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length_dyn

geometry_algorithm

Function length_dyn 

Source 
pub fn length_dyn<S, Cs>(g: &DynGeometry<S, Cs>) -> S
where
    S: CoordinateScalar,
    Cs: CoordinateSystem,
    Cs::Family: SameAs<CartesianFamily> + DefaultLength<Cs::Family>,
    CartesianLength: LengthStrategy<Linestring<Point<S, 2, Cs>>, Out = S>,
    DefaultLengthStrategy<Linestring<Point<S, 2, Cs>>>: LengthStrategy<Linestring<Point<S, 2, Cs>>, Out = S> + Default,
Expand description

Runtime-dispatched length.

Returns the polyline length for linear kinds (LineString, MultiLineString), the recursive sum of member lengths for a GeometryCollection, and 0 for every non-linear leaf kind — matching Boost’s contract (length.hpp:75-80, plus the geometry_collection_tag specialisation at :251-265).