Struct SimLogEntry 

pub struct SimLogEntry {
    pub timestep: u64,
    pub sim_time: f64,
    pub wall_time: f64,
    pub energy: f64,
    pub n_bodies: usize,
    pub custom: HashMap<String, f64>,
}

A single logged snapshot of simulation state at one timestep.

Fields

timestep: u64

Simulation timestep index (0-based).

sim_time: f64

Simulation time in seconds.

wall_time: f64

Wall-clock time in seconds since start.

energy: f64

Total mechanical energy at this step.

n_bodies: usize

Number of bodies/particles active at this step.

custom: HashMap<String, f64>

Arbitrary additional fields (name → value).

Implementations

impl SimLogEntry

pub fn new( timestep: u64, sim_time: f64, wall_time: f64, energy: f64, n_bodies: usize, ) -> Self

Create a new log entry with no custom fields.

pub fn insert(&mut self, key: impl Into<String>, value: f64)

Insert a custom field value.

pub fn get(&self, key: &str) -> Option<f64>

Retrieve a custom field value by name.

pub fn to_csv_row(&self, extra_keys: &[String]) -> String

Serialise this entry to a CSV row (timestep, sim_time, wall_time, energy, n_bodies, then sorted custom keys).

Trait Implementations

impl Clone for SimLogEntry

fn clone(&self) -> SimLogEntry

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SimLogEntry

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

Formats the value using the given formatter.

impl PartialEq for SimLogEntry

fn eq(&self, other: &SimLogEntry) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for SimLogEntry