Lat/Lon vector plot
magvector.RdThis 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.