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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.

                                          February, 2012                        PLSURF3D(3plplot)