import type { DisplayObjectConfig } from '@antv/g';
import type { PathArray } from '@antv/util';
import type { Point } from '../../types';
import type { BaseEdgeStyleProps } from './base-edge';
import { BaseEdge } from './base-edge';
/**
 * <zh/> 三次贝塞尔曲线样式配置项
 *
 * <en/> Cubic Bezier curve style properties
 */
export interface CubicStyleProps extends BaseEdgeStyleProps {
    /**
     * <zh/> 控制点数组，用于定义曲线的形状。如果不指定，将会通过 `curveOffset` 和 `curvePosition` 来计算控制点
     *
     * <en/> Control points. Used to define the shape of the curve. If not specified, it will be calculated using `curveOffset` and `curvePosition`.
     */
    controlPoints?: [Point, Point];
    /**
     * <zh/> 控制点在两端点连线上的相对位置，范围为`0-1`
     *
     * <en/> The relative position of the control point on the line, ranging from `0-1`
     * @defaultValue 0.5
     */
    curvePosition?: number | [number, number];
    /**
     * <zh/> 控制点距离两端点连线的距离，可理解为控制边的弯曲程度
     *
     * <en/> The distance of the control point from the line
     * @defaultValue 20
     */
    curveOffset?: number | [number, number];
}
type ParsedCubicStyleProps = Required<CubicStyleProps>;
/**
 * <zh/> 三次贝塞尔曲线
 *
 * <en/> Cubic Bezier curve
 */
export declare class Cubic extends BaseEdge {
    static defaultStyleProps: Partial<CubicStyleProps>;
    constructor(options: DisplayObjectConfig<CubicStyleProps>);
    /**
     * @inheritdoc
     */
    protected getKeyPath(attributes: ParsedCubicStyleProps): PathArray;
    protected getControlPoints(sourcePoint: Point, targetPoint: Point, curvePosition: [number, number], curveOffset: [number, number], controlPoints?: [Point, Point]): [Point, Point];
}
export {};