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<title>NeL: CTrackKeyFramerBezier< CKeyBezierQuat, CQuat > class Reference</title>
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<h1>CTrackKeyFramerBezier< CKeyBezierQuat, CQuat > Class Reference</h1><code>#include <<a class="el" href="a06557.html">track_bezier.h</a>></code>
<p>
<hr><a name="_details"></a><h2>Detailed Description</h2>
ITrack implementation for Bezier Quaternion keyframer.<p>
<dl compact><dt><b>Author:</b></dt><dd>Lionel Berneguier <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="a06557.html#l00131">131</a> of file <a class="el" href="a06557.html">track_bezier.h</a>.<table border=0 cellpadding=0 cellspacing=0>
<tr><td></td></tr>
<tr><td colspan=2><br><h2>Public Member Functions</h2></td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top>virtual const IAnimatedValue & </td><td class="memItemRight" valign=bottom><a class="el" href="a03556.html#CTrackKeyFramerBezier_3_01CKeyBezierQuat_00_01CQuat_01_4a0">getValue</a> () const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">From ITrack. <a href="#CTrackKeyFramerBezier_3_01CKeyBezierQuat_00_01CQuat_01_4a0"></a><br><br></td></tr>
<tr><td colspan=2><br><h2>Protected Member Functions</h2></td></tr>
<tr><td colspan="2"><div class="groupHeader">From ITrackKeyFramer</div></td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top>virtual void </td><td class="memItemRight" valign=bottom><a class="el" href="a03556.html#CTrackKeyFramerBezier_3_01CKeyBezierQuat_00_01CQuat_01_4z1000_0">compile</a> ()</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">compile (precalc). <a href="#CTrackKeyFramerBezier_3_01CKeyBezierQuat_00_01CQuat_01_4z1000_0"></a><br><br></td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top>virtual void </td><td class="memItemRight" valign=bottom><a class="el" href="a03556.html#CTrackKeyFramerBezier_3_01CKeyBezierQuat_00_01CQuat_01_4z1000_1">evalKey</a> (const CKeyBezierQuat *previous, const CKeyBezierQuat *next, TAnimationTime datePrevious, TAnimationTime dateNext, TAnimationTime date)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">evalKey (runtime). <a href="#CTrackKeyFramerBezier_3_01CKeyBezierQuat_00_01CQuat_01_4z1000_1"></a><br><br></td></tr>
<tr><td colspan=2><br><h2>Private Attributes</h2></td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top>CAnimatedValueBlendable< CQuat > </td><td class="memItemRight" valign=bottom><a class="el" href="a03556.html#CTrackKeyFramerBezier_3_01CKeyBezierQuat_00_01CQuat_01_4r0">_Value</a></td></tr>
</table>
<hr><h2>Member Function Documentation</h2>
<a class="anchor" name="CTrackKeyFramerBezier_3_01CKeyBezierQuat_00_01CQuat_01_4z1000_0" doxytag="CTrackKeyFramerBezier< CKeyBezierQuat, CQuat >::compile" ></a><p>
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<td class="md" nowrap valign="top"> virtual void <a class="el" href="a03552.html">CTrackKeyFramerBezier</a>< CKeyBezierQuat, CQuat >::compile </td>
<td class="md" valign="top">( </td>
<td class="mdname1" valign="top" nowrap> </td>
<td class="md" valign="top"> ) </td>
<td class="md" nowrap><code> [inline, protected, virtual]</code></td>
</tr>
</table>
</td>
</tr>
</table>
<table cellspacing=5 cellpadding=0 border=0>
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<td>
</td>
<td>
<p>
compile (precalc).
<p>
<p>
Definition at line <a class="el" href="a06557.html#l00172">172</a> of file <a class="el" href="a06557.html">track_bezier.h</a>.
<p>
References <a class="el" href="a05646.html#l00993">r</a>, and <a class="el" href="a05981.html#l00104">sint</a>.
