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+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
+<html><head><meta http-equiv="Content-Type" content="text/html;charset=iso-8859-1">
+<title>NeL: TemplateCTCBTools&lt; CKeyT, T, TMapTimeCKey &gt; class Reference</title>
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+<!-- Generated by Doxygen 1.3.6 -->
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+<h1>CTCBTools&lt; CKeyT, T, TMapTimeCKey &gt; Class Template Reference</h1><code>#include &lt;<a class="el" href="a06566.html">track_tcb.h</a>&gt;</code>
+<p>
+<p>Inheritance diagram for CTCBTools&lt; CKeyT, T, TMapTimeCKey &gt;:
+<p><center><img src="a03471.png" usemap="#CTCBTools< CKeyT, T, TMapTimeCKey >_map" border="0" alt=""></center>
+<map name="CTCBTools< CKeyT, T, TMapTimeCKey >_map">
+<area href="a03581.html" alt="CTrackKeyFramerTCB< CKeyT, T >" shape="rect" coords="0,56,374,80">
+<area href="a03583.html" alt="CTrackKeyFramerTCB< CKeyTCBQuat, NLMISC::CAngleAxis >" shape="rect" coords="384,56,758,80">
+</map>
+<hr><a name="_details"></a><h2>Detailed Description</h2>
+<h3>template&lt;class CKeyT, class T, class TMapTimeCKey&gt;<br>
+ class CTCBTools&lt; CKeyT, T, TMapTimeCKey &gt;</h3>
+
+TCB Track tools (for both normal TCB, and quat TCB). internal use.<p>
+<dl compact><dt><b>Author:</b></dt><dd>Cyril 'Hulud' Corvazier <p>
+Nevrax France </dd></dl>
+<dl compact><dt><b>Date:</b></dt><dd>2001 </dd></dl>
+
+<p>
+
+<p>
+Definition at line <a class="el" href="a06566.html#l00048">48</a> of file <a class="el" href="a06566.html">track_tcb.h</a>.<table border=0 cellpadding=0 cellspacing=0>
+<tr><td></td></tr>
+<tr><td colspan=2><br><h2>Protected Types</h2></td></tr>
+<tr><td class="memItemLeft" nowrap align=right valign=top>typedef TMapTimeCKey::iterator&nbsp;</td><td class="memItemRight" valign=bottom><a class="el" href="a03471.html#CTrackKeyFramerTCB_3_01CKeyTCBQuat_00_01NLMISC_1_1CAngleAxis_01_4y0">TMapTimeCKeyIterator</a></td></tr>
+
+<tr><td colspan=2><br><h2>Protected Member Functions</h2></td></tr>
+<tr><td class="memItemLeft" nowrap align=right valign=top>void&nbsp;</td><td class="memItemRight" valign=bottom><a class="el" href="a03471.html#CTrackKeyFramerTCB_3_01CKeyTCBQuat_00_01NLMISC_1_1CAngleAxis_01_4d0">compileTCBEase</a> (TMapTimeCKey &amp;mapKey, bool loopMode)</td></tr>
+
+<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">compute TCB ease information. <a href="#CTrackKeyFramerTCB_3_01CKeyTCBQuat_00_01NLMISC_1_1CAngleAxis_01_4d0"></a><br><br></td></tr>
+<tr><td class="memItemLeft" nowrap align=right valign=top>void&nbsp;</td><td class="memItemRight" valign=bottom><a class="el" href="a03471.html#CTrackKeyFramerTCB_3_01CKeyTCBQuat_00_01NLMISC_1_1CAngleAxis_01_4d1">computeHermiteBasis</a> (float d, float hb[4])</td></tr>
+
