Last active
September 9, 2020 08:44
React + D3 example
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
import React from 'react'; | |
import { autobind } from 'core-decorators'; | |
import d3 from 'd3'; | |
import moment from 'moment'; | |
import classNames from 'classnames'; | |
export default class EvolutionChart extends React.Component { | |
static propTypes = { | |
investment: React.PropTypes.object.isRequired, | |
size: React.PropTypes.array, | |
wallet: React.PropTypes.object.isRequired | |
}; | |
static defaultProps = { | |
size: [0, 0] | |
}; | |
componentDidMount() { | |
this.prepareData(); | |
window.addEventListener('resize', this.prepareSize); | |
} | |
componentDidUpdate(prevProps) { | |
if (this.state.ready) { | |
this.plotChart(); | |
} | |
} | |
componentWillUnmount() { | |
window.removeEventListener('resize', this.prepareSize); | |
} | |
prepareData() { | |
const investment = this.props.investment; | |
const wallet = this.props.wallet; | |
const assetsByClass = {}; | |
const assets = []; | |
const firstDate = moment(wallet.requests.data); | |
const lastDate = moment(investment.position.data[investment.position.data.length - 1].date).utc(); | |
Object.keys(investment.assets.data).forEach(d => { | |
const asset = investment.assets.data[d]; | |
if (!assetsByClass[asset.marketingType]) { | |
assetsByClass[asset.marketingType] = {}; | |
} | |
}); | |
assetsByClass.cash = {}; | |
investment.position.data.forEach(d => { | |
Object.keys(assetsByClass).forEach(a => { | |
assetsByClass[a][d.date] = 0; | |
}); | |
assetsByClass.cash[d.date] += d.cash; | |
Object.keys(d.positions).forEach(e => { | |
const asset = d.positions[e]; | |
assetsByClass[investment.assets.data[e].marketingType][d.date] += asset.value; | |
}); | |
}); | |
this.interval = d3.time.months; | |
this.difference = lastDate.diff(firstDate, 'months', true); | |
if (this.difference < 0.5) { | |
this.interval = d3.time.days; | |
} | |
else if (this.difference < 2) { | |
this.interval = d3.time.weeks; | |
} | |
this.xTicks = this.interval(firstDate.toDate(), lastDate.toDate()).length; | |
this.xClass = ''; | |
if (this.xTicks < 7) { | |
this.xClass = 'small'; | |
} | |
else if (this.xTicks > 16) { | |
this.xClass = 'large'; | |
} | |
Object.keys(assetsByClass).forEach(d => { | |
const marketingType = assetsByClass[d]; | |
const typeData = []; | |
investment.position.data.forEach(p => { | |
if (moment(p.date).utc().isSameOrAfter(firstDate)) { | |
typeData.push({ date: moment(p.date).utc().format(), value: marketingType[p.date] || 0 }); | |
} | |
}); | |
assets.push({ | |
name: d, | |
values: typeData | |
}); | |
}); | |
this.setState({ | |
data: assets | |
}, this.prepareSize); | |
} | |
@autobind | |
prepareSize(e) { | |
const props = this.props; | |
this.width = props.size[0] || this.container.getBoundingClientRect().width; | |
this.height = props.size[1] || this.container.getBoundingClientRect().height; | |
this.margin = { top: 15, right: 20, bottom: 30, left: 100 }; | |
if (window.innerWidth < 600) { | |
this.margin.left = 55; | |
} | |
this.innerWidth = this.width - this.margin.left - this.margin.right; | |
this.innerHeight = this.height - this.margin.top - this.margin.bottom; | |
this.x = d3.time.scale() | |
.range([0, this.innerWidth]); | |
this.y = d3.scale.linear() | |
.range([this.innerHeight, 0]); | |
this.stack = d3.layout.stack() | |
.values(d => d.values); | |
this.colors = d3.scale.ordinal() | |
.range(props.colors); | |
this.xAxis = d3.svg.axis() | |
.scale(this.x) | |
.orient('bottom') | |
.ticks(this.interval) | |
.tickSize(-(this.height - this.margin.bottom)) | |
.tickPadding(15) | |
.tickFormat(d => moment(d, 'YYYY-MM').utc().format(this.difference < 0.5 ? 'DD/MM' : 'MM/YY')); | |
this.yAxis = d3.svg.axis() | |
.scale(this.y) | |
.orient('left') | |
.tickSize(-this.innerWidth) | |
.tickPadding(window.innerWidth < 600 ? 5 : 10) | |
.tickFormat(d => { | |
return `R$ ${d}`; | |
}); | |
this.area = d3.svg.area() | |
.x(d => this.x(d.date)) | |
.y0(d => this.y(d.y0)) | |
.y1(d => this.y(d.y0 + d.y)); | |
this.bisectDate = d3.bisector(d => d.date).left; | |
if (e && e.type === 'resize') { | |
this.forceUpdate(); | |
d3.select('.evolution-chart__hover').classed('active', false); | |
d3.select('.evolution-chart__tooltip').classed('in', false); | |
} | |
if (!this.state.ready) { | |
