Struct TensorPoisson 

pub struct TensorPoisson {
    pub shape: [usize; 3],
    pub dx: [f64; 3],
    /* private fields */
}

Tensor-format Poisson solver with isolated (vacuum) boundary conditions.

The Green’s function FFT is precomputed during construction, so repeated solves only require the convolution pipeline.

Fields

shape: [usize; 3]

dx: [f64; 3]

Implementations

impl TensorPoisson

pub fn new( shape: [usize; 3], dx: [f64; 3], exp_sum_accuracy: f64, _tolerance: f64, _max_rank: usize, ) -> Self

Create a new TensorPoisson solver.

pub fn from_domain( domain: &Domain, exp_sum_accuracy: f64, tolerance: f64, max_rank: usize, ) -> Self

Create from pre-built domain parameters.

Trait Implementations

impl PoissonSolver for TensorPoisson

fn solve(&self, density: &DensityField, g: f64) -> PotentialField

Solve ∇²Φ = 4πGρ and return the potential field.

fn compute_acceleration(&self, potential: &PotentialField) -> AccelerationField

Compute the gravitational acceleration g = −∇Φ via spectral differentiation or finite differences.