import { ExtensionBase } from '../ExtensionBase';
/**
 * An extension that allows you to determine the coordinates of a point on the face.
 */
export declare class CoordinatesExtension extends ExtensionBase {
    static getName: () => string;
    content: any;
    /** Whether the measurement command is active or not. */
    isActive: boolean;
    isLabelsShow: boolean;
    private label;
    /**
     * Enables or disables the coordinates measurement mode.
     */
    switchCoordinatesMode(): void;
    commandChanged(newCommand: ExtensionBase | undefined): void;
    onMouseMove(): void;
    /**
     * @param viewerName - Owner viewer name.
     */
    constructor(viewerName: string);
    static getLabelName(): string;
    added(): void;
    deleted(): void;
}