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https://github.com/maplibre/maplibre-gl-inspect
Maplibre GL Inspect adds an inspect control to maplibre-gl-js to view all features of the vector sources and allows hovering over features to see their properties.
https://github.com/maplibre/maplibre-gl-inspect
gis hacktoberfest inspector maplibre maplibre-gl-js
Last synced: about 18 hours ago
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Maplibre GL Inspect adds an inspect control to maplibre-gl-js to view all features of the vector sources and allows hovering over features to see their properties.
- Host: GitHub
- URL: https://github.com/maplibre/maplibre-gl-inspect
- Owner: maplibre
- License: bsd-3-clause
- Created: 2021-11-21T15:33:27.000Z (about 3 years ago)
- Default Branch: main
- Last Pushed: 2025-02-03T04:41:42.000Z (8 days ago)
- Last Synced: 2025-02-07T02:39:05.037Z (4 days ago)
- Topics: gis, hacktoberfest, inspector, maplibre, maplibre-gl-js
- Language: TypeScript
- Homepage: https://maplibre.org/maplibre-gl-inspect/
- Size: 1.76 MB
- Stars: 44
- Watchers: 5
- Forks: 8
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- Funding: .github/FUNDING.yml
- License: LICENSE
- Code of conduct: CODE_OF_CONDUCT.md
- Security: SECURITY_POLICY.txt
Awesome Lists containing this project
- awesome-maplibre - maplibre-gl-inspect - Adds an inspect control to view vector source features and properties. (Development Tools Plugins / JavaScript)
README
# Maplibre GL Inspect
Maplibre GL Inspect is a fork of Mapbox GL Inspect by lukasmartinelli ( https://github.com/lukasmartinelli/mapbox-gl-inspect ). It was forked to add support for maplibre-gl-js.
Add an inspect control to [maplibre-gl-js](https://github.com/maplibre/maplibre-gl-js) to view all features
of the vector sources and allows hovering over features to see their properties.
**Requires [maplibre-gl-js](https://github.com/maplibre/maplibre-gl-js) (min version 1.15).**
## Quick Start
**maplibre-gl-inspect** is a Maplibre GL JS plugin that you can easily add on top of your map.
Make sure to include the CSS and JS files.
**When using a CDN**
```html
```
**When using modules**
```js
import '@maplibre/maplibre-gl-inspect/dist/maplibre-gl-inspect.css';
import maplibregl from 'maplibre-gl';
import MaplibreInspect from '@maplibre/maplibre-gl-inspect';
// Pass an initialized popup to Maplibre GL
map.addControl(new MaplibreInspect({
popup: new maplibregl.Popup({
closeButton: false,
closeOnClick: false
})
}));
```
## Documentation
The docs can be found here:
https://maplibre.org/maplibre-gl-inspect/
The docs have two main sections - the API and the examples.
In order to see the examples' code either go to the examples folder in this repo, or press inspect in the browser to see the code.
It is written in plain html, no extra javascript files in order to have it as simple as possible.
## Short Examples
### Add Inspect Control
Add the inspect control to your map.
```javascript
map.addControl(new MaplibreInspect());
```
### Show Inspection Map
Switch to the inspection map by default.
```javascript
map.addControl(new MaplibreInspect({
showInspectMap: true
}));
```
### Show only Inspection Mode
Switch to the inspection map by default and hide the inspect button to switch back to the normal map. Check `examples/inspect-only.html`
```javascript
map.addControl(new MaplibreInspect({
showInspectMap: true,
showInspectButton: false
}));
```
### Disable Popup
Disable the feature Popup in inspection mode and in map mode. Check `examples/no-popup.html`
```javascript
map.addControl(new MaplibreInspect({
showInspectMapPopup: false,
showMapPopup: false
}));
```
### Custom Popup Function
You can also control the Popup output. Check `examples/custom-popup.html`
```javascript
map.addControl(new MaplibreInspect({
renderPopup: (features) => {
return '
' + features.length + '
';
}
}));
```
### Custom Color Function
You are able to control the generated colors and background of the inspection style.
Check `examples/custom-color-1.html` and `examples/custom-color-2.html`.
```javascript
var colors = ['#FC49A3', '#CC66FF', '#66CCFF', '#66FFCC'];
map.addControl(new MaplibreInspect({
backgroundColor: '#000',
assignLayerColor: (layerId, alpha) => {
var randomNumber = parseInt(Math.random() * colors.length);
return colors[randomNumber];
}
}));
```
### Show just Popup but no Inspect Style
You can also hide the inspect button and enable the popup on the map if just want the popup hovering feature in your normal map but no inspect style.
Check `examples/no-inspect-style.html`.
```js
map.addControl(new MaplibreInspect({
showInspectButton: false,
showMapPopup: true
}));
```
### Show Popup only for certain Features
You can pass a `queryParameters` object structured like the parameters object documented for `map.queryRenderedFeatures`](https://maplibre.org/maplibre-gl-js/docs/API/classes/Map/#queryrenderedfeatures).
This let's you show the inspect popup for only certain layers.
Check `examples/query-params.html`.
```js
map.addControl(new MaplibreInspect({
queryParameters: {
layers: ['composite_road_line']
}
}));
```
You can also use this feature to do custom layer [filtering](https://maplibre.org/maplibre-style-spec/expressions/).
```js
map.addControl(new MaplibreInspect({
queryParameters: {
filter: ['>', 'height', 10]
}
}));
```
### Less Fidly Popup
If inspecting features is too fiddly for thin lines you can optionally set a custom pixel buffer around the pointer when querying for features to make inspection a bit more forgiving.
Check `examples/less-fidly.html`.
```js
map.addControl(new MaplibreInspect({
selectThreshold: 50
}));
```
### Show Popup only on Click not on Hovering
Do not show the inspect popup when hovering over the map but only when clicking on the map.
Check `examples/popup-on-click.html`.
```js
map.addControl(new MaplibreInspect({
showMapPopup: true,
showMapPopupOnHover: false,
showInspectMapPopupOnHover: false
}));
```
### Add a Callback for Inspect Toggle Events
Call a function whenever the user toggles the inpect map on or off. Useful for adding inspect state to URL hash.
Check `examples/url-hash-toggle-callback.html`.
```js
map.addControl(new MaplibreInspect({
toggleCallback: (showInspectMap) => {
console.log(`showInspectMap is ${showInspectMap}`);
}
}));
```
## Develop
To build the library:
```
npm install
npm run build-dist
```
To see how it behaves
```
npm install
npm run build-dist
npm run start
```
This will start a local server, surf to it and to the `examples` folder to see changes in the code.