The Aitoff Projection showing land and boundary lines from Natural Earth. The geo.winkel3 and geo.aitoff projections are available in the winkel3 plugin. See also the Winkel Tripel Projection.
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Aitoff
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| <!DOCTYPE html> | |
| <meta charset="utf-8"> | |
| <style> | |
| .ocean { | |
| fill: #a4bac7; | |
| } | |
| .outline { | |
| fill: none; | |
| stroke: #333; | |
| stroke-width: 1.5px; | |
| } | |
| .line { | |
| fill: none; | |
| stroke: #fff; | |
| stroke-width: .5px; | |
| } | |
| .line :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.v2.min.js"></script> | |
| <script src="https://raw.github.com/d3/d3-plugins/master/winkel3/winkel3.js"></script> | |
| <script> | |
| var width = 960, | |
| height = 500; | |
| var xStepsBig = d3.range(-180, 180 + 1, 22.5), | |
| yStepsBig = d3.range(-90, 90 + 1, 22.5), | |
| xStepsSmall = d3.range(-180, 180 + 1, 2), | |
| yStepsSmall = d3.range(-90, 90 + 1, 2), | |
| xLines = xStepsBig.map(function(x) { return yStepsSmall.map(function(y) { return [x, y]; }); }), | |
| yLines = yStepsBig.map(function(y) { return xStepsSmall.map(function(x) { return [x, y]; }); }), | |
| outline = yStepsSmall.map(function(y) { return [180, y]; }).concat(yStepsSmall.map(function(y) { return [-180, -y]; })); | |
| var projection = d3.geo.aitoff() | |
| .translate([width / 2 - .5, height / 2 - .5]); | |
| var path = d3.geo.path() | |
| .projection(projection); | |
| var svg = d3.select("body").append("svg") | |
| .attr("width", width) | |
| .attr("height", height); | |
| svg.append("path") | |
| .datum(outline) | |
| .attr("class", "ocean") | |
| .attr("d", draw); | |
| svg.append("g") | |
| .attr("class", "x line") | |
| .selectAll("path") | |
| .data(xLines) | |
| .enter().append("path") | |
| .attr("d", draw); | |
| svg.append("g") | |
| .attr("class", "y line") | |
| .selectAll("path") | |
| .data(yLines) | |
| .enter().append("path") | |
| .attr("d", draw); | |
| svg.append("path") | |
| .datum(outline) | |
| .attr("class", "outline") | |
| .attr("d", function(d) { return draw(d) + "Z"; }); | |
| d3.json("/d/3682676/readme-boundaries.json", function(collection) { | |
| svg.insert("g", ".line") | |
| .attr("class", "boundary") | |
| .selectAll("path") | |
| .data(collection.features) | |
| .enter().append("path") | |
| .attr("d", path); | |
| }); | |
| d3.json("/d/3682676/readme-land.json", function(collection) { | |
| svg.insert("g", ".line,.boundary") | |
| .attr("class", "land") | |
| .selectAll("path") | |
| .data(collection.features) | |
| .enter().append("path") | |
| .attr("d", path); | |
| }); | |
| function draw(coordinates) { | |
| return "M" + coordinates.map(projection).join("L"); | |
| } | |
| </script> |
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