Struct FieldSampler 

pub struct FieldSampler {
    pub width: usize,
    pub height: usize,
    pub x_min: f32,
    pub x_max: f32,
    pub y_min: f32,
    pub y_max: f32,
    pub z: f32,
    pub forces: Vec<Vec3>,
    pub magnitudes: Vec<f32>,
}

Samples a field onto a 2D grid for visualization.

Fields

width: usize

height: usize

x_min: f32

x_max: f32

y_min: f32

y_max: f32

z: f32

forces: Vec<Vec3>

Sampled force vectors (flat array, row-major).

magnitudes: Vec<f32>

Implementations

impl FieldSampler

pub fn new(width: usize, height: usize, bounds: (f32, f32, f32, f32)) -> Self

pub fn sample(&mut self, field: &ForceField)

Sample the field at all grid points.

pub fn sample_composer(&mut self, composer: &FieldComposer)

Sample a composer at all grid points.

pub fn max_magnitude(&self) -> f32

Maximum magnitude seen in the last sample.

pub fn force_at_cell(&self, x: usize, y: usize) -> Vec3

Get the force at grid cell (x, y).

pub fn streamline(&self, start: Vec2, steps: usize, dt: f32) -> Vec<Vec2>

Compute normalized flow lines for visualization (streamline points).

pub fn to_rgba(&self) -> Vec<u8>

Render force vectors as a flat RGBA buffer (for debug textures).