> For the complete documentation index, see [llms.txt](https://docs.mapbox.com/mapbox-gl-js/ja/llms.txt) # Query terrain elevation along a line This example uses [turf.js](https://turfjs.org/) and [queryTerrainElevation](https://docs.mapbox.com/mapbox-gl-js/ja/api/map/#map#queryterrainelevation) to query for elevations at regular intervals between two points. The resulting elevations are displayed in a line chart with [chart.js](https://www.chartjs.org/) to create a visual elevation profile. Drag the markers to create a new elevation profile between any two points. > Example code: **JavaScript** ```html Query terrain elevation along a line
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