+<tr><td class="memItemLeft" nowrap align=right valign=top>void&nbsp;</td><td class="memItemRight" valign=bottom><a class="el" href="a03471.html#CTrackKeyFramerTCB_3_01CKeyTCBQuat_00_01NLMISC_1_1CAngleAxis_01_4d2">computeTCBFactors</a> (const CKeyT &amp;key, float timeBefore, float time, float timeAfter, float rangeDelta, bool firstKey, bool endKey, bool isLoop, float &amp;ksm, float &amp;ksp, float &amp;kdm, float &amp;kdp)</td></tr>
+
+<tr><td class="memItemLeft" nowrap align=right valign=top>float&nbsp;</td><td class="memItemRight" valign=bottom><a class="el" href="a03471.html#CTrackKeyFramerTCB_3_01CKeyTCBQuat_00_01NLMISC_1_1CAngleAxis_01_4d4">ease</a> (const CKeyT *key, float d)</td></tr>
+
+</table>
+<hr><h2>Member Typedef Documentation</h2>
+<a class="anchor" name="CTrackKeyFramerTCB_3_01CKeyTCBQuat_00_01NLMISC_1_1CAngleAxis_01_4y0" doxytag="CTCBTools::TMapTimeCKeyIterator" ></a><p>
+<table class="mdTable" width="100%" cellpadding="2" cellspacing="0">
+ <tr>
+ <td class="mdRow">
+ <table cellpadding="0" cellspacing="0" border="0">
+ <tr>
+ <td class="md" colspan="4">
+template&lt;class CKeyT, class T, class TMapTimeCKey&gt; </td>
+ </tr>
+ <tr>
+ <td class="md" nowrap valign="top"> typedef TMapTimeCKey::iterator <a class="el" href="a03471.html">CTCBTools</a>&lt; CKeyT, T, TMapTimeCKey &gt;::<a class="el" href="a03471.html#CTrackKeyFramerTCB_3_01CKeyTCBQuat_00_01NLMISC_1_1CAngleAxis_01_4y0">TMapTimeCKeyIterator</a><code> [protected]</code>
+ </table>
+ </td>
+ </tr>
+</table>
+<table cellspacing=5 cellpadding=0 border=0>
+ <tr>
+ <td>
+ &nbsp;
+ </td>
+ <td>
+
+<p>
+
+<p>
+Definition at line <a class="el" href="a06566.html#l00051">51</a> of file <a class="el" href="a06566.html">track_tcb.h</a>. </td>
+ </tr>
+</table>
+<hr><h2>Member Function Documentation</h2>
+<a class="anchor" name="CTrackKeyFramerTCB_3_01CKeyTCBQuat_00_01NLMISC_1_1CAngleAxis_01_4d0" doxytag="CTCBTools::compileTCBEase" ></a><p>
+<table class="mdTable" width="100%" cellpadding="2" cellspacing="0">
+ <tr>
+ <td class="mdRow">
+ <table cellpadding="0" cellspacing="0" border="0">
+ <tr>
+ <td class="md" colspan="4">
+template&lt;class CKeyT, class T, class TMapTimeCKey&gt; </td>
+ </tr>
+ <tr>
+ <td class="md" nowrap valign="top"> void <a class="el" href="a03471.html">CTCBTools</a>&lt; CKeyT, T, TMapTimeCKey &gt;::compileTCBEase </td>
+ <td class="md" valign="top">(&nbsp;</td>
+ <td class="md" nowrap valign="top">TMapTimeCKey &amp;&nbsp;</td>
+ <td class="mdname" nowrap> <em>mapKey</em>, </td>
+ </tr>
+ <tr>
+ <td class="md" nowrap align="right"></td>
+ <td></td>
+ <td class="md" nowrap>bool&nbsp;</td>
+ <td class="mdname" nowrap> <em>loopMode</em></td>
+ </tr>
+ <tr>
+ <td></td>
+ <td class="md">)&nbsp;</td>
+ <td class="md" colspan="2"><code> [inline, protected]</code></td>
+ </tr>
+
+ </table>
+ </td>
+ </tr>
+</table>
+<table cellspacing=5 cellpadding=0 border=0>
+ <tr>
+ <td>
+ &nbsp;
+ </td>
+ <td>
+
+<p>
+compute TCB ease information.
+<p>
+
+<p>
+Definition at line <a class="el" href="a06566.html#l00056">56</a> of file <a class="el" href="a06566.html">track_tcb.h</a>.
