function help_masktool(self)

%    The SeaGrid Mask Tool is invoked with the "Tools/Mask Tool"
% menu item.  Grid cells in the mask can be toggled by clicking
% on them with mouse button #1.  The changes take place immediately.
% Use the Mask Tool at any time, but especially after a mask has 
% been generated with the "Compute/Mask" menu item.
%    The mask can be cleared at any time by selecting the "Compute/
% Erase Mask" menu item.
%    The existing mask will be interpolated whenever the number of
% grid cells is changed.
 
% 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 17-Jun-1999 16:42:56.
% Updated    23-Dec-1999 09:10:26.

seagrid_helpdlg(help(mfilename), 'SeaGrid Mask Tool')
