SimpleGM - A graphical user interface for simple ground motion processing

Copyright (C) 2019 Joseph P. Vantassel ([email protected])

SimpleGM is a graphical user interface for SigProPy, an open-source digital signal processing module for Python. SimpleGM was built as an easy-to-use interface for performing some of the most common methods of ground motion processing.

Getting Started

After downloading and unzipping the repository:

1. Open the command prompt.

2. Create a virtual environment called env by entering the command virtualenv env.

3. Active the virtual environment by running the file activate inside of env with source env/bin/activate. Note that the path to the activate file is installation dependent and may vary.

4. Once the virtual environment is running, install dependencies with pip install -r requirements.txt.

5. Navigate to the directory containing the file simplegm.py.

6. Enter python simplegm.py to launch the program using python.

7. The main and folder navigation windows will appear below.

8. Navigate to the folder named data included in the repository download. You will see four comma-delimited ground-motion record files. These files are shown in the example navigation window above.

9. Select the chichi.csv ground-motion record. The main window will update to appear as below.

10. Apply a butter worth filter and cosine taper by editing the dialog boxes on the top left and then pressing Apply. To apply a different filter or taper to the time record, press Undo to return to the original time record, enter the new settings, and press Apply.

11. Perform the Fast-Fourier Transform on the filtered and tapered record by pressing FFT.

12. Apply smoothing and resampling to the Fourier tranform by using the dialog boxes on the bottom left and pressing Apply. To apply a different set of smoothing and resampling to the Fourier transform, press FFT to return to the a clean version of the Fourier transform, enter the new settings, and press Apply.