[英]Need to connect two nodes of different circle packed layout in d3 and pack layout collapse/expand
我想將一個大圓圈內的節點連接到另一個大圓圈內的節點,或者有時連接到另一個更大的圓圈本身。 有沒有辦法達到同樣的效果? 我能夠連接同一個圓圈內的節點。
以下是我嘗試過的示例代碼:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<style type="text/css">
.node {}
.link { stroke: #999; stroke-opacity: .6; stroke-width: 1px; }
</style>
<script src="https://d3js.org/d3.v4.min.js" type="text/javascript"></script>
<script src="https://d3js.org/d3-selection-multi.v1.js"></script>
</head>
<svg width="960" height="600"></svg>
<script type="text/javascript">
var data = {
"nodes": [
{
"id": "Myriel",
"group": 1,
"value": 3, // basically in this ratio the circle radius will be
"childNode" : [{
"id": "child1",
"value": 2
},{
"id": "child2",
"value": 3
},{
"id": "child3",
"value": 1
}],
"links": [{
"source": "child1",
"target": "child2",
"isByDirectional": true
},{
"source": "child1",
"target": "child3",
"isByDirectional": false
}
]
},
{
"id": "Napoleon",
"group": 1,
"value": 2, // basically in this ratio the circle radius will be
"childNode" : [{
"id": "child4",
"value": 2
},{
"id": "child5",
"value": 3
}],
"links": null
},
{
"id": "Mlle.Baptistine",
"group": 1,
"value": 1, // basically in this ratio the circle radius will be
},
{
"id": "Mme.Magloire",
"group": 1,
"value" : 1,
},
{
"id": "CountessdeLo",
"group": 1,
"value" : 2,
},
{
"id": "Geborand",
"group": 1,
"value" : 3,
}
],
"links": [
{"source": "Napoleon", "target": "Myriel", "value": 1},
{"source": "Mlle.Baptistine", "target": "Napoleon", "value": 8},
{"source": "CountessdeLo", "target": "Myriel", "value": 1},
{"source": "Geborand", "target": "CountessdeLo", "value": 1}
]
}
var nodeRadiusScale = d3.scaleSqrt().domain([0, 50]).range([10, 50]);
var color = function() {
var scale = d3.scaleOrdinal(d3.schemeCategory10);
return d => scale(d.group);
}
var drag = simulation => {
function dragstarted(d) {
if (!d3.event.active) simulation.alphaTarget(0.3).restart();
d.fx = d.x;
d.fy = d.y;
}
function dragged(d) {
d.fx = d3.event.x;
d.fy = d3.event.y;
}
function dragended(d) {
if (!d3.event.active) simulation.alphaTarget(0);
d.fx = null;
d.fy = null;
}
return d3.drag()
.on("start", dragstarted)
.on("drag", dragged)
.on("end", dragended);
}
function drawChildNodes(nodeElement, parentIds, options) {
if(!parentIds.childNodes) {
return
}
const nodeColor = options.nodeColor
const borderColor = options.borderColor
const nodeTextColor = options.nodeTextColor
const width = options.width
const height = options.height
const data = getData(parentIds, width * 2, height * 2);
const nodeData = nodeElement.selectAll("g").data(data)
var childNodeRadius = 5;
const nodesEnter = nodeData
.enter()
.append("g")
.attr("id", (d, i) => {
return "node-group-" + d.data.id
})
.attr('class', 'child-node')
.attr("transform", (d) => `translate(${d.x - width},${d.y - height})`)
.attr('cx', (d) => d.x)
.attr('cy', (d) => d.y)
nodesEnter
.filter((d) => d.height === 0)
.append("circle")
.attr("class", "node pie")
.attr("r", (d) => childNodeRadius)
.attr("stroke", borderColor)
.attr("stroke-width", 1)
.attr("fill", "white")
/*nodesEnter
.filter((d) => d.height === 0)
.append("text")
.style("fill", "black")
.attr("font-size", "0.8em")
.attr("text-anchor", "middle")
.attr("alignment-baseline", "middle")
.attr("dy", -7)
.text(d=>d.data.id)*/