+<p>
+Referenced by <a class="el" href="a06566.html#l00430">CTrackKeyFramerTCB&lt; CKeyTCBQuat, NLMISC::CAngleAxis &gt;::compile()</a>, and <a class="el" href="a06566.html#l00253">CTrackKeyFramerTCB&lt; CKeyT, T &gt;::compile()</a>.
+<p>
+<div class="fragment"><pre>00057 {
+00058 <a class="code" href="a03471.html#CTrackKeyFramerTCB_3_01CKeyTCBQuat_00_01NLMISC_1_1CAngleAxis_01_4y0">TMapTimeCKeyIterator</a> it= mapKey.begin();
+00059 <span class="keywordflow">for</span>(;it!=mapKey.end();it++)
+00060 {
+00061 <a class="code" href="a03471.html#CTrackKeyFramerTCB_3_01CKeyTCBQuat_00_01NLMISC_1_1CAngleAxis_01_4y0">TMapTimeCKeyIterator</a> next= it;
+00062 next++;
+00063
+00064 <span class="comment">// loop mgt. must compute ease from last to first (usefull if _RangeLock is false).</span>
+00065 <span class="keywordflow">if</span>(next==mapKey.end() &amp;&amp; loopMode &amp;&amp; mapKey.size()&gt;1)
+00066 next= mapKey.begin();
+00067
+00068 <span class="comment">// Ease Precompute.</span>
+00069 <span class="comment">//=================</span>
+00070 CKeyT &amp;key= it-&gt;second;
+00071 <span class="keywordflow">if</span>(next!=mapKey.end())
+00072 {
+00073 <span class="keywordtype">float</span> e0= it-&gt;second.EaseFrom;
+00074 <span class="keywordtype">float</span> e1= next-&gt;second.EaseTo;
+00075 <span class="keywordtype">float</span> <a class="code" href="a04223.html#a626">s</a> = e0 + e1;
+00076
+00077 <span class="comment">// "normalize".</span>
+00078 <span class="keywordflow">if</span> (<a class="code" href="a04223.html#a626">s</a> &gt; 1.0f)
+00079 {
+00080 e0 = e0/<a class="code" href="a04223.html#a626">s</a>;
+00081 e1 = e1/<a class="code" href="a04223.html#a626">s</a>;
+00082 }
+00083
+00084 <span class="comment">// precalc ease factors.</span>
+00085 key.Ease0= e0;
+00086 key.Ease1= e1;
+00087 key.EaseK= 1/(2.0f - e0 - e1);
+00088 <span class="keywordflow">if</span>(e0)
+00089 key.EaseKOverEase0= key.EaseK / e0;
+00090 <span class="keywordflow">if</span>(e1)
+00091 key.EaseKOverEase1= key.EaseK / e1;
+00092 }
+00093 <span class="keywordflow">else</span>
+00094 {
+00095 <span class="comment">// force ease() to just return d (see ease()).</span>
+00096 key.EaseK = 0.5f;
+00097 }
+00098
+00099 }
+00100 }
+</pre></div> </td>
+ </tr>
+</table>
+<a class="anchor" name="CTrackKeyFramerTCB_3_01CKeyTCBQuat_00_01NLMISC_1_1CAngleAxis_01_4d1" doxytag="CTCBTools::computeHermiteBasis" ></a><p>
+<table class="mdTable" width="100%" cellpadding="2" cellspacing="0">
+ <tr>
+ <td class="mdRow">
+ <table cellpadding="0" cellspacing="0" border="0">
+ <tr>
+ <td class="md" colspan="4">
+template&lt;class CKeyT, class T, class TMapTimeCKey&gt; </td>
+ </tr>
+ <tr>
+ <td class="md" nowrap valign="top"> void <a class="el" href="a03471.html">CTCBTools</a>&lt; CKeyT, T, TMapTimeCKey &gt;::computeHermiteBasis </td>
+ <td class="md" valign="top">(&nbsp;</td>
+ <td class="md" nowrap valign="top">float&nbsp;</td>
+ <td class="mdname" nowrap> <em>d</em>, </td>
+ </tr>
+ <tr>
+ <td class="md" nowrap align="right"></td>
+ <td></td>
+ <td class="md" nowrap>float&nbsp;</td>
+ <td class="mdname" nowrap> <em>hb</em>[4]</td>
+ </tr>
+ <tr>
+ <td></td>
+ <td class="md">)&nbsp;</td>
+ <td class="md" colspan="2"><code> [inline, protected]</code></td>
+ </tr>
+
+ </table>
+ </td>
+ </tr>
+</table>
+<table cellspacing=5 cellpadding=0 border=0>
+ <tr>
+ <td>
+ &nbsp;
+ </td>
+ <td>
+
+<p>
+
+<p>
+Definition at line <a class="el" href="a06566.html#l00121">121</a> of file <a class="el" href="a06566.html">track_tcb.h</a>.
