gcon2con(1m)

NAME
gcon2con - Create a contour file from a GCON data file

USAGE
gcon2con

DESCRIPTION
Reads a generalized contour file, usually obtained from xtract(1), and create a contour file with four columns. By specifiying a file with a list of ship heading, you can rotate the vectors so that the positive x-axis is starbord to the ship track, and positive y-axis is along track. For an explanation of generalized contour files, see con2con(1).

PARAMETERS
The following parameters must be edited:

gcon_file
    Name of generalized contour file.

con_file
    Name for output contour file.

nav_file
    Name of a file with time and heading columns for rotation of contour velocities. Set it to the empty string to avoid this.

t_nav
    Number of the column in navigation file containing time information.

h_nav
    Number of the column in navigation file containing heading information.

t_gcon
    Number of column in gcon_file containing time information. This is used to synchronize the generalized contour data with navigation information.

i_gcon
    Vector of indexes to columns in gcon_file to print in the output file. To generate a contour output,this will be a list of column numbers like [ x y u v ].

scale
    Multiply velocities by this factor.

AUTHORS
Pierre Jaccard, Geophysical Institute, University of Bergen, 1999