import { Component } from '../component/Component';
import { Stage } from '../Stage';
import { BaseChart, BaseChartOptions } from './BaseChart';
import { ScaleLinear } from 'd3-scale';
import { Ani } from '../ani/Ani';
interface LineChartOptions extends BaseChartOptions {
    pointerR?: number;
}
export declare class LineChart extends BaseChart {
    pointerR: number;
    labelPlaceholder: number;
    labelSize: number;
    labelPadding: number;
    topN: number;
    constructor(options?: LineChartOptions);
    scales: {
        x: ScaleLinear<number, number, never>;
        y: ScaleLinear<number, number, never>;
    };
    setup(stage: Stage, parent: Ani): Promise<void>;
    getComponent(sec: number): Component | null;
    protected getScalesBySec(sec: number): {
        x: ScaleLinear<number, number, never>;
        y: ScaleLinear<number, number, never>;
    };
    private findY;
}
export {};