import { LinearScale } from './linear-scale';
/** Logarithmic scale (domain strictly of one sign, positive by default). */
export declare class LogScale extends LinearScale {
    base: number;
    convert(value: number): number;
    invert(position: number): number;
    /** Extends the domain to the nearest powers of base. */
    nice(): void;
    /** Ticks at powers of base; linear when the domain is narrow. */
    ticks(count?: number): number[];
}