DOKK / manpages / debian 11 / libncarg-dev / mapvec.3ncarg.en
MAPVEC(3NCARG) NCAR GRAPHICS MAPVEC(3NCARG)

MAPVEC - Draws lines on a map - used in conjunction with MAPFST.

CALL MAPVEC (RLAT,RLON)

#include <ncarg/ncargC.h>

void c_mapvec (float rlat, float rlon)

(input expressions, of type REAL) specify the latitude and longitude of a point to which the "pen" is to be moved. Both are given in degrees. RLAT must be between -90. and +90., inclusive; RLON must be between -540. and +540., inclusive.

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

The statement:

CALL MAPVEC (RLAT, RLON)

is equivalent to

CALL MAPIT (RLAT, RLON, 1)

It moves the "pen" (in the "down" position) to the next point in a series of points. See the man page for MAPIT.

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

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March 1993 UNIX