---
title: "identity | JavaScript maps SDK"
description: "Documentation for MapTiler SDK"
---

> For AI agents: a documentation index is available at [/llms.txt](https://docs.maptiler.com/llms.txt). Markdown versions of all pages are available by appending .md to any URL.

# Function identity

-   identity(out: [mat2](https://docs.maptiler.com/sdk-js/api-reference/types/Externals.mat2/)): [mat2](https://docs.maptiler.com/sdk-js/api-reference/types/Externals.mat2/)[](#identity)
    
    Set a mat2 to the identity matrix
    
    #### Parameters
    
    -   out: [mat2](https://docs.maptiler.com/sdk-js/api-reference/types/Externals.mat2/)
        
        the receiving matrix
        
    
    #### Returns [mat2](https://docs.maptiler.com/sdk-js/api-reference/types/Externals.mat2/)
    
    out