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<h1>vtkDataCompressor Class Reference</h1><!-- doxytag: class="vtkDataCompressor" --><!-- doxytag: inherits="vtkObject" --><code>#include <<a class="el" href="a04897.html">vtkDataCompressor.h</a>></code>
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Inheritance diagram for vtkDataCompressor:</div>
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<area shape="rect" href="a01964.html" title="Data compression using zlib." alt="" coords="6,229,174,256"><area shape="rect" href="a01084.html" title="abstract base class for most VTK objects" alt="" coords="50,80,130,107"><area shape="rect" href="a01085.html" title="abstract base class for most VTK objects" alt="" coords="35,5,144,32"></map>
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Collaboration diagram for vtkDataCompressor:</div>
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<p><center><img src="a08997.png" border="0" usemap="#a08998" alt="Collaboration graph"></center>
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<area shape="rect" href="a01084.html" title="abstract base class for most VTK objects" alt="" coords="87,96,167,123"><area shape="rect" href="a01085.html" title="abstract base class for most VTK objects" alt="" coords="5,5,115,32"><area shape="rect" href="a01719.html" title="record modification and/or execution time" alt="" coords="139,5,248,32"></map>
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<a href="a08999.html">List of all members.</a><hr><a name="_details"></a><h2>Detailed Description</h2>
Abstract interface for data compression classes.
<p>
<a class="el" href="a00361.html" title="Abstract interface for data compression classes.">vtkDataCompressor</a> provides a universal interface for data compression. Subclasses provide one compression method and one decompression method. The public interface to all compressors remains the same, and is defined by this class.
<p>Definition at line <a class="el" href="a04897.html#l00031">31</a> of file <a class="el" href="a04897.html">vtkDataCompressor.h</a>.</p>
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<tr><td colspan="2"><br><h2>Public Types</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">typedef <a class="el" href="a01084.html">vtkObject</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="a00361.html#ba65ea7adf1fd908798a73c56fcd97a7">Superclass</a></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 char * </td><td class="memItemRight" valign="bottom"><a class="el" href="a00361.html#7da8b1a497e570e296b0a4e248825c3b">GetClassName</a> ()</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual int </td><td class="memItemRight" valign="bottom"><a class="el" href="a00361.html#e2157b41a5f9f315f409ce0a633d6598">IsA</a> (const char *type)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="a00361.html#72f3e4df21d683e49180bde3abcadebc">PrintSelf</a> (ostream &os, <a class="el" href="a00869.html">vtkIndent</a> indent)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual unsigned long </td><td class="memItemRight" valign="bottom"><a class="el" href="a00361.html#b73f81790a977ed7e52c699cf98558da">GetMaximumCompressionSpace</a> (unsigned long size)=0</td></tr>
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<tr><td class="memItemLeft" nowrap align="right" valign="top">unsigned long </td><td class="memItemRight" valign="bottom"><a class="el" href="a00361.html#d61df69e4b832c4f2e5d5f2ee0126201">Compress</a> (const unsigned char *uncompressedData, unsigned long uncompressedSize, unsigned char *compressedData, unsigned long compressionSpace)</td></tr>
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<tr><td class="memItemLeft" nowrap align="right" valign="top">unsigned long </td><td class="memItemRight" valign="bottom"><a class="el" href="a00361.html#f474691af4cd519f2bd70d43ea5327ba">Uncompress</a> (const unsigned char *compressedData, unsigned long compressedSize, unsigned char *uncompressedData, unsigned long uncompressedSize)</td></tr>
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<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="el" href="a01784.html">vtkUnsignedCharArray</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="a00361.html#8aa512c30c9bf6ecec2afc81adf5eb4e">Compress</a> (const unsigned char *uncompressedData, unsigned long uncompressedSize)</td></tr>
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<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="el" href="a01784.html">vtkUnsignedCharArray</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="a00361.html#986b87a7229a0ddb9ef13384ebf2f02d">Uncompress</a> (const unsigned char *compressedData, unsigned long compressedSize, unsigned long uncompressedSize)</td></tr>
<tr><td colspan="2"><br><h2>Static Public Member Functions</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">static int </td><td class="memItemRight" valign="bottom"><a class="el" href="a00361.html#44ac03cbdda6fb06837a34634f5083a1">IsTypeOf</a> (const char *type)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">static <a class="el" href="a00361.html">vtkDataCompressor</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="a00361.html#44da69410d05aadd71c6c142de8c5e9e">SafeDownCast</a> (<a class="el" href="a01084.html">vtkObject</a> *o)</td></tr>
