[SOLVED] How to read .mat output files in JModelica?

How to read .mat output files in JModelica?

To save the time, I'm trying to read the .mat file rather than simulate the model again.

I used scipy.io.loadmat but it didn't work well:

res = loadmat('ChatteringControl_result.mat')
res.keys()

['Aclass', 'dataInfo', 'name', 'data_2', 'data_1', 'description']

The keys are not variable names, and I don't know how to get the variable values.

Then I searched for resolutions, and found DyMat, it works well for other variables but cannot get time.

res1 = DyMat.DyMatFile('ChatteringControl_result.mat')
T = res1['T']
t = res1['time']

KeyError: 'time'

So, how can I get all the results in JModelica?(Without open Matlab of course.)Like, a built-in function in JModelica?

BIG THANKS!

Solution

To load the mat file using JModelica you can use this code:

from pyfmi.common.io import ResultDymolaBinary

res = ResultDymolaBinary("MyResult.mat")

var = res.get_variable_data("myVar")

var.t #Time trajectory
var.x #Variable trajectory