---
title: "GlyphMetrics | 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 GlyphMetrics

type GlyphMetrics \= {  
    [advance](#advance): number;  
    [height](#height): number;  
    [isDoubleResolution](#isdoubleresolution)?: boolean;  
    [left](#left): number;  
    [top](#top): number;  
    [width](#width): number;  
}

##### Index

### Properties[](#properties)

[advance](#advance) [height](#height) [isDoubleResolution?](#isdoubleresolution) [left](#left) [top](#top) [width](#width)

## Properties[](#properties-1)

### advance[](#advance)

advance: number

### height[](#height)

height: number

### `Optional`isDoubleResolution[](#isdoubleresolution)

isDoubleResolution?: boolean

isDoubleResolution = true for 48px textures

### left[](#left)

left: number

### top[](#top)

top: number

### width[](#width)

width: number