Struct GrainStructure 

pub struct GrainStructure {
    pub grains: Vec<Grain>,
    pub system_size: Vector3<f64>,
}

A simplified grain structure based on nearest-neighbor assignment to randomly placed grain centers (Voronoi-like tessellation).

Fields

grains: Vec<Grain>

Individual grains with their properties.

system_size: Vector3<f64>

System size in each dimension [m].

Implementations

impl GrainStructure

pub fn generate( num_grains: usize, system_size: Vector3<f64>, mean_diameter: f64, diameter_spread: f64, seed: u64, ) -> Result<Self>

Generate a grain structure with num_grains randomly placed grain centers.

Each grain receives a random easy axis and a diameter drawn from a uniform distribution around mean_diameter with spread diameter_spread.

Arguments

• num_grains - Number of grains to generate
• system_size - Physical dimensions of the simulation box [m]
• mean_diameter - Mean grain diameter [m]
• diameter_spread - Half-width of the uniform diameter distribution [m]
• seed - PRNG seed

Errors

Returns an error if parameters are non-positive.

pub fn nearest_grain(&self, point: Vector3<f64>) -> Option<usize>

Assign a spatial point (in normalized coordinates [0,1)³) to the nearest grain.

Returns the grain index or None if the structure has no grains.

Trait Implementations

impl Clone for GrainStructure

fn clone(&self) -> GrainStructure

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for GrainStructure

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

Formats the value using the given formatter.