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classwork07
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| license: mit |
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| <!DOCTYPE html> | |
| <meta charset="utf-8"> | |
| <style> | |
| body { | |
| font: 10px sans-serif; | |
| } | |
| .axis path, | |
| .axis line { | |
| fill: none; | |
| stroke: #000; | |
| shape-rendering: crispEdges; | |
| } | |
| .dot { | |
| stroke: #000; | |
| } | |
| </style> | |
| <body> | |
| <script src="//d3js.org/d3.v3.min.js"></script> | |
| <script> | |
| var margin = {top: 20, right: 20, bottom: 30, left: 40}, | |
| width = 960 - margin.left - margin.right, | |
| height = 500 - margin.top - margin.bottom; | |
| var x = d3.scale.linear() | |
| .range([0, width]); | |
| var y = d3.scale.linear() | |
| .range([height, 0]); | |
| var color = d3.scale.category10(); | |
| var xAxis = d3.svg.axis() | |
| .scale(x) | |
| .orient("bottom"); | |
| var yAxis = d3.svg.axis() | |
| .scale(y) | |
| .orient("left"); | |
| var svg = d3.select("body").append("svg") | |
| .attr("width", width + margin.left + margin.right) | |
| .attr("height", height + margin.top + margin.bottom) | |
| .append("g") | |
| .attr("transform", "translate(" + margin.left + "," + margin.top + ")"); | |
| var url = "https://earthquake.usgs.gov/earthquakes/feed/v1.0/summary/all_week.geojson"; | |
| d3.json(url, function(error, data) { | |
| if (error) throw error; | |
| junk = data.features; | |
| quakes = data.features.map(function(d) { | |
| return [d.geometry.coordinates[2], +d.properties.mag]; | |
| }); | |
| x.domain(d3.extent(quakes, function(d) { return d[0]; })).nice(); | |
| y.domain(d3.extent(quakes, function(d) { return d[1]; })).nice(); | |
| svg.append("g") | |
| .attr("class", "x axis") | |
| .attr("transform", "translate(0," + height + ")") | |
| .call(xAxis) | |
| .append("text") | |
| .attr("class", "label") | |
| .attr("x", width) | |
| .attr("y", -6) | |
| .style("text-anchor", "end") | |
| .text("longitude"); | |
| svg.append("g") | |
| .attr("class", "y axis") | |
| .call(yAxis) | |
| .append("text") | |
| .attr("class", "label") | |
| .attr("transform", "rotate(-90)") | |
| .attr("y", 6) | |
| .attr("dy", ".71em") | |
| .style("text-anchor", "end") | |
| .text("magnitude") | |
| svg.selectAll(".dot") | |
| .data(quakes) | |
| .enter().append("circle") | |
| .attr("class", "dot") | |
| .attr("r", 3.5) | |
| .attr("cx", function(d) { return x(d[0]); }) | |
| .attr("cy", function(d) { return y(d[1]); }); | |
| //.style("fill", function(d) { return color(d.species); }); | |
| var legend = svg.selectAll(".legend") | |
| .data(color.domain()) | |
| .enter().append("g") | |
| .attr("class", "legend") | |
| .attr("transform", function(d, i) { return "translate(0," + i * 20 + ")"; }); | |
| legend.append("rect") | |
| .attr("x", width - 18) | |
| .attr("width", 18) | |
| .attr("height", 18) | |
| .style("fill", color); | |
| legend.append("text") | |
| .attr("x", width - 24) | |
| .attr("y", 9) | |
| .attr("dy", ".35em") | |
| .style("text-anchor", "end") | |
| .text(function(d) { return d; }); | |
| }); | |
| </script> |
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