<p>
<div class="fragment"><pre>00173 {
00174 ITrackKeyFramer<CKeyBezierQuat>::compile();
00175
00176 <span class="comment">// makeclosest quaternions, Tangents Precompute.</span>
00177 <a class="code" href="a04558.html#a14">sint</a> nKeys= _MapKey.size();
00178 <span class="keywordflow">if</span>(nKeys<=1)
00179 <span class="keywordflow">return</span>;
00180
00181 TMapTimeCKey::iterator it;
00182 TMapTimeCKey::iterator itNext;
00183 TMapTimeCKey::iterator itPrev;
00184
00185 it= _MapKey.begin(); <span class="comment">// first key.</span>
00186 itNext= it; itNext++; <span class="comment">// second key.</span>
00187 itPrev= _MapKey.end(); <span class="comment">// end key.</span>
00188
00189 <span class="comment">// Compute all keys.</span>
00190 <span class="keywordflow">for</span>(;it!=_MapKey.end();)
00191 {
00192
00193 <a class="code" href="a05363.html#a51">CKeyBezierQuat</a> &key= it->second;
00194 CQuat &cur= key.Value;
00195
00196 <span class="keywordflow">if</span>(itPrev!= _MapKey.end())
00197 {
00198 cur.makeClosest(itPrev->second.Value);
00199 }
00200
00201 CQuat prev, next;
00202
00203 <span class="comment">// compute prev / next.</span>
00204 <span class="keywordflow">if</span>(itPrev!= _MapKey.end())
00205 prev= itPrev->second.Value;
00206 <span class="keywordflow">else</span>
00207 prev= itNext->second.Value;
00208 <span class="keywordflow">if</span>(itNext!= _MapKey.end())
00209 next= itNext->second.Value;
00210 <span class="keywordflow">else</span>
00211 next= itPrev->second.Value;
00212
00213 <span class="comment">// Compute A.</span>
00214 CQuat qm,qp,<a class="code" href="a04223.html#a628">r</a>;
00215
00216 qm = CQuat::lnDif(cur, prev);
00217 qp = CQuat::lnDif(cur, next);
00218 <a class="code" href="a04223.html#a628">r</a> = -.25f*(qm+qp);
00219 key.A= cur*(<a class="code" href="a04223.html#a628">r</a>.exp());
00220
00221 <span class="comment">// Next key!!</span>
00222 itPrev= it;
00223 it++;
00224
00225 <span class="keywordflow">if</span>(itNext!= _MapKey.end())
00226 itNext++;
00227 }
00228
00229 }
</pre></div> </td>
</tr>
</table>
<a class="anchor" name="CTrackKeyFramerBezier_3_01CKeyBezierQuat_00_01CQuat_01_4z1000_1" doxytag="CTrackKeyFramerBezier< CKeyBezierQuat, CQuat >::evalKey" ></a><p>
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<td class="md" nowrap valign="top"> virtual void <a class="el" href="a03552.html">CTrackKeyFramerBezier</a>< CKeyBezierQuat, CQuat >::evalKey </td>
<td class="md" valign="top">( </td>
<td class="md" nowrap valign="top">const CKeyBezierQuat * </td>
<td class="mdname" nowrap> <em>previous</em>, </td>
</tr>
<tr>
<td class="md" nowrap align="right"></td>
<td></td>
<td class="md" nowrap>const CKeyBezierQuat * </td>
<td class="mdname" nowrap> <em>next</em>, </td>
</tr>
<tr>
<td class="md" nowrap align="right"></td>
<td></td>
<td class="md" nowrap>TAnimationTime </td>
<td class="mdname" nowrap> <em>datePrevious</em>, </td>
</tr>
<tr>
<td class="md" nowrap align="right"></td>
<td></td>
<td class="md" nowrap>TAnimationTime </td>
<td class="mdname" nowrap> <em>dateNext</em>, </td>
</tr>
<tr>
<td class="md" nowrap align="right"></td>
<td></td>
<td class="md" nowrap>TAnimationTime </td>
<td class="mdname" nowrap> <em>date</em></td>
</tr>
<tr>
<td></td>
<td class="md">) </td>
<td class="md" colspan="2"><code> [inline, protected, virtual]</code></td>
</tr>
</table>
</td>
</tr>
</table>
<table cellspacing=5 cellpadding=0 border=0>
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<td>
</td>
<td>
<p>
evalKey (runtime).
