Struct PySphSim 

pub struct PySphSim { /* private fields */ }

SPH particle simulation (simplified 3-D, poly6/spiky kernels).

Implementations

impl PySphSim

pub fn new(config: PySphConfig) -> Self

Create an empty SPH simulation.

pub fn add_particle(&mut self, pos: [f64; 3])

Add a particle at position [x, y, z] with zero velocity.

pub fn add_particle_block( &mut self, origin: [f64; 3], nx: usize, ny: usize, nz: usize, dx: f64, )

Add n particles arranged in a 3-D lattice starting at origin with spacing dx.

pub fn particle_count(&self) -> usize

Number of particles.

pub fn position(&self, i: usize) -> Option<[f64; 3]>

Get the position of particle i, or None if out of bounds.

pub fn velocity(&self, i: usize) -> Option<[f64; 3]>

Get the velocity of particle i, or None if out of bounds.

pub fn density(&self, i: usize) -> Option<f64>

Get the density of particle i, or None if out of bounds.

pub fn pressure(&self, i: usize) -> Option<f64>

Get the pressure of particle i, or None if out of bounds.

pub fn velocities_mut(&mut self) -> &mut Vec<[f64; 3]>

Mutable access to the velocity slice (for initial-condition setup).

pub fn smoothing_length(&self) -> f64

Smoothing length h.

pub fn rest_density(&self) -> f64

Rest density ρ₀.

pub fn particle_mass(&self) -> f64

Particle mass.

pub fn all_positions(&self) -> Vec<f64>

Return all positions as a flat Vecf64of[x, y, z]` triples.

pub fn all_velocities(&self) -> Vec<f64>

Return all velocities as a flat Vecf64of[vx, vy, vz]` triples.

pub fn time(&self) -> f64

Accumulated simulation time in seconds.

pub fn step(&mut self, dt: f64)

Advance the simulation by dt seconds.

Uses a simple WCSPH scheme:

1. Compute densities and pressures (poly6 kernel).
2. Compute pressure + viscosity forces (spiky/laplacian kernels).
3. Integrate with leapfrog.

Trait Implementations

impl Clone for PySphSim

fn clone(&self) -> PySphSim

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for PySphSim

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.