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<h1>dox/VolumeRendering/vtkRecursiveSphereDirectionEncoder.h</h1><a href="a03624.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: vtkRecursiveSphereDirectionEncoder.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="l00015"></a>00015
<a name="l00028"></a>00028 <span class="preprocessor">#ifndef __vtkRecursiveSphereDirectionEncoder_h</span>
<a name="l00029"></a>00029 <span class="preprocessor"></span><span class="preprocessor">#define __vtkRecursiveSphereDirectionEncoder_h</span>
<a name="l00030"></a>00030 <span class="preprocessor"></span>
<a name="l00031"></a>00031 <span class="preprocessor">#include "<a class="code" href="a03600.html">vtkDirectionEncoder.h</a>"</span>
<a name="l00032"></a>00032
<a name="l00033"></a><a class="code" href="a01474.html">00033</a> <span class="keyword">class </span><a class="code" href="a02170.html#4c512a1c00e5052ca1bbef09929dba95">VTK_VOLUMERENDERING_EXPORT</a> <a class="code" href="a01474.html" title="A direction encoder based on the recursive subdivision of an octahedron.">vtkRecursiveSphereDirectionEncoder</a> : <span class="keyword">public</span> <a class="code" href="a00423.html" title="encode a direction into a one or two byte value">vtkDirectionEncoder</a>
<a name="l00034"></a>00034 {
<a name="l00035"></a>00035 <span class="keyword">public</span>:
<a name="l00036"></a><a class="code" href="a01474.html#3e5833885e275da8b5e3eddeb3e9791f">00036</a> vtkTypeRevisionMacro(<a class="code" href="a01474.html" title="A direction encoder based on the recursive subdivision of an octahedron.">vtkRecursiveSphereDirectionEncoder</a>,<a class="code" href="a00423.html" title="encode a direction into a one or two byte value">vtkDirectionEncoder</a>);
<a name="l00037"></a>00037 <span class="keywordtype">void</span> <a class="code" href="a00423.html#666c07098efd4e7ac2ce8506ed23f284">PrintSelf</a>( ostream& os, <a class="code" href="a00869.html" title="a simple class to control print indentation">vtkIndent</a> indent );
<a name="l00038"></a>00038
<a name="l00041"></a>00041 <span class="keyword">static</span> <a class="code" href="a01474.html" title="A direction encoder based on the recursive subdivision of an octahedron.">vtkRecursiveSphereDirectionEncoder</a> *<a class="code" href="a01084.html#4d5b227267c076d6f9e38483370b6612">New</a>();
<a name="l00042"></a>00042
<a name="l00043"></a>00043
<a name="l00045"></a>00045 <span class="keywordtype">int</span> <a class="code" href="a00423.html#2f1df849b7d8982cb16770505757d543">GetEncodedDirection</a>( <span class="keywordtype">float</span> n[3] );
<a name="l00046"></a>00046
<a name="l00048"></a>00048 <span class="keywordtype">float</span> *<a class="code" href="a00423.html#f29912b41b911f31d95dd0e90ea644a3">GetDecodedGradient</a>( <span class="keywordtype">int</span> <a class="code" href="a03761.html#c6551f7bf833e8254b2b3ecdaea0d2106bf5e5151797630e91167caab3f22b9a">value</a> );
<a name="l00049"></a>00049
<a name="l00051"></a>00051 <span class="keywordtype">int</span> <a class="code" href="a00423.html#0c8572b7660aa30b335b3c1037ed7ba1">GetNumberOfEncodedDirections</a>( <span class="keywordtype">void</span> );
<a name="l00052"></a>00052
<a name="l00057"></a>00057 <span class="keywordtype">float</span> *<a class="code" href="a00423.html#ce27086397c0480da8a20f9e8d6a0e03">GetDecodedGradientTable</a>( <span class="keywordtype">void</span> );
<a name="l00058"></a>00058
<a name="l00060"></a>00060
<a name="l00072"></a>00072 vtkSetClampMacro( RecursionDepth, <span class="keywordtype">int</span>, 0, 6 );
<a name="l00073"></a>00073 vtkGetMacro( RecursionDepth, <span class="keywordtype">int</span> );
<a name="l00075"></a>00075
<a name="l00076"></a>00076 <span class="keyword">protected</span>:
<a name="l00077"></a>00077 <a class="code" href="a01474.html" title="A direction encoder based on the recursive subdivision of an octahedron.">vtkRecursiveSphereDirectionEncoder</a>();
