NAME

       GSVP (Set viewport) - establishes a rectangular subspace of normalized device coordinates space. Calls to
       GSVP are discouraged with NCAR Graphics. Instead, use the SET subroutine because SET also supports mirror
       imaging and log scaling of axes.

SYNOPSIS

       CALL GSVP (TRNUM, XMIN, XMAX, YMIN, YMAX)

C-BINDING SYNOPSIS

       #include <ncarg/gks.h>

       void gset_vp(Gint tran_num, const Glimit *vp_limits);

DESCRIPTION

       TRNUM       (Integer,   Input)   -  A  normalization  transformation  number.  The  number  of  available
                   transformations is implementation specific. In the case of  NCAR  GKS-0A,  two  normalization
                   transformations are provided:

                   0      Selects  the  identity  transformation  in which both the window and viewport have the
                          range of 0. to 1. in both coordinate directions.  This is  the  default  normalization
                          transformation  for  GKS.  It is also fixed within GKS; that is, it is illegal to call
                          GSVP with TRNUM = 0.

                   1      A normalization transformation in which the viewport is defined by XMIN  to  XMAX  and
                          YMIN to YMAX.

       XMIN        (Real, Input) - The left horizontal coordinate of the viewport.

       XMAX        (Real, Input) - The right horizontal coordinate of the viewport.  0. ≤ XMIN < XMAX ≤ 1.

       YMIN        (Real, Input) - The bottom vertical coordinate of the viewport.

       YMAX        (Real, Input) - The top vertical coordinate of the viewport.  0. ≤ YMIN < YMAX ≤ 1.

       Defaults:   TRNUM = 0, XMIN = 0.0, XMAX = 1.0, YMIN = 0.0, YMAX = 1.0

ACCESS

       To use GKS routines, load the NCAR GKS-0A library ncarg_gks.

SEE ALSO

       Online: set, gswn, gselnt, gqclip, gset_vp

       Hardcopy: NCAR Graphics Fundamentals, UNIX Version; User's Guide for NCAR GKS-0A Graphics

COPYRIGHT

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

UNIX                                             14 January 1992                                    GSVP(3NCARG)