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DeepSee interpolations server

A Python 3.9 Flask web app running on a Waitress WSGI server. Cross-platform!

NOTE FOR macOS/Linux USERS

  • You may need to prefix your terminal commands with sudo to grant the system write access to restricted folders.
    • e.g., sudo python -m pip install

Packages

Two different packages were used for interpolation:

  1. Discrete Sibson (Natural Neighbor) Interpolation in 3D.

    • See: https://github.com/innolitics/natural-neighbor-interpolation
    • NOTE: This package only works on a Windows OS. The current (08/24/2021) implementation of the frontend checks if the user is on a Windows machine before requesting app.py for an interpolation; if the user is not on a Windows machine, the frontend does not even attempt the request.
    • Because of this limitation, there are two versions of requirements.txt for installing the required python packages. The only difference between the files is that the -mac version does not have the naturalneighbors package.

  2. Nearest and Linear Interpolation over unstructured D-D data.

Getting Started

  1. Install Python 3.9.x by visiting https://www.python.org/.
  2. Open a command window or terminal rooted in this folder.

The commands for Python used are slightly different between Windows, MacOS, and Linux. But the order of the operations is the same.

Windows

  1. Check that python was install correctly with the command py --version.
  2. Create a python virtual environment (e.g. py -3.9 -m venv venv)
  3. Activate the environment (e.g. venv\Scripts\activate.bat)
  4. To check that the correct python command is invoked, run WHERE python. You may see multiple results. At the top of the results, you should see C:\<path>\<to>\<folder>\venv\Scripts\python.exe.
  5. Install the required packages (e.g. python -m pip install -r requirements-win.txt)

MacOS/Linux

  1. Check that python was install correctly with the command python3 --version.
  2. Create a python virtual environment (e.g. python3 -m venv venv)
  3. Activate the environment (e.g. source venv/bin/activate)
  4. To check that the correct python command is invoked, run which python. You may see multiple results. At the top of the results, you should see <path>/<to>/<folder>/venv/bin/python.
  5. Install the required packages (e.g. python -m pip install -r requirements-mac.txt)

Known Installation Issues

  • The python package naturalneighbors may require a bunch of extra packages installed on your computer. Try your best to follow the instructions that the compiler gives you. If you get stuck, please reach out.

Testing

At the start of every session, remember to activate your virtual environment!!

To test the server, run python app.py (from inside the activated virtual environment)

Bundling

At the start of every session, remember to activate your virtual environment!!

To bundle the server into a single executable, run pyinstaller --onefile app.py

The generated executable will be found at dist\app.exe on Windows and dist/app on MacOS/Linux.