Provided by: libncarg-dev_6.3.0-6build1_amd64 bug

NAME
       VECTD - Defines the second and following of a sequence of points through which a curve is to be drawn.


SYNOPSIS
       CALL VECTD (X,Y)


C-BINDING SYNOPSIS
       #include <ncarg/ncargC.h>

       void c_vectd (float x, float y)


DESCRIPTION
       X           (an input expression of type REAL) defines the X user coordinate of the next point in a
                   sequence of points defining a curve.

       Y           (an input expression of type REAL) defines the Y user coordinate of the next point in a
                   sequence of points defining a curve.


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


USAGE
       One way to draw a curve with Dashline is to call FRSTD once to define the first point of the curve and
       then to call VECTD repeatedly to define the second and all following points of the curve.

       If three or more distinct points are given, and if one of the smoothing versions of Dashline is being
       used, and if the internal parameter that suppresses smoothing is not set, then splines under tension are
       used to generate a smooth curve; the number of points actually used to draw the curve will depend on its
       length.  In all other cases, the "curve" will be approximated by just connecting the user-given points in
       the specified order.

       After the call to VECTD defining the last point of the curve, you may call LASTD, which flushes any
       portions of smoothed curves that are defined by coordinates saved in internal buffers of FRSTD and VECTD
       and that have not yet been drawn.  Calls to LASTD are not always required - for example, when a non-
       smoothing version of Dashline is used (no buffering) or when the next call to an NCAR Graphics routine
       will be to FRSTD (which flushes the buffers) - but unnecessary calls do no harm.  If you judge that one
       of the smoothing versions of Dashline may be used, it is best to put in the calls to LASTD.


EXAMPLES
       Use the ncargex command to see the following relevant examples: tdashc, tdashl, tdashp, tdashs, fdldashc,
       fdldashd.


ACCESS
       To use VECTD or c_vectd load the NCAR Graphics libraries ncarg, ncarg_gks, and ncarg_c, preferably in
       that order.


SEE ALSO
       Online: dashline, dashline_params, curved, dashdb, dashdc, frstd, lastd, lined, reset, ncarg_cbind

       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.