Access Data

Data access is enabled by removing the MINIMAL=1 variable from your environment. For example, start a container with:

podman run -it \
           --rm \
           --net host \
           -e BEAMLINE=${BEAMLINE} \
           -e DISPLAY=${DISPLAY} \
           --security-opt=label=type:container_runtime_t \
           ghcr.io/diamondlightsource/htss-rig-bluesky:latest

You may be prompted for a username and password to access data from the test rig. They are written on the top of the rig in question.

Data is supplied through Tiled with a Databroker plugin. The Tiled datasets can be viewed like Intake catalogs. The latest run in the catalog (-1) may be “read” and the data retrieved and plotted.

In [1]: tiled
Out[1]: <Catalog {1, 1, 2, 3, 4, 1, 1, 1, 2, 3, ...} ~25 entries>

Note

It may say the catalog is empty, if so you can re-run the scan from the quickstart guide to generate some data.

You can retrieve data from the latest run with tiled[-1]:

In [2]: ds = tiled[-1].primary.read()

In [3]: ds["det_image"][0].plot()
Out[3]: <matplotlib.collections.QuadMesh at 0x7fc480119930>

In [4]: plt.show()

See also

Data Access Model