import { Params } from '../../core/adaptor';
import { GeometryOptions, MappingOptions } from './base';
export interface AreaGeometryOptions extends GeometryOptions {
    /** x 轴字段 */
    readonly xField?: string;
    /** y 轴字段 */
    readonly yField?: string;
    /** 分组字段 */
    readonly seriesField?: string;
    /** 是否平滑 */
    readonly smooth?: boolean;
    /** area 图形的样式设置 */
    readonly area?: MappingOptions;
}
/**
 * area geometry 的配置处理
 * @param params
 */
export declare function area<O extends AreaGeometryOptions>(params: Params<O>): Params<O>;