Struct NaturalNeighborInterpolator 

pub struct NaturalNeighborInterpolator { /* private fields */ }

Natural Neighbor interpolator for scattered data

This interpolator uses the Sibson method to compute natural neighbor coordinates based on Voronoi diagrams and Delaunay triangulation.

Examples

use scirs2_spatial::interpolate::NaturalNeighborInterpolator;
use scirs2_core::ndarray::array;

// Create sample points and values
let points = array![
    [0.0, 0.0],
    [1.0, 0.0],
    [0.0, 1.0],
    [1.0, 1.0],
];
let values = array![0.0, 1.0, 2.0, 3.0];

// Create interpolator
let interp = NaturalNeighborInterpolator::new(&points.view(), &values.view()).expect("Operation failed");

// Interpolate at a point
let query_point = array![0.5, 0.5];
let result = interp.interpolate(&query_point.view()).expect("Operation failed");

// Should be close to 1.5 (average of the 4 corners)
assert!((result - 1.5).abs() < 1e-10);
// Note: This test is currently ignored due to implementation issues

Implementations

impl NaturalNeighborInterpolator

pub fn new( points: &ArrayBase<ViewRepr<&f64>, Dim<[usize; 2]>>, values: &ArrayBase<ViewRepr<&f64>, Dim<[usize; 1]>>, ) -> Result<NaturalNeighborInterpolator, SpatialError>

Create a new natural neighbor interpolator

Arguments

• points - Input points with shape (n_samples, n_dims)
• values - Input values with shape (n_samples,)

Returns

A new NaturalNeighborInterpolator

Errors

• If points and values have different lengths
• If points are not 2D
• If fewer than 3 points are provided
• If the Delaunay triangulation fails

pub fn interpolate( &self, point: &ArrayBase<ViewRepr<&f64>, Dim<[usize; 1]>>, ) -> Result<f64, SpatialError>

Interpolate at a single point

Arguments

• point - Query point with shape (n_dims,)

Returns

Interpolated value at the query point

Errors

• If the point dimensions don’t match the interpolator
• If the point is outside the convex hull of the input points

pub fn interpolate_many( &self, points: &ArrayBase<ViewRepr<&f64>, Dim<[usize; 2]>>, ) -> Result<ArrayBase<OwnedRepr<f64>, Dim<[usize; 1]>>, SpatialError>

Interpolate at multiple points

Arguments

• points - Query points with shape (n_queries, n_dims)

Returns

Interpolated values with shape (n_queries,)

Errors

• If the points dimensions don’t match the interpolator

Trait Implementations

impl Clone for NaturalNeighborInterpolator

fn clone(&self) -> NaturalNeighborInterpolator

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for NaturalNeighborInterpolator

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.