[GIS] Turf.js only with Mapbox.js

leafletmapboxturf

After trying turf.js with plain ole leaflet and getting confused because the most basic stuff wouldn't work, I'm thinking that turf.js requires Mapbox.js and access token. Can anyone confirm or deny this??

If this is the case, I have either totally overlooked it on the turf github and the turf API site, or that information is nowhere to be found, which is kind of annoying.

Best Answer

Turf.js is not dependent on Mapbox.js or access token. I was initially confused with the documentation, I think, but it works fine with plain leaflet.js.

Related Solutions

[GIS] Pass Leaflet Draw Marker to Turf.js point

You can grab the marker's coordinates from the draw:created event like this: e.layer._latlng

You can then pass these coordinates to your Turf.js function like this:

map.on('draw:created', function (e) {
  var type = e.layerType,
      layer = e.layer;

  if (type === 'marker') {
      //Grab Coordinates As Array
      var lnglat = [e.layer._latlng.lng, e.layer._latlng.lat];
      passToTurf(lnglat)
  }

  drawnItems.addLayer(layer);
});

////////////////////////////////
// Pass marker to turf.point
function passToTurf(lnglat){
  var point = turf.point(lnglat, {
    "marker-color": "#6BC65F",
    "title": "Start Point"
  });
}

Please note that Leaflet 0.7 stores coordinates in [latitude, longitude] pairs while Turf.js uses [longitude, latitude].

[GIS] Uncaught TypeError: o.intersection is not a function in turf.js

I think turf.intersect() takes only single features with Polygon geometry as arguments.

You should separate your layers into individual Polygons and compute the intersection between your 2 sets of Polygons by iteration.

Best Answer

Related Solutions

[GIS] Pass Leaflet Draw Marker to Turf.js point

[GIS] Uncaught TypeError: o.intersection is not a function in turf.js

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