Last active
April 17, 2021 06:45
A10: Proportional Symbols
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| <!DOCTYPE html> | |
| <html lang=""> | |
| <meta charset="utf-8"> | |
| <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0"> | |
| <style> | |
| .states { | |
| fill: rgb(204, 204, 204); | |
| stroke: #fff; | |
| } | |
| .symbol { | |
| fill: steelblue; | |
| fill-opacity: .8; | |
| stroke: #fff; | |
| } | |
| </style> | |
| <body> | |
| <script src="https://d3js.org/d3.v3.min.js"></script> | |
| <script src="https://d3js.org/topojson.v1.min.js"></script> | |
| <script src="https://d3js.org/queue.v1.min.js"></script> | |
| <script src="proportional-symbols.js"></script> | |
| </body> | |
| </html> |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| var width = 960, | |
| height = 500; | |
| var radius = d3.scale.sqrt().domain([0, 1e6]).range([0, 10]); | |
| var path = d3.geo.path(); | |
| var svg = d3 | |
| .select("body") | |
| .append("svg") | |
| .attr("width", width) | |
| .attr("height", height); | |
| svg | |
| .append("text") | |
| .attr("font-family", "Arial, Helvetica, sans-serif") | |
| .attr("transform", "translate(450,30)") | |
| .style("text-anchor", "middle") | |
| .attr("fill", "black") | |
| .text("Population per State vs Expensive States"); | |
| queue() | |
| .defer(d3.json, "us-all.json") | |
| .defer(d3.json, "us-state-centroids.json") | |
| .await(ready); | |
| function ready(error, us, centroid) { | |
| if (error) throw error; | |
| svg | |
| .append("path") | |
| .attr("class", "states") | |
| .datum(topojson.feature(us, us.objects.states)) | |
| .attr("d", path); | |
| svg | |
| .selectAll(".symbol") | |
| .data( | |
| centroid.features.sort(function (a, b) { | |
| return b.properties.population - a.properties.population; | |
| }) | |
| ) | |
| .enter() | |
| .append("path") | |
| .attr("class", "symbol") | |
| .attr( | |
| "d", | |
| path.pointRadius(function (d) { | |
| return radius(d.properties.population); | |
| }) | |
| ) | |
| .style("fill", function (d) { | |
| if (d.properties.hasOwnProperty("cost")) { | |
| return "rgb(0, 224, 37)"; | |
| } | |
| }) | |
| .append("title") | |
| .text(function (d) { | |
| nfObject = new Intl.NumberFormat("en-US"); | |
| return ( | |
| d.properties.name + | |
| "\n" + | |
| "Population: " + | |
| nfObject.format(d.properties.population) | |
| ); | |
| }); | |
| } |
Loading
Sorry, something went wrong. Reload?
Sorry, we cannot display this file.
Sorry, this file is invalid so it cannot be displayed.
Loading
Sorry, something went wrong. Reload?
Sorry, we cannot display this file.
Sorry, this file is invalid so it cannot be displayed.
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment