Struct VerletIntegrator 

pub struct VerletIntegrator;

Störmer-Verlet symplectic integrator.

Second-order, symplectic method with excellent energy conservation. Error is O(h²) but energy oscillates around true value without drift.

Algorithm:

q_{n+1/2} = q_n + (h/2) * v_n
v_{n+1}   = v_n + h * a(q_{n+1/2})
q_{n+1}   = q_{n+1/2} + (h/2) * v_{n+1}

Implementations

impl VerletIntegrator

pub const fn new() -> Self

Create a new Verlet integrator.

Trait Implementations

impl Clone for VerletIntegrator

fn clone(&self) -> VerletIntegrator

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for VerletIntegrator

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

Formats the value using the given formatter.

impl Default for VerletIntegrator

fn default() -> VerletIntegrator

Returns the “default value” for a type.

impl Integrator for VerletIntegrator

fn step( &self, state: &mut SimState, force_field: &dyn ForceField, dt: f64, ) -> SimResult<()>

Step the state forward by one timestep.

fn error_order(&self) -> u32

Get the error order of this integrator.

fn is_symplectic(&self) -> bool

Check if integrator is symplectic (preserves phase space volume).