mrpro.data.traj_calculators.KTrajectoryRadial2D

class mrpro.data.traj_calculators.KTrajectoryRadial2D[source]

Bases: KTrajectoryCalculator

Radial 2D trajectory.

__init__(angle: float = torch.pi * 0.618034) → None[source]

Initialize KTrajectoryRadial2D.

Parameters:

angle (float, default: torch.pi * 0.618034) – angle in rad between two radial lines

__call__(*, n_k0: int, k0_center: int | Tensor, k1_idx: Tensor, reversed_readout_mask: Tensor | None = None, **_) → KTrajectory[source]

Calculate radial 2D trajectory for given header information.

Parameters:

• n_k0 (int) – number of samples in k0 (radial readout)

• k0_center (int | Tensor) – position of k-space center in k0

• k1_idx (Tensor) – indices of k1 (angle)

• reversed_readout_mask (Tensor | None, default: None) – boolean tensor indicating reversed readout

Returns:

radial 2D trajectory for given KHeader

__eq__(value, /)

Return self==value.

__new__(**kwargs)