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TIFFtile.3tiff.html
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TIFFtile.3tiff.html
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<!-- Creator : groff version 1.18.1 -->
<!-- CreationDate: Sat Feb 24 18:37:18 2007 -->
<html>
<head>
<meta name="generator" content="groff -Thtml, see www.gnu.org">
<meta name="Content-Style" content="text/css">
<title>TIFFTILE</title>
</head>
<body>
<h1 align=center>TIFFTILE</h1>
<a href="#NAME">NAME</a><br>
<a href="#SYNOPSIS">SYNOPSIS</a><br>
<a href="#DESCRIPTION">DESCRIPTION</a><br>
<a href="#DIAGNOSTICS">DIAGNOSTICS</a><br>
<a href="#SEE ALSO">SEE ALSO</a><br>
<hr>
<a name="NAME"></a>
<h2>NAME</h2>
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<td width="91%">
<p>TIFFTileSize, TIFFTileRowSize, TIFFVTileSize,
TIFFDefaultTileSize, TIFFComputeTile, TIFFCheckTile,
TIFFNumberOfTiles − tile-related utility routines</p>
</td>
</table>
<a name="SYNOPSIS"></a>
<h2>SYNOPSIS</h2>
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<p><b>#include <tiffio.h></b></p>
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<p><b>void TIFFDefaultTileSize(TIFF *</b><i>tif</i><b>,
uint32 *</b><i>tw</i><b>, uint32 *</b><i>th</i><b>)<br>
tsize_t TIFFTileSize(TIFF *</b><i>tif</i><b>)<br>
tsize_t TIFFTileRowSize(TIFF *</b><i>tif</i><b>)<br>
tsize_t TIFFVTileSize(TIFF *</b><i>tif</i><b>, uint32</b>
<i>nrows</i><b>)<br>
ttile_t TIFFComputeTile(TIFF *</b><i>tif</i><b>, uint32</b>
<i>x</i><b>, uint32</b> <i>y</i><b>, uint32</b> <i>z</i><b>,
tsample_t</b> <i>sample</i><b>)<br>
int TIFFCheckTile(TIFF *</b><i>tif</i><b>, uint32</b>
<i>x</i><b>, uint32</b> <i>y</i><b>, uint32</b> <i>z</i><b>,
tsample_t</b> <i>sample</i><b>)<br>
ttile_t TIFFNumberOfTiles(TIFF *</b><i>tif</i><b>)</b></p>
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<a name="DESCRIPTION"></a>
<h2>DESCRIPTION</h2>
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<p><i>TIFFDefaultTileSize</i> returns the pixel width and
height of a reasonable-sized tile; suitable for setting up
the <i>TileWidth</i> and <i>TileLength</i> tags. If the
<i>tw</i> and <i>th</i> values passed in are non-zero, then
they are adjusted to reflect any compression-specific
requirements. The returned width and height are constrained
to be a multiple of 16 pixels to conform with the
<small>TIFF</small> specification.</p>
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<p><i>TIFFTileSize</i> returns the equivalent size for a
tile of data as it would be returned in a call to
<i>TIFFReadTile</i> or as it would be expected in a call to
<i>TIFFWriteTile</i>.</p>
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<p><i>TIFFVTileSize</i> returns the number of bytes in a
row-aligned tile with <i>nrows</i> of data.</p>
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<p><i>TIFFTileRowSize</i> returns the number of bytes of a
row of data in a tile.</p>
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<p><i>TIFFComputeTile</i> returns the tile that contains the
specified coordinates. A valid tile is always returned;
out-of-range coordinate values are clamped to the bounds of
the image. The <i>x</i> and <i>y</i> parameters are always
used in calculating a tile. The <i>z</i> parameter is used
if the image is deeper than 1 slice
(<i>ImageDepth</i>>1). The <i>sample</i> parameter is
used only if data are organized in separate planes
(<i>PlanarConfiguration</i>=2).</p>
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<p><i>TIFFCheckTile</i> returns a non-zero value if the
supplied coordinates are within the bounds of the image and
zero otherwise. The <i>x</i> parameter is checked against
the value of the <i>ImageWidth</i> tag. The <i>y</i>
parameter is checked against the value of the
<i>ImageLength</i> tag. The <i>z</i> parameter is checked
against the value of the <i>ImageDepth</i> tag (if defined).
The <i>sample</i> parameter is checked against the value of
the <i>SamplesPerPixel</i> parameter if the data are
organized in separate planes.</p>
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<p><i>TIFFNumberOfTiles</i> returns the number of tiles in
the image.</p>
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<a name="DIAGNOSTICS"></a>
<h2>DIAGNOSTICS</h2>
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<p>None.</p>
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<a name="SEE ALSO"></a>
<h2>SEE ALSO</h2>
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<p><b>TIFFReadEncodedTile</b>(3TIFF),
<b>TIFFReadRawTile</b>(3TIFF), <b>TIFFReadTile</b>(3TIFF),
<b>TIFFWriteEncodedTile</b>(3TIFF),
<b>TIFFWriteRawTile</b>(3TIFF), <b>TIFFWriteTile</b>(3TIFF),
<b>libtiff</b>(3TIFF)</p>
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<p>Libtiff library home page:
<b>http://www.remotesensing.org/libtiff/</b></p>
</td>
</table>
<hr>
</body>
</html>