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matplotlib.pyplot.savefig() breaks after useing model.linearize() #224
Description
Description
I can't use pyplot.savefig() from matplotlib.pyplot after linearizing a model with OMPython.
Steps to Reproduce
from OMPython import OMCSessionZMQ
omc = OMCSessionZMQ()
model_path=omc.sendExpression("getInstallationDirectoryPath()") + "/share/doc/omc/testmodels/"
from OMPython import ModelicaSystem
import matplotlib.pyplot as plt
mod1 = ModelicaSystem(model_path + "BouncingBall.mo","BouncingBall")
plt.plot([1,2,3])
plt.savefig('test_before.png')
plt.show()
mod1.linearize()
plt.plot([1,2,3])
plt.savefig('test_after.png')
plt.show()
The test_before.png will be saved, the test_after.png will not.
If you remove mod1.linearize(), both will be saved.
Expected Behavior
savefig should work in both cases.
Screenshots
Version and OS
- Python Version 3.10.11
- OMPython Version 3.6.0
- OpenModelica Version 1.18
- OS: win10
Activity
syntron commentedon Aug 18, 2025
I just tested it - this is solved by PR #320 -no execution of the created Python file (but using the ast module). Thus, there is no interaction with any other Python code!
martinscripts commentedon Aug 19, 2025
Perfect, thank you.
I checked, an I get this error now #196
But I'll close this issue now.