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Fit map to polygon bounds with Turf and Mapbox GL JS
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <meta charset='utf-8' /> | |
| <title></title> | |
| <meta name='viewport' content='initial-scale=1,maximum-scale=1,user-scalable=no' /> | |
| <script src='https://api.tiles.mapbox.com/mapbox-gl-js/v0.18.0/mapbox-gl.js'></script> | |
| <link href='https://api.tiles.mapbox.com/mapbox-gl-js/v0.18.0/mapbox-gl.css' rel='stylesheet' /> | |
| <script src='https://api.mapbox.com/mapbox.js/plugins/turf/v2.0.2/turf.min.js'></script> | |
| <style> | |
| body { margin:0; padding:0; } | |
| #map { position:absolute; top:0; bottom:0; width:100%; } | |
| #fitBounds { | |
| background-color: #ee8a65; | |
| font-family: Helvetica, Arial, Sans-Serif; | |
| color: #fff; | |
| position: absolute; | |
| top: 1em; | |
| right: 1em; | |
| padding: 0.7em; | |
| border-radius: 0.2em; | |
| cursor: pointer; | |
| } | |
| </style> | |
| </head> | |
| <body> | |
| <div id='map'></div> | |
| <div id='fitBounds' onclick='fit()'>fit to polygon</div> | |
| <script> | |
| mapboxgl.accessToken = 'pk.eyJ1IjoiZGFuc3dpY2siLCJhIjoiY2l1dTUzcmgxMDJ0djJ0b2VhY2sxNXBiMyJ9.25Qs4HNEkHubd4_Awbd8Og'; | |
| var map = new mapboxgl.Map({ | |
| container: 'map', // container id | |
| style: 'mapbox://styles/mapbox/streets-v8', //stylesheet location | |
| center: [-74.50, 40], // starting position | |
| zoom: 9 // starting zoom | |
| }); | |
| var geojson = { | |
| "type": "FeatureCollection", | |
| "features": [ | |
| { | |
| "type": "Feature", | |
| "properties": {}, | |
| "geometry": { | |
| "type": "Polygon", | |
| "coordinates": [ | |
| [ | |
| [ | |
| -33.83789062499999, | |
| 60.37042901631508 | |
| ], | |
| [ | |
| -39.814453125, | |
| 55.825973254619015 | |
| ], | |
| [ | |
| -33.662109375, | |
| 53.90433815627468 | |
| ], | |
| [ | |
| -25.839843749999996, | |
| 55.87531083569679 | |
| ], | |
| [ | |
| -21.708984375, | |
| 59.84481485969105 | |
| ], | |
| [ | |
| -29.619140624999996, | |
| 61.39671887310411 | |
| ], | |
| [ | |
| -33.83789062499999, | |
| 60.37042901631508 | |
| ] | |
| ] | |
| ] | |
| } | |
| } | |
| ] | |
| }; | |
| var bbox = turf.extent(geojson); | |
| map.on('load', function(){ | |
| map.addSource('my-geojson', { | |
| "type": "geojson", | |
| "data": geojson | |
| }); | |
| map.addLayer({ | |
| "id": "geojsonLayer", | |
| "type": "fill", | |
| "source": "my-geojson", | |
| "paint": { | |
| "fill-color": "#000fff" | |
| } | |
| }); | |
| }); | |
| function fit() { | |
| map.fitBounds(bbox, {padding: 20}); | |
| } | |
| </script> | |
| </body> | |
| </html> |
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Landed here from google and wanted to note that at this point in time
turf.bboxwould be the way to do this in place ofturf.extent