ncl_pcgetr man page

PCGETR — Retrieves the real value of an internal parameter of type REAL or INTEGER.

Synopsis

CALL PCGETR (PNAM,RVAL)

C-Binding Synopsis

#include <ncarg/ncargC.h>

void c_pcgetr (char *pnam, float *rval)

Description

PNAM
(an input expression of type CHARACTER) specifies the name of the parameter to get. The name must appear as the first two characters of the string. If the internal parameter is one of the two (´BC´ and ´CC´) that are arrays, the index of the desired array element may appear, enclosed in parentheses, in columns 3 and following. Other characters may be used to document the use of the parameter being retrieved; for example, instead of just ´MA´, one can use ´MA - MAPPING FLAG´ and, instead of ´CC(10)´, one can use ´CC(10) - SPECIAL COLOR 10´.
RVAL
(an output variable of type REAL) is the name of the variable into which the value of the internal parameter specified by PNAM is to be retrieved. If the internal parameter is a value "r" of type REAL, the value returned is "r". If the internal parameter is a value "i" of type INTEGER, the value returned is "REAL(i)".

C-Binding Description

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

Usage

This routine allows you to retrieve the current value of Plotchar parameters. For a complete list of parameters available in this utility, see the plotchar_params man page.

Examples

Use the ncargex command to see the following relevant examples: cpexcc, epltch, vvexcc, fpchiqu.

Access

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

Messages

See the plotchar man page for a description of all Plotchar error messages and/or informational messages.

See Also

Online: plotchar, plotchar_params, pcdlsc, pcgetc, pcgeti, pchiqu, pcloqu, pcmequ, pcmpxy, pcpnwi, pcrset, pcsetc, pcseti, pcsetr, ncarg_cbind.

Hardcopy: NCAR Graphics Fundamentals, UNIX Version

Info

March 1993 UNIX NCAR GRAPHICS