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PO
primarykey
Id
19118143
data
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0
AnswerCount
0
ClosedDate
CommentCount
0
CommunityOwnedDate
CreationDate
2013-10-01T13:56:58.437
FavoriteCount
0
LastActivityDate
2017-06-26T11:29:49.730
LastEditDate
2017-06-26T11:29:49.730
LastEditorUserId
119071
OwnerUserId
1521298
ParentId
16148598
PostTypeId
2
Score
15
ViewCount
0
LastEditorDisplayName
text
Body
I did this by adding each feature type to a different <a href="http://leafletjs.com/examples/layers-control.html" rel="nofollow noreferrer">LayerGroup</a> based on a property of the feature. e.g. GeoJSON <pre><code>var data =[ { type: "Feature", properties: { type: "type1" }, geometry: { type: "Point", coordinates: [-1.252,52.107] } }, { type: "Feature", properties: { type: "type2" }, geometry: { type: "Point", coordinates: [-2.252,54.107] } } ]; </code></pre> Create the <a href="http://leafletjs.com/reference.html#geojson" rel="nofollow noreferrer">GeoJSON</a> Layer <pre><code>//array to store layers for each feature type var mapLayerGroups = []; //draw GEOJSON - don't add the GEOJSON layer to the map here L.geoJson(data, {onEachFeature: onEachFeature})//.addTo(map); /* *for all features create a layerGroup for each feature type and add the feature to the layerGroup */ function onEachFeature(feature, featureLayer) { //does layerGroup already exist? if not create it and add to map var lg = mapLayerGroups[feature.properties.type]; if (lg === undefined) { lg = new L.layerGroup(); //add the layer to the map lg.addTo(map); //store layer mapLayerGroups[feature.properties.type] = lg; } //add the feature to the layer lg.addLayer(featureLayer); } </code></pre> Then you can call the Leaflet <a href="http://leafletjs.com/reference.html#layergroup" rel="nofollow noreferrer">map.addLayer/removeLayer</a> functions e.g. <pre><code>//Show layerGroup with feature of "type1" showLayer("type1"); /* * show/hide layerGroup */ function showLayer(id) { var lg = mapLayerGroups[id]; map.addLayer(lg); } function hideLayer(id) { var lg = mapLayerGroups[id]; map.removeLayer(lg); } </code></pre>
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1. POLeaflet: Update GeoJson filter?
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