ncl_vvgetr - Man Page

CALL VVGETR (CNM,RVL)

#include <ncarg/ncargC.h>

void c_vvgetr(char *cnm, float *rvl)

CNM

(CHARACTER, input) is the name of a parameter whose real value is to be retrieved. Only the first three characters of CNM are examined. The three characters may either be entirely upper or entirely lower case; mixed case is not recognized. It is recommended that the rest of the character string be used to improve the readability of the code. For example, instead of just ´DMX´, use ´DMX - Device Maximum Vector Size´.

RVL

(REAL, output) is a variable in which the value of the parameter specified by CNM is to be returned.

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

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

Use the ncargex command to see the following relevant examples:  ffex02, ffex05, vvex01, vvex02.

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

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

Online: vectors, vectors_params, vvectr, vvgetc, vvgeti, vvinit, vvrset, vvsetc, vvseti, vvsetr, vvudmv, vvumxy, ncarg_cbind.

Hardcopy: NCAR Graphics Fundamentals, UNIX Version

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