plsurf3d
( | x, |
y, | |
z, | |
nx, | |
ny, | |
opt, | |
clevel, | |
nlevel) ; |
Plots a three dimensional shaded surface plot within the environment set up
by plw3d
. The surface is defined by the two-dimensional array
,
the point z
[nx
][ny
]
being the
value of the function at z
[i][j](
. Note that the points in
arrays x
[i],
y
[j])
and
x
do not need to be equally
spaced, but must be stored in ascending order.
For further details see the section called “Three Dimensional Surface Plots”.
y
x
(const PLFLT *
, input)
Pointer to set of x coordinate values at which the function is evaluated.
y
(const PLFLT *
, input)
Pointer to set of y coordinate values at which the function is evaluated.
z
(const PLFLT * const *
, input)
Pointer to a vectored two-dimensional array with set of function values.
nx
(PLINT
, input)
Number of
values at
which function is evaluated.
x
ny
(PLINT
, input)
Number of
values at
which function is evaluated.
y
opt
(PLINT
, input)
Determines the way in which the surface is represented. To specify more than one option just add the options, e.g. FACETED + SURF_CONT
: Network
of lines is drawn connecting points at which function is
defined.
opt
=FACETED
: A contour
plot is drawn at the base XY plane using parameters
opt
=BASE_CONTnlevel
and clevel
.
: A contour
plot is drawn at the surface plane using parameters
opt
=SURF_CONTnlevel
and clevel
.
: draws a curtain
between the base XY plane and the borders of the plotted function.
opt
=DRAW_SIDES
:
the surface is colored according to the value of Z; if
opt
=MAG_COLORMAG_COLOR
is not used, then the default
the surface is colored according to the intensity of the
reflected light in the surface from a light source whose
position is set using pllightsource
.
clevel
(const PLFLT *
, input)
Pointer to the array that defines the contour level spacing.
nlevel
(PLINT
, input)
Number of elements in the clevel
array.
Redacted form: plsurf3d(x, y, z, opt, clevel)
This function is not used in any examples.