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TIFFReadRawTile.3tiff.html 3.3 KB

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  1. <!-- Creator : groff version 1.18.1 -->
  2. <!-- CreationDate: Sat Feb 24 18:37:17 2007 -->
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  7. <title>TIFFReadRawTile</title>
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  9. <body>
  10. <h1 align=center>TIFFReadRawTile</h1>
  11. <a href="#NAME">NAME</a><br>
  12. <a href="#SYNOPSIS">SYNOPSIS</a><br>
  13. <a href="#DESCRIPTION">DESCRIPTION</a><br>
  14. <a href="#RETURN VALUES">RETURN VALUES</a><br>
  15. <a href="#DIAGNOSTICS">DIAGNOSTICS</a><br>
  16. <a href="#SEE ALSO">SEE ALSO</a><br>
  17. <hr>
  18. <a name="NAME"></a>
  19. <h2>NAME</h2>
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  26. <p>TIFFReadRawTile &minus; return an undecoded tile of data
  27. from an open <small>TIFF</small> file</p>
  28. </td>
  29. </table>
  30. <a name="SYNOPSIS"></a>
  31. <h2>SYNOPSIS</h2>
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  38. <p><b>#include &lt;tiffio.h&gt;</b></p>
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  40. <p><b>tsize_t TIFFReadRawTile(TIFF *</b><i>tif</i><b>,
  41. ttile_t</b> <i>tile</i><b>, tdata_t</b> <i>buf</i><b>,
  42. tsize_t</b> <i>size</i><b>)</b></p>
  43. </td>
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  45. <a name="DESCRIPTION"></a>
  46. <h2>DESCRIPTION</h2>
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  53. <p>Read the contents of the specified tile into the (user
  54. supplied) data buffer. Note that the value of <i>tile</i> is
  55. a &lsquo;&lsquo;raw tile number.&rsquo;&rsquo; That is, the
  56. caller must take into account whether or not the data is
  57. organized in separate planes (<i>PlanarConfiguration</i>=2).
  58. <i>TIFFComputeTile</i> automatically does this when
  59. converting an (x,y,z,sample) coordinate quadruple to a tile
  60. number. To read a full tile of data the data buffer should
  61. typically be at least as large as the value returned by
  62. <i>TIFFTileSize</i>.</p>
  63. </td>
  64. </table>
  65. <a name="RETURN VALUES"></a>
  66. <h2>RETURN VALUES</h2>
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  73. <p>The actual number of bytes of data that were placed in
  74. <i>buf</i> is returned; <i>TIFFReadEncodedTile</i> returns
  75. &minus;1 if an error was encountered.</p>
  76. </td>
  77. </table>
  78. <a name="DIAGNOSTICS"></a>
  79. <h2>DIAGNOSTICS</h2>
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  86. <p>All error messages are directed to the
  87. <b>TIFFError</b>(3TIFF) routine.</p>
  88. </td>
  89. </table>
  90. <a name="SEE ALSO"></a>
  91. <h2>SEE ALSO</h2>
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  98. <p><b>TIFFOpen</b>(3TIFF),
  99. <b>TIFFReadEncodedTile</b>(3TIFF),
  100. <b>TIFFReadTile</b>(3TIFF), <b>TIFFTileSize</b>(3TIFF),
  101. <b>libtiff</b>(3TIFF)</p>
  102. <!-- INDENTATION -->
  103. <p>Libtiff library home page:
  104. <b>http://www.remotesensing.org/libtiff/</b></p>
  105. </td>
  106. </table>
  107. <hr>
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