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# numberOfPlanes

The number of separate planes into which the image data is organized.

```
var numberOfPlanes: Int { get }
```

## Discussion

If the data has a separate plane for each component—that is, [`isPlanar`](/documentation/AppKit/NSBitmapImageRep/isPlanar) is <doc://com.apple.documentation/documentation/Swift/true>—the value of this property is the number of samples per pixel. If the data is meshed, the value of this property is `1`.

## See Also

[`bitsPerSample`](/documentation/AppKit/NSImageRep/bitsPerSample)

The number of bits per sample in the object (if the object is a planar image, this property contains the number of bits per sample per plane).


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