% PeiGui: Visualization tool for HOPS netcdf files.
%
% USAGE:  peigui
% Pedro Velez (UIB-IEO), July 1999, email: dfspvb4@ps.uib.es
%  This sofware permit to visualize output files from the 
%  HOPS model. The present sofware scan which variables can 
%  visualized form the output file. All the information is read
%  form the .nc file, so any additional information is needed
%
%
%  All the subroutines are well documented, please refear to them 
%  in case of any problem
%  
%
%  peigui			- VISUALIZATION TOOL FOR HOPS NETCDF FILES, MAIN program.
%
%%%% peigui functions
%
%  hopscolorbar		- Display color bar (color scale).
%  peigui_2dslice		- Returns a matrix containing de 2- dimensional.
%  peigui_abstimegui	- This funtion open a window for setting the absolute time.
%  peigui_animatioguide - This funtion open a window with a menu for  animations.
%  peigui_animation	- Function with some command used in peigui animation 
%  peigui_animationsaved  - This funtion open a window with a menu to visualizate 
%  peigui_contour_command - Function with some command used in peigui for contouring
%  peigui_depthslice   - Returns a matrix containing a horizontal  slice
%  peigui_depthsliceu	- Returns a matrix containing a horizontal slice of u
%  peigui_depthslicev	- Returns a matrix containing a horizontal slice of v
%  peigui_islice	      - Returns a matrix containing a vertical slice
%  peigui_isliceu		- Returns a matrix containing a vertical slice of u
%  peigui_islicev		- Returns a matrix containing a vertical slice of v
%  peigui_jslice	      - Returns a matrix containing a vertical slice
%  peigui_jsliceu		- Returns a matrix containing a vertical slice of u
%  peigui_jslicev		- Returns a matrix containing a vertical slice of v
%  peigui_kslice	      - Returns a matrix containing a  k- slice (field)
%  peigui_ksliceu		- Returns a matrix containing a  k- slice (field) of u
%  peigui_kslicev		- Returns a matrix containing a  k- slice (field) of v
%  peigui_mainmenu	- This function open the main window of the peigui sofware
%  peigui_menu_command - Function with some command used in peigui. 
%  peigui_varmenu      - This function scan trough the NC file and find variables
%  peigui_vector_command  - In this function there are some command used in
%                            peigui for drawing vectors
%  peigui_velocity_settingsmenu  - This funtion open a window where differents setting for 
%                                    the velocities can be modificated.
%  peigui_realcoastline   - This function add the real coast line to the plot.
%
%
