import { type Vec3 } from '../math';
export type GizmoAxisKey = `x` | `y` | `z` | `nx` | `ny` | `nz`;
export type GizmoAxisStyle = {
    color?: string;
    labelColor?: string;
    opacity?: number;
    label?: string;
    hover?: {
        color?: string;
        labelColor?: string;
        opacity?: number;
    };
};
type GizmoAnchor = `top-left` | `top-right` | `bottom-left` | `bottom-right` | `fill`;
export type GizmoOptions = {
    visible?: boolean;
    placement?: GizmoAnchor;
    size?: number;
    offset?: {
        left?: number;
        right?: number;
        top?: number;
        bottom?: number;
    };
    animation_duration?: number;
    fade_duration?: number;
} & Partial<Record<GizmoAxisKey, GizmoAxisStyle>>;
type GizmoRect = {
    x: number;
    y: number;
    width: number;
    height: number;
};
export declare function gizmo_rect({ placement, size, offset }: GizmoOptions, width: number, height: number): GizmoRect;
export declare const responsive_gizmo_size: (width: number, height: number) => number;
export declare const GIZMO_AXES: readonly (readonly [GizmoAxisKey, Vec3, boolean])[];
export declare const GIZMO_DEFAULT_STYLES: Record<GizmoAxisKey, GizmoAxisStyle>;
export declare const GIZMO_LAYOUT: {
    readonly frustum: 1.5;
    readonly cam_distance: 4;
    readonly handle_radius: 0.2;
    readonly neg_handle_radius: 0.23;
    readonly axis_line_radius: 0.045;
    readonly label_scale: 0.46;
};
export {};