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<h1>dox/Common/vtkRungeKutta45.h</h1><a href="a02122.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/*=========================================================================</span>
<a name="l00002"></a>00002 <span class="comment"></span>
<a name="l00003"></a>00003 <span class="comment"> Program: Visualization Toolkit</span>
<a name="l00004"></a>00004 <span class="comment"> Module: $RCSfile: vtkRungeKutta45.h,v $</span>
<a name="l00005"></a>00005 <span class="comment"></span>
<a name="l00006"></a>00006 <span class="comment"> Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen</span>
<a name="l00007"></a>00007 <span class="comment"> All rights reserved.</span>
<a name="l00008"></a>00008 <span class="comment"> See Copyright.txt or http://www.kitware.com/Copyright.htm for details.</span>
<a name="l00009"></a>00009 <span class="comment"></span>
<a name="l00010"></a>00010 <span class="comment"> This software is distributed WITHOUT ANY WARRANTY; without even</span>
<a name="l00011"></a>00011 <span class="comment"> the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR</span>
<a name="l00012"></a>00012 <span class="comment"> PURPOSE. See the above copyright notice for more information.</span>
<a name="l00013"></a>00013 <span class="comment"></span>
<a name="l00014"></a>00014 <span class="comment">=========================================================================*/</span>
<a name="l00037"></a>00037 <span class="preprocessor">#ifndef __vtkRungeKutta45_h</span>
<a name="l00038"></a>00038 <span class="preprocessor"></span><span class="preprocessor">#define __vtkRungeKutta45_h</span>
<a name="l00039"></a>00039 <span class="preprocessor"></span>
<a name="l00040"></a>00040 <span class="preprocessor">#include "<a class="code" href="a02061.html">vtkInitialValueProblemSolver.h</a>"</span>
<a name="l00041"></a>00041
<a name="l00042"></a><a class="code" href="a01508.html">00042</a> <span class="keyword">class </span><a class="code" href="a02170.html#873ca0b83d0838a1df577536068a1730">VTK_COMMON_EXPORT</a> <a class="code" href="a01508.html" title="Integrate an initial value problem using 5th order Runge-Kutta method with adaptive...">vtkRungeKutta45</a> : <span class="keyword">public</span> <a class="code" href="a00896.html" title="Integrate a set of ordinary differential equations (initial value problem) in time...">vtkInitialValueProblemSolver</a>
<a name="l00043"></a>00043 {
<a name="l00044"></a>00044 <span class="keyword">public</span>:
<a name="l00045"></a><a class="code" href="a01508.html#a453e6c82a5035c164f8c4a89d592f62">00045</a> vtkTypeRevisionMacro(<a class="code" href="a01508.html" title="Integrate an initial value problem using 5th order Runge-Kutta method with adaptive...">vtkRungeKutta45</a>,<a class="code" href="a00896.html" title="Integrate a set of ordinary differential equations (initial value problem) in time...">vtkInitialValueProblemSolver</a>);
<a name="l00046"></a>00046 <span class="keywordtype">void</span> <a class="code" href="a00896.html#912bb660a8b123a17d2a03fecdd9f3e5">PrintSelf</a>(ostream& os, <a class="code" href="a00869.html" title="a simple class to control print indentation">vtkIndent</a> indent);
<a name="l00047"></a>00047
<a name="l00049"></a>00049 <span class="keyword">static</span> <a class="code" href="a01508.html" title="Integrate an initial value problem using 5th order Runge-Kutta method with adaptive...">vtkRungeKutta45</a> *<a class="code" href="a01084.html#4d5b227267c076d6f9e38483370b6612">New</a>();
<a name="l00050"></a>00050
<a name="l00052"></a>00052