<p>
<p>
Definition at line <a class="el" href="a06557.html#l00147">147</a> of file <a class="el" href="a06557.html">track_bezier.h</a>.
<p>
References <a class="el" href="a05587.html#l00115">NLMISC::clamp()</a>.
<p>
<div class="fragment"><pre>00150 {
00151 <span class="keywordflow">if</span>(previous && next)
00152 {
00153 <span class="comment">// lerp from previous to cur.</span>
00154 date-= datePrevious;
00155 date*= previous->OODeltaTime;
00156 <a class="code" href="a05378.html#a374">NLMISC::clamp</a>(date, 0,1);
00157
00158 <span class="comment">// quad slerp.</span>
00159 <a class="code" href="a03556.html#CTrackKeyFramerBezier_3_01CKeyBezierQuat_00_01CQuat_01_4r0">_Value</a>.Value = CQuat::squad(previous->Value, previous->A, next->A, next->Value, date);
00160 }
00161 <span class="keywordflow">else</span>
00162 {
00163 <span class="keywordflow">if</span> (previous)
00164 <a class="code" href="a05363.html#a540">copyToValue</a>(<a class="code" href="a03556.html#CTrackKeyFramerBezier_3_01CKeyBezierQuat_00_01CQuat_01_4r0">_Value</a>.Value, previous->Value);
00165 <span class="keywordflow">else</span>
00166 <span class="keywordflow">if</span> (next)
00167 <a class="code" href="a05363.html#a540">copyToValue</a>(<a class="code" href="a03556.html#CTrackKeyFramerBezier_3_01CKeyBezierQuat_00_01CQuat_01_4r0">_Value</a>.Value, next->Value);
00168 }
00169 }
</pre></div> </td>
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</table>
<a class="anchor" name="CTrackKeyFramerBezier_3_01CKeyBezierQuat_00_01CQuat_01_4a0" doxytag="CTrackKeyFramerBezier< CKeyBezierQuat, CQuat >::getValue" ></a><p>
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<td class="md" nowrap valign="top"> virtual const IAnimatedValue& <a class="el" href="a03552.html">CTrackKeyFramerBezier</a>< CKeyBezierQuat, CQuat >::getValue </td>
<td class="md" valign="top">( </td>
<td class="mdname1" valign="top" nowrap> </td>
<td class="md" valign="top"> ) </td>
<td class="md" nowrap> const<code> [inline, virtual]</code></td>
</tr>
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</td>
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</td>
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<p>
From ITrack.
<p>
<p>
Definition at line <a class="el" href="a06557.html#l00136">136</a> of file <a class="el" href="a06557.html">track_bezier.h</a>.
<p>
<div class="fragment"><pre>00137 {
00138 <span class="keywordflow">return</span> <a class="code" href="a03556.html#CTrackKeyFramerBezier_3_01CKeyBezierQuat_00_01CQuat_01_4r0">_Value</a>;
00139 }
</pre></div> </td>
</tr>
</table>
<hr><h2>Field Documentation</h2>
<a class="anchor" name="CTrackKeyFramerBezier_3_01CKeyBezierQuat_00_01CQuat_01_4r0" doxytag="CTrackKeyFramerBezier< CKeyBezierQuat, CQuat >::_Value" ></a><p>
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<td class="md" nowrap valign="top"> CAnimatedValueBlendable<CQuat> <a class="el" href="a03552.html">CTrackKeyFramerBezier</a>< CKeyBezierQuat, CQuat >::<a class="el" href="a03556.html#CTrackKeyFramerBezier_3_01CKeyBezierQuat_00_01CQuat_01_4r0">_Value</a><code> [private]</code>
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</td>
<td>
<p>
<p>
Definition at line <a class="el" href="a06557.html#l00234">234</a> of file <a class="el" href="a06557.html">track_bezier.h</a>. </td>
</tr>
</table>
<hr>The documentation for this class was generated from the following file:<ul>
<li><a class="el" href="a06557.html">track_bezier.h</a></ul>
<hr size="1"><address style="align: right;"><small>Generated on Tue Mar 16 06:43:54 2004 for NeL by
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