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  "title" : "CIAztecCodeDescriptor"
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# CIAztecCodeDescriptor

A concrete subclass the Core Image Barcode Descriptor that represents an Aztec code symbol.

```
class CIAztecCodeDescriptor
```

## Overview

An Aztec code symbol is a 2D barcode format defined by the ISO/IEC 24778:2008 standard.
It encodes data in concentric square rings around a central bullseye pattern.

## Topics

### Creating a Descriptor

[`init(payload:isCompact:layerCount:dataCodewordCount:)`](/documentation/CoreImage/CIAztecCodeDescriptor/init(payload:isCompact:layerCount:dataCodewordCount:))

Initializes an Aztec code descriptor for the given payload and parameters.

[`descriptorWithPayload:isCompact:layerCount:dataCodewordCount:`](/documentation/CoreImage/CIAztecCodeDescriptor/descriptorWithPayload:isCompact:layerCount:dataCodewordCount:)

Creates an Aztec code descriptor for the given payload and parameters.

### Examining a Descriptor

[`errorCorrectedPayload`](/documentation/CoreImage/CIAztecCodeDescriptor/errorCorrectedPayload-swift.property)

The error-corrected payload that comprises the the Aztec code symbol.

[`isCompact`](/documentation/CoreImage/CIAztecCodeDescriptor/isCompact-swift.property)

A Boolean value telling if the Aztec code is compact.

[`layerCount`](/documentation/CoreImage/CIAztecCodeDescriptor/layerCount-swift.property)

The number of data layers in the Aztec code symbol.

[`dataCodewordCount`](/documentation/CoreImage/CIAztecCodeDescriptor/dataCodewordCount-swift.property)

The number of non-error-correction codewords carried by the Aztec code symbol.


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