magnelio.mesh

Mesh components. Mesh and MeshControl live in the core magnelio namespace; this component holds the grid container and face identification for custom setups.

class magnelio.mesh.BoxFace(value)

Identifies one face of the simulation bbox by its outward normal.

The local (u, v) axes per face are chosen so u × v points into the simulation domain (matching the Poynting convention for forward modal waves).

property inward_sign: int

+1 for MIN faces (inward = +axis); −1 for MAX faces.

property is_max: bool

True for X_MAX / Y_MAX / Z_MAX faces.

property normal_axis: int

Global axis index perpendicular to the face (0=x, 1=y, 2=z).

property u_axis: int

Global axis index for the local-u tangential direction.

property v_axis: int

Global axis index for the local-v tangential direction.

class magnelio.mesh.GridLines(x, y, z)

Sorted node positions for a structured non-uniform hexahedral grid.

All coordinates are in meters.

The number of cells in each direction is len(x) - 1, etc.

Parameters:

• x (np.ndarray) – Sorted array of x node positions, shape (Nx+1,).

• y (np.ndarray) – Sorted array of y node positions, shape (Ny+1,).

• z (np.ndarray) – Sorted array of z node positions, shape (Nz+1,).

property Nx: int

Number of cells in x direction.

property Ny: int

Number of cells in y direction.

property Nz: int

Number of cells in z direction.

property courant_dt_max: float

Maximum stable time step (Courant limit, safety factor = 1.0).

Use stability.courant_dt(grid, accuracy) for production use.

property dx: ndarray

Cell sizes in x, shape (Nx,).

property dy: ndarray

Cell sizes in y, shape (Ny,).

property dz: ndarray

Cell sizes in z, shape (Nz,).

property n_cells: int

Total number of cells.