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<h1>CTCBTools< CKeyT, T, TMapTimeCKey > Class Template Reference</h1><code>#include <<a class="el" href="a06566.html">track_tcb.h</a>></code>
<p>
<p>Inheritance diagram for CTCBTools< CKeyT, T, TMapTimeCKey >:
<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<class CKeyT, class T, class TMapTimeCKey><br>
class CTCBTools< CKeyT, T, TMapTimeCKey ></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 </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 </td><td class="memItemRight" valign=bottom><a class="el" href="a03471.html#CTrackKeyFramerTCB_3_01CKeyTCBQuat_00_01NLMISC_1_1CAngleAxis_01_4d0">compileTCBEase</a> (TMapTimeCKey &mapKey, bool loopMode)</td></tr>
<tr><td class="mdescLeft"> </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 </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 </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 &key, float timeBefore, float time, float timeAfter, float rangeDelta, bool firstKey, bool endKey, bool isLoop, float &ksm, float &ksp, float &kdm, float &kdp)</td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top>float </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>
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<td class="md" colspan="4">
template<class CKeyT, class T, class TMapTimeCKey> </td>
</tr>
<tr>
<td class="md" nowrap valign="top"> typedef TMapTimeCKey::iterator <a class="el" href="a03471.html">CTCBTools</a>< CKeyT, T, TMapTimeCKey >::<a class="el" href="a03471.html#CTrackKeyFramerTCB_3_01CKeyTCBQuat_00_01NLMISC_1_1CAngleAxis_01_4y0">TMapTimeCKeyIterator</a><code> [protected]</code>
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</td>
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<td>
</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">
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<td class="md" colspan="4">
template<class CKeyT, class T, class TMapTimeCKey> </td>
</tr>
<tr>
<td class="md" nowrap valign="top"> void <a class="el" href="a03471.html">CTCBTools</a>< CKeyT, T, TMapTimeCKey >::compileTCBEase </td>
<td class="md" valign="top">( </td>
<td class="md" nowrap valign="top">TMapTimeCKey & </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 </td>
<td class="mdname" nowrap> <em>loopMode</em></td>
</tr>
<tr>
<td></td>
<td class="md">) </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>
</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< CKeyTCBQuat, NLMISC::CAngleAxis >::compile()</a>, and <a class="el" href="a06566.html#l00253">CTrackKeyFramerTCB< CKeyT, T >::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() && loopMode && mapKey.size()>1)
00066 next= mapKey.begin();
00067
00068 <span class="comment">// Ease Precompute.</span>
00069 <span class="comment">//=================</span>
00070 CKeyT &key= it->second;
00071 <span class="keywordflow">if</span>(next!=mapKey.end())
00072 {
00073 <span class="keywordtype">float</span> e0= it->second.EaseFrom;
00074 <span class="keywordtype">float</span> e1= next->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> > 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<class CKeyT, class T, class TMapTimeCKey> </td>
</tr>
<tr>
<td class="md" nowrap valign="top"> void <a class="el" href="a03471.html">CTCBTools</a>< CKeyT, T, TMapTimeCKey >::computeHermiteBasis </td>
<td class="md" valign="top">( </td>
<td class="md" nowrap valign="top">float </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 </td>
<td class="mdname" nowrap> <em>hb</em>[4]</td>
</tr>
<tr>
<td></td>
<td class="md">) </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>
</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< CKeyT, T >::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<class CKeyT, class T, class TMapTimeCKey> </td>
</tr>
<tr>
<td class="md" nowrap valign="top"> void <a class="el" href="a03471.html">CTCBTools</a>< CKeyT, T, TMapTimeCKey >::computeTCBFactors </td>
<td class="md" valign="top">( </td>
<td class="md" nowrap valign="top">const CKeyT & </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 </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 </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 </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 </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 </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 </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 </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 & </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 & </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 & </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 & </td>
<td class="mdname" nowrap> <em>kdp</em></td>
</tr>
<tr>
<td></td>
<td class="md">) </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>
</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< CKeyTCBQuat, NLMISC::CAngleAxis >::computeTCBKey()</a>, and <a class="el" href="a06566.html#l00326">CTrackKeyFramerTCB< CKeyT, T >::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 && !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">
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template<class CKeyT, class T, class TMapTimeCKey> </td>
</tr>
<tr>
<td class="md" nowrap valign="top"> float <a class="el" href="a03471.html">CTCBTools</a>< CKeyT, T, TMapTimeCKey >::ease </td>
<td class="md" valign="top">( </td>
<td class="md" nowrap valign="top">const CKeyT * </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 </td>
<td class="mdname" nowrap> <em>d</em></td>
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<td class="md">) </td>
<td class="md" colspan="2"><code> [inline, protected]</code></td>
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Definition at line <a class="el" href="a06566.html#l00103">103</a> of file <a class="el" href="a06566.html">track_tcb.h</a>.
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Referenced by <a class="el" href="a06566.html#l00401">CTrackKeyFramerTCB< CKeyTCBQuat, NLMISC::CAngleAxis >::evalKey()</a>, and <a class="el" href="a06566.html#l00223">CTrackKeyFramerTCB< CKeyT, T >::evalKey()</a>.
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<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 <=> e0+e1 == 0.</span>
00107 <span class="keywordflow">if</span> (key->EaseK == 0.5f) <span class="keywordflow">return</span> d;
00108
00109 <span class="keywordflow">if</span> (d < key->Ease0)
00110 <span class="keywordflow">return</span> key->EaseKOverEase0 * d*d;
00111 <span class="keywordflow">else</span> <span class="keywordflow">if</span> (d < 1.0f - key->Ease1)
00112 <span class="keywordflow">return</span> key->EaseK * (2.0f*d - key->Ease0);
00113 <span class="keywordflow">else</span>
00114 {
00115 d = 1.0f - d;
00116 <span class="keywordflow">return</span> 1.0f - key->EaseKOverEase1 * d*d;
00117 }
00118 }
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<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
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