import { type IGraphic, type IGroup, type EasingType } from '@visactor/vrender-core';
import { ACustomAnimate } from './custom-animate';
interface IAnimationParameters {
    width: number;
    height: number;
    group: IGroup;
    elementIndex: number;
    elementCount: number;
    view: any;
}
type TypeAnimation<T extends IGraphic> = (graphic: T, options: any, animationParameters: IAnimationParameters) => {
    from?: {
        [channel: string]: any;
    };
    to?: {
        [channel: string]: any;
    };
};
export interface IGrowAngleAnimationOptions {
    orient?: 'clockwise' | 'anticlockwise';
    overall?: boolean | number;
}
export declare const growAngleIn: TypeAnimation<IGraphic>;
export declare const growAngleOut: TypeAnimation<IGraphic>;
export declare class GrowAngleBase extends ACustomAnimate<Record<string, number>> {
    valid: boolean;
    _updateFunction: (ratio: number) => void;
    constructor(from: null, to: null, duration: number, easing: EasingType, params?: any);
    determineUpdateFunction(): void;
    deleteSelfAttr(key: string): void;
    updateStartAngle(ratio: number): void;
    updateEndAngle(ratio: number): void;
    updateAngle(ratio: number): void;
    onUpdate(end: boolean, ratio: number, out: Record<string, any>): void;
}
export declare class GrowAngleIn extends GrowAngleBase {
    onBind(): void;
}
export declare class GrowAngleOut extends GrowAngleBase {
    onBind(): void;
}
export {};