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December 11, 2015 02:38
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A satellite projection with a few interesting UI elements, as well as a simple geo-located bar chart.
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| <!DOCTYPE html> | |
| <meta charset="utf-8"> | |
| <style> | |
| path { | |
| fill: none; | |
| stroke-linejoin: round; | |
| stroke-linecap: round; | |
| } | |
| .graticule { | |
| fill: none; | |
| stroke: #777; | |
| } | |
| .boundary { | |
| fill: #ccc; | |
| fill-opacity: .8; | |
| stroke: #000; | |
| } | |
| .land-fill { | |
| stroke: #40053f; | |
| stroke-width: 4px; | |
| } | |
| .state-boundary { | |
| stroke: #40053f; | |
| stroke-width: 3px; | |
| } | |
| .county-boundary { | |
| fill: #FFEBCD; | |
| stroke-dasharray: 5, 3, 9, 2; | |
| stroke: #7b0c4c; | |
| stroke-width: .5px; | |
| } | |
| .routes { | |
| stroke-dasharray: 2, 4, 5, 3; | |
| } | |
| .statenames { | |
| font: 20px/1.4 "Helvetica Neue", Arial, Helvetica, sans-serif; | |
| } | |
| .statenameshalo { | |
| font: 20px/1.4 "Helvetica Neue", Arial, Helvetica, sans-serif; | |
| stroke: white; | |
| stroke-width: 3px; | |
| fill: white; | |
| opacity: .5; | |
| } | |
| </style> | |
| <body> | |
| <script src="http://d3js.org/d3.v3.min.js"></script> | |
| <script src="http://d3js.org/d3.geo.projection.v0.min.js"></script> | |
| <script src="http://d3js.org/topojson.v0.min.js"></script> | |
| <script> | |
| var width = 960, height = 960; | |
| scaleVal = 12500; | |
| distanceVal = 1.11; | |
| rotateVal = 30; | |
| clipVal = 15; | |
| countyColors = ["#f0b103", "#ffb202", "#f6b623", "#ffbc02", "#ffb215"] | |
| projection = d3.geo.satellite() | |
| .distance(distanceVal) | |
| .scale(scaleVal) | |
| .rotate([121.00, -35.50, 20]) | |
| .center([-4, 5]) | |
| .tilt(60) | |
| .clipAngle(clipVal); | |
| var graticule = d3.geo.graticule() | |
| .extent([[-135, 24], [-66, 55]]) | |
| .step([1, 1]); | |
| path = d3.geo.path() | |
| .projection(projection); | |
| var svg = d3.select("body").append("svg") | |
| .attr("width", width) | |
| .attr("height", height); | |
| svg.append("path") | |
| .datum(graticule) | |
| .attr("class", "graticule") | |
| .attr("d", path); | |
| d3.json("us.json", function(error, us) { | |
| svg.append("path") // solid white fill | |
| .datum(topojson.mesh(us, us.objects.land)) | |
| .attr("d", path) | |
| .attr("class", "land-fill"); | |
| svg.selectAll(".county") | |
| .data(topojson.object(us, us.objects.counties).geometries) | |
| .enter().insert("path") | |
| .attr("class", "county-boundary") | |
| .attr("d", path) | |
| .style("fill", function(d,i) {return countyColors[i%5]}) | |
| .on("mouseover", function(d) { d3.select(this).transition().duration(500).style("stroke-width", 5).style("stroke-opacity", .5); | |
| }).on("mouseout", function() { | |
| d3.select(this).transition().duration(500).style("stroke-width", .5).style("stroke-opacity", 1); | |
| });; | |
| svg.append("path") // thick grey stroke for internal state boundaries | |
| .datum(topojson.mesh(us, us.objects.states, function(a, b) { return a.id !== b.id; })) | |
| .attr("d", path) | |
| .attr("class", "state-boundary"); | |
| sampleData = [{"name": "San Francisco", "coordinates": [-122.417,37.783], "barheight": 100}, | |
| {"name": "Sacramento", "coordinates": [-121.505,40.488], "barheight": 30}, | |
| {"name": "Portland", "coordinates": [-122.682,45.52], "barheight": 50} | |
| ] | |
| bars = svg.selectAll("g") | |
| .data(sampleData) | |
| .enter() | |
| .append("g") | |
| .attr("class", "bars") | |
| .attr("transform", function(d) {return "translate(" + projection(d.coordinates) + ")";}); | |
| bars.append("rect") | |
| .attr('height', function(d) {return d.barheight}) | |
| .attr('width', 10) | |
| .attr('y', function(d) {return -(d.barheight)}) | |
| .attr("class", "bars") | |
| .style("fill", "purple") | |
| .style("stroke", "white") | |
| .style("stroke-width", 2) | |
| ; | |
| bars.append("text") | |
| .text(function(d) {return d.name}) | |
| .attr("x", -10) | |
| .attr("y", 18); | |
| bars.transition().duration(500).style("opacity", 1) | |
| svg.selectAll("text.statenameshalo").data(["Oregon","California"]).enter().append("text").text(function(d) {return d}).attr("x", 390).attr("y", function(d,i) {return 328 + (i * 33)}).attr("class","statenameshalo").attr("transform", "rotate(-15)") | |
| svg.selectAll("text.statenames").data(["Oregon","California"]).enter().append("text").text(function(d) {return d}).attr("x", 390).attr("y", function(d,i) {return 328 + (i * 33)}).attr("class","statenames").attr("transform", "rotate(-15)") | |
| }); | |
| d3.select(self.frameElement).style("height", height + "px"); | |
| </script> |
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