<tr><td colspan="2"><br><h2>Protected Member Functions</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="a00361.html#776f921d4ebfc4c485b4e54243a35557">vtkDataCompressor</a> ()</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="a00361.html#1539b5dccffe7b658505d95210d75015">~vtkDataCompressor</a> ()</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual unsigned long </td><td class="memItemRight" valign="bottom"><a class="el" href="a00361.html#decd98800bb128aceafc29388d4d0a46">CompressBuffer</a> (const unsigned char *uncompressedData, unsigned long uncompressedSize, unsigned char *compressedData, unsigned long compressionSpace)=0</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual unsigned long </td><td class="memItemRight" valign="bottom"><a class="el" href="a00361.html#fe58cd212ba009219199f9100e79ba54">UncompressBuffer</a> (const unsigned char *compressedData, unsigned long compressedSize, unsigned char *uncompressedData, unsigned long uncompressedSize)=0</td></tr>
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<hr><h2>Member Typedef Documentation</h2>
<a class="anchor" name="ba65ea7adf1fd908798a73c56fcd97a7"></a><!-- doxytag: member="vtkDataCompressor::Superclass" ref="ba65ea7adf1fd908798a73c56fcd97a7" args="" -->
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<td class="memname">typedef <a class="el" href="a01084.html">vtkObject</a> <a class="el" href="a01084.html">vtkDataCompressor::Superclass</a> </td>
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<p>Reimplemented from <a class="el" href="a01084.html#11429dee69f4b562e03e07b453dae9b5">vtkObject</a>.</p>
<p>Reimplemented in <a class="el" href="a01964.html#bfa78c9ab503f0f432c58fb07e182145">vtkZLibDataCompressor</a>.</p>
<p>Definition at line <a class="el" href="a04897.html#l00034">34</a> of file <a class="el" href="a04897.html">vtkDataCompressor.h</a>.</p>
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<hr><h2>Constructor & Destructor Documentation</h2>
<a class="anchor" name="776f921d4ebfc4c485b4e54243a35557"></a><!-- doxytag: member="vtkDataCompressor::vtkDataCompressor" ref="776f921d4ebfc4c485b4e54243a35557" args="()" -->
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<td class="memname">vtkDataCompressor::vtkDataCompressor </td>
<td>(</td>
<td class="paramname"> </td>
<td> ) </td>
<td><code> [protected]</code></td>
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<a class="anchor" name="1539b5dccffe7b658505d95210d75015"></a><!-- doxytag: member="vtkDataCompressor::~vtkDataCompressor" ref="1539b5dccffe7b658505d95210d75015" args="()" -->
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<td class="memname">vtkDataCompressor::~vtkDataCompressor </td>
<td>(</td>
<td class="paramname"> </td>
<td> ) </td>
<td><code> [protected]</code></td>
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<hr><h2>Member Function Documentation</h2>
<a class="anchor" name="7da8b1a497e570e296b0a4e248825c3b"></a><!-- doxytag: member="vtkDataCompressor::GetClassName" ref="7da8b1a497e570e296b0a4e248825c3b" args="()" -->
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<td class="memname">virtual const char* vtkDataCompressor::GetClassName </td>
<td>(</td>
<td class="paramname"> </td>
<td> ) </td>
<td><code> [virtual]</code></td>
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<p>Reimplemented from <a class="el" href="a01084.html#d95975c85c2896ea32ff4cf1f8de0886">vtkObject</a>.</p>
<p>Reimplemented in <a class="el" href="a01964.html#8a9dc34d198a546095b4c146e0ce9e74">vtkZLibDataCompressor</a>.</p>
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<a class="anchor" name="44ac03cbdda6fb06837a34634f5083a1"></a><!-- doxytag: member="vtkDataCompressor::IsTypeOf" ref="44ac03cbdda6fb06837a34634f5083a1" args="(const char *type)" -->
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<td class="memname">static int vtkDataCompressor::IsTypeOf </td>
<td>(</td>
<td class="paramtype">const char * </td>
<td class="paramname"> <em>name</em> </td>
<td> ) </td>
<td><code> [static]</code></td>
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Return 1 if this class type is the same type of (or a subclass of) the named class. Returns 0 otherwise. This method works in combination with vtkTypeRevisionMacro found in vtkSetGet.h.
<p>Reimplemented from <a class="el" href="a01084.html#e9548a248bce0f02f73bbcccd0a9489e">vtkObject</a>.</p>
<p>Reimplemented in <a class="el" href="a01964.html#5feb2ec989c559b72fa47f0bb096ef6f">vtkZLibDataCompressor</a>.</p>
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<a class="anchor" name="e2157b41a5f9f315f409ce0a633d6598"></a><!-- doxytag: member="vtkDataCompressor::IsA" ref="e2157b41a5f9f315f409ce0a633d6598" args="(const char *type)" -->
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<td class="memname">virtual int vtkDataCompressor::IsA </td>
<td>(</td>
<td class="paramtype">const char * </td>
<td class="paramname"> <em>name</em> </td>
<td> ) </td>
<td><code> [virtual]</code></td>
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Return 1 if this class is the same type of (or a subclass of) the named class. Returns 0 otherwise. This method works in combination with vtkTypeRevisionMacro found in vtkSetGet.h.
