
plot3dcl: Magnitude colored plot surface with contour for z[x][y] with y index limits 

DESCRIPTION:

    This function is not used in any example. 

SYNOPSIS:

plot3dcl(x, y, z, nx, ny, opt, clevel, nlevel, indexxmin, indexxmax, indexymin, indexymax)

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 the function is
    evaluated. 

    ny (PLINT, input) :    Number of y values at which the 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. DRAW_LINEXY + MAG_COLOR opt=DRAW_LINEX: Lines are drawn
    showing z as a function of x for each value of y[j]. 
        opt=DRAW_LINEY: Lines are drawn showing z as a function of y
        for each value of x[i]. 
        opt=DRAW_LINEXY: Network of lines is drawn connecting points
        at which function is defined. 
        opt=MAG_COLOR: Each line in the mesh is colored according to
        the z value being plotted. The color is used from the current
        color map 1. 
        opt=BASE_CONT: A contour plot is drawn at the base XY plane
        using parameters 
    nlevel and 
    clevel. 
        opt=DRAW_SIDES: draws a curtain between the base XY plane and
        the borders of the plotted function. 


    clevel (const PLFLT *, input) :    Pointer to the array that defines
    the contour level spacing. 

    nlevel (PLINT, input) :    Number of elements in the clevel array. 

    indexxmin (PLINT, input) :      The index value (which must be ≥ 0) that
    corresponds to the first x index where z is defined. 

    indexxmax (PLINT, input) :      The index value (which must be ≤ nx)
    which corresponds (by convention) to one more than the last x
    index value where z is defined. 

    indexymin (const PLINT *, input) :      Array of y index values which
    all must be ≥ 0.  These values are the first y index where z is
    defined for a particular x index in the range from indexxmin to
    indexxmax - 1.    The dimension of indexymin is indexxmax. 

    indexymax (const PLINT *, input) :      Array of y index values which
    all must be ≤ ny.  These values correspond (by convention) to one
    more than the last y index where z is defined for a particular x
    index in the range from indexxmin to indexxmax - 1.  The dimension
    of indexymax is indexxmax. 
