src/tiff/man/TIFFtile.3tiff

.\" $Id: TIFFtile.3tiff,v 1.2 2005/11/02 11:07:19 dron Exp $
.\"
.\" Copyright (c) 1988-1997 Sam Leffler
.\" Copyright (c) 1991-1997 Silicon Graphics, Inc.
.\"
.\" Permission to use, copy, modify, distribute, and sell this software and
.\" its documentation for any purpose is hereby granted without fee, provided
.\" that (i) the above copyright notices and this permission notice appear in
.\" all copies of the software and related documentation, and (ii) the names of
.\" Sam Leffler and Silicon Graphics may not be used in any advertising or
.\" publicity relating to the software without the specific, prior written
.\" permission of Sam Leffler and Silicon Graphics.
.\"
.\" THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND,
.\" EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
.\" WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
.\"
.\" IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR
.\" ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND,
.\" OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
.\" WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF
.\" LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
.\" OF THIS SOFTWARE.
.\"
.if n .po 0
.TH TIFFTILE 3TIFF "February 14, 1992" "libtiff"
.SH NAME
TIFFTileSize, TIFFTileRowSize, TIFFVTileSize, TIFFDefaultTileSize,
TIFFComputeTile, TIFFCheckTile, TIFFNumberOfTiles \- tile-related utility
routines
.SH SYNOPSIS
.B "#include <tiffio.h>"
.sp
.BI "void TIFFDefaultTileSize(TIFF *" tif ", uint32 *" tw ", uint32 *" th ")"
.br
.BI "tsize_t TIFFTileSize(TIFF *" tif ")"
.br
.BI "tsize_t TIFFTileRowSize(TIFF *" tif ")"
.br
.BI "tsize_t TIFFVTileSize(TIFF *" tif ", uint32 " nrows ")"
.br
.BI "ttile_t TIFFComputeTile(TIFF *" tif ", uint32 " x ", uint32 " y ", uint32 " z ", tsample_t " sample ")"
.br
.BI "int TIFFCheckTile(TIFF *" tif ", uint32 " x ", uint32 " y ", uint32 " z ", tsample_t " sample ")"
.br
.BI "ttile_t TIFFNumberOfTiles(TIFF *" tif ")"
.br
.SH DESCRIPTION
.I TIFFDefaultTileSize
returns the pixel width and height of a reasonable-sized tile; suitable for
setting up the
.I TileWidth
and
.I TileLength
tags.
If the
.I tw
and
.I th
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
.SM TIFF
specification.
.PP
.I TIFFTileSize
returns the equivalent size for a tile of data as it would be returned in a
call to
.I TIFFReadTile
or as it would be expected in a call to
.IR TIFFWriteTile .
.PP
.I TIFFVTileSize
returns the number of bytes in a row-aligned tile with
.I nrows
of data.
.PP
.I TIFFTileRowSize
returns the number of bytes of a row of data in a tile.
.PP
.IR TIFFComputeTile
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
and
.I y
parameters are always used in calculating a tile. The
.I z
parameter is used if the image is deeper than 1 slice (\c
.IR ImageDepth >1).
The
.I sample
parameter is used only if data are organized in separate planes (\c
.IR PlanarConfiguration =2).
.PP
.IR TIFFCheckTile
returns a non-zero value if the supplied coordinates are within the bounds of
the image and zero otherwise. The
.I x
parameter is checked against the value of the
.I ImageWidth
tag. The
.I y
parameter is checked against the value of the
.I ImageLength
tag. The
.I z
parameter is checked against the value of the
.I ImageDepth
tag (if defined). The
.I sample
parameter is checked against the value of the
.I SamplesPerPixel
parameter if the data are organized in separate planes.
.PP
.IR TIFFNumberOfTiles
returns the number of tiles in the image.
.SH DIAGNOSTICS
None.
.SH "SEE ALSO"
.BR TIFFReadEncodedTile (3TIFF),
.BR TIFFReadRawTile (3TIFF),
.BR TIFFReadTile (3TIFF),
.BR TIFFWriteEncodedTile (3TIFF),
.BR TIFFWriteRawTile (3TIFF),
.BR TIFFWriteTile (3TIFF),
.BR libtiff (3TIFF)
.PP
Libtiff library home page:
.BR http://www.remotesensing.org/libtiff/
Commit	Line	Data
	1	.\" $Id: TIFFtile.3tiff,v 1.2 2005/11/02 11:07:19 dron Exp $
	2	.\"
	3	.\" Copyright (c) 1988-1997 Sam Leffler
	4	.\" Copyright (c) 1991-1997 Silicon Graphics, Inc.
	5	.\"
	6	.\" Permission to use, copy, modify, distribute, and sell this software and
	7	.\" its documentation for any purpose is hereby granted without fee, provided
	8	.\" that (i) the above copyright notices and this permission notice appear in
	9	.\" all copies of the software and related documentation, and (ii) the names of
	10	.\" Sam Leffler and Silicon Graphics may not be used in any advertising or
	11	.\" publicity relating to the software without the specific, prior written
	12	.\" permission of Sam Leffler and Silicon Graphics.
