02-12-2015
I just wonder what you expected output is from echo $opt as opt is never set, only theopt.
hth
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LEARN ABOUT DEBIAN
plsurf3d
PLSURF3D(3plplot) PLplot API PLSURF3D(3plplot)
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-dimen-
sional 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 pllight-
source(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.
August, 2012 PLSURF3D(3plplot)