[FIXED] matplotlib figures are empty

Issue

I run this Python code: https://github.com/calculix/beso

Config

The beso_conf.py file is modified. These variables:

path_calculix = "C:\\Users\\m3\\Downloads\\calculix_2.21_4win\\ccx_static.exe" # path to the CalculiX solver
file_name = "C:\\Users\\m3\\AppData\\Local\\Temp\\result.inp"  # file with prepared linear static analysis
cpu_cores = 1  # 0 - use all processor cores, N - will use N number of processor cores

Run

cd C:\Users\m3\repos\beso               # Go to BESO repository folder
pip install virtualenv --user           # Install virtual env, also: https://github.com/pypa/pip/issues/11845
python -m venv virtual_env              # Create a virtual env
virtual_env\Scripts\activate.bat        # Activate the virtual env
pip install numpy                       # Install a dependency
pip install matplotlib                  # Install another dependency
python beso_main.py                     # Run BESO. It uses `beso_conf.py` config file.

Visualize

Assuming BESO went through 62 iterations, we can visualize the last iteration by:

c:\Users\m3\Downloads\calculix_2.21_4win\cgx_STATIC.exe -c file062_state1.inp

Problem

For some reason the matplotlib Python figures are empty. But I cannot figure out why:

They should display how BESO iterations progress, like below:

Solution

Close the figure (or more which appear) and program should continue.

Answered By - FandaL