NAME

       SETR - Establishes certain constants so that SRFACE produces a picture whose size changes
       with respect to the viewer's distance from the object.  It can also be used when making a
       movie of an object evolving in time to keep it positioned properly on the screen, saving
       computer time in the bargin.  Call it with r0 negative to turn off this feature.

SYNOPSIS

       SUBROUTINE SETR (XMIN,XMAX,YMIN,YMAX,ZMIN,ZMAX,R0)

C-BINDING SYNOPSIS

       #include <ncarg/ncargC.h>

       void c_setr (float xmin, float xmax, float ymin, float ymax,
       float zmin, float zmax, float r0)

DESCRIPTION

       XMIN,XMAX   Specifies the range of X array that will be passed to SRFACE.

       YMIN,YMAX   Specifies the range of Y array that will be passed to SRFACE.

       ZMIN,ZMAX   Specifies the range of Z array that will be passed to SRFACE.  If a movie is
                   being made of an evolving Z array, ZMIN and ZMAX should contain range of the
                   union of all the Z arrays.  They need not be exact.

       R0          Distance between observer and point looked at when the picture is to fill the
                   screen when viewed from the direction which makes the picture biggest.  If R0
                   is not positive, then the relative size feature is turned off, and subsequent
                   pictures will fill the screen.

C-BINDING DESCRIPTION

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

ACCESS

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

SEE ALSO

       Online: surface, surface_params, ezsrfc, pwrzs, srface.  ncarg_cbind.

       Hardcopy: NCAR Graphics Fundamentals, UNIX Version

COPYRIGHT

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