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Richo D3 Challenge #9

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Richo D3 Challenge #9

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25ce458
d3
richoandy Apr 30, 2018
88b19fc
pie
richoandy May 1, 2018
fe6adbd
fyang di index.html pakai data german, ada bar dan donut chart, fold…
richoandy May 2, 2018
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pie
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@richoandy
richoandy committed May 1, 2018
commit 88b19fc54cb470b613124f521bc5399014bf945c
87 changes: 86 additions & 1 deletion d3/index.html
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Original file line number Diff line number Diff line change
Expand Up @@ -13,7 +13,8 @@
</style>
</head>
<body>
<div id="container"></div>
<div id="container">bar chart</div>
<div id="piechart">pie chart</div>
<script>
function readData (cb) {
d3.csv("german.csv", function (data) {
Expand All @@ -23,6 +24,90 @@
cb(dataJSON)
})
}

//pieChart
readData(function (datas) {
let stateList = []
let voteList = []
datas.forEach(data => {
if (stateList.indexOf(data.state) === -1) {
stateList.push(data.state)
}
})

datas.forEach(data => {
if(data.state === stateList[13]) {
voteList.push(data)
}
})

voteList.sort(function (a, b) {
return +a.total_votes - +b.total_votes
})

voteList = voteList.splice(0, 4)
console.log(voteList)

let min = +voteList[0].total_votes
let max = +voteList[voteList.length - 1].total_votes

const colorScale = d3.scaleLinear()
.domain([min, max])
.range(['red', 'teal'])

let margin = {
top: 20,
right: 20,
bottom: 20,
left: 20
}

let width = 500 - margin.right - margin.left
let height = 500 - margin.bottom - margin.top
radius = width / 2

//arc generator
var arc = d3.arc()
.outerRadius(radius - 10)
.innerRadius(0)

var labelArc = d3.arc()
.outerRadius(radius - 50)
.innerRadius(radius - 50)


var pie = d3.pie()
.sort(null)
.value(function (d) {
return d.total_votes
})

var svg = d3.select('#piechart').append('svg')
.attr('width', width)
.attr('height', height)
.append('g')
.attr('transform', 'translate('+ width / 2 + ',' + height/2 + ')')

var g = svg.selectAll('.arc')
.data(pie(voteList))
.enter().append('g')
.attr('class', 'arc')

g.append('path')
.attr('d', arc)
.style('fill', 'teal')


g.append('text')
.attr('transform', function (d) {
return 'translate(' + labelArc.centroid(d) + ')'
})
.attr('dy', '.35em')
.text(function (d) {
console.log(d)
return d.data.area_names
})
})

readData(function (datas) {
let stateList = []
Expand Down