libtiff/html/man/TIFFtile.3t.html

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<title>TIFFTILE</title>
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<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>
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<a name="NAME"></a>
<h2>NAME</h2>
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TIFFTileSize, TIFFTileRowSize, TIFFVTileSize, TIFFDefaultTileSize, TIFFComputeTile, TIFFCheckTile, TIFFNumberOfTiles - tile-related utility routines</td></table>
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<a name="SYNOPSIS"></a>
<h2>SYNOPSIS</h2>
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<pre><b>#include &lt;tiffio.h&gt;
void TIFFDefaultTileSize(TIFF* tif, uint32* tw, uint32* th)
tsize_t TIFFTileSize(TIFF* tif)
tsize_t TIFFTileRowSize(TIFF* tif)
tsize_t TIFFVTileSize(TIFF* tif, uint32 nrows)
ttile_t TIFFComputeTile(TIFF* tif, uint32 x, uint32 y, uint32 z, tsample_t sample)
int TIFFCheckTile(TIFF* tif, uint32 x, uint32 y, uint32 z, tsample_t sample)
ttile_t TIFFNumberOfTiles(TIFF* tif)
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</b></pre></td></table>
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<a name="DESCRIPTION"></a>
<h2>DESCRIPTION</h2>
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<i>TIFFDefaultTileSize</i> returns the pixel width and
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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
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<small>TIFF</small> specification.</td></table>
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<i>TIFFTileSize</i> returns the equivalent size for a tile
of data as it would be returned in a call to
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<i>TIFFReadTile</i> or as it would be expected in a call to
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<i>TIFFWriteTile</i>.</td></table>
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<i>TIFFVTileSize</i> returns the number of bytes in a
row-aligned tile with <i>nrows</i> of data.</td></table>
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<i>TIFFTileRowSize</i> returns the number of bytes of a row
of data in a tile.</td></table>
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<i>TIFFComputeTile</i> returns the tile that contains the
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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>&gt;1). The <i>sample</i> parameter is
used only if data are organized in separate planes
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(<i>PlanarConfiguration</i>=2).</td></table>
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<i>TIFFCheckTile</i> returns a non-zero value if the
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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>
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parameter is checked against the value of the
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<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
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organized in separate planes.</td></table>
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cols="2" cellspacing="0" cellpadding="0">
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<i>TIFFNumberOfTiles</i> returns the number of tiles in the
image.</td></table>
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<a name="DIAGNOSTICS"></a>
<h2>DIAGNOSTICS</h2>
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None.</td></table>
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<a name="SEE ALSO"></a>
<h2>SEE ALSO</h2>
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<td width="10%"></td><td width="90%">
<i>libtiff</i>(3T), <i>TIFFReadEncodedTile</i>(3T),
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<i>TIFFReadRawTile</i>(3T), <i>TIFFReadTile</i>(3T),
<i>TIFFWriteEncodedTile</i>(3T),
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<i>TIFFWriteRawTile</i>(3T),
<i>TIFFWriteTile</i>(3T)</td></table>
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