this.setState({ | |
ready: true | |
}); | |
} | |
} | |
plotChart() { | |
d3.select(this.container) | |
.datum(this.filterData()) | |
.call(this.update()); | |
} | |
update() { | |
const chart = (selection) => { | |
selection.each(data => { | |
const self = this; | |
const assetsByClass = this.stack(data.map(d => ({ | |
name: d.name, | |
values: d.values.map(v => ({ | |
date: new Date(v.date), y: v.value * 1 | |
})) | |
}))); | |
this.colors | |
.range(this.props.colors) | |
.domain(data.map(d => d.name)); | |
this.x.domain(d3.extent(assetsByClass[0].values, d => d.date)); | |
this.y.domain([0, d3.sum(assetsByClass, d => d3.max(d.values.map(dd => (dd.y || 0))))]); | |
const svg = d3.select(this.container).selectAll('svg').data([assetsByClass]); | |
const svgEnter = svg.enter().append('svg'); | |
const gEnter = svgEnter.append('g'); | |
gEnter.append('g').attr('class', `axis x ${this.xClass}`); | |
gEnter.append('g').attr('class', 'axis y'); | |
gEnter.append('line').attr('class', 'y__line start'); | |
gEnter.append('line').attr('class', 'y__line end'); | |
gEnter.append('g').attr('class', 'assets'); | |
const hover = gEnter.append('g').attr('class', 'evolution-chart__hover'); | |
hover.append('line').attr('class', 'hover__line'); | |
gEnter.append('rect').attr('class', 'evolution-chart__overlay'); | |
// Update the outer dimensions. | |
svg.attr('width', this.width) | |
.attr('height', this.height); | |
// Update the inner dimensions. | |
const g = svg.select('g') | |
.attr('transform', `translate(${this.margin.left}, ${this.margin.top})`); | |
const areas = g.select('.assets').selectAll('.area').data(d => d); | |
areas.enter() | |
.append('path') | |
.attr('class', 'area'); | |
areas.exit().remove(); | |
const circles = g.select('.evolution-chart__hover').selectAll('.hover__circle').data(d => d); | |
circles.enter() | |
.append('circle') | |
.attr('class', 'hover__circle') | |
.attr('r', 4); | |
circles.exit().remove(); | |
g.selectAll('.area') | |
.attr('d', d => this.area(d.values)) | |
.style('fill', d => this.colors(d.name)); | |
g.select('.axis.x') | |
.attr('transform', `translate(0, ${this.innerHeight})`) | |
.call(this.xAxis); | |
g.select('.axis.y') | |
.call(this.yAxis); | |
g.selectAll('.y__line.start') | |
.attr({ | |
x1: 0, | |
y1: -this.margin.top, | |
x2: 0, | |
y2: this.innerHeight | |
}); | |
g.selectAll('.y__line.end') | |
.attr({ | |
x1: this.innerWidth, | |
y1: -this.margin.top, | |
x2: this.innerWidth, | |
y2: this.innerHeight | |
}); | |
g.selectAll('.hover__line') | |
.attr({ | |
x1: 0, | |
y1: -this.margin.top, | |
x2: 0, | |
y2: this.innerHeight | |
}); | |
g.selectAll('.evolution-chart__overlay') | |
.attr('width', this.innerWidth) | |
.attr('height', this.innerHeight) | |
.style('fill', 'none'); | |
}); | |
}; | |
chart.margin = arg => { | |
if (!arg) { | |
return this.margin; | |
} | |
this.margin = arg; | |
return chart; | |
}; | |
chart.width = arg => { | |
if (!arg) { | |
return this.width; | |
} | |
this.width = arg; | |
return chart; | |
}; | |
chart.height = arg => { | |
if (!arg) { | |
return this.height; | |
} | |
this.height = arg; | |
return chart; | |
}; | |
chart.x = arg => { | |
if (!arg) { | |
return this.xValue; | |
} | |
this.xValue = arg; | |
return chart; | |
}; | |
chart.y = arg => { | |
if (!arg) { | |
return this.yValue; | |
} | |
this.yValue = arg; | |
return chart; | |
}; | |
return chart; | |
} | |
render() { | |
const state = this.state; | |
const output = {}; | |
if (state.ready) { | |
output.legend = ( | |
<div className="evolution-chart__legend"> | |
{state.data.map((d, i) => | |
(<a | |
key={i} | |
href="#exclude" | |
className={classNames(d.name, { active: !state.exclude.includes(d.name) })} | |
data-class={d.name} | |
onClick={this.onClickLegend}> | |
<span className="rect" style={{ | |
backgroundColor: classes[d.name].color, | |
color: classes[d.name].color | |
}} /> | |
<span className="text"> | |
{classes[d.name].name} | |
</span> | |
</a>) | |
)} | |
</div> | |
); | |
} | |
else { | |
output.main = (<Loader chart={true} />); | |
} | |
return ( | |
<div key="EvolutionChart" className="evolution-chart__wrapper"> | |
<div className="evolution-chart" ref={c => (this.container = c)}> | |
{output.main} | |
</div> | |
{output.legend} | |
</div> | |
); | |
} | |
} |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment