[−][src]Trait geo::algorithm::simplifyvw::SimplifyVwIdx

pub trait SimplifyVwIdx<T, Epsilon = T> {
    fn simplifyvw_idx(&self, epsilon: &T) -> Vec<usize>
    where
        T: Float;
}

Simplifies a geometry, returning the retained indices of the output

This operation uses the Visvalingam-Whyatt algorithm, and does not guarantee that the returned geometry is valid.

Required methods

fn simplifyvw_idx(&self, epsilon: &T) -> Vec<usize> 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::SimplifyVwIdx;
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_idx(&30.0);

let expected = vec![
    0_usize,
    3_usize,
    4_usize,
];

assert_eq!(expected, simplified);
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Implementors

impl<T> SimplifyVwIdx<T, T> for LineString<T> where
    T: Float, [src]

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