<a name="l00067"></a><a class="code" href="a01508.html#d0b2aa358474f7acdb9e4a72b643de9f">00067</a> <span class="keyword">virtual</span> <span class="keywordtype">int</span> <a class="code" href="a00896.html#cc612bf025e902636510bc04ae83a168">ComputeNextStep</a>(<span class="keywordtype">double</span>* xprev, <span class="keywordtype">double</span>* xnext, <span class="keywordtype">double</span> t,
<a name="l00068"></a>00068 <span class="keywordtype">double</span>& delT, <span class="keywordtype">double</span> maxError, <span class="keywordtype">double</span>& error)
<a name="l00069"></a>00069 {
<a name="l00070"></a>00070 <span class="keywordtype">double</span> minStep = delT;
<a name="l00071"></a>00071 <span class="keywordtype">double</span> maxStep = delT;
<a name="l00072"></a>00072 <span class="keywordtype">double</span> delTActual;
<a name="l00073"></a>00073 <span class="keywordflow">return</span> this-><a class="code" href="a00896.html#cc612bf025e902636510bc04ae83a168">ComputeNextStep</a>(xprev, 0, xnext, t, delT, delTActual,
<a name="l00074"></a>00074 minStep, maxStep, maxError, error);
<a name="l00075"></a>00075 }
<a name="l00076"></a><a class="code" href="a01508.html#b58d895cc8f1806e8cf4a5a3acd52b15">00076</a> <span class="keyword">virtual</span> <span class="keywordtype">int</span> <a class="code" href="a00896.html#cc612bf025e902636510bc04ae83a168">ComputeNextStep</a>(<span class="keywordtype">double</span>* xprev, <span class="keywordtype">double</span>* dxprev, <span class="keywordtype">double</span>* xnext,
<a name="l00077"></a>00077 <span class="keywordtype">double</span> t, <span class="keywordtype">double</span>& delT,
<a name="l00078"></a>00078 <span class="keywordtype">double</span> maxError, <span class="keywordtype">double</span>& error)
<a name="l00079"></a>00079 {
<a name="l00080"></a>00080 <span class="keywordtype">double</span> minStep = delT;
<a name="l00081"></a>00081 <span class="keywordtype">double</span> maxStep = delT;
<a name="l00082"></a>00082 <span class="keywordtype">double</span> delTActual;
<a name="l00083"></a>00083 <span class="keywordflow">return</span> this-><a class="code" href="a00896.html#cc612bf025e902636510bc04ae83a168">ComputeNextStep</a>(xprev, dxprev, xnext, t, delT, delTActual,
<a name="l00084"></a>00084 minStep, maxStep, maxError, error);
<a name="l00085"></a>00085 }
<a name="l00086"></a><a class="code" href="a01508.html#c3a82d03d61728f57b5cdafd3c7c3aa0">00086</a> <span class="keyword">virtual</span> <span class="keywordtype">int</span> <a class="code" href="a00896.html#cc612bf025e902636510bc04ae83a168">ComputeNextStep</a>(<span class="keywordtype">double</span>* xprev, <span class="keywordtype">double</span>* xnext,
<a name="l00087"></a>00087 <span class="keywordtype">double</span> t, <span class="keywordtype">double</span>& delT, <span class="keywordtype">double</span>& delTActual,
<a name="l00088"></a>00088 <span class="keywordtype">double</span> minStep, <span class="keywordtype">double</span> maxStep,
<a name="l00089"></a>00089 <span class="keywordtype">double</span> maxError, <span class="keywordtype">double</span>& error)
<a name="l00090"></a>00090 {
<a name="l00091"></a>00091 <span class="keywordflow">return</span> this-><a class="code" href="a00896.html#cc612bf025e902636510bc04ae83a168">ComputeNextStep</a>(xprev, 0, xnext, t, delT, delTActual,
<a name="l00092"></a>00092 minStep, maxStep, maxError, error);
<a name="l00093"></a>00093 }
<a name="l00094"></a>00094 <span class="keyword">virtual</span> <span class="keywordtype">int</span> <a class="code" href="a00896.html#cc612bf025e902636510bc04ae83a168">ComputeNextStep</a>(<span class="keywordtype">double</span>* xprev, <span class="keywordtype">double</span>* dxprev, <span class="keywordtype">double</span>* xnext,
