Struct AlphaShape 

pub struct AlphaShape {
    pub points: Array2<f64>,
    pub alpha: f64,
    pub edges: Vec<(usize, usize)>,
    pub triangles: Vec<(usize, usize, usize)>,
}

Alpha shape representation for point cloud analysis

Alpha shapes provide a way to compute non-convex boundaries around a set of points, controlled by the alpha parameter.

Fields

points: Array2<f64>

Points defining the alpha shape

alpha: f64

Alpha parameter controlling shape tightness

edges: Vec<(usize, usize)>

Boundary edges of the alpha shape

triangles: Vec<(usize, usize, usize)>

Triangles in the alpha shape (if applicable)

Implementations

impl AlphaShape

pub fn new(points: &ArrayView2<'_, f64>, alpha: f64) -> SpatialResult<Self>

Create a new alpha shape from a set of points

Arguments

• points - Input points as a 2D array
• alpha - Alpha parameter controlling shape tightness

Returns

• Result containing the computed alpha shape

pub fn num_points(&self) -> usize

Get the number of points in the alpha shape

pub fn num_edges(&self) -> usize

Get the number of edges in the alpha shape boundary

pub fn num_triangles(&self) -> usize

Get the number of triangles in the alpha shape

pub fn contains_point(&self, point: &ArrayView1<'_, f64>) -> bool

Check if a point is inside the alpha shape

Arguments

• point - Point to test

Returns

• True if the point is inside the alpha shape

pub fn area(&self) -> f64

Compute the area/volume of the alpha shape

Returns

• Area (2D) or volume (3D) of the alpha shape

Trait Implementations

impl Clone for AlphaShape

fn clone(&self) -> AlphaShape

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for AlphaShape

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

Formats the value using the given formatter.