import type { Channel, ChartKey, ChartMark, ChartMarkMotionOptions, ChartNumericScale, ChartValue, OptionChannelOutput, VisualChannel } from './types.js';
export interface HexagonOptions<TDatum> extends ChartMarkMotionOptions<TDatum> {
    id?: string;
    x?: Channel<TDatum, ChartValue | null | undefined>;
    y?: Channel<TDatum, ChartValue | null | undefined>;
    z?: Channel<TDatum, ChartKey | null | undefined>;
    color?: Channel<TDatum, ChartKey | null | undefined>;
    key?: Channel<TDatum, ChartKey>;
    r?: number | Channel<TDatum, number | null | undefined>;
    rScale?: ChartNumericScale;
    fill?: VisualChannel<TDatum, string>;
    fillOpacity?: number;
    stroke?: VisualChannel<TDatum, string>;
    strokeOpacity?: number;
    strokeWidth?: number;
}
/** Draws pointy-topped, fixed-pixel hexagons at scaled x/y positions. */
export declare function hexagon<TDatum>(source: Iterable<TDatum>): ChartMark<TDatum, number, number>;
export declare function hexagon<TDatum, const TOptions extends HexagonOptions<TDatum> | undefined>(source: Iterable<TDatum>, options: TOptions): ChartMark<TDatum, OptionChannelOutput<TDatum, TOptions, 'x', number>, OptionChannelOutput<TDatum, TOptions, 'y', number>>;