Built with blockbuilder.org
Last active
May 31, 2020 21:42
-
-
Save fogonwater/d47d7638af5634437ad561b6582fb393 to your computer and use it in GitHub Desktop.
fresh block
This file contains hidden or 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
| license: mit |
This file contains hidden or 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> | |
| <head> | |
| <meta charset="utf-8"> | |
| <script src="https://d3js.org/d3.v4.min.js"></script> | |
| <!-- Color scale --> | |
| <script src="https://d3js.org/d3-scale-chromatic.v1.min.js"></script> | |
| <style> | |
| body { margin:0;position:fixed;top:0;right:0;bottom:0;left:0; font-family: Helvectica, Arial, sans-serif;} | |
| </style> | |
| </head> | |
| <body> | |
| <div id="my_dataviz"></div> | |
| <script> | |
| console.clear() | |
| // set the dimensions and margins of the graph | |
| var width = 450 | |
| height = 450 | |
| margin = 40 | |
| // The radius of the pieplot is half the width or half the height (smallest one). I subtract a bit of margin. | |
| var radius = Math.min(width, height) / 2 - margin | |
| // append the svg object to the div called 'my_dataviz' | |
| var svg = d3.select("#my_dataviz") | |
| .append("svg") | |
| .attr("width", width) | |
| .attr("height", height) | |
| .append("g") | |
| .attr("transform", "translate(" + width / 2 + "," + height / 2 + ")"); | |
| // Create dummy data | |
| //var data = {"Climate change": 2, "Acidification": 3, "Chemicals":4, "Nitrogen & phosphorus":4, "Freshwater":1, "Land conversion":4, "Biodiversity":1, "Air pollution":3, "Ozone":4} | |
| var data = {"Huarerenga": 2, "Tai waikawa": 3, "Chemicals":4, "Nitrogen & phosphorus":4, "Freshwater":1, "Land conversion":4, "Biodiversity":1, "Air pollution":3, "Ozone":4} | |
| // set the color scale | |
| var color = d3.scaleOrdinal() | |
| .domain(data) | |
| .range(d3.schemeSet2); | |
| // Compute the position of each group on the pie: | |
| var pie = d3.pie() | |
| .value(d => 1) | |
| var data_ready = pie(d3.entries(data)) | |
| // Now I know that group A goes from 0 degrees to x degrees and so on. | |
| // shape helper to build arcs: | |
| var arcGen = d3.arc() | |
| .innerRadius(100) | |
| .outerRadius(radius) | |
| // Build the pie chart: Basically, each part of the pie is a path that we build using the arc function. | |
| svg | |
| .selectAll('mySlices') | |
| .data(data_ready) | |
| .enter() | |
| .append('path') | |
| .attr('d', arcGen) | |
| .attr('fill', d => 'steelblue' ) | |
| .attr("stroke", "black") | |
| .attr("d", (d, i) => arcGen.innerRadius(radius - (d.data.value * 6))(d, i)) | |
| .style("stroke-width", "1px") | |
| .style("opacity", 0.7) | |
| // Now add the annotation. Use the centroid method to get the best coordinates | |
| svg | |
| .selectAll('mySlices') | |
| .data(data_ready) | |
| .enter() | |
| .append('text') | |
| .text(d => d.data.key) | |
| .attr("transform", d => "translate(" + arcGen.centroid(d) + ")") | |
| .style("text-anchor", "middle") | |
| .style("font-size", 17) | |
| </script> | |
| </body> |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment