nextIt = nextNextIt;
00364 ++nextNextIt;
00365 <span class="keywordflow">if</span> (nextNextIt == endIt) nextNextIt = startIt;
00366 <span class="keywordflow">if</span> (nextNextIt == firstIt)
00367 {
00368 <span class="comment">// The length of the sampling curve is too short</span>
00369 <span class="comment">// must truncate the ribbon.</span>
00370 <a class="code" href="a03128.html">NLMISC::CVector</a> &toDup = *nextIt;
00371 <span class="keywordflow">while</span> (leftToDo --)
00372 {
00373 *dest = toDup;
00374 dest = (<a class="code" href="a03128.html">NLMISC::CVector</a> *) ((<a class="code" href="a04558.html#a7">uint8</a> *) dest + <a class="code" href="a04223.html#a582">stride</a>);
00375 }
00376 <span class="keywordflow">return</span>;
00377 }
00378 }
00379 }
00380
00381 <span class="comment">//======================================================= </span>
<a name="l00382"></a><a class="code" href="a03227.html#NL3D_1_1CPSRibbonBased0">00382</a> <span class="keywordtype">void</span> CPSRibbonBase::computeHermitteCstSizeRibbon(<a class="code" href="a04558.html#a15">uint</a> <a class="code" href="a04223.html#a566">index</a>, <a class="code" href="a03128.html">NLMISC::CVector</a> *dest, <a class="code" href="a04558.html#a15">uint</a> <a class="code" href="a04223.html#a582">stride</a> <span class="comment">/* = sizeof(NLMISC::CVector)*/</span>)
00383 {
00384 <a class="code" href="a04199.html#a6">nlassert</a>(!<a class="code" href="a03227.html#NL3D_1_1CPSTailDotp9">_Parametric</a>);
00385 <a class="code" href="a03128.html">NLMISC::CVector</a> *startIt = &<a class="code" href="a03227.html#NL3D_1_1CPSRibbonBaser6">_Ribbons</a>[(<a class="code" href="a03227.html#NL3D_1_1CPSTailDotp7">_NbSegs</a> + 1 + <a class="code" href="a05363.html#a267">EndRibbonStorage</a>) * <a class="code" href="a04223.html#a566">index</a>];
00386 <a class="code" href="a03128.html">NLMISC::CVector</a> *endIt = startIt + (<a class="code" href="a03227.html#NL3D_1_1CPSTailDotp7">_NbSegs</a> + 1 + <a class="code" href="a05363.html#a267">EndRibbonStorage</a>);
00387 <a class="code" href="a03128.html">NLMISC::CVector</a> *currIt = startIt + <a class="code" href="a03227.html#NL3D_1_1CPSRibbonBaser3">_RibbonIndex</a>;
00388 <a class="code" href="a03128.html">NLMISC::CVector</a> *firstIt = currIt;
00389 <a class="code" href="a03128.html">NLMISC::CVector</a> *nextIt = currIt + 1;
00390 <span class="keywordflow">if</span> (nextIt == endIt) nextIt = startIt;
00391 <a class="code" href="a03128.html">NLMISC::CVector</a> *nextNextIt = nextIt + 1;
00392 <span class="keywordflow">if</span> (nextNextIt == endIt) nextNextIt = startIt;
00393
00394 <a class="code" href="a03128.html">NLMISC::CVector</a> t0 = (*nextIt - *currIt);
00395 <a class="code" href="a03128.html">NLMISC::CVector</a> t1 = 0.5f * (*nextNextIt - *currIt);
00396
00397 <a class="code" href="a04558.html#a15">uint</a> leftToDo = <a class="code" href="a03227.html#NL3D_1_1CPSTailDotp11">_UsedNbSegs</a> + 1;
00398
00399 <span class="keywordtype">float</span> lambda = 0.f;
00400 <span class="keywordtype">float</span> lambdaStep = 1.f;
00401
00402
00405 <span class="keywordflow">for</span> (;;)
00406 {
00408 <span class="keyword">const</span> <span class="keywordtype">float</span> sampleLength = (*nextIt - *currIt).norm();
00409 <span class="keywordflow">if</span> (sampleLength > 10E-6f)
00410 {
00412 <span class="keywordtype">float</span> newLambdaStep = <a class="code" href="a03227.html#NL3D_1_1CPSTailDotp13">_UsedSegLength</a> / sampleLength;
00413 <span class="comment">// readapt lambda</span>
00414 lambda *= newLambdaStep / lambdaStep;
00415 lambdaStep = newLambdaStep;
00416
00417 <span class="keywordflow">for</span>(;;)
00418 {
00419 <span class="keywordflow">if</span> (lambda >= 1.f) <span class="keywordflow">break</span>;
00421 <a class="code" href="a05363.html#a514">BuildHermiteVector</a>(*currIt, *nextIt, t0, t1, *dest, lambda);
00422 dest = (<a class="code" href="a03128.html">NLMISC::CVector</a> *) ((<a class="code" href="a04558.html#a7">uint8</a> *) dest + <a class="code" href="a04223.html#a582">stride</a>);
00423 -- leftToDo;
00424 <span class="keywordflow">if</span> (!leftToDo) <span class="keywordflow">return</span>;
00425 lambda += lambdaStep;
00426 }
00427 lambda -= 1.f;
00428 }
00429
00431 currIt = nextIt;
00432 nextIt = nextNextIt;
00433 ++nextNextIt;
00434 <span class="keywordflow">if</span> (nextNextIt == endIt) nextNextIt = startIt;
00435 <span class="keywordflow">if</span> (nextNextIt == firstIt)
00436 {
00437 <span class="comment">// The length of the sampling curve is too short</span>
00438 <span class="comment">// must truncate the ribbon.</span>
00439 <a class="code" href="a03128.html">NLMISC::CVector</a> &toDup = *nextIt;
00440 <span class="keywordflow">while</span> (leftToDo --)
00441 {
00442 *dest = toDup;
00443 dest = (<a class="code" href="a03128.html">NLMISC::CVector</a> *) ((<a class="code" href="a04558.html#a7">uint8</a> *) dest + <a class="code" href="a04223.html#a582">stride</a>);
00444 }
00445 <span class="keywordflow">return</span>;
00446 }
00448 t0 = t1;
00449 t1 = 0.5f * (*nextNextIt - *currIt);
00450 }
00451 }
00452
00453
00454 <span class="comment">//======================================================= </span>
<a name="l00455"></a><a class="code" href="a03227.html#NL3D_1_1CPSTailDotb1">00455</a> <span class="keywordtype">void</span> CPSRibbonBase::computeRibbon(<a class="code" href="a04558.html#a15">uint</a> <a class="code" href="a04223.html#a566">index</a>, <a class="code" href="a03128.html">NLMISC::CVector</a> *dest, <a class="code" href="a04558.html#a15">uint</a> <a class="code" href="a04223.html#a582">stride</a> <span class="comment">/* = sizeof(NLMISC::CVector)*/</span>)
00456 {
00457 <span class="keywordflow">switch</span> (<a class="code" href="a03227.html#NL3D_1_1CPSRibbonBaser0">_InterpolationMode</a>)
00458 {
00459 <span class="keywordflow">case</span> <a class="code" href="a03227.html#NL3D_1_1CPSTailDotw10NL3D_1_1CPSTailDotw6">Linear</a>:
00460 <span class="keywordflow">if</span> (<a class="code" href="a03227.html#NL3D_1_1CPSRibbonBaser5">_RibbonMode</a> == <a class="code" href="a03227.html#NL3D_1_1CPSTailDotw11NL3D_1_1CPSTailDotw12">VariableSize</a>)
00461 {
00462 <a class="code" href="a03227.html#NL3D_1_1CPSRibbonBased3">computeLinearRibbon</a>(<a class="code" href="a04223.html#a566">index</a>, dest, <a class="code" href="a04223.html#a582">stride</a>);
00463 }
00464 <span class="keywordflow">else</span>
00465 {
00466 <a class="code" href="a03227.html#NL3D_1_1CPSRibbonBased2">computeLinearCstSizeRibbon</a>(<a class="code" href="a04223.html#a566">index</a>, dest, <a class="code" href="a04223.html#a582">stride</a>);
00467 }
00468 <span class="keywordflow">break</span>;
00469 <span class="keywordflow">case</span> <a class="code" href="a03227.html#NL3D_1_1CPSTailDotw10NL3D_1_1CPSTailDotw4">Hermitte</a>:
00470 <span class="keywordflow">if</span> (<a class="code" href="a03227.html#NL3D_1_1CPSRibbonBaser5">_RibbonMode</a> == <a class="code" href="a03227.html#NL3D_1_1CPSTailDotw11NL3D_1_1CPSTailDotw12">VariableSize</a>)
00471 {
00472 <a class="code" href="a03227.html#NL3D_1_1CPSRibbonBased1">computeHermitteRibbon</a>(<a class="code" href="a04223.html#a566">index</a>, dest, <a class="code" href="a04223.html#a582">stride</a>);
00473
00474 }
00475 <span class="keywordflow">else</span>
00476 {
00477 <a class="code" href="a03227.html#NL3D_1_1CPSRibbonBased0">computeHermitteCstSizeRibbon</a>(<a class="code" href="a04223.html#a566">index</a>, dest, <a class="code" href="a04223.html#a582">stride</a>);
00478 }
00479 <span class="keywordflow">break</span>;
00480 <span class="keywordflow">default</span>:
00481 <a class="code" href="a04199.html#a6">nlassert</a>(0);
00482 <span class="keywordflow">break</span>;
00483 }
00484
00485 }
00486
00487
00488 <span class="comment">//======================================================= </span>
<a name="l00489"></a><a class="code" href="a03227.html#NL3D_1_1CPSRibbonBased4">00489</a> <span class="keywordtype">void</span> CPSRibbonBase::dupRibbon(<a class="code" href="a04558.html#a15">uint</a> dest, <a class="code" href="a04558.html#a15">uint</a> <a class="code" href="a04223.html#a652">src</a>)
00490 {
00491 <a class="code" href="a04199.html#a6">nlassert</a>(!<a class="code" href="a03227.html#NL3D_1_1CPSTailDotp9">_Parametric</a>);
00492 <a class="code" href="a04199.html#a6">nlassert</a>(_Owner);
00493 <span class="keyword">const</span> <a class="code" href="a04558.html#a15">uint</a> <a class="code" href="a04223.html#a587">size</a> = _Owner-><a class="code" href="a03214.html#NL3D_1_1CPSLocateda44">getSize</a>();
00494 <a class="code" href="a04199.html#a6">nlassert</a>(dest < <a class="code" href="a04223.html#a587">size</a> && <a class="code" href="a04223.html#a652">src</a> < <a class="code" href="a04223.html#a587">size</a>);
00495 ::memcpy(&<a class="code" href="a03227.html#NL3D_1_1CPSRibbonBaser6">_Ribbons</a>[dest * (<a class="code" href="a03227.html#NL3D_1_1CPSTailDotp7">_NbSegs</a> + <a class="code" href="a05363.html#a267">EndRibbonStorage</a> + 1)], &<a class="code" href="a03227.html#NL3D_1_1CPSRibbonBaser6">_Ribbons</a>[<a class="code" href="a04223.html#a652">src</a> * (<a class="code" href="a03227.html#NL3D_1_1CPSTailDotp7">_NbSegs</a> + <a class="code" href="a05363.html#a267">EndRibbonStorage</a> + 1)], <span class="keyword">sizeof</span>(<a class="code" href="a03128.html">NLMISC::CVector</a>) * (<a class="code" href="a03227.html#NL3D_1_1CPSTailDotp7">_NbSegs</a> + 1 + <a class="code" href="a05363.html#a267">EndRibbonStorage</a>));
00496 }
00497
00498 <span class="comment">//======================================================= </span>
<a name="l00499"></a><a class="code" href="a03227.html#NL3D_1_1CPSRibbonBaseb9">00499</a> <span class="keywordtype">void</span> CPSRibbonBase::newElement(<a class="code" href="a03214.html">CPSLocated</a> *emitterLocated, <a class="code" href="a04558.html#a11">uint32</a> emitterIndex)
00500 {
00501 <span class="keywordflow">if</span> (<a class="code" href="a03227.html#NL3D_1_1CPSTailDotp9">_Parametric</a>) <span class="keywordflow">return</span>;
00503 <span class="keyword">const</span> <a class="code" href="a04558.html#a15">uint</a> <a class="code" href="a04223.html#a566">index</a> = _Owner-><a class="code" href="a03214.html#NL3D_1_1CPSLocateda37">getNewElementIndex</a>();
00504 <span class="keyword">const</span> <a class="code" href="a03128.html">NLMISC::CVector</a> &pos = _Owner-><a class="code" href="a03214.html#NL3D_1_1CPSLocateda42">getPos</a>()[<a class="code" href="a04223.html#a566">index</a>]; <span class="comment">// get the pos of the new element;</span>
00505 <a class="code" href="a03227.html#NL3D_1_1CPSRibbonBased5">resetSingleRibbon</a>(<a class="code" href="a04223.html#a566">index</a>, pos);
00506 }
00507
00508 <span class="comment">//======================================================= </span>
<a name="l00509"></a><a class="code" href="a03227.html#NL3D_1_1CPSRibbonBaseb3">00509</a> <span class="keywordtype">void</span> CPSRibbonBase::deleteElement(<a class="code" href="a04558.html#a11">uint32</a> <a class="code" href="a04223.html#a566">index</a>)
00510 {
00511 <span class="keywordflow">if</span> (<a class="code" href="a03227.html#NL3D_1_1CPSTailDotp9">_Parametric</a>) <span class="keywordflow">return</span>;
00512 <span class="keyword">const</span> <a class="code" href="a04558.html#a11">uint32</a> <a class="code" href="a04223.html#a587">size</a> = _Owner-><a class="code" href="a03214.html#NL3D_1_1CPSLocateda44">getSize</a>();
00513 <span class="keywordflow">if</span>(<a class="code" href="a04223.html#a566">index</a> == (<a class="code" href="a04223.html#a587">size</a> - 1)) <span class="keywordflow">return</span>; <span class="comment">// was the last element, no permutation needed.</span>
00514 <a class="code" href="a03227.html#NL3D_1_1CPSRibbonBased4">dupRibbon</a>(<a class="code" href="a04223.html#a566">index</a>, <a class="code" href="a04223.html#a587">size</a> - 1);
00515 }
00516
00517 <span class="comment">//======================================================= </span>
<a name="l00518"></a><a class="code" href="a03227.html#NL3D_1_1CPSRibbonBaseb12">00518</a> <span class="keywordtype">void</span> CPSRibbonBase::resize(<a class="code" href="a04558.html#a11">uint32</a> <a class="code" href="a04223.html#a587">size</a>)
00519 {
00520 <a class="code" href="a04199.html#a6">nlassert</a>(<a class="code" href="a04223.html#a587">size</a> < (1 << 16));
00521 <span class="keywordflow">if</span> (<a class="code" href="a03227.html#NL3D_1_1CPSTailDotp9">_Parametric</a>) <span class="keywordflow">return</span>;
00522 <a class="code" href="a03227.html#NL3D_1_1CPSRibbonBaser6">_Ribbons</a>.resize(<a class="code" href="a04223.html#a587">size</a> * (<a class="code" href="a03227.html#NL3D_1_1CPSTailDotp7">_NbSegs</a> + 1 + <a class="code" href="a05363.html#a267">EndRibbonStorage</a>));
00523 <a class="code" href="a03227.html#NL3D_1_1CPSTailDotb15">resetFromOwner</a>();
00524 }
00525
00526
00527 <span class="comment">//======================================================= </span>
<a name="l00528"></a><a class="code" href="a03227.html#NL3D_1_1CPSRibbonBased5">00528</a> <span class="keywordtype">void</span> CPSRibbonBase::resetSingleRibbon(<a class="code" href="a04558.html#a15">uint</a> <a class="code" href="a04223.html#a566">index</a>, <span class="keyword">const</span> <a class="code" href="a03128.html">NLMISC::CVector</a> &pos)
00529 {
00530 <a class="code" href="a04199.html#a6">nlassert</a>(!<a class="code" href="a03227.html#NL3D_1_1CPSTailDotp9">_Parametric</a>);
00531 <a class="code" href="a03128.html">NLMISC::CVector</a> *it = &<a class="code" href="a03227.html#NL3D_1_1CPSRibbonBaser6">_Ribbons</a>[(<a class="code" href="a04223.html#a566">index</a> * (<a class="code" href="a03227.html#NL3D_1_1CPSTailDotp7">_NbSegs</a> + 1 + <a class="code" href="a05363.html#a267">EndRibbonStorage</a>))];
00532 std::fill(it, it + (<a class="code" href="a03227.html#NL3D_1_1CPSTailDotp7">_NbSegs</a> + 1 + <a class="code" href="a05363.html#a267">EndRibbonStorage</a>), pos);
00533 }
00534
00535
00536
00537 <span class="comment">//======================================================= </span>
<a name="l00538"></a><a class="code" href="a03227.html#NL3D_1_1CPSTailDotb15">00538</a> <span class="keywordtype">void</span> CPSRibbonBase::resetFromOwner()
00539 {
00540 <a class="code" href="a04199.html#a6">nlassert</a>(!<a class="code" href="a03227.html#NL3D_1_1CPSTailDotp9">_Parametric</a>);
00541 TPSAttribVector::iterator posIt = _Owner-><a class="code" href="a03214.html#NL3D_1_1CPSLocateda42">getPos</a>().<a class="code" href="a03135.html#NL3D_1_1CPSAttribz708_1">begin</a>();
00542 TPSAttribVector::iterator endPosIt = _Owner-><a class="code" href="a03214.html#NL3D_1_1CPSLocateda42">getPos</a>().<a class="code" href="a03135.html#NL3D_1_1CPSAttribz708_3">end</a>();
00543 <span class="keywordflow">for</span> (<a class="code" href="a04558.html#a15">uint</a> k = 0; posIt != endPosIt; ++posIt, ++k)
00544 {
00545 <a class="code" href="a03227.html#NL3D_1_1CPSRibbonBased5">resetSingleRibbon</a>(k, *posIt);
00546 }
00547 }
00548
00549 <span class="comment">//======================================================= </span>
<a name="l00550"></a><a class="code" href="a03227.html#NL3D_1_1CPSTailDotb11">00550</a> <span class="keywordtype">void</span> CPSRibbonBase::motionTypeChanged(<span class="keywordtype">bool</span> parametric)
00551 {
00552 <a class="code" href="a03227.html#NL3D_1_1CPSTailDotp9">_Parametric</a> = parametric;
00553 <span class="keywordflow">if</span> (parametric)
00554 {
00555 <a class="code" href="a05378.html#a381">NLMISC::contReset</a>(<a class="code" href="a03227.html#NL3D_1_1CPSRibbonBaser6">_Ribbons</a>); <span class="comment">// kill the vector </span>
00556 }
00557 <span class="keywordflow">else</span>
00558 {
00559 <a class="code" href="a04199.html#a6">nlassert</a>(_Owner);
00560 <a class="code" href="a03227.html#NL3D_1_1CPSRibbonBaseb12">resize</a>(_Owner-><a class="code" href="a03214.html#NL3D_1_1CPSLocateda34">getMaxSize</a>());
00561 <a class="code" href="a03227.html#NL3D_1_1CPSTailDotb10">initDateVect</a>();
00562 <a class="code" href="a03227.html#NL3D_1_1CPSTailDotb15">resetFromOwner</a>();
00563 }
00564 }
00565
00566
00567 <span class="comment">//======================================================= </span>
<a name="l00568"></a><a class="code" href="a03227.html#NL3D_1_1CPSTailDotb10">00568</a> <span class="keywordtype">void</span> CPSRibbonBase::initDateVect()
00569 {
00570 <a class="code" href="a03227.html#NL3D_1_1CPSRibbonBaser7">_SamplingDate</a>.resize( <a class="code" href="a03227.html#NL3D_1_1CPSTailDotp7">_NbSegs</a> + 1 + <a class="code" href="a05363.html#a267">EndRibbonStorage</a>);
00571 std::fill(<a class="code" href="a03227.html#NL3D_1_1CPSRibbonBaser7">_SamplingDate</a>.begin(), <a class="code" href="a03227.html#NL3D_1_1CPSRibbonBaser7">_SamplingDate</a>.begin() + (<a class="code" href="a03227.html#NL3D_1_1CPSTailDotp7">_NbSegs</a> + 1 + <a class="code" href="a05363.html#a267">EndRibbonStorage</a>), 0.f);
00572 }
00573
00574
00575 <span class="comment">//======================================================= </span>
<a name="l00576"></a><a class="code" href="a03227.html#NL3D_1_1CPSRibbonBasez753_1">00576</a> <span class="keywordtype">void</span> CPSRibbonBase::serial(<a class="code" href="a02270.html">NLMISC::IStream</a> &f) <span class="keywordflow">throw</span>(<a class="code" href="a03781.html">NLMISC::EStream</a>)
00577 {
00578 CPSParticle::serial(f);
00579 <a class="code" href="a04558.html#a14">sint</a> ver = f.serialVersion(1);
