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<meta name="generator" content="groff -Thtml, see www.gnu.org">
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<meta name="Content-Style" content="text/css">
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<title>TIFFReadRawTile</title>
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TIFFReadRawTile
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NAME
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SYNOPSIS
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DESCRIPTION
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RETURN VALUES
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DIAGNOSTICS
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SEE ALSO
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NAME
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cols="2" cellspacing="0" cellpadding="0">
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TIFFReadRawTile − return an undecoded tile of data
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from an open <small>TIFF</small> file
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SYNOPSIS
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cols="2" cellspacing="0" cellpadding="0">
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#include <tiffio.h>
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tsize_t TIFFReadRawTile(TIFF *tif,
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ttile_t tile, tdata_t buf,
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tsize_t size)
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DESCRIPTION
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cols="2" cellspacing="0" cellpadding="0">
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Read the contents of the specified tile into the (user
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supplied) data buffer. Note that the value of tile is
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a ‘‘raw tile number.’’ That is, the
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caller must take into account whether or not the data is
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organized in separate planes (PlanarConfiguration=2).
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TIFFComputeTile automatically does this when
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converting an (x,y,z,sample) coordinate quadruple to a tile
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number. To read a full tile of data the data buffer should
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typically be at least as large as the value returned by
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TIFFTileSize.
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RETURN VALUES
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cols="2" cellspacing="0" cellpadding="0">
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The actual number of bytes of data that were placed in
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buf is returned; TIFFReadEncodedTile returns
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−1 if an error was encountered.
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DIAGNOSTICS
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cols="2" cellspacing="0" cellpadding="0">
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All error messages are directed to the
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TIFFError(3TIFF) routine.
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SEE ALSO
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cols="2" cellspacing="0" cellpadding="0">
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TIFFOpen(3TIFF),
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TIFFReadEncodedTile(3TIFF),
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TIFFReadTile(3TIFF), TIFFTileSize(3TIFF),
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libtiff(3TIFF)
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Libtiff library home page:
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http://www.remotesensing.org/libtiff/
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</body>
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</html>
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