import { ResolvedChartSeries } from "../types";
import { ChartLayout } from "./getChartLayout";
export type LinePoint = {
    seriesLabel: string;
    color: string;
    value: number;
    x: number;
    y: number;
    categoryIndex: number;
};
export type LinePathSegment = {
    seriesLabel: string;
    color: string;
    points: LinePoint[];
    d: string;
};
export type LineSeriesGeometry = {
    segments: LinePathSegment[];
    points: LinePoint[];
};
/** Y 軸は 0 起点。負の値を含む場合のスケール調整は未対応。 */
export declare function computeLineChartMaxValue(series: readonly Pick<ResolvedChartSeries, "data">[], categoryCount?: number): number;
export declare function getCategoryCenterX(categoryIndex: number, chartLayout: Pick<ChartLayout, "paddingLeft" | "slotWidth">): number;
export declare function getValueY(value: number, maxValue: number, chartLayout: Pick<ChartLayout, "paddingTop" | "chartHeight">): number;
export declare function pathFromPoints(points: readonly LinePoint[]): string;
export declare function getLinePathSegments(item: ResolvedChartSeries, chartLayout: ChartLayout, maxValue: number, categoryCount?: number): LinePathSegment[];
export declare function getLineSeriesGeometry(item: ResolvedChartSeries, chartLayout: ChartLayout, maxValue: number, categoryCount?: number): LineSeriesGeometry;
export declare function getLinePoints(item: ResolvedChartSeries, chartLayout: ChartLayout, maxValue: number, categoryCount?: number): LinePoint[];