00580 f.serialEnum(_RibbonMode);
00581 f.serialEnum(_InterpolationMode);
00582 f.serial(_NbSegs, _SegDuration);
00583 <span class="keywordflow">if</span> (_RibbonMode == FixedSize)
00584 {
00585 f.serial(_RibbonLength);
00586 <span class="keywordflow">if</span> (f.isReading())
00587 {
00588 _SegLength = _RibbonLength / _NbSegs;
00589 }
00590 }
00591
00592 <span class="keywordflow">if</span> (f.isReading())
00593 {
00594 <span class="keywordflow">if</span> (_Owner)
00595 {
00596 resize(_Owner->getMaxSize());
00597 initDateVect();
00598 resetFromOwner();
00599 }
00600 }
00601
00602 <span class="keywordflow">if</span> (ver >= 1)
00603 {
00604 f.serial(_LODDegradation);
00605 }
00606 }
00607
00608
00609 <span class="comment">//======================================================= </span>
<a name="l00610"></a><a class="code" href="a03227.html#NL3D_1_1CPSTailDotb20">00610</a> <span class="keywordtype">void</span> CPSRibbonBase::updateLOD()
00611 {
00612 <a class="code" href="a04199.html#a6">nlassert</a>(_Owner);
00613 <span class="keywordtype">float</span> ratio = _Owner-><a class="code" href="a03054.html#NL3D_1_1CPSLocateda39">getOwner</a>()-><a class="code" href="a03041.html#NL3D_1_1CParticleSystemz596_15">getOneMinusCurrentLODRatio</a>();
00614 <span class="keywordtype">float</span> squaredRatio = ratio * ratio;
00615 <span class="keywordtype">float</span> lodRatio = _LODDegradation + (1.f - _LODDegradation ) * squaredRatio * squaredRatio * squaredRatio;
00616
00617 <a class="code" href="a03227.html#NL3D_1_1CPSTailDotp11">_UsedNbSegs</a> = (<a class="code" href="a04558.html#a15">uint</a>) (<a class="code" href="a03227.html#NL3D_1_1CPSTailDotp7">_NbSegs</a> * lodRatio);
00618 <a class="code" href="a05378.html#a374">NLMISC::clamp</a>(<a class="code" href="a03227.html#NL3D_1_1CPSTailDotp11">_UsedNbSegs</a>, 0u, <a class="code" href="a03227.html#NL3D_1_1CPSTailDotp7">_NbSegs</a>);
00619 <span class="keyword">const</span> <span class="keywordtype">float</span> epsilon = 10E-4f;
00620 <a class="code" href="a03227.html#NL3D_1_1CPSTailDotp12">_UsedSegDuration</a> = <a class="code" href="a03227.html#NL3D_1_1CPSTailDotp10">_SegDuration</a> / std::max(epsilon, lodRatio);
00621 <a class="code" href="a03227.html#NL3D_1_1CPSTailDotp13">_UsedSegLength</a> = <a class="code" href="a03227.html#NL3D_1_1CPSRibbonBaser8">_SegLength</a> / std::max(epsilon, lodRatio);
00622
00623 }
00624
00625 <span class="comment">//======================================================= </span>
<a name="l00626"></a><a class="code" href="a03227.html#NL3D_1_1CPSRibbonBased6">00626</a> <span class="keywordtype">void</span> CPSRibbonBase::systemDateChanged()
00627 {
00628 <a class="code" href="a04199.html#a6">nlassert</a>(_Owner-><a class="code" href="a03054.html#NL3D_1_1CPSLocateda39">getOwner</a>());
00629 _Owner-><a class="code" href="a03054.html#NL3D_1_1CPSLocateda39">getOwner</a>()-><a class="code" href="a03041.html#NL3D_1_1CParticleSystemz584_1">getSystemDate</a>();
00630 <span class="keywordtype">float</span> date = _Owner-><a class="code" href="a03054.html#NL3D_1_1CPSLocateda39">getOwner</a>()-><a class="code" href="a03041.html#NL3D_1_1CParticleSystemz584_1">getSystemDate</a>();
00631 std::fill(<a class="code" href="a03227.html#NL3D_1_1CPSRibbonBaser7">_SamplingDate</a>.begin(), <a class="code" href="a03227.html#NL3D_1_1CPSRibbonBaser7">_SamplingDate</a>.end(), date);
00632 _LastUpdateDate = date;
00633 }
00634
00635
00636
00637 } <span class="comment">// NL3D</span>
00638
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