import type { EdgeData, NodeData } from '../types';
import type { AbstractNode } from '../types';
export * from './gpu';
/**
 * 校验边数据
 *
 * @param nodes
 */
export declare const isValidEdge: (nodes: NodeData[]) => (edge: EdgeData) => boolean;
/**
 * 获取文本的位置点
 *
 * @param {string} pathD 路径
 */
export declare function getTextPoint(pathD: string): {
    x: any;
    y: any;
};
/**
 * 获取文本的旋转角度
 *
 * @returns
 */
export declare const getRotate: (source: {
    x: number;
    y: number;
}, target: {
    x: number;
    y: number;
}) => number;
/**
 * 获取文本偏移量
 *
 * @param {Object} textPoint 字符定位
 * @param {Number} textRotate 边角度
 * @param {Number} offset 偏移量
 */
export declare function getTextTransform(textPoint: {
    x: number;
    y: number;
}, textRotate: number, offset?: number): string;
interface Rect {
    x: number;
    x2: number;
    y: number;
    y2: number;
}
interface Box {
    x: number;
    y: number;
    width: number;
    height: number;
}
/**
 * 计算包围盒
 *
 * @param box1
 * @param box2
 */
export declare const calcBoundsOfBoxes: (box1: Rect, box2: Rect) => {
    x: number;
    y: number;
    x2: number;
    y2: number;
};
/**
 * 转换包围盒到矩形
 *
 * @param x
 * @param y
 * @param width
 * @param height
 */
export declare const rectToBox: ({ x, y, width, height }: Box) => Rect;
/**
 * 转换矩形到包围盒
 *
 * @param x
 * @param y
 * @param x2
 * @param y2
 */
export declare const boxToRect: ({ x, y, x2, y2 }: Rect) => Box;
/**
 * 计算节点围成的矩形
 *
 * @param nodes
 */
export declare const calcRectOfNodes: (nodes: AbstractNode[]) => Box;
/**
 * 根据包围盒计算偏移量
 *
 * @param box
 * @param width
 * @param height
 * @param minZoom
 * @param maxZoom
 * @param padding
 */
export declare const calcTransformForBounds: (box: Box, width: number, height: number, minZoom: number, maxZoom: number, padding: [number, number]) => number[];
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