CURVE3 - Draws the projection of a curve defined by a sequence of points in 3-space.

       To  use CURVE3 or c_curve3, load the NCAR Graphics libraries ncarg, ncarg_gks, and ncarg_c, preferably in
       that order.

       The C-binding argument descriptions are the same as the FORTRAN argument descriptions.

       #include <ncarg/ncargC.h>

       void c_curve3 (float *u, float *v, float *w, int n)

       Copyright (C) 1987-2009
       University Corporation for Atmospheric Research
       The use of this Software is governed by a License Agreement.

UNIX                                               March 1993                                     CURVE3(3NCARG)

       U,V,W       (input  arrays,  dimensioned  at  least N, of type REAL) contain the U, V, and W coordinates,
                   respectively, of the points defining the curve whose projection is to be drawn.

       N           (an input expression of type INTEGER) is the number of points defining the curve.

       Curves drawn by CURVE3 are drawn in the current polyline color, as determined by the last call to the GKS
       routine GSPLCI; by default, color index 1 is used.  Line width is determined by the last call to the  GKS
       routine GSLWSC; by default, the line width scale factor is 1.

       Use the ncargex command to see the following relevant examples: tthree, fthex03.

       CURVE3 - Draws the projection of a curve defined by a sequence of points in 3-space.

       Online: threed, fence3, frst3, line3, perim3, point3, psym3, pwrz, pwrzt, set3,  threed,  tick3,  tick43,
       vect3, ncarg_cbind.

       Hardcopy: NCAR Graphics Fundamentals, UNIX Version

       CALL CURVE3 (U,V,W,N)