import Composition from '../../Composition';
import VoxelCloud from '../../annotation/VoxelCloud';
import DraggableTool from '../DraggableTool';
import Viewer from '../../viewer/Viewer';
import ViewerEvent from '../../viewer/ViewerEvent';
import { Vector2, Vector3 } from 'three';
/**
 * VoxelCloudToolBase is a base tool that affects VoxelCloud annotations.
 */
export default class VoxelCloudToolBase extends DraggableTool {
    protected usePointerLockAPI: boolean;
    protected activeCloud: VoxelCloud | null;
    protected pX: number | undefined;
    protected pY: number | undefined;
    constructor();
    activate(viewer: Viewer): void;
    deactivate(viewer: Viewer): void;
    protected convertViewerPoint(point: Vector2, viewer: Viewer): Vector3;
    protected draw3DLineWithValue(viewer: Viewer, start: Vector2, end: Vector2, value: number): void;
    protected draw3DLineWithValueAndWidth(viewer: Viewer, start: Vector2, end: Vector2, value: number, width?: number): void;
    /**
     * Find the active VoxelCloud annotation in a composition
     * @return If there is only one active VoxelCloud instance, returns it.
     */
    protected getActiveCloud(composition: Composition): VoxelCloud | null;
    mouseMoveHandler(ev: ViewerEvent): void;
    dragStartHandler(ev: ViewerEvent): void;
    dragDraw(ev: ViewerEvent, value: number, width: number): void;
    dragEndHandler(ev: ViewerEvent): void;
}