<a name="l00095"></a>00095 <span class="keywordtype">double</span> t, <span class="keywordtype">double</span>& delT, <span class="keywordtype">double</span>& delTActual,
<a name="l00096"></a>00096 <span class="keywordtype">double</span> minStep, <span class="keywordtype">double</span> maxStep,
<a name="l00097"></a>00097 <span class="keywordtype">double</span> maxError, <span class="keywordtype">double</span>& error);
<a name="l00099"></a>00099
<a name="l00100"></a>00100 <span class="keyword">protected</span>:
<a name="l00101"></a>00101 <a class="code" href="a01508.html" title="Integrate an initial value problem using 5th order Runge-Kutta method with adaptive...">vtkRungeKutta45</a>();
<a name="l00102"></a>00102 ~<a class="code" href="a01508.html" title="Integrate an initial value problem using 5th order Runge-Kutta method with adaptive...">vtkRungeKutta45</a>();
<a name="l00103"></a>00103
<a name="l00104"></a>00104 <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="a00896.html#2c253895c597dfe4f64ae58c267649a6">Initialize</a>();
<a name="l00105"></a>00105
<a name="l00106"></a>00106 <span class="comment">// Cash-Karp parameters</span>
<a name="l00107"></a><a class="code" href="a01508.html#0e84edc32cde913c01c247005668da6f">00107</a> <span class="keyword">static</span> <span class="keywordtype">double</span> A[5];
<a name="l00108"></a><a class="code" href="a01508.html#87a001cac8cf7275c13432ac84fc8688">00108</a> <span class="keyword">static</span> <span class="keywordtype">double</span> B[5][5];
<a name="l00109"></a><a class="code" href="a01508.html#bf0fa4c5aac134b4f4a8e1facc8be6b6">00109</a> <span class="keyword">static</span> <span class="keywordtype">double</span> C[6];
<a name="l00110"></a><a class="code" href="a01508.html#e129035438e146e61a3eb8459e3a8d02">00110</a> <span class="keyword">static</span> <span class="keywordtype">double</span> DC[6];
<a name="l00111"></a>00111
<a name="l00112"></a><a class="code" href="a01508.html#1d3251d6f2a41cda84a59847e30af535">00112</a> <span class="keywordtype">double</span>* NextDerivs[6];
<a name="l00113"></a>00113
<a name="l00114"></a>00114 <span class="keywordtype">int</span> ComputeAStep(<span class="keywordtype">double</span>* xprev, <span class="keywordtype">double</span>* dxprev, <span class="keywordtype">double</span>* xnext, <span class="keywordtype">double</span> t,
<a name="l00115"></a>00115 <span class="keywordtype">double</span>& delT, <span class="keywordtype">double</span>& error);
<a name="l00116"></a>00116
<a name="l00117"></a>00117 <span class="keyword">private</span>:
<a name="l00118"></a>00118 <a class="code" href="a01508.html" title="Integrate an initial value problem using 5th order Runge-Kutta method with adaptive...">vtkRungeKutta45</a>(<span class="keyword">const</span> <a class="code" href="a01508.html" title="Integrate an initial value problem using 5th order Runge-Kutta method with adaptive...">vtkRungeKutta45</a>&); <span class="comment">// Not implemented.</span>
<a name="l00119"></a>00119 <span class="keywordtype">void</span> operator=(<span class="keyword">const</span> <a class="code" href="a01508.html" title="Integrate an initial value problem using 5th order Runge-Kutta method with adaptive...">vtkRungeKutta45</a>&); <span class="comment">// Not implemented.</span>
<a name="l00120"></a>00120 };
<a name="l00121"></a>00121
<a name="l00122"></a>00122 <span class="preprocessor">#endif</span>
<a name="l00123"></a>00123 <span class="preprocessor"></span>
</pre></div></div>
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