import { CSS3DSprite } from "../jsm/renderers/CSS3DRenderer.js";
import * as THREE from 'three';
import type { IPanel3Data, IPanel3DOM, IPanel3TemplateDOM, IPanel3Line } from './types';
export declare class Panel3 extends CSS3DSprite {
    readonly type = "Panel3";
    protected line?: THREE.Line;
    private scaleRatio;
    initShow: boolean;
    switchVisible: boolean;
    constructor(panelData: IPanel3Data);
    static createDOM(domData: IPanel3DOM): HTMLElement;
    updateContent(content: string): void;
    static createTemplateDOM(domData: IPanel3TemplateDOM): {
        dom: HTMLDivElement;
        contentDom: HTMLDivElement;
    };
    createLine(lineData?: IPanel3Line): void;
}