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@chris-creditdesign
Last active October 16, 2015 09:57
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A Pen created at CodePen.io. You can find this one at http://codepen.io/chris-creditdesign/pen/47f7cf5e9b3c4e93bc9ebfad03025107.
Learning about topoJSON form Mike Bostocks' Let’s Make a Map tutorial
http://bost.ocks.org/mike/map/
and
http://bl.ocks.org/mbostock/4183330
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Nature Paris Map</title>
<link rel="stylesheet" href="style.css">
</head>
<body>
<script src='https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.6/d3.min.js'></script>
<script src='https://cdnjs.cloudflare.com/ajax/libs/topojson/1.6.19/topojson.min.js'></script>
<script src="index.js"></script>
</body>
</html>
var width = 1000;
var height = 1000;
var color = d3.scale.linear()
.range(["#ff0000","#00ff00"])
.domain([100,0]);
var projection = d3.geo.equirectangular();
var path = d3.geo.path()
.projection(projection);
var svg = d3.select("body").append("svg")
.attr("width", width)
.attr("height", height);
svg.call(d3.behavior.zoom()
.translate([0, 0])
.scale(1)
.scaleExtent([1, 8])
.on("zoom", zoomed));
var countriesSVG = svg.append("g");
d3.json("simple-world.json", function(error, world){
var countries = topojson.feature(world, world.objects.countries).features,
neighbors = topojson.neighbors(world.objects.countries.geometries);
countriesSVG.selectAll(".country")
.data(countries)
.enter().insert("path", ".graticule")
.attr("class", "country")
.attr("d", path)
.style("fill", "#ccc");
});
function zoomed() {
svg.attr("transform", "translate(" + d3.event.translate + ") scale(" + d3.event.scale + ")");
countriesSVG.attr("transform", "translate(" + d3.event.translate + ") scale(" + d3.event.scale + ")");
}
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body {
background: #fcfcfa;
}
.stroke {
fill: none;
stroke: #000;
stroke-width: 3px;
}
.fill {
fill: #fff;
}
.graticule {
fill: none;
stroke: #777;
stroke-width: .5px;
stroke-opacity: .5;
}
.land {
fill: #222;
}
.boundary {
fill: none;
stroke: #fff;
stroke-width: .5px;
}
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