Type Alias PathMeasure

pub type PathMeasure = Handle<SkPathMeasure>;

Aliased Type

struct PathMeasure(/* private fields */);

Implementations

impl PathMeasure

Warning: Even if you pass in a PathMeasure with multiple contours, most of this struct’s functions, including length only return the value for the first contour on the path (which is why they aren’t const). You must exhaust PathMeasure::next_contour.

use skia_safe::{PathMeasure, Point, Path};
use std::f64::consts::PI;
let mut path = Path::circle((0., 0.), 10.0, None);
path.add_path(&Path::circle((100., 100.), 27.0, None), Point::default(), None);
let mut measure = PathMeasure::new(&path, false, None);
let mut lengths = vec![measure.length()];
while measure.next_contour() {
    lengths.push(measure.length());
}
assert_eq!(*lengths.first().unwrap() as i64, (2. * PI * 10.0) as i64);
assert_eq!(*lengths.get(1).unwrap() as i64, (2. * PI * 27.0) as i64);
eprintln!("Circle lengths: {:?}", &lengths);

pub fn new( path: &Path, force_closed: bool, res_scale: impl Into<Option<scalar>>, ) -> Self

pub fn from_path( path: &Path, force_closed: bool, res_scale: impl Into<Option<scalar>>, ) -> Self

👎Deprecated since 0.48.0: Use PathMeasure::new

pub fn set_path(&mut self, path: &Path, force_closed: bool) -> &mut Self

pub fn length(&mut self) -> scalar

pub fn pos_tan(&mut self, distance: scalar) -> Option<(Point, Vector)>

pub fn matrix( &mut self, distance: scalar, flags: impl Into<Option<MatrixFlags>>, ) -> Option<Matrix>

pub fn segment( &mut self, start_d: scalar, stop_d: scalar, start_with_move_to: bool, ) -> Option<Path>

pub fn is_closed(&mut self) -> bool

pub fn next_contour(&mut self) -> bool

pub fn current_measure(&self) -> &Option<ContourMeasure>

Trait Implementations

impl Debug for PathMeasure

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

Formats the value using the given formatter.

impl Default for PathMeasure

fn default() -> Self

Returns the “default value” for a type.