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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-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 (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 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 (const PLFLT *, input)
Pointer to the array that defines the contour level spacing.
nlevel (PLINT, input)
Number of elements in the clevel array.

AUTHORS

Many developers (who are credited at http://plplot.sourceforge.net/credits.php) have contributed to PLplot over its long history.

SEE ALSO

PLplot documentation at http://plplot.sourceforge.net/documentation.php.
September, 2016