Simulation Cells
Inspect the derived box geometry and periodic boundary data extracted from trajectories.
Simulation cells are derived automatically during trajectory processing. They are read-only: VOLT extracts them from each timestep and uses them across the viewer, analysis plugins, and scripting workflows for box dimensions and periodic boundary conditions.

What a simulation cell contains
Each record stores the spatial context for a specific timestep.
| Property | Description |
|---|---|
| Bounding Box | Width, height, and length of the box, shown in angstroms |
| Cell Vectors | The lattice vectors used to describe the box geometry |
| Cell Origin | The Cartesian origin of the cell |
| Periodic Boundary Conditions | Whether the box wraps along X, Y, and Z |
| Timestep | The frame this cell belongs to |
| Trajectory | The parent trajectory that produced the record |
Listing and inspection
The listing groups simulation-cell records by team and supports filtering by trajectory. Each record exposes the timestep, dimensions, and periodic axes.
Relationship to trajectory processing
VOLT extracts box information frame by frame during dump or data file parsing and stores it alongside the rest of the processed trajectory metadata. Simulation cells reflect the current state of their parent trajectory; replacing the underlying data requires reprocessing the trajectory.