Provided by: libncarg-dev_6.6.2.dfsg.1-1_amd64 
NAME
CONOP1 - sets option switches for the Conran_family utility.
SYNOPSIS
CALL CONOP1 (IOPT)
DESCRIPTION
IOPT Character, input -- Selects an internal parameter and sets an option switch.
The possibilities are:
'DEF'
'EXT=ON' or 'EXT=OFF'
'GRI=ON' or 'GRI=OFF'
'ITP=C1' or 'ITP=LIN'
'LAB=ON' or 'LAB=OFF'
'LOT=ON' or 'LOT=OFF'
'MES=ON' or 'MES=OFF'
'PDV=ON' or 'PDV=OFF'
'PER=ON' or 'PER=OFF'
'PMM=ON' or 'PMM=OFF'
'PSL=ON' or 'PSL=OFF'
'REP=ON' or 'REP=OFF'
'SCA=ON' or 'SCA=OFF' or 'SCA=PRI'
'TFR=ON' or 'TFR=OFF'
'TOP=ON' or 'TOP=OFF'
'TRI=ON' or 'TRI=OFF'
The following options are defined by this subroutine:
DEF This option resets ALL parameters to their default values. DEF has no 'ON' or
'OFF' states.
To activate: CALL CONOP1('DEF')
EXT Parameter to set extrapolation. Normally all CONRAN versions will only plot
the boundaries of the convex hull defined by the user's data. To have the
contours fill the rectangular area of the frame, set the EXT switch ON. The
default is OFF.
To turn on: CALL CONOP1('EXT=ON')
To turn off: CALL CONOP1('EXT=OFF')
GRI The parameter to display the grid. GRI is OFF by default.
To turn on: CALL CONOP1('GRI=ON')
To turn off: CALL CONOP1('GRI=OFF')
Note: If GRI=ON, the virtual grid will be superimposed over the contour plot.
The X and Y tick intervals will be displayed under the map only if PER=ON.
(see PER)
ITP Set the interpolation scheme. There are two schemes -- C1 surfaces and
linear. The C1 method takes longer but will give the best results when the
data is sparse (less than 100 points). The linear method will produce a
better plot when there is a dense data set. The default is C1 surface.
For C1 surface CALL CONOP1('ITP=C1')
For linear CALL CONOP1('ITP=LIN')
LAB This parameter can be set to either label the contours (LAB=ON) or not
(LAB=OFF). The default value is LAB=ON. (Does not apply to entry CONRAQ.)
To turn on: CALL CONOP1('LAB=ON')
To turn off: CALL CONOP1('LAB=OFF')
LOT The parameter to list options on the printer. The default value is OFF: no
options are displayed.
To turn on: CALL CONOP1('LOT=ON')
To turn off: CALL CONOP1('LOT=OFF')
Note: Print is directed to the standard output unit.
MES The parameter to plot a message. The default is ON.
To turn on: CALL CONOP1('MES=ON')
To turn off: CALL CONOP1('MES=OFF')
Note: If MES=ON, a message is printed below the plot giving contour intervals
and execution time in seconds. If PER or GRI is ON, the message also contains
the X and Y tick intervals.
PDV The parameter to plot the input data values. The default value is PDV=OFF.
To turn on: CALL CONOP1('PDV=ON')
To turn off: CALL CONOP1('PDV=OFF')
Note: If PDV=ON, the input data values are plotted relative to their location
on the contour map. If you only wish to see the locations and not the values,
set PDV=ON and change FMT to produce an asterisk (*) such as (I1).
PER The parameter to draw a perimeter. The default value is PER=ON, which causes
a perimeter to be drawn around the contour plot.
To turn on: CALL CONOP1('PER=ON')
To turn off: CALL CONOP1('PER=OFF')
Note: If MES is ON, the X and Y tick intervals will be given. These are the
intervals in user coordinates that each tick mark represents.
PMM The parameter to plot relative minima and maxima. (Does not apply to entry
CONRAQ.) This parameter is OFF by default.
To turn off: CALL CONOP1('PMM=OFF')
To turn on: CALL CONOP1('PMM=ON')
PSL The parameter which sets the plot shield option. The outline of the shield
will be drawn on the same frame as the contour plot. (Does not apply to entry
CONRAQ.) By default this option is OFF.
Draw the shield: CALL CONOP1('PSL=ON')
Don't draw it: CALL CONOP1('PSL=OFF')
Note: See parameter SLD using "man conop3" to see how the polygon is entered
which defines the shield.
REP The parameter indicating the use of the same data in a new execution. The
default value is OFF.
To turn on: CALL CONOP1('REP=ON')
To turn off: CALL CONOP1('REP=OFF')
Note: If REP=ON, the same X-Y data and triangulation are to be used, but it is
assumed that the user has changed the contour values or resolution for this
run. Scratch arrays WK and IWK must remain unchanged.
SCA The parameter for scaling of the plot on a frame. This parameter is ON by
default.
User scaling: CALL CONOP1('SCA=OFF')
Program scaling: CALL CONOP1('SCA=ON')
Prior window: CALL CONOP1('SCA=PRI')
If SCA=OFF, plotting instructions are issued using the user's input
coordinates. SCA=OFF should be used to interface with EZMAP. If SCA=ON, a
viewport is established such that the plot will fit into the center 90 percent
of the frame. If SCA=PRI, the program maps the user's plot instructions into
the portion of the frame defined by the current normalization transformation.
TFR The parameter to advance the frame before triangulation. The default value is
TFR=ON, which means that the contours and the triangles will be plotted on
separate frames.
If program set: CALL CONOP1('TFR=ON')
To turn off: CALL CONOP1('TFR=OFF')
Note: Triangles are plotted after the contouring is completed. To see the
triangles over the contours, set TFR=OFF.
TOP The parameter to plot only the triangles.
To turn off: CALL CONOP1('TOP=OFF')
To turn on: CALL CONOP1('TOP=ON')
Setting TOP=ON causes parameters TRI and TFR to be set to TRI=ON, and TFR=OFF.
Setting TOP=OFF results in TRI=OFF and TFR=ON. If another setting is wanted
for either TRI or TFR, it should be reset after the TOP call.
Note: The user may wish to overlay the triangles on some other plot. 'TOP=ON'
will allow that.
TRI The parameter to plot the triangulation. The default is OFF and therefore the
triangles are not drawn.
To turn on: CALL CONOP1('TRI=ON')
To turn off: CALL CONOP1('TRI=OFF')
Note: Plotting the triangles will indicate to the user where good and bad
points of interpolation are occurring in the contour map. Equilateral
triangles are optimal for interpolation. Quality degrades as triangles
approach a long and narrow shape. The convex hull of the triangulation is
also a poor point of interpolation.
USAGE
CONOP1 is called to toggle Conran_family options before entries CONRAN, CONRAQ, or CONRAS
are called to generate the contour plot.
EXAMPLES
Use the command ncargex to see the following examples: tconaq, tconan, and tconas.
ACCESS
To use CONOP1 load the NCAR Graphics libraries ncarg, ncarg_gks, and ncarg_c, preferably
in that order.
MESSAGES
See the conran_family man page for a description of all Conran_family error messages
and/or informational messages.
SEE ALSO
Online: conran_family, conran_family_params, conran, conraq, conras, conop2, conop3,
conop4, conpack, conpack_params
Hardcopy: NCAR Graphics Contouring and Mapping Tutorial; 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.