import type { AABB } from '@antv/g';
import type { Point, PointObject } from '../types';
import type { LineSegment } from './line';
/**
* 将对象坐标转换为数组坐标
* Convert object coordinates to array coordinates
* @param point - 对象坐标 | object coordinates
* @returns 数组坐标 | array coordinates
*/
export declare function parsePoint(point: PointObject): Point;
/**
* 将数组坐标转换为对象坐标
*
* Convert array coordinates to object coordinates
* @param point - 数组坐标 | array coordinates
* @returns 对象坐标 | object coordinates
*/
export declare function toPointObject(point: Point): PointObject;
/**
* 根据 X 轴坐标排序
* Sort by X-axis coordinates
* @param points - 点集 | point set
* @returns 排序后的点集 | sorted point set
*/
export declare function sortByX(points: Point[]): Point[];
/**
* 点集去重
*
* Deduplicate point set
* @param points - 点集 | pointset
* @returns 去重后的点集 | deduplicated pointset
*/
export declare function deduplicate(points: Point[]): Point[];
/**
* 对点格式化,精确到 `digits` 位的数字
*
* Round the point to the given precision
* @param point - 要舍入的点 | the point to round
* @param digits - 小数点后的位数 | the number of digits after the decimal point
* @returns 舍入后的点 | the rounded point
*/
export declare function round(point: Point, digits?: number): Point;
/**
* 移动点,将点朝向参考点移动一定的距离
*
* Move `p` point along the line starting from `ref` to this point by a certain `distance`
* @param p - 要移动的点 | the point to move
* @param ref - 参考点 | the reference point
* @param distance - 移动的距离 | the distance to move
* @param reverse
* @returns 移动后的点 | the moved point
*/
export declare function moveTo(p: Point, ref: Point, distance: number, reverse?: boolean): Point;
/**
* 判断两个点是否在同一水平线上
*
* whether two points are on the same horizontal line
* @param p1 - 第一个点 | the first point
* @param p2 - 第二个点 | the second point
* @returns 返回两个点是否在同一水平线上 | is horizontal or not
*/
export declare function isHorizontal(p1: Point, p2: Point): boolean;
/**
* 判断两个点是否在同一垂直线上
*
* whether two points are on the same vertical line
* @param p1 - 第一个点 | the first point
* @param p2 - 第二个点 | the second point
* @returns 返回两个点是否在同一垂直线上 | is vertical or not
*/
export declare function isVertical(p1: Point, p2: Point): boolean;
/**
* 判断两个点是否正交,即是否在同一水平线或垂直线上
*
* Judges whether two points are orthogonal, that is, whether they are on the same horizontal or vertical line
* @param p1 - 第一个点 | the first point
* @param p2 - 第二个点 | the second point
* @returns 是否正交 | whether orthogonal or not
*/
export declare function isOrthogonal(p1: Point, p2: Point): boolean;
/**
* 判断是否三点共线
*
* Judge whether three points are collinear
* @param p1 - 第一个点 | the first point
* @param p2 - 第二个点 | the second point
* @param p3 - 第三个点 | the third point
* @returns 是否三点共线 | whether three points are collinear
*/
export declare function isCollinear(p1: Point, p2: Point, p3: Point): boolean;
/**
* 计算一个点相对于另一个点的中心对称点
*
* Calculate the center symmetric point of a point relative to another point
* @param p - 要计算的点 | the point to calculate
* @param center - 中心点 | the center point
* @returns 中心对称点 | the center symmetric point
*/
export declare function getSymmetricPoint(p: Point, center: Point): Point;
/**
* 获取从多边形中心到给定点的连线与多边形边缘的交点
*
* Gets the intersection point between the line from the center of a polygon to a given point and the polygon's edge
* @param p - 从多边形中心到多边形边缘的连线的外部点 | The point outside the polygon from which the line to the polygon's center is drawn
* @param center - 多边形中心 | the center of the polygon
* @param points - 多边形顶点 | the vertices of the polygon
* @param isRelativePos - 顶点坐标是否相对中心点 | whether the vertex coordinates are relative to the center point
* @param useExtendedLine - 是否使用延长线 | whether to use the extended line
* @returns 交点与相交线段 | intersection and intersecting line segment
