import { TextureLoader } from 'three';
import { RegionMapChildComponent, RegionMapChildType } from '../type';
export declare function transformColor(color: string): {
    color: string;
    opacity: number;
} | undefined;
export declare function removeGroup(group: any): void;
export declare function getFontCssText(fontStyle: any): string;
export declare function filterChildComponents(childType: RegionMapChildType, list?: RegionMapChildComponent[]): RegionMapChildComponent[];
export declare const X_RAD: number;
export declare const textureLoader: TextureLoader;
export declare function getRandomId(len?: number): string;