trusty (3) plimagefr.3plplot.gz

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NAME

       plimagefr - Plot a 2D matrix using cmap1

SYNOPSIS

       plimagefr(idata, nx, ny, xmin, xmax, ymin, ymax, zmin, zmax, valuemin, valuemax, pltr, pltr_data)

DESCRIPTION

       Plot a 2D matrix using cmap1.

       Redacted  form:   General: plimagefr(idata, xmin, xmax, ymin, ymax, zmin, zmax, valuemin, valuemax, pltr,
       pltr_data)

       This function is used in example 20.

ARGUMENTS

       idata (const PLFLT * const *, input)
              A 2D array of values (intensities) to plot.  Should have dimensions idata[nx][ny].

       nx, ny (PLINT, input)
              Dimensions of idata

       xmin, xmax, ymin, ymax (PLFLT, input)
              Stretch image data to these  Plot  coordinates.   idata[0][0]  corresponds  to  (xmin,  ymin)  and
              idata[nx - 1][ny - 1] corresponds to (xmax, ymax).

       zmin, zmax (PLFLT, input)
              Only data between zmin and zmax (inclusive) will be plotted.

       valuemin, valuemax (PLFLT, input)
              The  minimum and maximum data values to use for value to color mappings.  A datum equal to or less
              than valuemin will be plotted with color 0.0, while a datum equal to or greater than valuemax will
              be  plotted with color 1.0.  Data between valuemin and valuemax map linearly to colors between 0.0
              and 1.0.

       pltr (void (*) (PLFLT, PLFLT, PLFLT *, PLFLT *, PLPointer) , input)
              Pointer to function that defines a transformation between the data in the array  idata  and  world
              coordinates.   An  input  coordinate of (0, 0) corresponds to the "top-left" corner of idata while
              (nx, ny) corresponds to the "bottom-right" corner of idata.   Some  transformation  functions  are
              provided  in  the  PLplot  library:  pltr0(3plplot)  for  identity mapping, and pltr1(3plplot) and
              pltr2(3plplot) for arbitrary mappings respectively defined by one- and two-dimensional arrays.  In
              addition,  user-supplied  routines for the transformation can be used as well.  Examples of all of
              these approaches are given in the PLplot documentation.  The transformation function  should  have
              the form given by any of pltr0(3plplot), pltr1(3plplot), or pltr2(3plplot).

       pltr_data (PLPointer, input)
              Extra  parameter  to  help  pass information to pltr0(3plplot), pltr1(3plplot), pltr2(3plplot), or
              whatever routine is externally supplied.

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                               PLIMAGEFR(3plplot)