# indicator

Wafer map: orientation-mark kind (`notch` / `flat` / `none`).

Canonical: https://chart.syidax.com/docs/options/indicator/

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## Definition

| Item | Value |
| --- | --- |
| JavaScript property | `indicator` |
| HTML attribute | `indicator` |
| Type | `WaferIndicator` |
| Default | `undefined` |
| Allowed values | `none`, `flat`, `notch` |

undefined means this property was not explicitly set. The effective value may depend on the chart type and other settings.

- [WaferIndicator](https://chart.syidax.com/docs/types/WaferIndicator.md) — Type definition

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## Related documentation

A property with the same name may have different types and defaults across charts. When using a direct tag, follow that chart's documentation below.

- [Shared facade and direct tags](https://chart.syidax.com/docs/concepts.md)
- [sy-wafer-map](https://chart.syidax.com/docs/components/wafer-map.md#property-indicator)
- [sy-wafer-stack](https://chart.syidax.com/docs/components/wafer-stack.md#property-indicator)
- [sy-wafer-correlation](https://chart.syidax.com/docs/components/wafer-correlation.md#property-indicator)
- [sy-yield-zone-chart](https://chart.syidax.com/docs/components/yield-zone-chart.md#property-indicator)