Provided by: libncarg-dev_6.6.2.dfsg.1-10build2_amd64 
NAME
SPPS_params - This document briefly describes all of the internal parameters of SPPS.
DESCRIPTION
In calls to GETUSV and SETUSV, which are used to access the internal parameters of SPPS, the arguments VN
and IV are as follows:
VN (an input constant or variable of type CHARACTER) is the name of a parameter; only the first
two characters are meaningful. Remember that, in FORTRAN, a constant of type CHARACTER is a
string of characters enclosed in apostrophes.
IV (an input or output value of type INTEGER), is either the returned current value of the
parameter specified by VN or the desired new value of that parameter, as described in the
following table:
Parameter Description Possible Values of IV
Name (VN)
--------- ----------- ---------------------
'LS' Axis scaling 1 = linear X, linear Y
("Log Scaling" flag) 2 = linear X, log Y
3 = log X, linear Y
4 = log X, log Y
'MI' Axis direction reversal 1 = neither X nor Y
("MIrroring" flag - axis 2 = X, but not Y
from maximum to minimum 3 = Y, but not X
rather than min to max) 4 = both X and Y
'MU' Metacode output Unit 2
'PB' Pen-move Buffer size 2 to 50
Both 'LS' and 'MI' are normally set by calling the routine SET, but can be set independently
by calling SETUSV.
The parameter 'MU' is set, prior to calling OPNGKS, to change the FORTRAN logical unit number
to be used by GKS for metacode output.
The parameter 'PB' sets the size of the SPPS polyline buffer. The value "2" effectively
turns buffering off.
Obsolete Description
parameters
---------- -----------
'XF' X axis exponent for plotter coordinates
(The PAU range would be 1 to 2**XF - 1 in X)
'YF' Y axis exponent for plotter coordinates
(The PAU range would be 1 to 2**YF - 1 in Y)
'IR' Red color intensity (relative to green and blue)
'IG' Green color intensity (relative to red and blue)
'IB' Blue color intensity (relative to red and green)
'IM' Maximum color index to be used
'IN' Overall color intensity
'II' Restore color index
'LW' Line width scale factor in thousandths
(2000 means double the default line width)
'MS' Marker size in thousandths
(2000 means double the default marker size)
The values of the parameters 'XF' and 'YF' are the same as the values of the arguments IX and
IY in calls to the routines SETI and GETSI.
The parameters 'IR', 'IG', 'IB', 'IM', 'IN', and 'II' were all part of a color-setting scheme
meant to allow overall intensity to be set independently of color. This scheme is now
obsolete; it has been replaced by normal GKS color setting through the routines GSCR, GSPLCI,
GSFACI, GSPMCI, and GSTXCI. The corresponding GKS inquiry routines to determine current
color settings are GQCR, GQPLCI, GQFACI, GQPMCI, and GQTXCI. See Section 6 of "User's Guide
for NCAR GKS-0A Graphics."
The parameter 'LW' is replaced by the GKS line width scale factor routine, GSLWSC, which has
the corresponding query function GQLWSC.
The parameter 'MS' is replaced by the GKS marker size scale factor routine, GSMKSC, which has
the corresponding query function GQMKSC.
USAGE
Values of SPPS parameters are set by calling the routine SETUSV and retrieved by calling the routine
GETUSV.
SEE ALSO
Online: gscr,gsplci, gsfaci, gspmci, gstxci, gsmksc, gslwsc, spps, getset, getsi, getusv, plotif, set,
setsi, setusv
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 March 1993 SPPS_params(3NCARG)