volume object

Tomwer handles volume objects. Volume objects are generated by the following widgets (since version 1.1):

• volume selector

• cast volume

• nabu volume reconstruction

• python script

Here are two videos showing how you can create a volume object from scratch:

• From the dedicated interface: https://www.youtube.com/watch?v=4-RJKWlP74w

• By drag and drop of a path plus some guessing from Tomwer: https://www.youtube.com/watch?v=R2jJrIZlGY8

Volume Cast

The volume cast widget mimics the Nabu API. Here is an example of how to create a volume object and cast it:

Note: You can either connect a data or a volume object to the cast volume. If linking a data object, the volume must have been reconstructed upstream.

Warning: Volume casting currently utilizes only CPUs and does not support GPUs. Please avoid using GPU partitions for casting operations.

from tomwer.resources.video import Video

Video("gQRWCsyIm7U", height=500, width=800)

Warning: The cast volume widget now returns two volumes:

• volume: the original volume

• cast volume: the casted volume

Hands-on Exercise A

• Take one of the volumes from /data/projects/tomo-sample-data/training/workspaces/[date]/[user_ID]/PROCESSED_DATA/volume_casting and cast it to another type using the volume selector and cast volume widgets.

• Display the volume using the volume viewer

Hint: The volume viewer can also be used as a standalone application through ‘tomwer volume-viewer’