/*****************************************************************************
*                                                                            *
*   SETHATCH.SPL Copyright (C) 1998 DSP Development Corporation              *
*                               All Rights Reserved                          *
*                                                                            *
*   Author:      Randy Race                                                  *
*                                                                            *
*   Synopsis:    Help for SETHATCH                                           *
*                                                                            *
*   Revisions:   26 May 1998  RRR  Creation                                  *
*                                                                            *
*****************************************************************************/


#if @HELP_SETHATCH

    SETHATCH

    Purpose: Turns 3D cross-hatching On or Off

    Syntax:  SETHATCH(win, mode)

              win  - optional window, defaults to current window
              mode - integer, 0:OFF, 1:ON

    Returns: Nothing

    Example:

             (x, y) = fxyvals(-2, 2, 0.1, -2, 2, 0.1);
             Cos(x*y);setplottype(4);hot();sethatch(0);

             Creates a shaded 3D plot of cos(x*y) without cross-hatching.

             (x, y) = fxyvals(-2, 2, 0.1, -2, 2, 0.1);
             W1: Cos(x*y);setplottype(4);hot();sethatch(0);
             W2: Deriv(w1)

             W1: Shadewith(w2);pon;

             Creates a shaded 3D plot of cos(x*y) without cross-hatching
             using the derivative of the surface as the lighting model.

    Remarks:
             Using SETHATCH(0) is useful for high density 3D plots.


    See Also
             Plot3d
             Setplottype
#endif