Struct RangeSeparatedPoisson 

pub struct RangeSeparatedPoisson { /* private fields */ }

Range-separated Poisson solver.

Decomposes the Green’s function G(r) = -1/(4 pi r) into a short-range component (direct summation within radius r_s) and a long-range component (solved by an inner PoissonSolver, typically FFT-based).

Implementations

impl RangeSeparatedPoisson

pub fn new( domain: &Domain, split_radius: f64, inner: Box<dyn PoissonSolver + Send + Sync>, ) -> Self

Create a new range-separated Poisson solver.

Arguments

• domain – simulation domain (provides grid spacing and resolution)
• split_radius – the splitting radius r_s in physical units. Cells within distance r_s receive a direct short-range correction.
• inner – the solver used for the smooth long-range component (e.g. FftPoisson).

Trait Implementations

impl PoissonSolver for RangeSeparatedPoisson

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

Solve for the gravitational potential by combining long-range (inner solver) and short-range (direct summation within r_s) contributions.

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

Compute the gravitational acceleration via second-order finite differences on the potential.

fn set_progress(&mut self, _progress: Arc<StepProgress>)

Attach shared progress state for intra-phase cell-level reporting.