| 
	    plimagefr
	  ( | idata, | 
| nx, | |
| ny, | |
| xmin, | |
| xmax, | |
| ymin, | |
| ymax, | |
| zmin, | |
| zmax, | |
| valuemin, | |
| valuemax, | |
| pltr, | |
| pltr_data ); | 
Plot a 2D matrix using cmap1.
idata
	  (PLFLT_MATRIX
	    A matrix of values (intensities) to plot.  Should have
	    dimensions of nx by ny.
	  
nx, ny
	  (PLINTDimensions of idata
xmin, xmax, ymin, ymax
          (PLFLTSee the discussion of pltr
	  below for how these arguments are used (only for the special case when
	  the callback function pltr is not
	  supplied).
zmin, zmax
	  (PLFLTOnly data between zmin and zmax (inclusive) will be plotted.
valuemin, valuemax
	  (PLFLTThe 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 in the range (0.0-1.0).
pltr
          (PLTRANSFORM_callback A callback function that defines the transformation
	  between the zero-based indices of the matrix
	  idatapltr is not supplied (e.g., is set to NULL
	  in the C case), then the x indices of
	  idataxmin through xmax and
	  the y indices of idataymin through
	  ymax.
For the C case, transformation functions are provided
	  in the PLplot library: pltr0 for the identity mapping, and pltr1
	  and pltr2 for arbitrary mappings respectively defined by vectors and
	  matrices.  In addition, C callback routines for the transformation can
	  be supplied by the user such as the mypltr function
	  in examples/c/x09c.c which provides a general
	  linear transformation between index coordinates and world
	  coordinates.
For languages other than C you should consult Part III, “ Supported computer languages ” for the details concerning how
	  PLTRANSFORM_callback arguments are interfaced.
	  However, in general, a particular pattern of
	  callback-associated arguments such as a tr vector
	  with 6 elements; xg and yg
	  vectors; or xg and yg matrices
	  are respectively interfaced to a linear-transformation routine similar
	  to the above mypltr function; pltr1; and pltr2.
	  Furthermore, some of our more sophisticated bindings (see, e.g., Chapter 10, Fortran Language) support native language callbacks for handling
	  index to world-coordinate transformations.  Examples of these various
	  approaches are given in
	  examples/<language>x09*,
	  examples/<language>x16*,
	  examples/<language>x20*,
	  examples/<language>x21*, and
	  examples/<language>x22*, for all our
	  supported languages.
pltr_data
	  (PLPointer
	    Extra parameter to help
	    pass information to pltr0, pltr1, pltr2, or whatever routine
	    is externally supplied.
	  
Redacted form:
	    General:
	    
	      plimagefr(idata, xmin, xmax, ymin, ymax,
	      zmin, zmax, valuemin, valuemax, pltr, pltr_data)
	    
	  
This function is used in example 20.