MATLAB: Can Matlab load .nitrace file format directly

.nitraceaccessing external applicationdata visualisationMATLABni - i/o traceperforming operations in an external application

I am developing an application in which i have implemented a code that reads the data from .txt file generated by NI- I/O trace using matlab.

In the above mentioned case, NI- IO trace converts .nitrace file format to .txt file format which i need to do manually. Now I need to read the data generated by NI- I/O trace directly from '.nitrace' file format. I want to know if its possible and If not possible to load the data directly using matlab, i wish to program the follwing operation of converting the .nitrace file to .txt file using matlab:

"NI I/O trace > file > export> .txt file"

any leads or approches are welcome.

Thanks,

Ranjith

Best Answer

function no_out = nitrace2txt(x)

h = actxserver('WScript.Shell');

winopen(x) %Invokes ni io trace.exe

h.SendKeys('%'); %invokes attention to io trace

pause(1); %wait

h.SendKeys('%'); %points file menu

pause(1); %wait

h.SendKeys('{DOWN}'); %opens file menu

pause(1); %wait

h.SendKeys('E'); %points export

pause(1); %wait

h.SendKeys('~'); %perform exporting

pause(1); %wait

h.SendKeys('~'); %save file in the same folder

pause(1); %wait

h.SendKeys('%{F4}'); %closes ni io trace

end

Related Solutions

MATLAB: How to send keystrokes from MATLAB to another application that was invoked using the bang(!) operator

If you are running MATLAB on a Windows machine, you can use the WScript.Shell COM interface to send keystrokes to your application. For example, for Notepad, you would use the following code:

h = actxserver('WScript.Shell');
h.Run('notepad'); %Invokes notepad.exe
pause(3); %Waits for the application to load.
h.AppActivate('Notepad'); %Brings notepad to focus
h.SendKeys('hello world~'); %Sends keystrokes
h.SendKeys('^s'); % save file
pause(3);
h.SendKeys('test.txt~'); % save as 'test.txt' and return
h.SendKeys('%{F4}'); % close Notepad Alt+F4

For more information on symbol mapping to keystrokes, refer to the following URL:

https://docs.microsoft.com/en-us/dotnet/api/system.windows.forms.sendkeys?view=netcore-3.1

MATLAB: How to load .nitrace file (NI I/O Trace File) into matlab

The file internally says "NI Spy 2.5 Capture File", and I see that NI Spy was the old name for what is now named NI I/O Trace.

The file is a binary file that cannot be read using textscan() or similar text processing routines.

I do not find any description of the file format anywhere.

I do find an old posting that hints it might be possible to use the NI utility to export the file into text form: http://forums.ni.com/t5/Instrument-Control-GPIB-Serial/What-is-file-format-of-NI-SPY-capture-files/td-p/714690

Best Answer

Related Solutions

MATLAB: How to send keystrokes from MATLAB to another application that was invoked using the bang(!) operator

MATLAB: How to load .nitrace file (NI I/O Trace File) into matlab

Related Question