Struct Spring 

pub struct Spring { /* private fields */ }

Determines how an animation is used based on spring formula.

Implementations

impl Spring

pub fn new() -> Self

Creates a spring with all parameters zero.

pub fn with_values( mass: f64, stiffness: f64, damping: f64, initial_velocity: f64, ) -> Self

Creates a spring with the given parameters.

pub fn parse(value: &str) -> Result<Spring, FormatError>

Parses a spring from four numbers: mass, stiffness, damping and initial velocity.

pub fn mass(&self) -> f64

The spring mass.

pub fn set_mass(&self, value: f64)

pub fn stiffness(&self) -> f64

The spring stiffness.

pub fn set_stiffness(&self, value: f64)

pub fn damping(&self) -> f64

The spring damping.

pub fn set_damping(&self, value: f64)

pub fn initial_velocity(&self) -> f64

The spring initial velocity.

pub fn set_initial_velocity(&self, value: f64)

pub fn get_spring_progress(&self, linear_progress: f64) -> f64

Calculates the spring progress from a linear progress.

Trait Implementations

impl Default for Spring

fn default() -> Self

Returns the “default value” for a type.

impl FromStr for Spring

type Err = FormatError

The associated error which can be returned from parsing.

fn from_str(s: &str) -> Result<Self, Self::Err>

Parses a string s to return a value of this type.

impl PartialEq for Spring

Compares by identity (reference equality), as the reference type this mirrors.

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

Equality operator ==.

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

Inequality operator !=.