---
title: AXDataAxisDescriptor
framework: accessibility
role: symbol
role_heading: Protocol
path: accessibility/axdataaxisdescriptor
---

# AXDataAxisDescriptor

The basic interface for a data axis in a chart.

## Declaration

```swift
protocol AXDataAxisDescriptor : NSCopying
```

## Overview

Overview Each AXChart requires at least two AXDataAxisDescriptor objects to describe an x-axis and a y-axis.

## Topics

### Specifying the title

- [title](accessibility/axdataaxisdescriptor/title.md)
- [attributedTitle](accessibility/axdataaxisdescriptor/attributedtitle.md)

## Relationships

### Inherits From

- [NSCopying](foundation/nscopying.md)

### Conforming Types

- [AXCategoricalDataAxisDescriptor](accessibility/axcategoricaldataaxisdescriptor.md)
- [AXNumericDataAxisDescriptor](accessibility/axnumericdataaxisdescriptor.md)

## See Also

### Axis representation

- [AXCategoricalDataAxisDescriptor](accessibility/axcategoricaldataaxisdescriptor.md)
- [AXNumericDataAxisDescriptor](accessibility/axnumericdataaxisdescriptor.md)