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forked from sxywu's block: DS July: Code 1
forked from sxywu's block: DS July: Code 2
forked from sxywu's block: DS July: Code 3
forked from sxywu's block: DS July: Code 4
forked from sxywu's block: DS July: Code 5
forked from sxywu's block: DS July: Code 6
forked from sxywu's block: DS July: Code 7
forked from sxywu's block: Film Flowers, All
forked from anonymous's block: Film Flowers, Refactored
forked from sxywu's block: Film Flowers, Single Scaled Complete
forked from sxywu's block: Film Flowers, Single Update Complete
forked from sxywu's block: Film Flowers, Single Update Starter
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<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,
}
});
// 1. set domain for scales
// size scale = rating
// number of petals scale = number of votes
const sizeExtent = d3.extent(movies, d => d.rating);
const numPetalsExtent = d3.extent(movies, d => d.votes);
// set domain on scales
sizeScale.domain(sizeExtent);
numPetalsScale.domain(numPetalsExtent);
// function that calculates data for the petals
// and draws flower with enter-update-exit
function drawFlower(index) {
// 2. create petal data for selected movie
var numOfPetalsCalc = (movie) => numPetalsScale(movie.votes);
var petalScaleCalc = (movie) => sizeScale(movie.rating);
var petalData = function(movie) {
const numOfPetals = numOfPetalsCalc(movie);
const petalScale = petalScaleCalc(movie);
return _.times(numOfPetals, (i) => ({
rotate: (360 / numOfPetals) * i,
petalScale: petalScale,
path: pathLookup[movie.pg].join(' ')
}));
}
// 3. set data and enter-update-exit
var petal = svg.selectAll('path')
.data(petalData(movies[index]), d => d);
// Exit
petal.exit().remove();
// Enter
var enter = petal.enter().append('path');
// Enter + Update
petal = petal.merge(enter)
.attr('transform', d => {
return `translate(100,100)rotate(${d.rotate})scale(${d.petalScale})`
})
.attr('d', d => d.path)
.attr('fill', (d, i) => d3.interpolateRainbow(i / numOfPetalsCalc(movies[index])))
.attr('stroke', '#000');
}
let index = 0;
drawFlower(0);
// WILL eventually crash your browser,
// uncomment at your own risk.
setInterval(() => {
index += 1;
if (index === movies.length) {
index = 0;
}
drawFlower(index);
}, 1000);
});
</script>
</body>
https://d3js.org/d3.v4.min.js
https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.13.1/lodash.js