@tanstack/charts
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A chart grammar for TypeScript and JavaScript. Marks consume your data directly, channels describe visual encodings, and the engine compiles them into a renderer-neutral keyed scene. TanStack's compact scales cover common numeric and categorical mappings.
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TypeScript
import type { Channel, ChartKey, ChartMark, ChartMarkMotionOptions, ChartMarkState, ChartAreaStateStyle, ChartValue, OptionChannelOutput, VisualChannel } from './types.js';
import type { StackLayout } from './stack.js';
export interface AreaXCurve {
areaX: (right: readonly (readonly [number, number])[], left: readonly (readonly [number, number])[]) => string;
}
export interface AreaXOptions<TDatum> extends ChartMarkMotionOptions<TDatum> {
id?: string;
x?: Channel<TDatum, number | null | undefined>;
x1?: number | Channel<TDatum, number | null | undefined>;
x2?: number | Channel<TDatum, number | null | undefined>;
y?: Channel<TDatum, ChartValue | null | undefined>;
z?: Channel<TDatum, ChartKey | null | undefined>;
color?: Channel<TDatum, ChartKey | null | undefined>;
key?: Channel<TDatum, ChartKey>;
fill?: VisualChannel<TDatum, string>;
fillOpacity?: number;
stroke?: VisualChannel<TDatum, string>;
strokeWidth?: number;
curve?: AreaXCurve;
layout?: StackLayout;
states?: readonly ChartMarkState<TDatum, ChartAreaStateStyle<TDatum>>[];
}
export declare function areaX<TDatum>(source: Iterable<TDatum>): ChartMark<TDatum, number, number>;
export declare function areaX<TDatum, const TOptions extends AreaXOptions<NoInfer<TDatum>> | undefined>(source: Iterable<TDatum>, options: TOptions): ChartMark<TDatum, number, OptionChannelOutput<TDatum, TOptions, 'y', number>>;