import { ExtensionBase } from '../ExtensionBase';
import { Color, ColorRepresentation, Plane } from 'three';
import { ViewpointState } from '../../index';
declare enum GizmoDir {
    X = "crop-x",
    NX = "crop-nx",
    Y = "crop-y",
    NY = "crop-ny",
    Z = "crop-z",
    NZ = "crop-nz"
}
/**
 * Crop extension options for initial extension settings.
 */
export declare class CropExtensionOptions {
    /** Color of handles for resizing. */
    gizmoColor: ColorRepresentation;
    /** Color of crop box. */
    boxColor: ColorRepresentation;
}
/**
 * Crop box extension. Extension can show crop box and creates gizmos for modifying box size.
 */
export declare class CropExtension extends ExtensionBase implements ViewpointState {
    static getName: () => string;
    private sharedToolbar;
    /** Whether the measurement command is active or not. */
    isCropOn: boolean;
    /** Map with box clipping planes. */
    planes: Map<GizmoDir, Plane>;
    /** Color of handles for resizing. */
    gizmoColor: Color;
    /** Color of crop box. */
    boxColor: Color;
    private startPosition;
    private cropBoxLines;
    private gizmosGroup;
    private obb;
    private isNoData;
    private renderManager;
    private rotation;
    private readonly boxMat;
    isPicking: boolean;
    private equalResize;
    private syncResize;
    /**
     * @param viewerName - Owner viewer name.
     * @param options - options for extension.
     */
    constructor(viewerName: string, options: CropExtensionOptions);
    zoomSelected(): void;
    sharedToolbarRender(container: HTMLElement): void;
    storeViewpointState(): any;
    restoreViewpointState(state: any): void;
    initKeymap(): void;
    added(): void;
    deleted(): void;
    private onSceneLoaded;
    private init;
    onDragStart(event: any): void;
    onDragEnd(event: any): void;
    onDrag(event: any): void;
    private updateGizmos;
    private updateCropBox;
    private addGizmo;
    private onMouseMove;
    private hideFacesOutside;
    private onMouseWheel;
    /**
     * Sets vertical axis rotation via picking face.
     */
    setRotation(): void;
    commandChanged(): void;
    /**
     * Sets crop box size to selected elements boundaries.
     */
    setCropToSelected(forceZoom?: boolean): void;
    /**
     * Switch on or off crop box mode.
     * @param on - Is crop box on.
     */
    setCrop(on: boolean): void;
    private setRotationFromNormal;
}
export {};