Struct Dash 

pub struct Dash {
    pub intervals: Vec<f32>,
    pub phase: f32,
}

A dash pattern: alternating drawn and skipped lengths, and where to start.

Fields

intervals: Vec<f32>

Alternating drawn and skipped lengths, starting with a drawn one.

In the same space the path is in, so a pattern travels through the canvas transform with the geometry rather than staying fixed on screen.

phase: f32

How far into the pattern the path starts.

Wrapped into one period, so any value is meaningful and an animation can simply keep adding to it.

Implementations

impl Dash

pub fn new(intervals: Vec<f32>, phase: f32) -> Self

pub fn is_usable(&self) -> bool

Whether this pattern describes something that can be walked.

A pattern of nothing, of negative lengths, or of lengths that sum to zero has no period to advance through, and walking one would not terminate. Such a pattern is treated as no pattern at all: the path is drawn whole, which is the one behavior that cannot surprise anybody who got here by computing an interval that came out zero.

Trait Implementations

impl Clone for Dash

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Dash

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

Formats the value using the given formatter.

impl PartialEq for Dash

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Dash