*/
export declare function getPolygonIntersectPoint(p: Point, center: Point, points: Point[], isRelativePos?: boolean, useExtendedLine?: boolean): {
point: Point;
line?: LineSegment;
};
/**
* 判断点是否在多边形内部
*
* Whether point is inside the polygon (ray algo)
* @param point - 点 | point
* @param points - 多边形顶点 | polygon vertices
* @param start - 起始索引 | start index
* @param end - 结束索引 | end index
* @returns 是否在多边形内部 | whether inside the polygon
*/
export declare function isPointInPolygon(point: Point, points: Point[], start?: number, end?: number): boolean;
/**
* 获取给定点到矩形中心的连线与矩形边缘的交点
*
* Gets the intersection point between the line from the center of a rectangle to a given point and the rectangle's edge
* @param p - 从矩形中心到矩形边缘的连线的外部点 | The point outside the rectangle from which the line to the rectangle's center is drawn
* @param bbox - 矩形包围盒 | the bounding box of the rectangle
* @param useExtendedLine - 是否使用延长线 | whether to use the extended line
* @returns 交点 | intersection
*/
export declare function getRectIntersectPoint(p: Point, bbox: AABB, useExtendedLine?: boolean): Point;
/**
* 获取给定点到椭圆中心的连线与椭圆边缘的交点
*
* Gets the intersection point between the line from the center of an ellipse to a given point and the ellipse's edge
* @param p - 从椭圆中心到椭圆边缘的连线的外部点 | The point outside the ellipse from which the line to the ellipse's center is drawn
* The point outside the ellipse from which the line to the ellipse's center is drawn.
* @param bbox - 椭圆包围盒 | the bounding box of the ellipse
* @param useExtendedLine - 是否使用延长线 | whether to use the extended line
* @returns 交点 | intersection
*/
export declare function getEllipseIntersectPoint(p: Point, bbox: AABB, useExtendedLine?: boolean): Point;
/**
* 从两组点中找到距离最近的两个点
* @param group1 - 第一组点 | the first group of points
* @param group2 - 第二组点 | the second group of points
* @returns 距离最近的两个点 | the nearest two points
*/
export declare function findNearestPoints(group1: Point[], group2: Point[]): [Point, Point];
/**
* 从一组线段中找到距离给定点最近的线段
*
* Find the line segment closest to the given point from a group of line segments
* @param point - 给定点 | the given point
* @param lines - 一组线段 | a group of line segments
* @returns 距离最近的线段 | the nearest line segment
*/
export declare function findNearestLine(point: Point, lines: LineSegment[]): [Point, Point];
/**
* 获取点到线段的距离
*
* Get the distance from a point to a line segment
* @param point - 点 | the point
* @param line - 线段 | the line segment
* @returns 点到线段的距离 | the distance from the point to the line segment
*/
export declare function getDistanceToLine(point: Point, line: LineSegment): number;
/**
* 获取线段上距离给定点最近的点
*
* Get the point on the line segment closest to the given point
* @param point - 给定点 | the given point
* @param line - 线段 | the line segment
* @returns 线段上距离给定点最近的点 | the point on the line segment closest to the given point
*/
export declare function findNearestPointOnLine(point: Point, line: LineSegment): Point;
/**
* 获取点集的中心点
*
* Get the center point of a set of points
* @param points - 点集 | point set
* @returns 中心点 | center point
*/
export declare function centerOf(points: Point[]): Point;
/**
* 按顺时针或逆时针方向对点集排序
*
* Sort the point set in a clockwise or counterclockwise direction
* @param points - 点集 | point set
* @param clockwise - 是否顺时针 | whether clockwise
* @returns 排序后的点集 | sorted point set
*/
export declare function sortByClockwise(points: Point[], clockwise?: boolean): Point[];
/**
* 给定的起点和终点,返回一个由这两个点和它们的对角点组成的数组
* @param start - 起点 | start point
* @param end - 终点 | end point
* @returns 由这两个点和它们的对角点组成的数组 | an array consisting of these two points and their diagonal points
*/
export declare function getBoundingPoints(start: Point, end: Point): Point[];