import { ContextManager } from '@zcomponent/core';
import * as THREE from 'three';
import { BufferGeometry, BufferGeometryConstructorProps } from './BufferGeometry';
/**
 * Interface for constructor properties of RingGeometry.
 */
interface RingGeometryConstructorProps extends BufferGeometryConstructorProps {
    /**
     * Default is 1.
     * @zprop
     * @zdefault 1
     */
    innerRadius?: number;
    /**
     * Default is 1.
     * @zprop
     * @zdefault 1
     */
    outerRadius?: number;
    /**
     * Number of segments. A higher number means the ring will be more round. Minimum is 3. Default is 8.
     * @zprop
     * @zdefault 8
     */
    thetaSegments?: number;
    /**
     * Minimum is 1. Default is 1.
     * @zprop
     * @zdefault 1
     */
    phiSegments?: number;
    /**
     * Starting angle. Default is 0.
     * @zprop
     * @zdefault 0
     */
    thetaStart?: number;
    /**
     * Central angle. Default is Math.PI * 2.
     * @zprop
     * @zdefault 6.283185307179586
     */
    thetaLength?: number;
}
/**
 * A Component for generating a ring geometries.
 *
 * Root element: [THREE.RingGeometry](https://threejs.org/docs/#api/en/geometries/RingGeometry)
 *
 *
 * @zcomponent
 * @zgroup Geometry
 * @zicon geometry
 * @ztag three/Geometry/RingGeometry
 * @zparents three/Object3D/Mesh/Mesh
 */
export declare class RingGeometry extends BufferGeometry<THREE.RingGeometry> {
    /**
     * Constructs a RingGeometry.
     * @param contextManager - The context manager.
     * @param props - The properties required to construct a RingGeometry.
     */
    constructor(contextManager: ContextManager, props: RingGeometryConstructorProps);
}
export {};