gridpoints: Indicate grid points on the current image.

In adeckmyn/meteogrid: Gridded meteorological data

Indicate grid points on the current image.

Description

This little function will return the co-ordinates and put a marker on given grid points. It is essentially the same ase points, but it accepts grid indices in stead of geographical co-ordinates.

Usage

gridpoints(x, y=NULL, ...)

Arguments

x, y	Grid indices (column and row) of the points to plot. Either 2 vectors, or a 2-column matrix.
...	Graphical parameters for the generic points function.

Value

A list with following members:

data	The value of the field in the chosen grid point.
x, y	The actual coordinates of the chosen grid point.
i, j	The matrix indices of the chosen grid point.

See Also

DomainPoints,points

adeckmyn/meteogrid documentation built on Jan. 13, 2025, 11:02 p.m.