import type { CompositionType } from '../composition';
import * as math from '../math';
import type { RadiationType } from '../scattering';
import type { Crystal } from '../structure/index';
import type { PatternEntry, RecipPoint, XrdOptions, XrdPattern } from './index';
export declare const WAVELENGTHS: {
    readonly CuKa: 1.54184;
    readonly CuKa2: 1.54439;
    readonly CuKa1: 1.54056;
    readonly CuKb1: 1.39222;
    readonly MoKa: 0.71073;
    readonly MoKa2: 0.71359;
    readonly MoKa1: 0.7093;
    readonly MoKb1: 0.63229;
    readonly CrKa: 2.291;
    readonly CrKa2: 2.29361;
    readonly CrKa1: 2.2897;
    readonly CrKb1: 2.08487;
    readonly FeKa: 1.93735;
    readonly FeKa2: 1.93998;
    readonly FeKa1: 1.93604;
    readonly FeKb1: 1.75661;
    readonly CoKa: 1.79026;
    readonly CoKa2: 1.79285;
    readonly CoKa1: 1.78896;
    readonly CoKb1: 1.63079;
    readonly AgKa: 0.560885;
    readonly AgKa2: 0.563813;
    readonly AgKa1: 0.559421;
    readonly AgKb1: 0.497082;
};
export type RadiationKey = keyof typeof WAVELENGTHS;
export declare function require_positive(name: string, value: number, unit?: string): number;
export declare function electron_wavelength(voltage_kv: number): number;
export declare function resolve_wavelength(radiation: RadiationType, wavelength: number | RadiationKey | undefined, accelerating_voltage: number | undefined): number;
type LaueBound = {
    zone_axis: math.Vec3;
    max_laue: number;
};
export declare function enumerate_reciprocal_points(recip_rows: math.Matrix3x3, direct_rows: math.Matrix3x3, max_radius: number, min_radius: number, laue_bound?: LaueBound): RecipPoint[];
export declare function structure_factors_squared(structure: Crystal, radiation: RadiationType, debye_waller_factors: CompositionType, reflections: readonly RecipPoint[]): Float64Array;
export declare function compute_xrd_pattern(structure: Crystal, options?: XrdOptions): XrdPattern;
export declare function add_xrd_pattern(content: string | ArrayBufferLike, filename: string, wavelength: number | null, // Probe wavelength in Angstrom for structure-based calculation
radiation?: RadiationType): Promise<PatternEntry>;
export {};