import type { ViewportRect } from './viewport.types.js';
interface GridlineIntervalOptions {
    readonly current?: number;
    readonly scale: number;
    readonly step: number;
    readonly targetSpacing: number;
}
export declare function selectGridlineInterval(options: GridlineIntervalOptions): number;
export declare function createGridlineCoverage(visible: ViewportRect): ViewportRect;
export declare function gridlineCoverageNeedsUpdate(coverage: ViewportRect | undefined, visible: ViewportRect): boolean;
export {};