Struct spade::Barycentric

pub struct Barycentric<'a, T>
where
    T: Triangulation,
{ /* private fields */ }

Implements methods related to barycentric interpolation.

Created by calling crate::FloatTriangulation::barycentric.

Refer to the documentation of NaturalNeighbor for an overview of different interpolation methods.

Implementations

impl<'a, T> Barycentric<'a, T>

where T: Triangulation, <T::Vertex as HasPosition>::Scalar: Float,

pub fn get_weights( &self, position: Point2<<T::Vertex as HasPosition>::Scalar>, result: &mut Vec<(FixedVertexHandle, <T::Vertex as HasPosition>::Scalar)> )

Returns the barycentric coordinates and the respective vertices for a given query position.

The resulting coordinates and vertices are stored within the given result vec`` to prevent unneeded allocations. result` will be cleared initially.

The number of returned elements depends on the query positions location:

• result will be empty if the query position lies outside of the triangulation’s convex hull
• result will contain a single element (with weight 1.0) if the query position lies exactly on a vertex
• result will contain two vertices if the query point lies exactly on any edge of the triangulation.
• result will contain exactly three elements if the query point lies on an inner face of the triangulation.

pub fn interpolate<I>( &self, i: I, position: Point2<<T::Vertex as HasPosition>::Scalar> ) -> Option<<T::Vertex as HasPosition>::Scalar>

where I: Fn(VertexHandle<'_, T::Vertex, T::DirectedEdge, T::UndirectedEdge, T::Face>) -> <T::Vertex as HasPosition>::Scalar,

Performs barycentric interpolation on this triangulation at a given position.

Returns None for any value outside the triangulation’s convex hull. The value to interpolate is given by the i parameter.

Refer to NaturalNeighbor for a comparison with other interpolation methods.