> For the complete documentation index, see [llms.txt](https://developers.felt.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://developers.felt.com/js-sdk-api-reference/layers/rasterband.md).

# RasterBand

***

The RasterBand interface describes one band of a raster: how to identify it when asking for statistics, what to call it, and the values needed to calculate the encoded raster value from the red, green, and blue values of a pixel.

## Properties

### id

> **id**: `string`

The identifier for this band, such as `"band:1"`.

Pass this to the raster statistics methods, such as [LayersController.getRasterAggregates](/js-sdk-api-reference/layers/layerscontroller.md#getrasteraggregates), and use it to refer to the band inside a filter.

***

### displayName

> **displayName**: `string`

The name of the band, such as "Red" or "Elevation".

Felt takes this from the raster itself when the file names its bands, and falls back to "Band 1", "Band 2" and so on.

***

### base

> **base**: `number`

Encoding base value as a floating point number

***

### interval

> **interval**: `number`

Encoding interval as a floating point number

***

### bandIndex

> **bandIndex**: `number`

1-based index of the band in the raster


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