import * as d3Geo from 'd3-geo';
import { WidgetView } from '@jupyter-widgets/base';
import { GeoScaleModel } from './GeoScaleModel';
export declare class GeoScale extends WidgetView {
    render(): void;
    protected createD3Scale(): void;
    resetScale(): void;
    path: d3Geo.GeoPath;
    scale: d3Geo.GeoProjection;
    model: GeoScaleModel;
}
export declare class Mercator extends GeoScale {
}
export declare class Albers extends GeoScale {
}
export declare class AlbersUSA extends GeoScale {
}
export declare class EquiRectangular extends GeoScale {
}
export declare class Orthographic extends GeoScale {
}
export declare class Gnomonic extends GeoScale {
}
export declare class Stereographic extends GeoScale {
}