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January 26, 2018 07:07
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| license: mit |
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| <!DOCTYPE html> | |
| <head> | |
| <meta charset="utf-8"> | |
| <script src="https://d3js.org/d3.v4.min.js"></script> | |
| <script src='https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.13.1/lodash.js'></script> | |
| <link href='https://fonts.googleapis.com/css?family=Libre+Baskerville:400,700' rel='stylesheet' type='text/css'> | |
| <style> | |
| svg { | |
| width: 600px; | |
| height: 20000px; | |
| } | |
| </style> | |
| </head> | |
| <body> | |
| <svg></svg> | |
| <script> | |
| const width = 600; | |
| const height = 600; | |
| const petalPaths = [[ | |
| 'M0,0', | |
| "C50,50 50,100 0,100", | |
| "C-50,100 -50,50 0,0" | |
| ], | |
| [ | |
| 'M-35,0', | |
| 'C-25,25 25,25 35,0', | |
| 'C50,25 25,75 0,100', | |
| 'C-25,75 -50,25 -35,0' | |
| ], | |
| [ | |
| 'M0,0', | |
| 'C50,40 50,70 20,100', | |
| 'L0,85', | |
| 'L-20,100', | |
| 'C-50,70 -50,40 0,0' | |
| ], | |
| [ | |
| 'M0,0', | |
| 'C50,25 50,75 0,100', | |
| 'C-50,75 -50,25 0,0' | |
| ]]; | |
| // instantiate scales and petal path lookup | |
| const sizeScale = d3.scaleLinear() | |
| .range([0.1, 1]); | |
| const numPetalsScale = d3.scaleQuantize() | |
| .range(_.range(5, 10)); | |
| const pathLookup = { | |
| G: petalPaths[0], | |
| PG: petalPaths[1], | |
| 'PG-13': petalPaths[2], | |
| R: petalPaths[3], | |
| }; | |
| // grab svg | |
| const svg = d3.select(' svg'); | |
| /***************************************************** | |
| ** get movie data | |
| ******************************************************/ | |
| d3.json('movies.json', function(movies) { | |
| movies = _.map(movies, movie => { | |
| return { | |
| rating: ++movie.imdbRating, | |
| votes: parseInt(movie.imdbVotes.replace(/\,/g, '')), | |
| year: ++movie.Year, | |
| title: movie.Title, | |
| pg: movie.Rated, | |
| } | |
| }); | |
| // set domain for scales | |
| const ratingExtent = d3.extent(movies, d => d.rating); | |
| const votesExtent = d3.extent(movies, d => d.votes); | |
| sizeScale.domain(ratingExtent); | |
| numPetalsScale.domain(votesExtent); | |
| // create petal data for the first movie | |
| const numPetals = numPetalsScale(movies[0]); | |
| const petalsData = _.times(numPetals, (i) => { | |
| return { | |
| numPetals, | |
| size: sizeScale(movies[0].rating), | |
| path: pathLookup[movies[0].pg] | |
| }; | |
| }); | |
| // draw the petals | |
| svg.selectAll('.petal') | |
| .data(petalsData).enter().append('path') | |
| .classed('petal', true) | |
| .attr('transform', (d, i) => { | |
| const angle = i * (360 / d.numPetals); | |
| return `translate(100, 100)rotate(${angle})scale(${d.size})`; | |
| }) | |
| .attr('d', d => d.path) | |
| .attr('fill', 'none') | |
| .attr('stroke', '#444') | |
| .attr('stroke-width', 2) | |
| }); | |
| </script> | |
| </body> |
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