/**
 * Geometry utility functions
 * Helper functions for working with cubes, meshes, groups, and bones
 */
import { Cube } from './cube';
import { Mesh } from './mesh';
import { Group } from './group';
import { OutlinerElement } from './outliner_element';
import { Vector3 } from '../modeling/transform';
/**
 * Get all children recursively from a group
 */
export declare function getAllChildren(group: Group): OutlinerElement[];
/**
 * Get all cubes from a group (recursive)
 */
export declare function getAllCubes(group: Group): Cube[];
/**
 * Get all meshes from a group (recursive)
 */
export declare function getAllMeshes(group: Group): Mesh[];
/**
 * Calculate bounding box for a cube
 */
export declare function getCubeBoundingBox(cube: Cube): {
    min: Vector3;
    max: Vector3;
    size: Vector3;
};
/**
 * Calculate center point of a cube
 */
export declare function getCubeCenter(cube: Cube): Vector3;
/**
 * Calculate bounding box for a mesh
 */
export declare function getMeshBoundingBox(mesh: Mesh): {
    min: Vector3;
    max: Vector3;
    size: Vector3;
};
/**
 * Calculate center point of a mesh
 */
export declare function getMeshCenter(mesh: Mesh): Vector3;
/**
 * Calculate bounding box for a group (including all children)
 */
export declare function getGroupBoundingBox(group: Group): {
    min: Vector3;
    max: Vector3;
    size: Vector3;
};
/**
 * Calculate center point of a group
 */
export declare function getGroupCenter(group: Group): Vector3;
/**
 * Get cube size (accounting for stretch)
 */
export declare function getCubeSize(cube: Cube, axis?: 0 | 1 | 2): number | Vector3;
/**
 * Check if a point is inside a cube
 */
export declare function isPointInCube(cube: Cube, point: Vector3): boolean;
/**
 * Get cube volume
 */
export declare function getCubeVolume(cube: Cube): number;
/**
 * Get mesh volume (approximate, using bounding box)
 */
export declare function getMeshVolume(mesh: Mesh): number;
/**
 * Get total volume of all elements in a group
 */
export declare function getGroupVolume(group: Group): number;
/**
 * Find parent group of an element
 */
export declare function findParentGroup(element: OutlinerElement, groups: Group[]): Group | null;
/**
 * Get depth of element in hierarchy
 */
export declare function getElementDepth(element: OutlinerElement, groups: Group[]): number;
/**
 * Get all parent groups of an element
 */
export declare function getAllParentGroups(element: OutlinerElement, groups: Group[]): Group[];
/**
 * Check if element is descendant of group
 */
export declare function isDescendantOf(element: OutlinerElement, group: Group): boolean;
/**
 * Count elements in group
 */
export declare function countElements(group: Group): {
    cubes: number;
    meshes: number;
    groups: number;
    total: number;
};
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