import {useEffect, useRef} from 'react'
import * as d3 from 'd3'
const Tree = ({familyData,isProfile}) => {
const wrapperRef = useRef(null)
const history = useHistory()
const radialPoint = (x, y) => {
return [(y = +y) * Math.cos(x -= Math.PI / 2), y * Math.sin(x)];
}
const genColors = [
'#000','#7d1e01', '#2c3e50',
'#80016e','#673ab7',
'#ff9800','#795548','#142796',
'#61b301','#19a0b1','#a0342c',
'#CEE397','#F5A25D','#625261',
'#87556F','#E5EDB7','#231E23',
'#6F0000','#FFF0F5','#FFEBD9',
'#BEEBE9','#B0A160','#E4F9FF',
]
const createTree = () => {
wrapperRef.current.innerHTML = '';
const margin = {top: 140, right: 0, bottom: 20, left: 0}
const innerHeight = 2000 - margin.top - margin.bottom;
const zoomHandler = event =>{
return `scale(${event.transform.k})`
}
const svg = d3.select(wrapperRef.current)
.append('svg')
.attr('width', 4000)
.attr('height', 2250)
.call(d3.zoom().scaleExtent([0.1, 5]).on('zoom', (event) => {
svg.attr('transform', zoomHandler(event))
}))
const width = +svg.attr("width")
const height = +svg.attr("height")
const g = svg.append("g")
.attr("transform", `translate(${(width/2+ 40)},${(height-150)})`);
const dataStructure = d3.stratify().id(d => d._id).parentId(d => d.parentId)(familyData)
const treeLayout = d3.tree().size([(1 * Math.PI), innerHeight])
const root = treeLayout(dataStructure)
g.selectAll(".link")
.data(root.links())
.enter().append("path")
.attr('fill', 'none')
.attr('stroke', '#555')
.attr('stroke-opacity', '0.4')
.attr('stroke-width', (d) => {
if(d.target.depth <= 9){
return 10 - d.target.depth
} else {
return 1
}
})
.attr("d", d3.linkRadial()
.angle(d => d.x-Math.PI/2)
.radius(d => d.y))
.attr('id', d => 'link_' + d.target.data._id)
.attr('stroke-dasharray', function(){
const length = this.getTotalLength()
return `${length} ${length}`
})
.attr('stroke-dashoffset', function(){
const length = this.getTotalLength()
return length
})
.transition()
.duration(1500)
.delay(d => d.source.depth * 500)
.attr('stroke-dashoffset', 0)
const node = g.selectAll(".node")
.data(root.descendants())
.enter().append("g")
.attr("class", d => d.children ? " node--internal" : " node--leaf")
.attr('transform', d => "translate(" + radialPoint(d.x-Math.PI/2, d.y) + ")");
node.append("circle")
.attr("r", d => 15 - (d.depth))
.style("stroke","white")
.style("fill", d => {
if(d.children){
return genColors[d.depth]
} else {
return '#04a21a'
}
})
.attr('opacity', 0)
.transition()
.duration(1500)
.delay(d => d.depth * 500)
.attr('opacity', 1)
node.append("image")
.attr("xlink:href", d => !d.children ? "image/leaf.png":"")
.attr('x', '-15px')
.attr('y', d => "-150px")
.attr("transform", d => `rotate(${(d.x > Math.PI/2 ? d.x-Math.PI/2 : d.x-Math.PI/2 ) * 180 / Math.PI})`)
// .attr('transform', d => `rotate(-50, -20, -100)`)
.attr('width', '2.5rem')
.attr('opacity', 0)
.transition()
.duration(1500)
.delay(d => d.depth * 500)
.attr('opacity', 1)
node.append("text")
.attr("dy","0.2em")
.attr('y', d => {
if(d.depth === 0 || d.depth === 1){
return 10
}else {
return 2
}
})
.attr("x", (d) => {
if(d.depth === 0 || d.depth === 1){
return -20
}else {
return d.x > Math.PI/2 && !d.children ? 80 : -80
}
} )
// eslint-disable-next-line
.attr("text-anchor", d => d.x > Math.PI/2 === !d.children ? "start" : "end")
.attr("transform", d => d.depth > 1 && "rotate(" + (d.x > Math.PI/2 ? d.x-Math.PI/2 - Math.PI / 2 : d.x-Math.PI/2 + Math.PI / 2) * 180 / Math.PI + ")")
.style("font-size", d => 3 - (d.depth * 2) /10 + 'em')
.text(d => d.data.firstName)
.attr('id', d => 'name_' + d.data._id)
.style('cursor', 'pointer')
.style(' z-index', '9999999')
.attr('fill', (d) =>{
if(d.children){
return genColors[d.depth]
} else {
return '#04a21a'
}
})
.on('mouseover', (e, d) => {
d3.selectAll('path').style('stroke', '#2c3e50').style('opacity', 0.2)
d3.selectAll('text').style('fill', '#2c3e50').style('opacity', 0.2)
d3.selectAll('circle').style('fill', '#2c3e50').style('opacity', 0.2)
d3.selectAll('image').style('opacity', '0.1')
while(d){
if(!d.data.parentId ) {
d3.select(`#name_${d.data._id}`).style('fill','#000').style('opacity','1')
}
if(d.data.parentId !== null){
d3.select(`#link_${d.data._id}`).style('stroke','#b70202').style('opacity','1')
d3.select(`#name_${d.data._id}`).attr('fill','#000').style('opacity','1')
.style('font-size', '3rem')
.transition()
.duration(500)
.style('font-size', '5rem');
}
d = d.parent
}
})
.on('mouseout', () => {
d3.selectAll('path').style('stroke', '#555').style('opacity','0.4')
d3.selectAll('text').style('fill', (d) => {
if(d.children){
return genColors[d.depth]
} else {
return '#04a21a'
}
}).style('font-size', d => 3 - (d.depth * 2) /10 + 'em').style('opacity','1')
d3.selectAll('image').style('opacity', '1')
d3.selectAll('circle').style('fill', (d) => {
if(d.children){
return genColors[d.depth]
} else {
return '#04a21a'
}
}).style('opacity','1')
})
.on('click', (e, d) => {
if(!isProfile){
history.push(`/info/${d.data._id}`)
}
})
.attr('opacity', 0)
.transition()
.duration(1500)
.delay(d => d.depth * 600)
.attr('opacity', 1)
}
useEffect(() => {
createTree()
})
return (
<div className="tree__wrapper" ref={wrapperRef}></div>
)
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/5.7.0/d3.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/react/16.6.3/umd/react.production.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/react-dom/16.6.3/umd/react-dom.production.min.js"></script>