+<p>
+Referenced by <a class="el" href="a06566.html#l00223">CTrackKeyFramerTCB&lt; CKeyT, T &gt;::evalKey()</a>.
+<p>
+<div class="fragment"><pre>00122 {
+00123 <span class="keywordtype">float</span> d2,d3,a;
+00124
+00125 d2 = d*d;
+00126 d3 = d2*d;
+00127 a = 3.0f*d2 - 2.0f*d3;
+00128 hb[0] = 1.0f - a;
+00129 hb[1] = a;
+00130 hb[2] = d3 - 2.0f*d2 + d;
+00131 hb[3] = d3 - d2;
+00132 }
+</pre></div> </td>
+ </tr>
+</table>
+<a class="anchor" name="CTrackKeyFramerTCB_3_01CKeyTCBQuat_00_01NLMISC_1_1CAngleAxis_01_4d2" doxytag="CTCBTools::computeTCBFactors" ></a><p>
+<table class="mdTable" width="100%" cellpadding="2" cellspacing="0">
+ <tr>
+ <td class="mdRow">
+ <table cellpadding="0" cellspacing="0" border="0">
+ <tr>
+ <td class="md" colspan="4">
+template&lt;class CKeyT, class T, class TMapTimeCKey&gt; </td>
+ </tr>
+ <tr>
+ <td class="md" nowrap valign="top"> void <a class="el" href="a03471.html">CTCBTools</a>&lt; CKeyT, T, TMapTimeCKey &gt;::computeTCBFactors </td>
+ <td class="md" valign="top">(&nbsp;</td>
+ <td class="md" nowrap valign="top">const CKeyT &amp;&nbsp;</td>
+ <td class="mdname" nowrap> <em>key</em>, </td>
+ </tr>
+ <tr>
+ <td class="md" nowrap align="right"></td>
+ <td></td>
+ <td class="md" nowrap>float&nbsp;</td>
+ <td class="mdname" nowrap> <em>timeBefore</em>, </td>
+ </tr>
+ <tr>
+ <td class="md" nowrap align="right"></td>
+ <td></td>
+ <td class="md" nowrap>float&nbsp;</td>
+ <td class="mdname" nowrap> <em>time</em>, </td>
+ </tr>
+ <tr>
+ <td class="md" nowrap align="right"></td>
+ <td></td>
+ <td class="md" nowrap>float&nbsp;</td>
+ <td class="mdname" nowrap> <em>timeAfter</em>, </td>
+ </tr>
+ <tr>
+ <td class="md" nowrap align="right"></td>
+ <td></td>
+ <td class="md" nowrap>float&nbsp;</td>
+ <td class="mdname" nowrap> <em>rangeDelta</em>, </td>
+ </tr>
+ <tr>
+ <td class="md" nowrap align="right"></td>
+ <td></td>
+ <td class="md" nowrap>bool&nbsp;</td>
+ <td class="mdname" nowrap> <em>firstKey</em>, </td>
+ </tr>
+ <tr>
+ <td class="md" nowrap align="right"></td>
+ <td></td>
+ <td class="md" nowrap>bool&nbsp;</td>
+ <td class="mdname" nowrap> <em>endKey</em>, </td>
+ </tr>
+ <tr>
+ <td class="md" nowrap align="right"></td>
+ <td></td>
+ <td class="md" nowrap>bool&nbsp;</td>
+ <td class="mdname" nowrap> <em>isLoop</em>, </td>
+ </tr>
+ <tr>
+ <td class="md" nowrap align="right"></td>
+ <td></td>
+ <td class="md" nowrap>float &amp;&nbsp;</td>
+ <td class="mdname" nowrap> <em>ksm</em>, </td>
+ </tr>
+ <tr>
+ <td class="md" nowrap align="right"></td>
+ <td></td>
+ <td class="md" nowrap>float &amp;&nbsp;</td>
+ <td class="mdname" nowrap> <em>ksp</em>, </td>
+ </tr>
+ <tr>
+ <td class="md" nowrap align="right"></td>
+ <td></td>