<a name="l00078"></a>00078 ~<a class="code" href="a01474.html" title="A direction encoder based on the recursive subdivision of an octahedron.">vtkRecursiveSphereDirectionEncoder</a>();
<a name="l00079"></a>00079
<a name="l00080"></a>00080 <span class="comment">// How far to recursively divide the sphere</span>
<a name="l00081"></a><a class="code" href="a01474.html#d57ca6717896d78797fc835d0762bcb3">00081</a> <span class="keywordtype">int</span> RecursionDepth;
<a name="l00082"></a>00082
<a name="l00083"></a>00083 <span class="comment">// The index table which maps (x,y) position in the rotated grid</span>
<a name="l00084"></a>00084 <span class="comment">// to an encoded normal </span>
<a name="l00085"></a>00085 <span class="comment">//int IndexTable[2*NORM_SQR_SIZE - 1][2*NORM_SQR_SIZE -1];</span>
<a name="l00086"></a><a class="code" href="a01474.html#b5900cce48bb13a44201a9358c2fafa7">00086</a> <span class="keywordtype">int</span> *IndexTable;
<a name="l00087"></a>00087
<a name="l00088"></a>00088 <span class="comment">// This is a table that maps encoded normal (2 byte value) to a </span>
<a name="l00089"></a>00089 <span class="comment">// normal (dx, dy, dz)</span>
<a name="l00090"></a>00090 <span class="comment">//float DecodedNormal[3*(1 + 2*(NORM_SQR_SIZE*NORM_SQR_SIZE+</span>
<a name="l00091"></a>00091 <span class="comment">// (NORM_SQR_SIZE-1)*(NORM_SQR_SIZE-1)))];</span>
<a name="l00092"></a><a class="code" href="a01474.html#075aa7202850713e4d63e8e058d1935f">00092</a> <span class="keywordtype">float</span> *DecodedNormal;
<a name="l00093"></a>00093
<a name="l00094"></a>00094 <span class="comment">// Method to initialize the index table and variable that</span>
<a name="l00095"></a>00095 <span class="comment">// stored the recursion depth the last time the table was</span>
<a name="l00096"></a>00096 <span class="comment">// built</span>
<a name="l00097"></a>00097 <span class="keywordtype">void</span> InitializeIndexTable( <span class="keywordtype">void</span> );
<a name="l00098"></a><a class="code" href="a01474.html#ae461b446fdde2b905bd161fc7409b89">00098</a> <span class="keywordtype">int</span> IndexTableRecursionDepth;
<a name="l00099"></a>00099
<a name="l00100"></a><a class="code" href="a01474.html#67a7bff330b2eabdbe78827c56c3c56c">00100</a> <span class="keywordtype">int</span> OuterSize;
<a name="l00101"></a><a class="code" href="a01474.html#6655010f83f32077fe9f454b10c2da5c">00101</a> <span class="keywordtype">int</span> InnerSize;
<a name="l00102"></a><a class="code" href="a01474.html#a3600c55d8f83f916a467bf7ebdf75b2">00102</a> <span class="keywordtype">int</span> GridSize;
<a name="l00103"></a>00103 <span class="keyword">private</span>:
<a name="l00104"></a>00104 <a class="code" href="a01474.html" title="A direction encoder based on the recursive subdivision of an octahedron.">vtkRecursiveSphereDirectionEncoder</a>(<span class="keyword">const</span> <a class="code" href="a01474.html" title="A direction encoder based on the recursive subdivision of an octahedron.">vtkRecursiveSphereDirectionEncoder</a>&); <span class="comment">// Not implemented.</span>
<a name="l00105"></a>00105 <span class="keywordtype">void</span> operator=(<span class="keyword">const</span> <a class="code" href="a01474.html" title="A direction encoder based on the recursive subdivision of an octahedron.">vtkRecursiveSphereDirectionEncoder</a>&); <span class="comment">// Not implemented.</span>
<a name="l00106"></a>00106 };
<a name="l00107"></a>00107
<a name="l00108"></a>00108
<a name="l00109"></a>00109 <span class="preprocessor">#endif</span>
<a name="l00110"></a>00110 <span class="preprocessor"></span>
</pre></div></div>
<hr size="1"><address style="text-align: right;"><small>Generated on Wed Jun 3 18:35:51 2009 for VTK by
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