trusty (3) plscompression.3plplot.gz

Provided by: plplot-doc_5.10.0-0ubuntu5_all bug

NAME
       plscompression - Set device-compression level


SYNOPSIS
       plscompression(compression)


DESCRIPTION
       Set  device-compression  level.  Only used for drivers that provide compression.  This function, if used,
       should be invoked before a call to plinit(3plplot).

       Redacted form: plscompression(compression)

       This function is used in example 31.


ARGUMENTS
       compression (PLINT, input)
              The desired compression level. This is a device-dependent value. Currently only the jpeg  and  png
              devices  use  these  values.  For  jpeg  value is the jpeg quality which should normally be in the
              range 0-95. Higher values denote higher quality and hence larger image sizes. For png  values  are
              in  the  range -1 to 99. Values of 0-9 are taken as the  compression level for zlib. A value of -1
              denotes the default zlib  compression level. Values in the range 10-99 are divided by 10 and  then
              used  as  the  zlib compression level. Higher compression levels correspond to greater compression
              and small file sizes at the expense of more computation.


AUTHORS
       Many developers (who are  credited  at  http://plplot.sourceforge.net/credits.php)  have  contributed  to
       PLplot over its long history.


SEE ALSO
       PLplot documentation at http://plplot.sourceforge.net/documentation.php.

                                                 February, 2014                          PLSCOMPRESSION(3plplot)