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tsg_util/readTsgDataTxt.m

+function [error] = readTsgDataTxt( hTsgGUI, filename)
+% Function to read the TSG data. Should be a NetCDF file
+%
+% Input
+% -----
+% hTsgGUI ............ Handle to the main user interface
+% filename ........... Data filename
+%
+% Output
+% ------
+% error .............. 1: OK - -1 : an error occured
+%
+% The data are store using setappdata - Variable name : 'tsg_data'
+%
+%
+% Caution : replace the fill-value with NaN
+% $Id$
+
+% Get the data from the application GUI
+% -------------------------------------
+tsg = getappdata( hTsgGUI, 'tsg_data');
+
+% Display read file info on console
+% ---------------------------------
+fprintf('\nREAD_ASCII_FILE\n'); tic;
+
+% Open the file
+% -------------
+fid = fopen( filename, 'r' );
+
+% Check file
+% -----------
+if fid == -1
+  msg_error = ['TSG_GOSUD file_lecture : Open file error : ' filename];
+  warndlg( msg_error, 'ASCII error dialog');
+  sprintf('...cannot locate %s\n', filename);
+  error = -1;
+  return;
+end
+
+% Display more info about read file on console
+% --------------------------------------------
+fprintf('...reading %s : ', filename);
+
+% Read the file
+% -------------
+tsgData = fscanf(fid, '%d/%d/%d %d:%d:%d %f %f %f %f %d %f %f', ...
+  [13 Inf])';
+
+% Every variable are put in a structure
+% -------------------------------------
+tsg.DAYD       = datenum(tsgData(:,3), tsgData(:,2),tsgData(:,1), ...
+  tsgData(:,4),tsgData(:,5),tsgData(:,6));
+
+% save original date
+% ------------------
+tsg.DATE       = datestr(  tsg.DAYD, 'yyyymmddHHMMSS' );
+
+% convert with julian day with origin 1950
+% -----------------------------------------
+%% a supprimer !!!!!!!
+% tsg.TIME_TSG = datenumToJulian(tsg.TIME_TSG);
+
+tsg.LATX       = tsgData(:,7);
+tsg.LONX       = tsgData(:,8);
+tsg.SSJT       = tsgData(:,9);
+tsg.SSPS       = tsgData(:,10);
+tsg.SSPS_QC    = tsgData(:,11);
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+tsg.SSPS_ADJ   = tsgData(:,12);
+tsg.SSPS_ERR   = tsgData(:,13);
+
+% Compute ship velocity from positions if sog not available
+% ---------------------------------------------------------
+if isempty(tsg.SPDC)
+  range = m_lldist(tsg.LONX,tsg.LATX);
+  ind = size(tsg.DAYD);
+  tsg.SPDC = zeros(size(ind));
+  for i=1:length(tsg.DAYD)-1
+    tsg.SPDC(i) = range(i) / ((tsg.DAYD(i+1)-tsg.DAYD(i)) * 24 * 1.854);
+  end
+  tsg.SPDC = [tsg.SPDC';0];
+end
+
+
+% Save the data in the application GUI
+% ------------------------------------
+setappdata( hTsgGUI, 'tsg_data', tsg );
+
+% Clear the Workspace
+% -------------------
+clear tsgdata
+
+% Close the file
+% --------------
+fclose( fid );
+
+% Display time to read file on console
+% ------------------------------------
+t = toc; fprintf('...done (%6.2f sec).\n\n',t);
+
+% Everything OK
+% -------------
+error = 1;