ncl_point man page

POINT — draws a point at a specified position in the user coordinate system.

Synopsis

CALL POINT (PX,PY)

C-Binding Synopsis

#include <ncarg/ncargC.h>

void c_point (float px, float py)

Description

PX
(an input expression of type REAL) defines the X user coordinate where the dot is to be drawn.
PY
(an input expression of type REAL) defines the Y user coordinate where the dot is to be drawn.

C-Binding Description

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

Usage

If one desires a filled dot of arbitrary size see the routine NGDOTS.

The GKS routine GPM can also be used to draw a dot in world coordinates; however, NCAR Graphics user coordinates allow for mirror imaging of axes and logarithmic axes which GKS does not. See the SCD User Doc "NCAR Graphics Fundamentals, UNIX Version" for a description of these coordinate systems.

Examples

Use the ncargex command to see the following relevant examples: tareas.

Access

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

See Also

Online: gpm, gsmk, gsmksc, gscr, gspmci, spps, spps_params, plotif, ngdots, points, ncarg_cbind

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

Info

March 1993 UNIX NCAR GRAPHICS