TIFFComputeTile(3T)      UNIX System V(June 18, 1991)       TIFFComputeTile(3T)


NAME
      TIFFComputeTile, TIFFCheckTile - tile-related utility routines

SYNOPSIS
      #include <tiffio.h>
      uint TIFFComputeTile(TIFF* tif, ulong x, ulong y, ulong z, uint
      sample)
      int TIFFCheckTile(TIFF* tif, ulong x, ulong y, ulong z, uint sample)

DESCRIPTION
      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 x and y parameters
      are always used in calculating a tile.  The z parameter is used if the
      image is deeper than 1 slice (ImageDepth>1).  The sample parameter is
      used only if data are organized in separate planes
      (PlanarConfiguration=2).

      TIFFCheckTile() returns a non-zero value if  the supplied coorindates are
      within the bounds of the image and zero otherwise.  The x parameter is
      checked against the value of the ImageWidth tag.  The y parameter is
      checked against the value of the ImageLength tag.  The z parameter is
      checked against the value of the ImageDepth tag (if defined).  The sample
      parameter is checked against the value of the SamplesPerPixel parameter
      if the data are organized in separate planes.

DIAGNOSTICS
      None.

SEE ALSO
      intro(3T), TIFFReadEncodedTile(3T), TIFFReadRawTile(3T),
      TIFFReadTile(3T), TIFFWriteEncodedile(3T), TIFFWriteRawTile(3T),
      TIFFWriteTile(3T)





















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