import type { ArrayNumber3 } from "@tolokoban/tgd";
export declare class Proximity {
    private readonly points;
    private readonly bbox;
    private readonly radius;
    private readonly stepsX;
    private readonly inverseStepsX;
    private readonly stepsY;
    private readonly inverseStepsY;
    private readonly stepsZ;
    private readonly inverseStepsZ;
    private readonly stepsYZ;
    private readonly grid;
    private readonly nextPoint;
    constructor(points: Float32Array, bbox: {
        min: ArrayNumber3;
        max: ArrayNumber3;
    }, radius: number);
    forEachNeighbor(pointIndex: number, action: (x: number, y: number, z: number, radius: number, distSquare: number) => unknown): void;
    private index;
}
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