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bcs-api

Overview: Combining LabView BCS with Bluesky

BCS Single Motor Scan

This notebook demonstrates how the LabView Beamline Control System API can be used to implement a "Single Motor Scan" as an ophyd device. Furthermore, this "Single Motor Scan" device can be initiated by the bluesky Run Engine as a fly plan with data avaliable in a bluesky run document.

Open BCS-API_06_BlueskyFlying_M201Roll_BcszSync_nb.ipynb or BCS-API_06_BlueskyFlying_M201Roll_BcszSync_nb.html for details.

BCS Single Motor Flying Scan

This notebook demonstrates how the LabView Beamline Control System API can be used to implement a "Single Motor Flying Scan" as an ophyd device. Furthermore, this "Single Motor Flying Scan" device can be initiated by the bluesky Run Engine as a fly plan with data avaliable in a bluesky run document.

Open BCS-API_07_BlueskyFlying_FlyingBeamlineEnergy_BcszSync_nb.ipynb or BCS-API_07_BlueskyFlying_FlyingBeamlineEnergy_BcszSync_nb.html for details.

Getting Started

  1. Install conda
  2. Configure conda environment
  3. Install git
  4. Configure git repository
    ...in a new/empty folder
  5. Pull: Download repository to local folder
  6. Push: Upload committed changes to server

Install conda

Configure conda environment

Run the following commands on the command line; press 'Y'(es) when requested

conda create --name bluesky python=3.8
conda activate bluesky
conda install future
conda install -c conda-forge jupyterlab
conda install intake
conda install -c conda-forge caproto ophyd nodejs
conda update -c conda-forge pip setuptools numpy
conda install git scikit-image

Then install the following bluesky requirements, per bluesky-tutorial instructions

# Download tutorial notebooks, requirements, utilities
git clone https://github.com/bluesky/tutorials
cd tutorials

# Install required packages
python -m pip install -r binder/requirements.txt
python -m pip install -e ./bluesky-tutorial-utils  # MUST use -e here

# Install extension that supports '%matplotlib widget'.
jupyter labextension install @jupyter-widgets/jupyterlab-manager
jupyter labextension install jupyter-matplotlib

If you get errors regarding "cannot import name 'Blosc' from 'numcodecs'", you might need to (re)install zarr

conda install git zarr

Install git

on Windows

Installation guide
Download git for windows

on Mac OS X

Installation guide
Git is probably already installed on your computer. Try typing the following command in a Terminal window.

git --version

on Linux

Installation guide

Configure a git repository on your computer

In a folder with existing files

The following commands will:

  • initialize a local git repository,
  • create a branch of that repository that is dedicated to your local folder contents,
  • add all files/subfolders to the repository,
  • upload a copy of your files to a remote repository
cd <LOCAL-PROJECT-FOLDER>
git init
git config user.name "<YOUR-NAME>"
git config user.email <YOUR-EMAIL>
git remote add origin https://<GITHUB-USER-NAME>@github.com/als-computing/bcs-api.git
git checkout <EXISTING-BRANCH-NAME>

Example:

cd "/C/experiments/Beamline Commissioning/BCS-API/" 
git init
git config user.name "Ernest O. Lawrence"
git config user.email Ernest.O.Lawrence@lbl.gov
git remote add origin https://eolawrence@github.com/als-computing/bcs-api.git
git checkout feature0002/configure-devices

Download remote repository to your local folder

cd <LOCAL-PROJECT-FOLDER>
git pull

Example:

cd "/C/experiments/Beamline Commissioning/BCS-API/" 
git pull

Push: Upload committed changes to server

Make changes on a NEW branch; push to remote repository

git checkout -b <BRANCH-NAME>
# Edit and save files
git add .
git commit -m "<COMMIT-MESSAGE>"
git push -u origin <BRANCH-NAME>

Example:

git checkout -b feature0003/backlash-control
# Edit and save files
git add .
git commit -m "Added implicit backlash control to motors"
git push -u feature0003/backlash-control