	13	.\"
	14	.\" THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND,
	15	.\" EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
	16	.\" WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
	17	.\"
	18	.\" IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR
	19	.\" ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND,
	20	.\" OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
	21	.\" WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF
	22	.\" LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
	23	.\" OF THIS SOFTWARE.
	24	.\"
	25	.if n .po 0
	26	.TH TIFFTILE 3TIFF "February 14, 1992" "libtiff"
	27	.SH NAME
	28	TIFFTileSize, TIFFTileRowSize, TIFFVTileSize, TIFFDefaultTileSize,
	29	TIFFComputeTile, TIFFCheckTile, TIFFNumberOfTiles \- tile-related utility
	30	routines
	31	.SH SYNOPSIS
	32	.B "#include <tiffio.h>"
	33	.sp
	34	.BI "void TIFFDefaultTileSize(TIFF " tif ", uint32 " tw ", uint32 *" th ")"
	35	.br
	36	.BI "tsize_t TIFFTileSize(TIFF *" tif ")"
	37	.br
	38	.BI "tsize_t TIFFTileRowSize(TIFF *" tif ")"
	39	.br
	40	.BI "tsize_t TIFFVTileSize(TIFF *" tif ", uint32 " nrows ")"
	41	.br
	42	.BI "ttile_t TIFFComputeTile(TIFF *" tif ", uint32 " x ", uint32 " y ", uint32 " z ", tsample_t " sample ")"
	43	.br
	44	.BI "int TIFFCheckTile(TIFF *" tif ", uint32 " x ", uint32 " y ", uint32 " z ", tsample_t " sample ")"
	45	.br
	46	.BI "ttile_t TIFFNumberOfTiles(TIFF *" tif ")"
	47	.br
	48	.SH DESCRIPTION
	49	.I TIFFDefaultTileSize
	50	returns the pixel width and height of a reasonable-sized tile; suitable for
	51	setting up the
	52	.I TileWidth
	53	and
	54	.I TileLength
	55	tags.
	56	If the
	57	.I tw
	58	and
	59	.I th
	60	values passed in are non-zero, then they are adjusted to reflect any
	61	compression-specific requirements. The returned width and height are
	62	constrained to be a multiple of 16 pixels to conform with the
	63	.SM TIFF
	64	specification.
	65	.PP
	66	.I TIFFTileSize
	67	returns the equivalent size for a tile of data as it would be returned in a
	68	call to
	69	.I TIFFReadTile
	70	or as it would be expected in a call to
	71	.IR TIFFWriteTile .
	72	.PP
	73	.I TIFFVTileSize
	74	returns the number of bytes in a row-aligned tile with
	75	.I nrows
	76	of data.
	77	.PP
	78	.I TIFFTileRowSize
	79	returns the number of bytes of a row of data in a tile.
	80	.PP
	81	.IR TIFFComputeTile
	82	returns the tile that contains the specified coordinates. A valid tile is
	83	always returned; out-of-range coordinate values are clamped to the bounds of
	84	the image. The
	85	.I x
	86	and
	87	.I y
	88	parameters are always used in calculating a tile. The
	89	.I z
	90	parameter is used if the image is deeper than 1 slice (\c
	91	.IR ImageDepth >1).
	92	The
	93	.I sample
	94	parameter is used only if data are organized in separate planes (\c
	95	.IR PlanarConfiguration =2).
	96	.PP
	97	.IR TIFFCheckTile
	98	returns a non-zero value if the supplied coordinates are within the bounds of
	99	the image and zero otherwise. The
	100	.I x
	101	parameter is checked against the value of the
	102	.I ImageWidth
	103	tag. The
	104	.I y
	105	parameter is checked against the value of the
	106	.I ImageLength
	107	tag. The
	108	.I z
	109	parameter is checked against the value of the
	110	.I ImageDepth
	111	tag (if defined). The
	112	.I sample
	113	parameter is checked against the value of the
	114	.I SamplesPerPixel
	115	parameter if the data are organized in separate planes.
	116	.PP
	117	.IR TIFFNumberOfTiles
	118	returns the number of tiles in the image.
	119	.SH DIAGNOSTICS
	120	None.
	121	.SH "SEE ALSO"
	122	.BR TIFFReadEncodedTile (3TIFF),
	123	.BR TIFFReadRawTile (3TIFF),
	124	.BR TIFFReadTile (3TIFF),
	125	.BR TIFFWriteEncodedTile (3TIFF),
	126	.BR TIFFWriteRawTile (3TIFF),
	127	.BR TIFFWriteTile (3TIFF),
	128	.BR libtiff (3TIFF)
	129	.PP
	130	Libtiff library home page:
	131	.BR http://www.remotesensing.org/libtiff/