import { TransformN } from '../math/transform.js';
import { VecN } from '../math/vecn.js';
import type { CellComplex } from './cell-complex.js';
/** Signed source-space or transformed-space limits along one unit direction. */
export interface CellComplexDirectionalBoundsN {
    /** Smallest signed vertex projection onto the normalized direction. */
    readonly min: number;
    /** Largest signed vertex projection onto the normalized direction. */
    readonly max: number;
}
/**
 * Projects every vertex of a cell complex onto a direction and returns the
 * closed interval containing those projections.
 *
 * The direction is normalized internally, so `min` and `max` are signed
 * distances in the same units as the source positions. For a normalized
 * `HyperplaneSlice4.normal`, this is exactly the offset interval over which
 * the convex hull can have a non-empty section. An optional transform makes
 * the interval describe the current world-space body rather than its authored
 * source pose.
 *
 * This is a vertex-hull bound. A disconnected or non-convex complex can have
 * empty sections inside the interval; the function never claims otherwise.
 */
export declare function cellComplexBoundsAlongDirectionN(complex: CellComplex, direction: VecN | ArrayLike<number>, transform?: TransformN): CellComplexDirectionalBoundsN;
/** Axis-aligned specialization of `cellComplexBoundsAlongDirectionN`. */
export declare function cellComplexBoundsAlongAxisN(complex: CellComplex, axis: number, transform?: TransformN): CellComplexDirectionalBoundsN;
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