Struct SdfGrid3D 

pub struct SdfGrid3D {
    pub nx: usize,
    pub ny: usize,
    pub nz: usize,
    pub min_corner: [f64; 3],
    pub voxel_size: f64,
    pub data: Vec<f64>,
}

3D voxel grid storing signed distance values.

Supports construction from analytic SDFs, trilinear interpolation, and gradient estimation.

Fields

nx: usize

Grid resolution along X.

ny: usize

Grid resolution along Y.

nz: usize

Grid resolution along Z.

min_corner: [f64; 3]

Minimum corner of the grid bounding box.

voxel_size: f64

Voxel size.

data: Vec<f64>

Flat (x, y, z) storage: index = x + nx*(y + ny*z).

Implementations

impl SdfGrid3D

pub fn new( nx: usize, ny: usize, nz: usize, min_corner: [f64; 3], voxel_size: f64, ) -> Self

Create an empty SDF grid.

pub fn from_sdf<F: Fn([f64; 3]) -> f64>( nx: usize, ny: usize, nz: usize, min_corner: [f64; 3], voxel_size: f64, f: F, ) -> Self

Fill the grid from an analytic SDF function.

pub fn index(&self, ix: usize, iy: usize, iz: usize) -> usize

Get flat index.

pub fn voxel_center(&self, ix: usize, iy: usize, iz: usize) -> [f64; 3]

World position of voxel center (ix, iy, iz).

pub fn interpolate(&self, p: [f64; 3]) -> f64

Trilinear interpolation of SDF value at world position p.

pub fn gradient(&self, p: [f64; 3]) -> [f64; 3]

Gradient at world position via trilinear interpolation.

pub fn get(&self, ix: usize, iy: usize, iz: usize) -> f64

Get value at voxel (ix, iy, iz).

pub fn set(&mut self, ix: usize, iy: usize, iz: usize, v: f64)

Set value at voxel (ix, iy, iz).

Trait Implementations

impl Clone for SdfGrid3D

fn clone(&self) -> SdfGrid3D

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SdfGrid3D

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

Formats the value using the given formatter.