Using D3 to show USGS shale-gas data from a national assessment that was completed in 2012. You can run your mouse over each region to see related metadata.
The state boundaries come from Natural Earth. You can click on a state to zoom in/out.
Last active
December 20, 2015 06:49
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USGS shale-gas data
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| <!DOCTYPE html> | |
| <meta charset="utf-8"> | |
| <title>shale</title> | |
| <script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.5/d3.min.js"></script> | |
| <script src="https://cdnjs.cloudflare.com/ajax/libs/topojson/1.6.19/topojson.js"></script> | |
| <script src="https://cdnjs.cloudflare.com/ajax/libs/queue-async/1.0.7/queue.min.js"></script> | |
| <style> | |
| svg { | |
| stroke-width: 1.5; | |
| } | |
| .feature { | |
| stroke: Orange; | |
| fill: Orange; | |
| fill-opacity: .3; | |
| } | |
| .feature:hover { | |
| stroke: Black; | |
| fill: gray; | |
| } | |
| .tooltip { | |
| margin: 20px 20px 20px 20px; | |
| background-color: #D3D3D3; /* light gray */ | |
| border-style: solid; | |
| padding: 5px 5px 5px 5px; | |
| font-size: 1.25em; | |
| position: absolute; | |
| z-index: 100; | |
| } | |
| </style> | |
| <body> | |
| <script> | |
| var width = 960, | |
| height = 500, | |
| centered; | |
| var svg = d3.select("body").append("svg") | |
| .attr("width", width) | |
| .attr("height", height) | |
| .append("g"); | |
| var path = d3.geo.path(); | |
| var tooltip = d3.select("body") | |
| .append("div") | |
| .attr("class", "tooltip") | |
| .style("visibility", "hidden"); | |
| queue() | |
| .defer(d3.json, "data.json") | |
| .defer(d3.json, "us.json") | |
| .await(ready); | |
| function ready(error, gas, us) { | |
| if (error) return console.error(error); | |
| svg.selectAll("path") | |
| .data(us.objects.us.geometries.map(function(d) { return topojson.feature(us, d); })) | |
| .enter() | |
| .append("path") | |
| .style("fill", "lightgray") | |
| .style("stroke", "black") | |
| .attr("d", path) | |
| .on("click", clicked); | |
| svg.selectAll(".feature") | |
| .data(Object.keys(gas.objects).map(function(d) { return topojson.feature(gas, gas.objects[d].geometries[0]); })) | |
| .enter() | |
| .append("path") | |
| .attr("class","feature") | |
| .attr("d", path) | |
| .on("mouseover", showTooltip) | |
| .on("mousemove", moveTooltip) | |
| .on("mouseout", hideTooltip) | |
| .on("click", clicked); | |
| }; | |
| function showTooltip(d) { | |
| tooltip[0][0].innerHTML = d.properties.ASSESSNAME + "<br>" + d.properties.PROV_NAME; | |
| tooltip.style("visibility", "visible"); | |
| tooltip.style("top", (d3.event.pageY-10)+"px") | |
| .style("left",(d3.event.pageX+20)+"px"); | |
| } | |
| function moveTooltip(d) { | |
| tooltip.style("top", (d3.event.pageY-10)+"px") | |
| .style("left",(d3.event.pageX+20)+"px"); | |
| } | |
| function hideTooltip(d) { | |
| tooltip.style("visibility", "hidden"); | |
| } | |
| function clicked(d) { | |
| var x, y, k; | |
| if (d && centered !== d) { | |
| var centroid = path.centroid(d); | |
| x = centroid[0]; | |
| y = centroid[1]; | |
| k = 4; | |
| centered = d; | |
| } else { | |
| x = width / 2; | |
| y = height / 2; | |
| k = 1; | |
| centered = null; | |
| } | |
| svg.selectAll("path") | |
| .classed("active", centered && function(d) { return d === centered; }); | |
| svg.transition() | |
| .duration(750) | |
| .attr("transform", "translate(" + width / 2 + "," + height / 2 + ")scale(" + k + ")translate(" + -x + "," + -y + ")") | |
| .style("stroke-width", 1.5 / k + "px"); | |
| } | |
| </script> |
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