NAME¶
plimagefr - Plot a 2D matrix using color map1
SYNOPSIS¶
plimagefr(
idata,
nx,
ny,
xmin,
xmax,
ymin,
ymax,
zmin,
zmax,
valuemin,
valuemax,
pltr,
pltr_data)
DESCRIPTION¶
Plot a 2D matrix using color map1.
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 (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)
- 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¶
Geoffrey Furnish and Maurice LeBrun wrote and maintain PLplot. This man page was
automatically generated from the DocBook source of the PLplot documentation,
maintained by Alan W. Irwin and Rafael Laboissiere.
SEE ALSO¶
PLplot documentation at
http://plplot.sourceforge.net/resources.