---
title: "SizeData | 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.

# Type Alias SizeData

SizeData:  
    | { kind: "constant"; layoutSize: number }  
    | { kind: "source" }  
    | {  
        interpolationType: [InterpolationType](https://docs.maptiler.com/sdk-js/api-reference/types/InterpolationType/);  
        kind: "camera";  
        maxSize: number;  
        maxZoom: number;  
        minSize: number;  
        minZoom: number;  
    }  
    | {  
        interpolationType: [InterpolationType](https://docs.maptiler.com/sdk-js/api-reference/types/InterpolationType/);  
        kind: "composite";  
        maxZoom: number;  
        minZoom: number;  
    }