Merge pull request #4179 from VisActor/feat/combination-candlestick-chart

Feat/combination candlestick chart

Author: xuefei1313

packages/vchart-extension/src/charts/candlestick/index.ts

@@ -1,3 +1,5 @@
 export * from './candlestick';
 export * from './interface';
 export * from './candlestick-transformer';
+export * from './series/candlestick';
+export * from './util';

packages/vchart-extension/src/charts/candlestick/util.ts

@@ -0,0 +1,5 @@
+import type { ICartesianSeriesSpec } from '@visactor/vchart';
+import type { ICandlestickSeriesSpec } from './series/interface';
+export function transformCandlestickSeriesSpec(spec: ICandlestickSeriesSpec) {
+  (spec as ICartesianSeriesSpec).yField = [spec.openField, spec.highField, spec.lowField, spec.closeField];
+}