ncl_gpolymarker man page

gpolymarker (Polymarker) — the polymarker output primitive draws selected symmetric symbols to mark user-specified coordinate positions.

Synopsis

#include <ncarg/gks.h>

void gpolymarker(const Gpoint_list *point_list);

Description

point_list.num_points
(Gint, Input) - The number of markers to be drawn. Must be greater than zero.
point_list.points
(Gpoint *, Input) - The X and Y coordinates of the point_list.num_points markers to be drawn, in world coordinates.

Usage

By default, the polymarker type is an asterisk. To select other polymarker types and attributes, see the man page for gset_marker_type(3NCARG).

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 dots and markers are not applicable here.

Access

To use the GKS C-binding routines, load the ncarg_gks and ncarg_c libraries.

See Also

Online: gset_marker_type(3NCARG), gset_marker_size(3NCARG), gset_colr_rep(3NCARG), gset_marker_colr_ind(3NCARG), ginq_marker_type(3NCARG), ginq_marker_size(3NCARG), ginq_marker_colr_ind(3NCARG), point(3NCARG), points(3NCARG), ngdots(3NCARG), gks(3NCARG), ncarg_gks_cbind(3NCARG)

Hardcopy: User's Guide for NCAR GKS-0A Graphics; NCAR Graphics Fundamentals, UNIX Version

Info

March 1993 UNIX NCAR GRAPHICS