Plot Signal Data Logged to File

Step 4 of 4 in Signal Logging to a File

You can use the MATLAB^® plotting functions for visualization of your non-real-time simulated data or your real-time executed data.

After running your real-time application and logging data to a file, you can plot the data.

This procedure uses the model sldrtex_model. To open this model, in the MATLAB Command Window, type:

open_system(docpath(fullfile(docroot, 'toolbox', 'sldrt', 'examples', 'sldrtex_model')))

It assumes that you saved your data to the variable ScopeData.

1. In the MATLAB Command Window, type:

   ScopeData
   

   ScopeData = 
          time: [10000x1 double]
       signals: [1x1 struct]
     blockName: 'sldrtex_model/Scope'
   

2. To list the MAT-files saved to your disk, type:

   dir *.mat
   

   ScopeData.mat
   

3. To clear the MATLAB workspace and load the scope data, type:

   clear 
   load ScopeData 
   who
   

   Your variables are:
   ScopeData
   

4. To plot the first 1000 points, type:

   plot(ScopeData.time(1:1000), 
        ScopeData_0.signals.values(1:1000))

   The MATLAB environment plots the first 1000 samples over 0.0000–0.9990 seconds.

   

Related Topics

• Signal Logging to the Workspace
• Signal Logging to a File

Signal Logging to a File