idata
(PLFLT**, 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)
Plot coordinates to strecth the image data to. 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 transformation between indices
in array idata and the
world coordinates (C only). Transformation functions are
provided in the PLplot library:
pltr0 for identity mapping, and pltr1 and pltr2 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 Section called Contour Plots from C in Chapter 3.
The transformation function should
have the form given by any of pltr0, pltr1, or pltr2.
pltr_data
(PLPointer, input)
Extra parameter to help
pass information to pltr0, pltr1, pltr2, or whatever routine
that is externally supplied.
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