gpolyline - Draw line segments connecting a sequence of user-specified coordinate pairs
Contents
Access
To use the GKS C-binding routines, load the ncarg_gks and ncarg_c libraries.
Copyright
Copyright (C) 1987-2009
University Corporation for Atmospheric Research
The use of this Software is governed by a License Agreement.
UNIX March 1993 GPOLYLINE(3NCARG)
Description
gpolyline (Polyline) - This output primitive draws line segments connecting a sequence of user-specified
coordinate pairs.
point_list.num_points
(Gint, Input) - The number of points in the line to be drawn. Must be larger than one.
point_list.points
(Gint *, Input) - The X and Y coordinates (specified in world coordinates) of the
point_list.num_points points to be connected by line segments.
Name
gpolyline - Draw line segments connecting a sequence of user-specified coordinate pairs
See Also
Online: gset_linetype(3NCARG),gset_linewidth(3NCARG),gset_colr_rep(3NCARG),gset_line_colr_ind(3NCARG),ginq_linetype(3NCARG),ginq_linewidth(3NCARG),ginq_line_colr_ind(3NCARG),dashline(3NCARG),set(3NCARG),gks(3NCARG),ncarg_gks_cbind(3NCARG)
Hardcopy: User's Guide for NCAR GKS-0A Graphics; NCAR Graphics Fundamentals, UNIX Version "The Use of X/Y
Coordinates in NCAR Graphics" SCD User Document"
Synopsis
#include <ncarg/gks.h>
void gpolyline(const Gpoint_list *point_list);
Usage
Note that the coordinate pairs must be in world coordinates and not user coordinates. Among other
things, this means that the log scaling and mirror-imaging features available via the c_set call and the
SPPS functions for drawing lines are not applicable here.
