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World tour d3 v4
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| <!DOCTYPE html> | |
| <meta charset="utf-8"> | |
| <style> | |
| .country { | |
| fill: #b8b8b8; | |
| stroke: #fff; | |
| stroke-width: .5px; | |
| stroke-linejoin: round; | |
| } | |
| .graticule { | |
| fill: none; | |
| stroke: #000; | |
| stroke-opacity: .3; | |
| stroke-width: .5px; | |
| } | |
| .graticule-outline { | |
| fill: none; | |
| stroke: #333; | |
| stroke-width: 1.5px; | |
| } | |
| text { | |
| font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; | |
| font-size: 18px; | |
| font-weight: bold; | |
| text-anchor: middle; | |
| } | |
| </style> | |
| <body> | |
| <script src="https://d3js.org/d3.v4.min.js"></script> | |
| <script src="http://d3js.org/topojson.v0.min.js"></script> | |
| <script> | |
| var width = 960, | |
| height = 500; | |
| var projection = d3.geoOrthographic() | |
| .scale(248) | |
| .clipAngle(90); | |
| var path = d3.geoPath() | |
| .projection(projection); | |
| // var graticule = d3.geo.graticule() | |
| // .extent([[-180, -90], [180 - .1, 90 - .1]]); | |
| var svg = d3.select("body").append("svg") | |
| .attr("width", width) | |
| .attr("height", height); | |
| svg.append("circle") | |
| .attr("class", "graticule-outline") | |
| .attr("cx", width / 2) | |
| .attr("cy", height / 2) | |
| .attr("r", projection.scale()); | |
| d3.json("readme-world-110m.json", function(error, world) { | |
| var countries = topojson.object(world, world.objects.countries).geometries, | |
| i = -1, | |
| n = countries.length; | |
| var country = svg.selectAll(".country") | |
| .data(countries) | |
| .enter().insert("path", ".graticule") | |
| .attr("class", "country") | |
| .attr("d", path); | |
| step(); | |
| function step() { | |
| if (++i >= n) i = 0; | |
| country.transition() | |
| .style("fill", function(d, j) { return j === i ? "red" : "#b8b8b8"; }); | |
| d3.transition() | |
| .delay(250) | |
| .duration(1250) | |
| .tween("rotate", function() { | |
| var point = d3.geoCentroid(countries[i]), | |
| rotate = d3.interpolate(projection.rotate(), [-point[0], -point[1]]); | |
| return function(t) { | |
| projection.rotate(rotate(t)); | |
| country.attr("d", path); | |
| }; | |
| }) | |
| .transition() | |
| .on("end", step); | |
| } | |
| }); | |
| </script> |
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