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| <!DOCTYPE html> | |
| <meta charset="utf-8"> | |
| <style> | |
| .country { | |
| fill: green; | |
| stroke: darkgrey; | |
| stroke-width: .5px; | |
| stroke-linejoin: round; | |
| } | |
| .background { | |
| fill: lightblue; | |
| } | |
| .graticule { | |
| fill: none; | |
| stroke: #000; | |
| stroke-opacity: .3; | |
| stroke-width: .5px; | |
| } | |
| .graticule-outline { | |
| fill: none; | |
| stroke: #333; | |
| stroke-width: 1.5px; | |
| } | |
| .cityPoint { | |
| fill: yellow; | |
| stroke: black; | |
| opacity:.6; | |
| } | |
| .labels { | |
| font: 12px sans-serif; | |
| fill: black; | |
| } | |
| </style> | |
| <body> | |
| <script src="http://d3js.org/d3.v3.js"></script> | |
| <script src="http://d3js.org/topojson.v0.min.js"></script> | |
| <script> | |
| var width = 300, | |
| height = 250; | |
| var rotate = [.001, 0], | |
| velocity = [.013, 0], | |
| time = Date.now(); | |
| var centroid = d3.geo.path() | |
| .projection(function(d) { return d; }) | |
| .centroid; | |
| var projection = d3.geo.orthographic() | |
| .scale(125) | |
| .translate([width/2, height/2]) | |
| .clipAngle(90); | |
| var path = d3.geo.path() | |
| .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); | |
| var ocean = svg.append("path") | |
| .datum({type: "Sphere"}) | |
| .attr("class", "background") | |
| .attr("d", path); | |
| var graticuleLine = svg.append("path") | |
| .attr("class", "graticule") | |
| .attr("d", path); | |
| 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) | |
| var cities = createCities(); | |
| var cityPoints = svg.append("g").attr("class", "points") | |
| .selectAll("path").data(cities) | |
| .enter().append("path") | |
| .attr("class", "cityPoint") | |
| .attr("d", path); | |
| svg.append("g") | |
| .attr("class", "label_background") | |
| .selectAll("rect").data(cities) | |
| .enter().append("rect") | |
| .attr("class", "label") | |
| .attr({x: 0, y: -11, height: 12}) | |
| .attr("width", function(d,i) { return i === 0 ? 40 : 69;}) | |
| .style("fill", "yellow") | |
| .style("opacity", 0.5); | |
| svg.append("g").attr("class","labels") | |
| .selectAll("text").data(cities) | |
| .enter().append("text") | |
| .attr("class", "label") | |
| .attr("text-anchor", "start") | |
| .text(function(d) { return d.properties.name }) | |
| position_labels(); | |
| debugger; | |
| rotateGlobe(); | |
| // shrinkGlobe(); | |
| function createCities() { | |
| var cities = [ | |
| { "type": "Feature", "properties": { "name": "Munich" }, | |
| "geometry": { "type": "Point", "coordinates": [ 11.581981, 48.135125 ] } }, | |
| { "type": "Feature", "properties": { "name": "San Antonio" }, | |
| "geometry": { "type": "Point", "coordinates": [ -98.5, 29.4167 ] } } | |
| ]; | |
| return cities; | |
| } | |
| function position_labels() { | |
| var centerPos = projection.invert([width/2,height/2]); | |
| var arc = d3.geo.greatArc(); | |
| svg.selectAll(".label") | |
| .attr("transform", function(d) { | |
| var loc = projection(d.geometry.coordinates), | |
| x = loc[0], | |
| y = loc[1]; | |
| var offset = 5; | |
| return "translate(" + (x+offset) + "," + (y-2) + ")" | |
| }) | |
| .style("display",function(d) { | |
| var d = arc.distance({source: d.geometry.coordinates, target: centerPos}); | |
| return (d > 1.57) ? 'none' : 'inline'; | |
| }); | |
| } | |
| function rotateGlobe() { | |
| d3.timer(function() { | |
| var dt = Date.now() - time; | |
| projection.rotate([rotate[0] + velocity[0] * dt, rotate[1] + velocity[1] * dt]); | |
| redraw(); | |
| }); | |
| } | |
| function shrinkGlobe() { | |
| redrawTransition(2500); | |
| // projection.scale(200); | |
| // redrawTransition(2500); | |
| } | |
| function redraw() { | |
| country.attr("d", path); | |
| graticuleLine.attr("d", path); | |
| cityPoints.attr("d", path); | |
| position_labels(); | |
| } | |
| function redrawTransition(mSeconds) { | |
| projection.scale(50); | |
| ocean.transition().duration(mSeconds).attr("d", path); | |
| country.transition().duration(mSeconds).attr("d", path); | |
| graticuleLine.transition().duration(mSeconds).attr("d", path); | |
| cityPoints.attr("d", path); | |
| position_labels(); | |
| } | |
| }); | |
| </script> |
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