Created
March 26, 2017 14:04
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Geo Circles
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<html><head><meta charset="utf-8"> | |
<title>Geo Circle</title> | |
<style> | |
.button { | |
font-family: Play; | |
color: #ffffff; | |
font-size: 16px; | |
text-align: center; | |
display: inline-block; | |
-webkit-user-select: none; | |
width: 3.2%; | |
background: #303030; | |
padding: 10px 20px 10px 20px; | |
} | |
.button:hover { | |
background: #4c4d4d; | |
cursor:default; | |
} | |
</style> | |
</head><body> | |
<script src="https://d3js.org/d3.v3.min.js"></script> | |
<script src="http://d3js.org/topojson.v1.min.js"></script> | |
<script> | |
var width = 960, | |
height = 500; | |
var margins = { left: 0, top: 0, right: 0, bottom: 0 }; | |
var projection = d3.geo.albersUsa() | |
.scale(1070) | |
.translate([width / 2, height / 2]); | |
var path = d3.geo.path() | |
.projection(projection); | |
var svg = d3.select("body").append("svg") | |
.attr("width", width) | |
.attr('class','main_svg') | |
.attr("height", height+margins.top); | |
var g = svg.append("g"); | |
var countiesG = g.append("g") | |
.attr("id", "counties"); | |
d3.json("https://gist.githubusercontent.com/diggetybo/6d35e5ecd17992650d0a23896e649b25/raw/0501b427f7b060a59499a11f2c2c781ecc413874/us_ap.json", function(error, us) { | |
countiesG | |
.selectAll("path") | |
.data(topojson.feature(us, us.objects.counties).features) | |
.enter().append("path") | |
.attr("d", path) | |
.attr("stroke-width",'.5px') | |
.attr('stroke','#fff') | |
.attr('fill','#aaa'); | |
var geo_path = d3.geo.path().projection(projection); | |
var circle = d3.geo.circle().radius(100/3959*90).center([-114.52,33.75]); | |
countiesG.selectAll('.circle') | |
.enter().append('path') | |
.datum(circle) | |
.attr('class','circle') | |
.attr('d',geo_path); | |
}); | |
</script> | |
</body> | |
</html> |
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