plcon1
( | z, |
nx, | |
ny, | |
kx, | |
lx, | |
ky, | |
ly, | |
clevel, | |
nlevel, | |
xg, | |
yg) ; |
Draws a contour plot of the data in
,
using the z
[nx
][ny
]
contour
levels specified by nlevel
.
Only the region of the array from
clevel
to
kx
and from
lx
to
ky
is plotted out. The
arrays ly
and
xg
are used to specify the
transformation between array indices and world coordinates. See
the section called “Contour and Shade Plots” for more information.
yg
z
(PLFLT **
, input)
Pointer to a vectored two-dimensional array containing data to be contoured.
nx, ny
(PLINT
, input)
Physical dimensions of array
.
z
kx, lx
(PLINT
, input)
Range of x
indices to consider.
ky, ly
(PLINT
, input)
Range of y
indices to consider.
clevel
(PLFLT *
, input)
Pointer to array specifying levels at which to draw contours.
nlevel
(PLINT
, input)
Number of contour levels to draw.
xg, yg
(PLFLT *
, input)
Pointers to arrays which specify the transformation from array
indices to world coordinates. These must be one-dimensional
arrays, used for a transformation of the form:
tx
= f(x)
,
ty
= f(y)
. Function
values at locations between grid points are obtained via linear
interpolation.
NOTE: this function is intended for use from a Fortran 77 caller only.
The C user should instead call plcont
using the built-in
transformation function pltr1
for the same
capability.