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  • Custom basemaps
  • Google custom basemap
  • CARTO custom basemap
  • Custom layer as a basemap

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  1. CARTO for Developers
  2. CARTO for React
  3. Guides

Basemaps

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Last updated 11 months ago

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This guide shows how you can change the basemap in your CARTO for React application. By default, the application will use the CARTO Voyager basemap, but you can choose any other CARTO basemap (Dark Matter, Voyager) or you can also use a Google Maps basemap.

These are the available basemaps:

BASEMAP
PREVIEW
Style description

POSITRON

DARK_MATTER

VOYAGER

GOOGLE_ROADMAP

No preview available yet

GOOGLE_SATELLITE

No preview available yet

GOOGLE_HYBRID

No preview available yet

GOOGLE_CUSTOM

No preview available yet

If you want to change the default (Voyager) basemap, you need to edit the src/store/initialStateSlice.js file. At the top of this file we are importing the basemap from the @carto/react package.

For instance, if you want to use a Google Maps roadmap basemap, you need to import it like this:

import { GOOGLE_ROADMAP } from '@carto/react-basemaps';

Then you need to modify the “basemap” property in the initialState object and provide the Google Maps API key:

export const initialState = {
  ...
  basemap: GOOGLE_ROADMAP,
  googleApiKey: 'AAAAABBBBBBBCCCCCCC11111122222233333',
  ...
};

Custom basemaps

You can use custom basemaps, in addition to the default basemaps provided by CARTO and Google. In this section we discuss how to configure your application to use these basemaps.

Google custom basemap

If you want to use a Google Maps custom basemap, you need to import it like this in the src/store/initialStateSlice.js file:

import { GOOGLE_CUSTOM } from '@carto/react-basemaps';

Then you need to modify the “basemap” property in the initialState object and provide the map ID and Google Maps API key:

export const initialState = {
  ...
  basemap: GOOGLE_CUSTOM,
  googleMapId: 'YOUR_GOOGLE_MAP_ID',
  googleApiKey: 'YOUR_GOOGLE_API_KEY',
  ...
};

CARTO custom basemap

  1. Load the style closest to the basemap you want to create (Positron, Voyager or Dark Matter) through the Load from URL option in the Open Style dialog, using the URLs provided above.

  2. Edit the style properties for each layer you want to customize.

  3. Export the style in JSON format using the Export dialog.

  4. Add the JSON file to your project (adding it to your public folder is a good choice, for example public/custom_basemap.json).

  5. Edit the basemap property in the src/store/initialStateSlice.js:

export const initialState = {
  ...
  basemap: {
    type: 'mapbox',
    options: {
      mapStyle: 'URL to the JSON style in your published app',
    }
  },
  ...
};

Custom layer as a basemap

You can add the basemap layer to each of the views where you want to use it or even add it to the <Main> view if you want to use it in all the application views.

CARTO basemaps follow the . If you want to create your custom basemap, you can use a visual editor like . This is the process:

You can also use a custom layer as the basemap. In this case you will be actually not using a basemap but just adding a deck.gl layer in the bottom most position. For instance, this can be used to load a WMTS service using the .

View on Github
Mapbox Style Specification
Maputnik
TileLayer
https://basemaps.cartocdn.com/gl/positron-gl-style/style.json
https://basemaps.cartocdn.com/gl/dark-matter-gl-style/style.json
https://basemaps.cartocdn.com/gl/voyager-gl-style/style.json