Function calculateEffectiveRadii

calculateEffectiveRadii(
    positions: ArrayLike<number>,
    radii: ArrayLike<number>,
    viewState: ViewState,
    config: EffectiveRadiusConfig,
    ndim: number,
): Float32Array
Calculate effective radii for points based on their distance from the slice hyperplane.

When an nD hypersphere of radius R is intersected by a hyperplane at distance D from its center, the resulting (n-1)D cross-section has radius: R_effective = √(R² - D²)

This calculation considers:
- Displayed dimensions: Points always extend fully (they're in the viewing plane)
- Non-displayed spatial dimensions: Apply the Pythagorean theorem
- Non-displayed discrete dimensions: Exact match required (zero radius if mismatch)
Parameters
- positions: ArrayLike<number>
  Original nD positions (any typed array, flattened)
- radii: ArrayLike<number>
  Original radii for each point (any typed array)
- viewState: ViewState
  Current slice position and display configuration
- config: EffectiveRadiusConfig
  Spatial extension configuration
- ndim: number
  Number of dimensions
Returns Float32Array
Array of effective radii for rendering (always Float32Array)
- Defined in src/data/points/effective-radius-calculator.ts:36