plimagefr
( | idata, |
nx, | |
ny, | |
xmin, | |
xmax, | |
ymin, | |
ymax, | |
zmin, | |
zmax, | |
valuemin, | |
valuemax, | |
pltr, | |
pltr_data) ; |
Plot a 2D matrix using cmap1.
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
and
world coordinates. An input coordinate of
idata
(0, 0)
corresponds to the "top-left" corner of
while
idata
(nx, ny)
corresponds to the "bottom-right"
corner of
. Some
transformation functions are provided in the PLplot library:
idata
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”. 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
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.