srfm::stream::SpacetimeManifold Class Reference

Minkowski interval computer for sequential Lorentz-boosted events. More...

#include <spacetime_manifold.hpp>

Public Member Functions
	SpacetimeManifold (double epsilon=1e-6) noexcept
	Construct with a custom lightlike tolerance.
ManifoldResult	update (double t_prime, double x_prime) noexcept
	Record a new transformed event and compute the interval from the last.
bool	has_previous () const noexcept
	Whether at least one event has been ingested.
double	prev_t_prime () const noexcept
	Previous boosted time coordinate.
double	prev_x_prime () const noexcept
	Previous boosted space coordinate.
double	epsilon () const noexcept
	Lightlike tolerance ε.
void	reset () noexcept
	Reset all state as if no events have been seen.

Static Public Member Functions
static double	interval (double dt, double dx) noexcept
	Compute the Minkowski interval for an arbitrary pair of events.
static Regime	classify (double ds2, double epsilon=1e-6) noexcept
	Classify a precomputed interval value.

Detailed Description

Minkowski interval computer for sequential Lorentz-boosted events.

SpacetimeManifold manifold;
auto result = manifold.update(ev.t_prime, ev.x_prime);
// result.regime → TIMELIKE / LIGHTLIKE / SPACELIKE
// result.signal → signed sqrt of interval

Definition at line 72 of file spacetime_manifold.hpp.

Constructor & Destructor Documentation

SpacetimeManifold()

srfm::stream::SpacetimeManifold::SpacetimeManifold ( double  epsilon = 1e-6 )

inlineexplicitnoexcept

Construct with a custom lightlike tolerance.

Parameters

epsilon

Absolute |Δs²| threshold for LIGHTLIKE classification. Defaults to 1e-6 (appropriate for normalised z-score coords).

Definition at line 80 of file spacetime_manifold.hpp.

Member Function Documentation

classify()

static Regime srfm::stream::SpacetimeManifold::classify ( double  ds2, double  epsilon = 1e-6  )

inlinestaticnoexcept

Classify a precomputed interval value.

Parameters

ds2	Minkowski interval value.
epsilon	Lightlike tolerance.

Returns

Regime classification.

Note

noexcept.

Definition at line 190 of file spacetime_manifold.hpp.

epsilon()

double srfm::stream::SpacetimeManifold::epsilon ( ) const

inlinenoexcept

Lightlike tolerance ε.

Definition at line 151 of file spacetime_manifold.hpp.

has_previous()

bool srfm::stream::SpacetimeManifold::has_previous ( ) const

inlinenoexcept

Whether at least one event has been ingested.

Definition at line 142 of file spacetime_manifold.hpp.

interval()

static double srfm::stream::SpacetimeManifold::interval ( double  dt, double  dx  )

inlinestaticnoexcept

Compute the Minkowski interval for an arbitrary pair of events.

Does not mutate any state.

Parameters

dt	Time separation Δt'.
dx	Space separation Δx'.

Returns

Minkowski interval Δs² = Δt'² − Δx'².

Note

noexcept — pure arithmetic.

Definition at line 178 of file spacetime_manifold.hpp.

prev_t_prime()

double srfm::stream::SpacetimeManifold::prev_t_prime ( ) const

inlinenoexcept

Previous boosted time coordinate.

Definition at line 145 of file spacetime_manifold.hpp.

prev_x_prime()

double srfm::stream::SpacetimeManifold::prev_x_prime ( ) const

inlinenoexcept

Previous boosted space coordinate.

Definition at line 148 of file spacetime_manifold.hpp.

reset()

void srfm::stream::SpacetimeManifold::reset ( )

inlinenoexcept

Reset all state as if no events have been seen.

Preserves the configured epsilon.

Definition at line 160 of file spacetime_manifold.hpp.

update()

ManifoldResult srfm::stream::SpacetimeManifold::update ( double  t_prime, double  x_prime  )

inlinenoexcept

Record a new transformed event and compute the interval from the last.

On the first call (no previous event), returns LIGHTLIKE with signal = 0.

Parameters

t_prime	Boosted time coordinate from LorentzTransform.
x_prime	Boosted space coordinate from LorentzTransform.

Returns

ManifoldResult with ds2, regime, and signal for this step.

Note

noexcept.

Definition at line 97 of file spacetime_manifold.hpp.

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The documentation for this class was generated from the following file:

• include/srfm/stream/spacetime_manifold.hpp