+ <td class="md" nowrap>float &amp;&nbsp;</td>
+ <td class="mdname" nowrap> <em>kdm</em>, </td>
+ </tr>
+ <tr>
+ <td class="md" nowrap align="right"></td>
+ <td></td>
+ <td class="md" nowrap>float &amp;&nbsp;</td>
+ <td class="mdname" nowrap> <em>kdp</em></td>
+ </tr>
+ <tr>
+ <td></td>
+ <td class="md">)&nbsp;</td>
+ <td class="md" colspan="2"><code> [inline, protected]</code></td>
+ </tr>
+
+ </table>
+ </td>
+ </tr>
+</table>
+<table cellspacing=5 cellpadding=0 border=0>
+ <tr>
+ <td>
+ &nbsp;
+ </td>
+ <td>
+
+<p>
+
+<p>
+Definition at line <a class="el" href="a06566.html#l00136">136</a> of file <a class="el" href="a06566.html">track_tcb.h</a>.
+<p>
+Referenced by <a class="el" href="a06566.html#l00520">CTrackKeyFramerTCB&lt; CKeyTCBQuat, NLMISC::CAngleAxis &gt;::computeTCBKey()</a>, and <a class="el" href="a06566.html#l00326">CTrackKeyFramerTCB&lt; CKeyT, T &gt;::computeTCBKey()</a>.
+<p>
+<div class="fragment"><pre>00138 {
+00139 <span class="keywordtype">float</span> fp,fn;
+00140
+00141 <span class="keywordflow">if</span>(isLoop || (!firstKey &amp;&amp; !endKey))
+00142 {
+00143 <span class="keywordtype">float</span> dtm;
+00144 <span class="comment">// Compute Time deltas.</span>
+00145 <span class="keywordflow">if</span> (firstKey)
+00146 {
+00147 dtm = 0.5f * (rangeDelta + timeAfter - time);
+00148 fp = rangeDelta / dtm;
+00149 fn = (timeAfter - time) / dtm;
+00150 }
+00151 <span class="keywordflow">else</span> <span class="keywordflow">if</span> (endKey)
+00152 {
+00153 dtm = 0.5f * (rangeDelta + time - timeBefore);
+00154 fp = rangeDelta / dtm;
+00155 fn = (time - timeBefore) / dtm;
+00156 }
+00157 <span class="keywordflow">else</span>
+00158 {
+00159 dtm = 0.5f * (timeAfter - timeBefore);
+00160 fp = (time - timeBefore) / dtm;
+00161 fn = (timeAfter - time) / dtm;
+00162 }
+00163 <span class="keywordtype">float</span> c= (<span class="keywordtype">float</span>)fabs( key.Continuity );
+00164 fp = fp + c - c * fp;
+00165 fn = fn + c - c * fn;
+00166 }
+00167 <span class="keywordflow">else</span>
+00168 {
+00169 <span class="comment">// firstkey and lastkey of not loop track.</span>
+00170 fp = 1.0f;
+00171 fn = 1.0f;
+00172 }
+00173
+00174 <span class="comment">// Compute tangents factors.</span>
+00175 <span class="keywordtype">float</span> tm,cm,cp,bm,bp,tmcm,tmcp;
+00176
+00177 cm = 1.0f - key.Continuity;
+00178 tm = 0.5f * ( 1.0f - key.Tension );
+00179 cp = 2.0f - cm;
+00180 bm = 1.0f - key.Bias;
+00181 bp = 2.0f - bm;
+00182 tmcm = tm*cm; tmcp = tm*cp;
+00183
+00184 <span class="comment">// tgts factors.</span>
+00185 ksm = tmcm*bp*fp; ksp = tmcp*bm*fp;
+00186 kdm = tmcp*bp*fn; kdp = tmcm*bm*fn;
+00187
+00188 }
+</pre></div> </td>
+ </tr>
+</table>