<p>Reimplemented from <a class="el" href="a01084.html#831e57b04e46827a7098aa81abadee69">vtkObject</a>.</p>
<p>Reimplemented in <a class="el" href="a01964.html#60dbfcf86df3f8416a571caa4859768a">vtkZLibDataCompressor</a>.</p>
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<a class="anchor" name="44da69410d05aadd71c6c142de8c5e9e"></a><!-- doxytag: member="vtkDataCompressor::SafeDownCast" ref="44da69410d05aadd71c6c142de8c5e9e" args="(vtkObject *o)" -->
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<td class="memname">static <a class="el" href="a00361.html">vtkDataCompressor</a>* vtkDataCompressor::SafeDownCast </td>
<td>(</td>
<td class="paramtype"><a class="el" href="a01084.html">vtkObject</a> * </td>
<td class="paramname"> <em>o</em> </td>
<td> ) </td>
<td><code> [static]</code></td>
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<p>Reimplemented from <a class="el" href="a01084.html#bb9351f076544c427ee91229dce83abe">vtkObject</a>.</p>
<p>Reimplemented in <a class="el" href="a01964.html#cfb3950ea355d22b7c726e45c2b3e7fe">vtkZLibDataCompressor</a>.</p>
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<a class="anchor" name="72f3e4df21d683e49180bde3abcadebc"></a><!-- doxytag: member="vtkDataCompressor::PrintSelf" ref="72f3e4df21d683e49180bde3abcadebc" args="(ostream &os, vtkIndent indent)" -->
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<td class="memname">void vtkDataCompressor::PrintSelf </td>
<td>(</td>
<td class="paramtype">ostream & </td>
<td class="paramname"> <em>os</em>, </td>
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<td class="paramkey"></td>
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<td class="paramtype"><a class="el" href="a00869.html">vtkIndent</a> </td>
<td class="paramname"> <em>indent</em></td><td> </td>
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<td>)</td>
<td></td><td></td><td><code> [virtual]</code></td>
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Methods invoked by print to print information about the object including superclasses. Typically not called by the user (use <a class="el" href="a01085.html#edadf6378465fd81c2592ef64262e2a5">Print()</a> instead) but used in the hierarchical print process to combine the output of several classes.
<p>Reimplemented from <a class="el" href="a01084.html#bf3dbb4154289b56a12483eee3866263">vtkObject</a>.</p>
<p>Reimplemented in <a class="el" href="a01964.html#4fbb3899b41f07f82983d3e3a4ceeab8">vtkZLibDataCompressor</a>.</p>
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<a class="anchor" name="b73f81790a977ed7e52c699cf98558da"></a><!-- doxytag: member="vtkDataCompressor::GetMaximumCompressionSpace" ref="b73f81790a977ed7e52c699cf98558da" args="(unsigned long size)=0" -->
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<td class="memname">virtual unsigned long vtkDataCompressor::GetMaximumCompressionSpace </td>
<td>(</td>
<td class="paramtype">unsigned long </td>
<td class="paramname"> <em>size</em> </td>
<td> ) </td>
<td><code> [pure virtual]</code></td>
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Get the maximum space that may be needed to store data of the given uncompressed size after compression. This is the minimum size of the output buffer that can be passed to the four-argument Compress method.
<p>Implemented in <a class="el" href="a01964.html#b86e193365cca4d0d1b5c65e66662c29">vtkZLibDataCompressor</a>.</p>
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<a class="anchor" name="d61df69e4b832c4f2e5d5f2ee0126201"></a><!-- doxytag: member="vtkDataCompressor::Compress" ref="d61df69e4b832c4f2e5d5f2ee0126201" args="(const unsigned char *uncompressedData, unsigned long uncompressedSize, unsigned char *compressedData, unsigned long compressionSpace)" -->
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<td class="memname">unsigned long vtkDataCompressor::Compress </td>
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<td class="paramtype">const unsigned char * </td>
<td class="paramname"> <em>uncompressedData</em>, </td>
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<td class="paramtype">unsigned long </td>
<td class="paramname"> <em>uncompressedSize</em>, </td>
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<td class="paramtype">unsigned char * </td>
<td class="paramname"> <em>compressedData</em>, </td>
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<td class="paramtype">unsigned long </td>
<td class="paramname"> <em>compressionSpace</em></td><td> </td>
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Compress the given input data buffer into the given output buffer. The size of the output buffer must be at least as large as the value given by GetMaximumCompressionSpace for the given input size.
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<a class="anchor" name="f474691af4cd519f2bd70d43ea5327ba"></a><!-- doxytag: member="vtkDataCompressor::Uncompress" ref="f474691af4cd519f2bd70d43ea5327ba" args="(const unsigned char *compressedData, unsigned long compressedSize, unsigned char *uncompressedData, unsigned long uncompressedSize)" -->
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<td class="memname">unsigned long vtkDataCompressor::Uncompress </td>
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<td class="paramtype">const unsigned char * </td>
<td class="paramname"> <em>compressedData</em>, </td>
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<td class="paramtype">unsigned long </td>
<td class="paramname"> <em>compressedSize</em>, </td>
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<td class="paramname"> <em>uncompressedSize</em></td><td> </td>
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Uncompress the given input data into the given output buffer. The size of the uncompressed data must be known by the caller. It should be transmitted from the compressor by a means outside of this class.
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<a class="anchor" name="8aa512c30c9bf6ecec2afc81adf5eb4e"></a><!-- doxytag: member="vtkDataCompressor::Compress" ref="8aa512c30c9bf6ecec2afc81adf5eb4e" args="(const unsigned char *uncompressedData, unsigned long uncompressedSize)" -->
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<td class="memname"><a class="el" href="a01784.html">vtkUnsignedCharArray</a>* vtkDataCompressor::Compress </td>
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Compress the given data. A <a class="el" href="a01784.html" title="dynamic, self-adjusting array of unsigned char">vtkUnsignedCharArray</a> containing the compressed data is returned with a reference count of 1.
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<a class="anchor" name="986b87a7229a0ddb9ef13384ebf2f02d"></a><!-- doxytag: member="vtkDataCompressor::Uncompress" ref="986b87a7229a0ddb9ef13384ebf2f02d" args="(const unsigned char *compressedData, unsigned long compressedSize, unsigned long uncompressedSize)" -->
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<td class="memname"><a class="el" href="a01784.html">vtkUnsignedCharArray</a>* vtkDataCompressor::Uncompress </td>
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<td class="paramname"> <em>compressedSize</em>, </td>
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<td class="paramname"> <em>uncompressedSize</em></td><td> </td>
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Uncompress the given data. A <a class="el" href="a01784.html" title="dynamic, self-adjusting array of unsigned char">vtkUnsignedCharArray</a> containing the compressed data is returned with a reference count of 1. The size of the uncompressed data must be known by the caller. It should be transmitted from the compressor by a means outside of this class.
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<a class="anchor" name="decd98800bb128aceafc29388d4d0a46"></a><!-- doxytag: member="vtkDataCompressor::CompressBuffer" ref="decd98800bb128aceafc29388d4d0a46" args="(const unsigned char *uncompressedData, unsigned long uncompressedSize, unsigned char *compressedData, unsigned long compressionSpace)=0" -->
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<td class="memname">virtual unsigned long vtkDataCompressor::CompressBuffer </td>
<td>(</td>
<td class="paramtype">const unsigned char * </td>
<td class="paramname"> <em>uncompressedData</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">unsigned long </td>
<td class="paramname"> <em>uncompressedSize</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">unsigned char * </td>
<td class="paramname"> <em>compressedData</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">unsigned long </td>
<td class="paramname"> <em>compressionSpace</em></td><td> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td><td><code> [protected, pure virtual]</code></td>
</tr>
</table>
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<p>
<p>Implemented in <a class="el" href="a01964.html#265c0e23c799f35b49e1b3244e5320d7">vtkZLibDataCompressor</a>.</p>
</div>
</div><p>
<a class="anchor" name="fe58cd212ba009219199f9100e79ba54"></a><!-- doxytag: member="vtkDataCompressor::UncompressBuffer" ref="fe58cd212ba009219199f9100e79ba54" args="(const unsigned char *compressedData, unsigned long compressedSize, unsigned char *uncompressedData, unsigned long uncompressedSize)=0" -->
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<td class="memname">virtual unsigned long vtkDataCompressor::UncompressBuffer </td>
<td>(</td>
<td class="paramtype">const unsigned char * </td>
<td class="paramname"> <em>compressedData</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">unsigned long </td>
<td class="paramname"> <em>compressedSize</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">unsigned char * </td>
<td class="paramname"> <em>uncompressedData</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">unsigned long </td>
<td class="paramname"> <em>uncompressedSize</em></td><td> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td><td><code> [protected, pure virtual]</code></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>
<p>Implemented in <a class="el" href="a01964.html#4354c0770f888e4c8f4d0937b3f32ae9">vtkZLibDataCompressor</a>.</p>
</div>
</div><p>
<hr>The documentation for this class was generated from the following file:<ul>
<li>dox/IO/<a class="el" href="a04897.html">vtkDataCompressor.h</a></ul>
</div>
<hr size="1"><address style="text-align: right;"><small>Generated on Wed Jun 3 18:59:01 2009 for VTK by
<a href="http://www.doxygen.org/index.html">
<img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.5.6 </small></address>
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