NAME¶
plsurf3d - Plot shaded 3-d surface plot
SYNOPSIS¶
plsurf3d(
x,
y,
z,
nx,
ny,
opt,
clevel,
nlevel)
DESCRIPTION¶
Plots a three dimensional shaded surface plot within the environment set up by
plw3d(3plplot). The surface is defined by the two-dimensional array
z[
nx][
ny], the point
z[i][j] being the value of
the function at (
x[i],
y[j]). Note that the points in arrays
x and
y do not need to be equally spaced, but must be stored in
ascending order. For further details see the PLplot documentation.
Redacted form:
plsurf3d(x, y, z, opt, clevel)
This function is not used in any examples.
ARGUMENTS¶
- x (PLFLT *, input)
- Pointer to set of x coordinate values at which the function
is evaluated.
- y (PLFLT *, input)
- Pointer to set of y coordinate values at which the function
is evaluated.
- z (PLFLT **, input)
- Pointer to a vectored two-dimensional array with set of
function values.
- nx (PLINT, input)
- Number of x values at which function is
evaluated.
- ny (PLINT, input)
- Number of y values at which function is
evaluated.
- 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 opt=FACETED: Network of lines is drawn connecting points
at which function is defined. opt=BASE_CONT: A contour plot is
drawn at the base XY plane using parameters nlevel and
clevel. opt=SURF_CONT: A contour plot is drawn at the
surface plane using parameters nlevel and clevel.
opt=DRAW_SIDES: draws a curtain between the base XY plane and the
borders of the plotted function. opt=MAG_COLOR: the surface is
colored according to the value of Z; if MAG_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(3plplot).
- clevel (PLFLT *, input)
- Pointer to the array that defines the contour level
spacing.
- nlevel (PLINT, input)
- Number of elements in the clevel array.
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.