import { vec2 } from '../../../math-gl/vec2/vec2.type.js';
/**
 * Computes the intersection point of 2 lines (defined by 2 line segments), written in 'out'
 *  - if the lines are parallel => out[0] = NaN
 * @returns true if the lines are intersecting (not parallel or having the same 'a' and 'b')
 */
export declare function get_intersection_point_2d_of_line_2d_with_line_2d(out: vec2, a_x: number, a_y: number, b_x: number, b_y: number, c_x: number, c_y: number, d_x: number, d_y: number): boolean;