/**
 * Viewport - High-level 3D visualization
 *
 * Simple wrapper for Three.js rendering of CAD geometries
 */
import * as THREE from 'three';
import type { Geometry } from '../shared/types';
import type { ViewportConfig, ViewportEventHandlers, ViewportStats } from './types';
export declare class Viewport {
    private container;
    private scene;
    private camera;
    private renderer;
    private mesh;
    private animationId;
    private pluginExtensions;
    private config;
    private eventHandlers;
    constructor(container: HTMLElement, config?: Partial<ViewportConfig>);
    private initScene;
    private setupLighting;
    private setupCamera;
    private setupRenderer;
    private setupControls;
    private setupGrid;
    private startRenderLoop;
    private render;
    private initializePluginExtensions;
    /**
     * Update geometry in viewport
     */
    updateGeometry(geometry: Geometry): void;
    /**
     * Auto-adjust camera to view entire geometry
     */
    private fitCameraToGeometry;
    /**
     * Set event handlers
     */
    setEventHandlers(handlers: ViewportEventHandlers): void;
    private setupMouseEvents;
    /**
     * Get current viewport stats
     */
    getStats(): ViewportStats;
    /**
     * Resize viewport
     */
    resize(width: number, height: number): void;
    /**
     * Dispose viewport
     */
    dispose(): void;
    /**
     * Get Three.js objects for advanced usage
     */
    getThreeObjects(): {
        scene: THREE.Scene;
        camera: THREE.PerspectiveCamera;
        renderer: THREE.WebGLRenderer;
        mesh: THREE.Mesh<THREE.BufferGeometry<THREE.NormalBufferAttributes>, THREE.Material | THREE.Material[], THREE.Object3DEventMap> | null;
    };
}
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