import { BufferGeometry, Points } from 'three';
import { QuadObject } from '../QuadObject';
import { QUADTesselationParams } from '../QuadCommon';
export declare function quadToCenterEdgeCenterVectorAttributeName(edgeIndex: number): string;
export declare function quadToCenterEdgeNearestPointVectorAttributeName(edgeIndex: number): string;
export declare function quadToCenter(quadObject: QuadObject, options: QUADTesselationParams): Points<BufferGeometry<import("three").NormalBufferAttributes>, import("three").Material, import("three").Object3DEventMap>;