---
title: "Point layer outline (point helper) | JavaScript maps SDK"
description: "Add outlined point layer using MapTiler point helper."
---
> 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.
# Point layer outline (point helper)
The following example demonstrates the process of including a point layer on the map along with an outline. This can be achieved by utilizing the point layer helper. To replicate this example, download the [earthquake sample data](../../assets/earthquakes.geojson).
In this example, the outline starts at zoom level 7. Additionally, the width and opacity of the outline can be gradually increased to create a visually appealing effect.
### NPM module setup
```bash
npm install --save @maptiler/sdk
```
#### main.js
```js
import { Map, MapStyle, config, ColorRampCollection, helpers } from '@maptiler/sdk';
import '@maptiler/sdk/dist/maptiler-sdk.css';
config.apiKey = 'YOUR_MAPTILER_API_KEY_HERE';
const map = new Map({
container: 'map',
zoom: 7.88,
center: [151.401, -5.096],
style: MapStyle.DATAVIZ.LIGHT
});
map.on('load', async function () {
await helpers.addPoint(map, {
data: 'YOUR_MAPTILER_DATASET_ID_HERE',
property: "mag",
pointColor: ColorRampCollection.VIRIDIS.scale(1, 5),
minPointRadius: 2,
maxPointRadius: 100,
pointOpacity: 0.7,
showLabel: true,
labelSize: 10, // 12 by default
outline: true,
outlineWidth: [
{zoom: 6, value: 0},
{zoom: 7, value: 1},
{zoom: 12, value: 5},
],
outlineOpacity: [
{zoom: 7, value: 0},
{zoom: 10, value: 1},
],
outlineColor: "#000",
labelColor: "#000"
});
});
```
#### index.html
```html
Point layer outline (point helper) | NPM example
```
#### style.css
```css
body {margin: 0; padding: 0;}
#map {position: absolute; top: 0; bottom: 0; width: 100%;}
```
### Basic JavaScript setup
```html
Point helper
```
## Related examples
### [Point layer cluster (point helper)](https://docs.maptiler.com/sdk-js/examples/helper-point-cluster/)
Examples
Add clustered point layer using MapTiler point helper.
### [Heatmap layer (heatmap helper)](https://docs.maptiler.com/sdk-js/examples/helper-heatmap-minimal/)
Examples
Quickly add a heatmap layer using the heatmap helper.
### [Point layer (point helper)](https://docs.maptiler.com/sdk-js/examples/helper-point-minimal/)
Examples
Add minimal point layer using MapTiler point helper.
### [Point layer colored and sized according to a property (point helper)](https://docs.maptiler.com/sdk-js/examples/helper-point-property-style/)
Examples
Style point layer by property using point helper.