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Add len() and is_empty() to MultiPoint. #1109

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merged 3 commits into from
Nov 14, 2023
Merged

Add len() and is_empty() to MultiPoint. #1109

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7ff0da5
Add len to MultiPoint.
andriyDev Nov 13, 2023
d2b3688
Add is_empty to MultiPoint.
andriyDev Nov 13, 2023
3bebaaa
Add entry to geo/CHANGES.md for len and is_empty on MultiPoint.
andriyDev Nov 13, 2023
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16 changes: 12 additions & 4 deletions geo-types/src/geometry/multi_point.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -35,16 +35,16 @@ use core::iter::FromIterator;
pub struct MultiPoint<T: CoordNum = f64>(pub Vec<Point<T>>);

impl<T: CoordNum, IP: Into<Point<T>>> From<IP> for MultiPoint<T> {
/// Convert a single `Point` (or something which can be converted to a `Point`) into a
/// one-member `MultiPoint`
/// Convert a single `Point` (or something which can be converted to a
/// `Point`) into a one-member `MultiPoint`
fn from(x: IP) -> Self {
Self(vec![x.into()])
}
}

impl<T: CoordNum, IP: Into<Point<T>>> From<Vec<IP>> for MultiPoint<T> {
/// Convert a `Vec` of `Points` (or `Vec` of things which can be converted to a `Point`) into a
/// `MultiPoint`.
/// Convert a `Vec` of `Points` (or `Vec` of things which can be converted
/// to a `Point`) into a `MultiPoint`.
fn from(v: Vec<IP>) -> Self {
Self(v.into_iter().map(|p| p.into()).collect())
}
Expand Down Expand Up @@ -90,6 +90,14 @@ impl<T: CoordNum> MultiPoint<T> {
Self(value)
}

pub fn len(&self) -> usize {
self.0.len()
}

pub fn is_empty(&self) -> bool {
self.0.is_empty()
}

pub fn iter(&self) -> impl Iterator<Item = &Point<T>> {
self.0.iter()
}
Expand Down