/**
 * Viewer coordiate system transformer interface.
 */
export interface IWorldTransform {
    /**
     * Transforms `position` from screen space into world space.
     *
     * @param position - Screen position in pixels.
     */
    screenToWorld(position: {
        x: number;
        y: number;
    }): {
        x: number;
        y: number;
        z: number;
    };
    /**
     * Transforms `position` from world space into screen space.
     *
     * @param position - Position in world space coordinates.
     */
    worldToScreen(position: {
        x: number;
        y: number;
        z: number;
    }): {
        x: number;
        y: number;
    };
    /**
     * Returns the scaling factors for each axis in world space.
     */
    getScale(): {
        x: number;
        y: number;
        z: number;
    };
}