# Bar3DStreamSource

The Bar3DStreamSource type declaration and related types. Optional fields are marked with ?.

Canonical: https://chart.syidax.com/docs/types/Bar3DStreamSource/

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## Type declaration

```typescript
export interface Bar3DStreamSource {
  readonly length:number;readonly capacity:number;readonly dropped:number;
  push(point:Bar3DDatum):void;pushBatch(points:ReadonlyArray<Bar3DDatum>):void;shift(count:number):void;replace(points:ReadonlyArray<Bar3DDatum>):void;setCapacity(capacity:number):void;
  snapshot():Bar3DDatum[];subscribe(listener:(event:Bar3DStreamEvent)=>void):()=>void;
}
```

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## Related types

- [Bar3DDatum](https://chart.syidax.com/docs/types/Bar3DDatum.md)
- [Bar3DStreamEvent](https://chart.syidax.com/docs/types/Bar3DStreamEvent.md)