---
title: Matrix structure
framework: quicktime-file-format
role: symbol
role_heading: Data field
path: quicktime-file-format/text_media_information_atom/matrix_structure
---

# Matrix structure

A matrix structure associated with this text media.

## Overview

Overview This should be the identity matrix. A matrix shows how to map points from one coordinate space into another. See Matrices for a discussion of how display matrices are used in QuickTime and see Matrix structure for an illustration of a matrix structure within an atom.

## See Also

### Data fields

- [Size](quicktime-file-format/text_media_information_atom/size.md)
- [Type](quicktime-file-format/text_media_information_atom/type.md)