import type { Vec2, Vec4 } from '../../math';
import type { RefLine, RefLineValue } from './types';
export type IndexedRefLine = RefLine & {
    idx: number;
};
export declare const index_ref_lines: (ref_lines: RefLine[] | undefined) => IndexedRefLine[];
export interface RefLinesByZIndex {
    below_grid: IndexedRefLine[];
    below_lines: IndexedRefLine[];
    below_points: IndexedRefLine[];
    above_all: IndexedRefLine[];
}
export declare function group_ref_lines_by_z(lines: IndexedRefLine[]): RefLinesByZIndex;
export declare function normalize_value(value: RefLineValue): number;
export declare const normalize_point: (point: [RefLineValue, RefLineValue]) => Vec2;
export declare function resolve_line_endpoints(ref_line: RefLine, bounds: {
    x_min: number;
    x_max: number;
    y_min: number;
    y_max: number;
}, scales: {
    x_scale: (val: number) => number;
    x2_scale?: (val: number) => number;
    y_scale: (val: number) => number;
    y2_scale?: (val: number) => number;
}): Vec4 | null;
interface AnnotationPosition {
    x: number;
    y: number;
    text_anchor: `start` | `middle` | `end`;
    dominant_baseline: `auto` | `middle` | `hanging`;
    rotation?: number;
}
export declare function calculate_annotation_position(x1: number, y1: number, x2: number, y2: number, annotation: {
    position?: `start` | `center` | `end`;
    side?: `above` | `below` | `left` | `right`;
    offset?: {
        x?: number;
        y?: number;
    };
    gap?: number;
    edge_padding?: number;
    rotate?: boolean;
}): AnnotationPosition;
export interface Scene3DParams {
    scene_x: number;
    scene_y: number;
    scene_z: number;
    x_range: Vec2;
    y_range: Vec2;
    z_range: Vec2;
}
export declare const span_or: (span: [number | null, number | null] | undefined, range: Vec2) => Vec2;
export declare function normalize_to_scene(value: number, [min_val, max_val]: Vec2, scene_size: number): number;
export declare function create_to_threejs(params: Scene3DParams): (user_x: number, user_y: number, user_z: number) => {
    x: number;
    y: number;
    z: number;
};
export {};