import type { RuntimeContext } from '../runtime/types';
import type { BasePluginOptions } from './base-plugin';
import { BasePlugin } from './base-plugin';
export interface CameraSettingOptions extends BasePluginOptions {
    /**
     * <zh/> 投影模式，透视投影仅在 3D 场景下有效
     * - `'perspective'` : 透视投影
     * - `'orthographic'` : 正交投影
     *
     * <en/> Projection mode, perspective projection is only valid in 3D scenes
     * - `'perspective'` : perspective projection
     * - `'orthographic'` : Orthogonal projection
     */
    projectionMode?: 'perspective' | 'orthographic';
    /**
     * <zh/> 相机类型
     * - `'orbiting'`: 固定视点，改变相机位置
     * - `'exploring'`: 类似 orbiting，但允许相机在北极和南极之间旋转
     * - `'tracking'`: 固定相机位置，改变视点
     *
     * <en/> Camera type
     * - `'orbiting'`: Fixed viewpoint, change camera position
     * - `'exploring'`: Similar to orbiting, but allows the camera to rotate between the North Pole and the South Pole
     * - `'tracking'`: Fixed camera position, change viewpoint
     */
    cameraType?: 'orbiting' | 'exploring' | 'tracking';
    /**
     * <zh/> 近平面位置
     *
     * <en/> The position of the near plane
     */
    near?: number;
    /**
     * <zh/> 远平面位置
     *
     * <en/> The position of the far plane
     */
    far?: number;
    /**
     * <zh/> 相机视角，仅在透视相机下有效
     *
     * <en/> Camera field of view, only valid in perspective camera
     */
    fov?: number;
    /**
     * <zh/> 相机视口宽高比，仅在透视相机下有效
     * - number : 具体的宽高比
     * - `'auto'` : 自动设置为画布的宽高比
     *
     * <en/> Camera viewport aspect ratio, only valid in perspective camera.
     * - number : Specific aspect ratio
     * - `'auto'` : Automatically set to the aspect ratio of the canvas
     */
    aspect?: number | 'auto';
    /**
     * <zh/> 相机距离目标的距离
     *
     * <en/> The distance from the camera to the target
     * @defaultValue 500
     */
    distance?: number;
    /**
     * <zh/> 最小视距
     *
     * <en/> Minimum distance
     */
    minDistance?: number;
    /**
     * <zh/> 最大视距
     *
     * <en/> Maximum distance
     */
    maxDistance?: number;
    /**
     * <zh/> 滚转角
     *
     * <en/> Roll
     */
    roll?: number;
    /**
     * <zh/> 仰角
     *
     * <en/> Elevation
     */
    elevation?: number;
    /**
     * <zh/> 方位角
     *
     * <en/> Azimuth
     */
    azimuth?: number;
}
/**
 * <zh/> 配置相机参数
 *
 * <en/> Configure camera parameters
 */
export declare class CameraSetting extends BasePlugin<CameraSettingOptions> {
    constructor(context: RuntimeContext, options: CameraSettingOptions);
    /**
     * <zh/> 更新相机参数
     *
     * <en/> Update camera parameters
     * @param options - <zh/> 相机配置项 | <en/> Camera configuration options
     * @internal
     */
    update(options: Partial<CameraSettingOptions>): void;
    private bindEvents;
    private setOptions;
    private getCanvasAspect;
}