Trait geo::algorithm::map_coords::TryMapCoords

pub trait TryMapCoords<T, NT> {
    type Output;
    fn try_map_coords(
        &self, 
        func: &Fn(&(T, T)) -> Result<(NT, NT), Error>
    ) -> Result<Self::Output, Error>
    where
        T: CoordinateType,
        NT: CoordinateType;
}

Map a fallible function over all the coordinates in a geometry, returning a Result

Associated Types

type Output

Required Methods

fn try_map_coords(
    &self,
    func: &Fn(&(T, T)) -> Result<(NT, NT), Error>
) -> Result<Self::Output, Error> where
    T: CoordinateType,
    NT: CoordinateType, 

Map a fallible function over all the coordinates in a geometry, returning a Result

Examples

use geo::Point;
use geo::algorithm::map_coords::TryMapCoords;

let p1 = Point::new(10., 20.);
let p2 = p1.try_map_coords(&|&(x, y)| Ok((x+1000., y*2.))).unwrap();

assert_eq!(p2, Point::new(1010., 40.));

Implementors

• impl<T: CoordinateType, NT: CoordinateType> TryMapCoords<T, NT> for Point<T> type Output = Point<NT>;

• impl<T: CoordinateType, NT: CoordinateType> TryMapCoords<T, NT> for Line<T> type Output = Line<NT>;

• impl<T: CoordinateType, NT: CoordinateType> TryMapCoords<T, NT> for LineString<T> type Output = LineString<NT>;

• impl<T: CoordinateType, NT: CoordinateType> TryMapCoords<T, NT> for Polygon<T> type Output = Polygon<NT>;

• impl<T: CoordinateType, NT: CoordinateType> TryMapCoords<T, NT> for MultiPoint<T> type Output = MultiPoint<NT>;

• impl<T: CoordinateType, NT: CoordinateType> TryMapCoords<T, NT> for MultiLineString<T> type Output = MultiLineString<NT>;

• impl<T: CoordinateType, NT: CoordinateType> TryMapCoords<T, NT> for MultiPolygon<T> type Output = MultiPolygon<NT>;

• impl<T: CoordinateType, NT: CoordinateType> TryMapCoords<T, NT> for Geometry<T> type Output = Geometry<NT>;

• impl<T: CoordinateType, NT: CoordinateType> TryMapCoords<T, NT> for GeometryCollection<T> type Output = GeometryCollection<NT>;