function help_loading(self)%    Coastline data consist of counter-clockwise closed contours,% separated by NaNs. The geographic positions must be stored in a% Matlab mat-file, using the variable names "lon" and "lat", in degrees.% The current coastline data can be replaced at any time, using the% "SeaGrid/Load/Coastline" menu item.%%    Bathymetric data consist of arrays of points, stored as three% columns in an ASCII file, or stored in a mat-file as variables% "xbathy", "ybathy", and "zbathy", corresponding to longitude,% latitude (both degrees), and positive depth (arbitrary units),% respectively.  The current bathymetric data can be replaced% at any time, using "SeaGrid/Load/Bathymetry".%%    Boundary data can be loaded from a three-column ASCII file of% of [lon lat isCorner], where isCorner is 1 for each corner and% 0 for all others.  A corner-point must be the first element in% the file.  Do NOT repeat the first point at the end.% Copyright (C) 1999 Dr. Charles R. Denham, ZYDECO.%  All Rights Reserved.%   Disclosure without explicit written consent from the%    copyright owner does not constitute publication. % Version of 25-May-1999 16:27:20.% Updated    04-Apr-2000 11:10:41.seagrid_helpdlg(help(mfilename), 'SeaGrid Loading')