magvector: Lat/Lon vector plot

In rcdo: Wrapper of 'CDO' Operators

Lat/Lon vector plot

Description

This operator generates 2D Lon/Lat vector plots. The data for the plot is read from infile. The input is expected to contain two velocity components. Only data on rectilinear Lon/Lat grids are supported. The output file will be named <obase>.<device> where device is the device name. The default output file format is postscript, this can be changed with the device parameter. Here is a list of all vector plot parameters: Keyname & Type & Description device & STRING & Output device (ps, eps, pdf, png, gif, gif_animation, jpeg, svg, kml) projection & STRING & Projection (cylindrical, polar_stereographic, robinson, mercator) thin_fac & FLOAT & Controls the actual number of wind arrows or flags plotted (default 2). unit_vec & FLOAT & Wind speed in m/s represented by a unit vector (1.0cm) step_freq & INTEGER & Frequency of time steps to be considered for making the animation & & (device=gif_animation). Default value is "1" (all time steps). & & Will be ignored if input file has multiple variables.

Usage

cdo_vector(ifile, parameter = NULL, ofile = NULL)

Arguments

ifile	String with the path to the input file.
parameter	STRING - Comma-separated list of plot parameters
ofile	String with the path to the output file.

Value

Operators that output one or more files return a character vector to the output files.

Operators that output an indefinite number of files return a string with the basename of the files.

Operatos that don't return filenames return a character vector with the string output.

rcdo documentation built on June 8, 2025, 12:36 p.m.