Interrupted rotating Mollweide hemispheres.
Created
September 14, 2012 21:32
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Interrupted Mollweide Hemispheres
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| <!DOCTYPE html> | |
| <meta charset="utf-8"> | |
| <style> | |
| body { | |
| padding: 37px 54px; | |
| } | |
| .background { | |
| fill: #a4bac7; | |
| } | |
| .foreground { | |
| fill: none; | |
| stroke: #333; | |
| stroke-width: 1.5px; | |
| } | |
| .graticule { | |
| fill: none; | |
| stroke: #fff; | |
| stroke-width: .5px; | |
| } | |
| .graticule:nth-child(2n) { | |
| stroke-dasharray: 2,2; | |
| } | |
| .land { | |
| fill: #d7c7ad; | |
| stroke: #766951; | |
| } | |
| .boundary { | |
| fill: none; | |
| stroke: #a5967e; | |
| } | |
| </style> | |
| <body> | |
| <script src="http://d3js.org/d3.v3.min.js"></script> | |
| <script src="https://raw.github.com/d3/d3-plugins/master/geo/projection/projection.js"></script> | |
| <script> | |
| var width = 425, | |
| height = 425; | |
| var graticule = d3.geo.graticule(), | |
| graticule90 = d3.geo.graticule() | |
| .extent([[-90, -90], [90, 90]]); | |
| var projection = d3.geo.mollweide() | |
| .translate([width / 2 + .5, height / 2 + .5]) | |
| .clipAngle(90), | |
| path = d3.geo.path().projection(projection); | |
| var svg = d3.select("body").selectAll("svg") | |
| .data([{x: 0, y: 0, z: 0}, {x: 0, y: 0, z: 180}]) | |
| .enter().append("svg") | |
| .attr("width", width + 1) | |
| .attr("height", height + 1); | |
| svg.append("path") | |
| .datum(graticule90.outline) | |
| .attr("class", "background") | |
| .attr("d", path); | |
| svg.append("path") | |
| .datum(graticule90.outline) | |
| .attr("class", "foreground") | |
| .attr("d", path); | |
| d3.json("readme-boundaries.json", function(err, boundaries) { | |
| d3.json("readme-world-countries.json", function(err, land) { | |
| svg.insert("g", ".graticule") | |
| .attr("class", "boundary") | |
| .selectAll("path") | |
| .data(boundaries.features) | |
| .enter().append("path"); | |
| svg.insert("g", ".graticule,.boundary") | |
| .attr("class", "land") | |
| .selectAll("path") | |
| .data(land.features) | |
| .enter().append("path"); | |
| d3.timer(function() { | |
| svg.call(hemisphere, boundaries, land); | |
| }); | |
| }); | |
| }); | |
| function hemisphere(svg, boundaries, land) { | |
| svg.each(function(d, i) { | |
| d.z++; | |
| d.y += i ? -1 : 1; | |
| projection.rotate([d.z, d.y, 0]); | |
| var svg = d3.select(this); | |
| svg.selectAll(".land, .boundary").selectAll("path") | |
| .attr("d", path); | |
| var g = svg.selectAll(".graticule") | |
| .data(graticule.lines); | |
| g.enter().append("path").attr("class", "graticule"); | |
| g.attr("d", path); | |
| g.exit().remove(); | |
| }); | |
| } | |
| </script> |
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