Created
October 23, 2015 21:56
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Simple demo of d3 ability to display geojson
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<!DOCTYPE html> | |
<html> | |
<head> | |
<title>Pipeline test</title> | |
<meta charset="UTF-8"> | |
<meta name="description" content="" /> | |
<meta name="keywords" content="" /> | |
<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.6/d3.min.js" charset="utf-8"></script> | |
<style> | |
.pipes { | |
stroke-width: 2; | |
fill: none; | |
stroke-linejoin: "round"; | |
} | |
.hp { | |
stroke: #7a9e00; | |
} | |
.t { | |
stroke: #d9b410; | |
} | |
.streets { | |
stroke-width: 1; | |
stroke: #cbcbca; | |
stroke-linejoin: "round"; | |
} | |
/* | |
.pipes:hover { | |
stroke: #d98410; | |
} | |
*/ | |
</style> | |
</head> | |
<body> | |
<script> | |
var width = 800, | |
height = 600; | |
var svg = d3.select("body") | |
.append("svg") | |
.attr("width", width) | |
.attr("height", height); | |
var projection = d3.geo.mercator() | |
// .rotate(); | |
var path = d3.geo.path() | |
.projection(projection); | |
// Load high-pressure pipeline | |
d3.json("pipeline_hp.json", function(error, data){ | |
if (error) throw error; | |
projection | |
.scale(1) | |
.translate([0,0]); | |
var b = path.bounds(data), | |
s = .95 / Math.max((b[1][0] - b[0][0]) / width, (b[1][1] - b[0][1]) / height), | |
t = [(width - s * (b[1][0] + b[0][0])) / 2, (height - s * (b[1][1] + b[0][1])) / 2]; | |
projection | |
.scale(s) | |
.translate(t); | |
svg.append("path") | |
.datum(data) | |
.attr("class", "pipes hp") | |
.attr("d", path); | |
// Load transmission pipeline | |
d3.json("pipeline_t.json", function(error, data2){ | |
if (error) throw error; | |
svg.append("path") | |
.datum(data2) | |
.attr("class", "pipes t") | |
.attr("d", path); | |
}); | |
}); | |
</script> | |
</body> | |
</html> |
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