/**
 * The no-data basemap.
 *
 * A map with geometry and no series must still draw. "Show me the countries" is
 * a normal request (a locator map, a backdrop for markers, the first thing anyone
 * tries), and rendering an empty container for it would be an obvious defect.
 *
 * This implements the same surface the real series expose, so the renderer,
 * hover, selection, tooltip and accessibility paths need no special-casing for
 * the series-less case.
 *
 * @module series/BaseFeatures
 */
import type { NormalizedFeature, SeriesLabelOptions, StrokeOptions } from '../types';
export interface BaseFeaturesConfig {
    name?: string;
    stroke?: StrokeOptions;
    opacity?: number;
    fill?: string;
    /** Present so the basemap can be treated interchangeably with a real series. */
    labels?: SeriesLabelOptions;
}
export declare class BaseFeatures {
    static readonly type: "base";
    static readonly kind: "features";
    readonly type: "base";
    readonly kind: "features";
    readonly id = "base";
    readonly index = 0;
    readonly config: BaseFeaturesConfig;
    readonly fill: string;
    readonly warnings: string[];
    readonly values: Map<number, number | null>;
    readonly join: null;
    readonly mutedClasses: Set<number>;
    readonly scale: {
        nullColor: string;
        nullLabel: string;
        continuous: boolean;
        classes: number;
        domain: [number, number];
        classIndex: () => number;
        color: () => string;
        legendItems: () => never[];
        gradientStops: () => never[];
    };
    constructor({ config, dark }: {
        config?: BaseFeaturesConfig;
        dark?: boolean;
    });
    valueFor(): null;
    datumFor(): undefined;
    fillFor(): string;
    hoverFill(color: string): string;
    /**
     * No texture on the basemap: it is a backdrop, and it carries no value to
     * encode. Takes the feature it ignores so the two feature series stay callable
     * through the same union.
     */
    paintFor(_feature?: NormalizedFeature): null;
    readonly painted = false;
    toggleClass(): boolean;
    legendTitle(): string | undefined;
    legendItems(): never[];
    describe(feature: NormalizedFeature): string;
    advise(): string[];
}
//# sourceMappingURL=BaseFeatures.d.ts.map