www.gusucode.com > opcgui 工具箱 matlab 源码程序 > opcgui/opcDataAccessExplorer.m
function varargout = opcDataAccessExplorer(fileName) %OPC Data Access Explorer % opcDataAccessExplorer opens the OPC Data Access Explorer app. Graphically browse the % contents of an OPC server, view server item properties, and create and configure OPC % Toolbox clients, groups and items. Read and write OPC data, configure and start a logging % session and export logged data to the workspace. % % Clients, groups and items configured using the OPC Data Access Explorer can be exported % to the workspace, to a MAT-file or as an OPC Session File which can be imported into the % app at a later stage. % % opcDataAccessExplorer(SessionName) opens the OPC Data Access Explorer app and loads a % previously saved OPC Session File. SessionName is the name of the OPC Session File to load. % If an extension is not specified in SessionName, .osf is used. % % See also openosf. % % Copyright 2003-2013 The MathWorks, Inc. % coded by OPTI-NUM solutions (Pty) Ltd. try opcVer = opcmex('version'); catch ME throwAsCaller(ME); end % Make sure that the jvm and swing is available error(javachk('swing','opcDataAccessExplorer')); % Check if the user has a SIMULINK license available blHasSimulink = license('test','simulink'); configDir = prefdir; if nargin == 1 % The user specified a session file name [pathStr,fName,fExt] = fileparts(fileName); if isempty(fExt) fileName = [fileName, '.osf']; [pathStr,fName,fExt] = fileparts(fileName); end % Try to get the full path to the file aFileName = which(fileName); if isempty(aFileName) % which cannot find the file if isempty(pathStr) % The file must be in the current directory fileName = fullfile(pwd,fileName); else % cd to the directory, get the pwd and cd back oldDir = cd; cd(pathStr); fileName = fullfile(pwd,[fName,fExt]); cd(oldDir); end else % which returned the file fileName = aFileName; end pathStr = fileparts(fileName); if ~exist(fileName,'file') error('opc:opctool:nofile', ... '%s does not exist or is not on the path.', fileName); end % Launch the GUI, and open the session file h = com.mathworks.toolbox.opc.OPCTool(opcVer, pathStr, blHasSimulink, fileName, configDir); else % No session file, just launch the GUI h = com.mathworks.toolbox.opc.OPCTool(opcVer, pwd, blHasSimulink, configDir); end % Return output arguments if requested if nargout == 1 varargout{1} = h; end