Struct SpringBuilder 

pub struct SpringBuilder<Value> { /* private fields */ }

Unvalidated spring configuration; SpringBuilder::build reports invalid parameters.

Implementations

impl<Value> SpringBuilder<Value>

pub fn mass(self, mass: f64) -> Self

Sets mass, which must be finite and positive.

pub fn stiffness(self, stiffness: f64) -> Self

Sets stiffness, which must be finite and positive.

pub fn damping(self, damping: f64) -> Self

Sets damping, which must be finite and strictly positive. Zero has no finite settling time.

pub fn initial_velocity(self, velocity: f64) -> Self

Sets finite normalized velocity towards the target; negative moves away. Units are endpoint distances per second, not pixels per second.

pub fn settling_threshold(self, threshold: f64) -> Self

Sets a finite relative displacement-envelope threshold strictly between zero and one. This is not a pixel tolerance or a velocity threshold.

pub fn build(self) -> Result<Spring<Value>, ValidationError>

Validates the configuration and computes the finite response.

Trait Implementations

impl<Value: Clone> Clone for SpringBuilder<Value>

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<Value: Debug> Debug for SpringBuilder<Value>

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

Formats the value using the given formatter.