> For the complete documentation index, see [llms.txt](https://docs.mapbox.com/mapbox-gl-js/ja/llms.txt) # Use different map projections for web maps Set the `Map` object's [`projection`](https://docs.mapbox.com/style-spec/reference/projection/) parameter to create a map with a non-Mercator projection. You can also change the projection at runtime using the [`setProjection`](https://docs.mapbox.com/mapbox-gl-js/ja/api/map/#map#setprojection) method, or set it as a part of your map style in [Studio](https://console.mapbox.com/studio/). Both `albers` and `lambertConformalConic` can be configured with `center: [lng, lat]` and `parallels: [lat1, lat2]` to make them appropriate for other regions. > Example code: **JavaScript** ```html Use different map projections for web maps
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