import { Box } from '../common/geometry';
import RawData from '../common/RawData';
import { OrientationString } from './section-util';
import { Vector3 } from 'three';
/**
 * Scans all the voxels in the given volume and
 * determines the minimum bounding box that contains all the non-zero voxels.
 * @param volume The volume to scan over.
 * @param snap If this is set true and the volume is in binary format,
 *    the x-size will be normalized to the multiple of 8.
 * @return The bounding box measured in the given volume's coordinate.
 */
export declare function scanBoundingBox(volume: RawData, snap?: boolean): Box | null;
/**
 * Fill all voxels with the given value when it intersects with the line segment
 * specified by the two points.
 * Voxels are filled when the line only "glances" them.
 * TODO: Introduce edge-overflow detection for all directions to reduce unnecessary calls to writePixelAt
 */
export declare function draw3DLine(volume: RawData, p0: Vector3, // offset (not mm!)
p1: Vector3, // offset (not mm!)
value?: number): void;
/**
 * Performs a flood-fill on a given orthogonal MPR section of the volume.
 * @param volume The target volume to fill.
 * @param center The starting point to start filling.
 * @param orientation The orientation of the orthogonal MPR section.
 * @return The number of voxels affected (filled).
 */
export declare function floodFillOnSlice(volume: RawData, center: Vector3, orientation: OrientationString): number;