+<a class="anchor" name="CTrackKeyFramerTCB_3_01CKeyTCBQuat_00_01NLMISC_1_1CAngleAxis_01_4d4" doxytag="CTCBTools::ease" ></a><p>
+<table class="mdTable" width="100%" cellpadding="2" cellspacing="0">
+ <tr>
+ <td class="mdRow">
+ <table cellpadding="0" cellspacing="0" border="0">
+ <tr>
+ <td class="md" colspan="4">
+template&lt;class CKeyT, class T, class TMapTimeCKey&gt; </td>
+ </tr>
+ <tr>
+ <td class="md" nowrap valign="top"> float <a class="el" href="a03471.html">CTCBTools</a>&lt; CKeyT, T, TMapTimeCKey &gt;::ease </td>
+ <td class="md" valign="top">(&nbsp;</td>
+ <td class="md" nowrap valign="top">const CKeyT *&nbsp;</td>
+ <td class="mdname" nowrap> <em>key</em>, </td>
+ </tr>
+ <tr>
+ <td class="md" nowrap align="right"></td>
+ <td></td>
+ <td class="md" nowrap>float&nbsp;</td>
+ <td class="mdname" nowrap> <em>d</em></td>
+ </tr>
+ <tr>
+ <td></td>
+ <td class="md">)&nbsp;</td>
+ <td class="md" colspan="2"><code> [inline, protected]</code></td>
+ </tr>
+
+ </table>
+ </td>
+ </tr>
+</table>
+<table cellspacing=5 cellpadding=0 border=0>
+ <tr>
+ <td>
+ &nbsp;
+ </td>
+ <td>
+
+<p>
+
+<p>
+Definition at line <a class="el" href="a06566.html#l00103">103</a> of file <a class="el" href="a06566.html">track_tcb.h</a>.
+<p>
+Referenced by <a class="el" href="a06566.html#l00401">CTrackKeyFramerTCB&lt; CKeyTCBQuat, NLMISC::CAngleAxis &gt;::evalKey()</a>, and <a class="el" href="a06566.html#l00223">CTrackKeyFramerTCB&lt; CKeyT, T &gt;::evalKey()</a>.
+<p>
+<div class="fragment"><pre>00104 {
+00105 <span class="keywordflow">if</span> (d==0.0f || d==1.0f) <span class="keywordflow">return</span> d;
+00106 <span class="comment">// k==0.5f &lt;=&gt; e0+e1 == 0.</span>
+00107 <span class="keywordflow">if</span> (key-&gt;EaseK == 0.5f) <span class="keywordflow">return</span> d;
+00108
+00109 <span class="keywordflow">if</span> (d &lt; key-&gt;Ease0)
+00110 <span class="keywordflow">return</span> key-&gt;EaseKOverEase0 * d*d;
+00111 <span class="keywordflow">else</span> <span class="keywordflow">if</span> (d &lt; 1.0f - key-&gt;Ease1)
+00112 <span class="keywordflow">return</span> key-&gt;EaseK * (2.0f*d - key-&gt;Ease0);
+00113 <span class="keywordflow">else</span>
+00114 {
+00115 d = 1.0f - d;
+00116 <span class="keywordflow">return</span> 1.0f - key-&gt;EaseKOverEase1 * d*d;
+00117 }
+00118 }
+</pre></div> </td>
+ </tr>
+</table>
+<hr>The documentation for this class was generated from the following file:<ul>
+<li><a class="el" href="a06566.html">track_tcb.h</a></ul>
+<hr size="1"><address style="align: right;"><small>Generated on Tue Mar 16 06:43:53 2004 for NeL by
+<a href="http://www.doxygen.org/index.html">
+<img src="doxygen.png" alt="doxygen" align="middle" border=0 >
+</a>1.3.6 </small></address>
+</body>
+</html>