import type { EditableMesh as EditableMeshValue, ElementSelection } from "./types.ts";
export type V = readonly [number, number, number];
export interface MeshParts {
    readonly positions: number[];
    readonly faces: number[][];
    readonly useSmooth: number[];
    readonly sharp: Set<string>;
}
export declare function requireSelection(sel: ElementSelection, domain: "vertex" | "face" | "edge"): void;
export declare function faceVerts(em: EditableMeshValue, f: number): number[];
export declare function edgeVerts(em: EditableMeshValue, e: number): [number, number];
export declare function p(em: EditableMeshValue, v: number): V;
export declare function add(a: V, b: V, s?: number): V;
export declare function sub(a: V, b: V): V;
export declare function mul(a: V, s: number): V;
export declare function norm(a: V): V;
export declare function cross(a: V, b: V): V;
export declare function center(ps: V[]): V;
export declare function normal(ps: V[]): V;
export declare function key(a: V, b: V): string;
export declare function addTri(m: MeshParts, a: V, b: V, c: V, smooth?: number): number;
export declare function addQuad(m: MeshParts, a: V, b: V, c: V, d: V, smooth?: number): [number, number];
export declare function build(m: MeshParts): EditableMeshValue;
export declare function edgeSelectionOfFaces(em: EditableMeshValue, faces: readonly number[]): ElementSelection;
export declare function copyMesh(em: EditableMeshValue): MeshParts;
export declare function copyWithoutFaces(em: EditableMeshValue, drop: ReadonlySet<number>): MeshParts;
export declare function requireLoop(sel: ElementSelection): void;
export declare function loopVertices(em: EditableMeshValue, edges: readonly number[]): number[];
export declare function addFan(m: MeshParts, verts: readonly V[], smooth: number): number[];
export declare function range(a: number, b: number): number[];
export declare function tint(em: EditableMeshValue, faces: readonly number[]): void;
export declare function pos(a: Float32Array, v: number): V;
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