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<head>
<meta charset="utf-8">
<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.5/d3.min.js"></script>
<script src='https://api.mapbox.com/mapbox.js/v2.2.3/mapbox.js'></script>
<link href='https://api.mapbox.com/mapbox.js/v2.2.3/mapbox.css' rel='stylesheet' />
<style>
body { margin:0;position:fixed;top:0;right:0;bottom:0;left:0; }
#map {
position:absolute;
width: 100%;
height: 100%;
}
</style>
</head>
<body>
<form action="/action_page.php">
<input type="checkbox" name="USA" value="usaClicked()"> USA <br>
<input type="checkbox" name="Liberia" value="LiberiaClicked()" checked> Liberia <br>
<input type="checkbox" name="Guinea" value="guineaClicked()" checked> Guinea <br>
</form>
<div id="map"></div>
<script>
function usaClicked(){
d3.select("body".selectAll("input") [0].foreach(function(i){console.log(i.checked);))
}
function liberiaClicked(){
alert ("I am an alert box!");
}
function guineaClicked(){
alert ("I am an alert box!");
}
L.mapbox.accessToken = 'pk.eyJ1IjoiZW5qYWxvdCIsImEiOiJjaWhtdmxhNTIwb25zdHBsejk0NGdhODJhIn0.2-F2hS_oTZenAWc0BMf_uw'
//Setup our Leaflet map using Mapbox.js
var map = L.mapbox.map('map', 'mapbox.light')
.setView([20,-30], 3);
// Setup our svg layer that we can manipulate with d3
var svg = d3.select(map.getPanes().overlayPane)
.append("svg");
var g = svg.append("g").attr("class", "leaflet-zoom-hide");
function project(ll) {
console.log("ll:", ll);
// our data came from csv, make it Leaflet friendly
//var a = [+ll.lat, +ll.lon];
var b = [+ll[1], +ll[0]];
// convert it to pixel coordinates
var point = map.latLngToLayerPoint(L.latLng(b))
return point;
}
d3.json("data.json", function(err, data) {
console.log("data:", data);
var dots = g.selectAll("circle.dot")
.data(data.features)
dots.enter().append("circle").classed("dot", true)
.attr("r", 250)
.style({
fill: "#24c7fd",
"fill-opacity": 0.6,
stroke: "#004d60",
"stroke-width": 0
})
.style({
fill: "#25dcfc",
"fill-opacity": 0.6,
stroke: "#0e0060",
"stroke-width": 1
})
.attr("r", 6)
function render() {
// We need to reposition our SVG and our containing group when the map
// repositions via zoom or pan
// https://github.com/zetter/voronoi-maps/blob/master/lib/voronoi_map.js
var bounds = map.getBounds();
var topLeft = map.latLngToLayerPoint(bounds.getNorthWest())
var bottomRight = map.latLngToLayerPoint(bounds.getSouthEast())
svg.style("width", map.getSize().x + "px")
.style("height", map.getSize().y + "px")
.style("left", topLeft.x + "px")
.style("top", topLeft.y + "px");
g.attr("transform", "translate(" + -topLeft.x + "," + -topLeft.y + ")");
// We reproject our data with the updated projection from leaflet
g.selectAll("circle.dot")
.attr({
cx: function(d) {
console.log("d.geometry.coordinates", d.geometry.coordinates)
return project(d.geometry.coordinates).x
},
cy: function(d) {
return project(d.geometry.coordinates).y
},
})
}
// re-render our visualization whenever the view changes
map.on("viewreset", function() {
render()
})
map.on("move", function() {
render()
})
// render our initial visualization
render()
})
</script>
</body>
https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.5/d3.min.js
https://api.mapbox.com/mapbox.js/v2.2.3/mapbox.js