Trait geo::algorithm::simplifyvw::SimplifyVW

pub trait SimplifyVW<T, Epsilon = T> {
    pub fn simplifyvw(&self, epsilon: &T) -> Self
    where
        T: Float;
}

Simplifies a geometry.

Polygons are simplified by running the algorithm on all their constituent rings. This may result in invalid Polygons, and has no guarantee of preserving topology. Multi* objects are simplified by simplifying all their constituent geometries individually.

An epsilon less than or equal to zero will return an unaltered version of the geometry.

Required methods

pub fn simplifyvw(&self, epsilon: &T) -> Self where
    T: Float, 

Returns the simplified representation of a geometry, using the Visvalingam-Whyatt algorithm

See here for a graphical explanation

Examples

use geo::algorithm::simplifyvw::SimplifyVW;
use geo::line_string;

let line_string = line_string![
    (x: 5.0, y: 2.0),
    (x: 3.0, y: 8.0),
    (x: 6.0, y: 20.0),
    (x: 7.0, y: 25.0),
    (x: 10.0, y: 10.0),
];

let simplified = line_string.simplifyvw(&30.0);

let expected = line_string![
    (x: 5.0, y: 2.0),
    (x: 7.0, y: 25.0),
    (x: 10.0, y: 10.0),
];

assert_eq!(expected, simplified);

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Implementors

impl<T> SimplifyVW<T, T> for LineString<T> where
    T: Float, 

pub fn simplifyvw(&self, epsilon: &T) -> LineString<T>

impl<T> SimplifyVW<T, T> for MultiLineString<T> where
    T: Float, 

pub fn simplifyvw(&self, epsilon: &T) -> MultiLineString<T>

impl<T> SimplifyVW<T, T> for MultiPolygon<T> where
    T: Float, 

pub fn simplifyvw(&self, epsilon: &T) -> MultiPolygon<T>

impl<T> SimplifyVW<T, T> for Polygon<T> where
    T: Float, 

pub fn simplifyvw(&self, epsilon: &T) -> Polygon<T>

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