import type { Vec2 } from '../math';
import type { XrdPattern } from './index';
export type BroadeningParams = {
    U: number;
    V: number;
    W: number;
    shape_factor: number;
};
export declare const DEFAULT_BROADENING: BroadeningParams;
export declare function caglioti_fwhm(two_theta: number, // Angle in degrees (2θ)
U: number, // Caglioti parameter U
V: number, // Caglioti parameter V
W: number): number;
export declare function pseudo_voigt(x: number, // Position
x0: number, // Peak center
fwhm: number, // Full Width at Half Maximum
eta: number): number;
export declare function compute_broadened_pattern(pattern: XrdPattern, // Discrete XRD pattern (peaks)
params: BroadeningParams, // Broadening parameters (U, V, W, shape_factor)
range: Vec2, // Angular range [min, max] in degrees
step_size?: number): XrdPattern;