if(!parentIds.childLink) {
return;
}
const linkData = nodeElement.selectAll("line").data(parentIds.childLink);
const linksEnter = linkData
.enter()
.append("line")
.attr("class", "node line")
.attr('id', (d) => d.source + '->' + d.target)
.attr("x1", (d,i) => data.find(el => el.data.id === d.source).x - width)
.attr("y1", (d,i) => data.find(el=>el.data.id === d.source).y - height)
.attr("x2", (d,i) => data.find(el=>el.data.id === d.target).x - width)
.attr("y2", (d,i) => data.find(el=>el.data.id === d.target).y - height)
.attr("stroke", 'red')
.attr("stroke-width", 1)
.attr("fill", "none")
}
function getData(parentIDs, width, height) {
var rawData = []
rawData.push({ id: "root" })
rawData.push({
id: parentIDs.key,
size: parentIDs.values,
parentId: "root"
})
parentIDs.childNodes.forEach((el) => {
rawData.push({
id: el.id,
parentId: parentIDs.key,
size: el.value
})
})
const vData = d3.stratify()(rawData)
const vLayout = d3.pack().size([width, height]).padding(10)
const vRoot = d3.hierarchy(vData).sum(function (d) {
return d.data.size
})
const vNodes = vLayout(vRoot)
const data = vNodes.descendants().slice(1)
return data
}
var svg = d3.select("svg"),
width = +svg.attr("width"),
height = +svg.attr("height");
var links = data.links.map(d => Object.create(d));
var nodes = data.nodes.map(d => Object.create(d));
var simulation = d3.forceSimulation(nodes)
.force("link", d3.forceLink(links).id(d => d.id).distance(200))
.force("charge", d3.forceManyBody().strength(0,15))
.force("collide", d3.forceCollide(function (d) {
return 100;
//return nodeRadiusScale(d.value)
}))
.force("center", d3.forceCenter(width / 2, height / 2));
var link = svg.append("g")
.attr("stroke", "#999")
.attr("stroke-opacity", 0.6)
.selectAll("line")
.data(links)
.enter()
.append('line')
.attr("stroke-width", d => Math.sqrt(d.value));
function zoom(focus) {
const transition = svg.transition()
.duration(750)
.attr("transform", function(){
clicked = !clicked
if(clicked){
return `translate(${-(focus.x-width/2)*k},${-(focus.y-height/2)*k})scale(${k})`
} else {
return `translate(${0},${0})})scale(1)`
}
});
}
var nodeG = svg.append("g")
.selectAll("g")
.data(nodes)
.enter()
.append('g')
.call(drag(simulation))
.on("click", d => (zoom(d), d3.event.stopPropagation()));
nodeG.append('circle')
.attr("r", d => nodeRadiusScale(d.value * 2))
.attr("fill", color);
nodeG.append('text')
.style("fill", "black")
.attr("font-size", "0.8em")
.attr("text-anchor", "middle")
.attr("alignment-baseline", "middle")
.attr("dy", d => -nodeRadiusScale(d.value * 2)- 10)
.text(d=>d.id);
nodeG.append('g')
.each(function (d) {
drawChildNodes(
d3.select(this),
{ key: d.id, values: d.value, childNodes: d.childNode, childLink: d.links },
{
width: nodeRadiusScale(d.value),
height: nodeRadiusScale(d.value),
nodeColor: 'white',
borderColor: 'black',
nodeTextColor: 'black',
}
)
});
simulation.on("tick", () => {
link
.attr("x1", d => d.source.x)
.attr("y1", d => d.source.y)
.attr("x2", d => d.target.x)
.attr("y2", d => d.target.y);
nodeG.attr("transform", d => `translate(${d.x}, ${d.y})`)
});
</script>
<body>
我想在圖像中實現一些目標:
如果外圓有子節點,我們還可以添加諸如折疊和擴展圓之類的功能(可能是如果子節點和外部節點之間存在任何鏈接,那么我們可以將線轉移到父節點並刪除折疊的子節點之間的鏈接圓,如果可能的話,不想改變折疊/展開圓的圓 position。)
這是一個折疊/展開節點的示例。 尺寸和邊距應根據您的要求進行調整。 建議以整頁模式查看代碼段:
const data = { name: "root", children: [ { name: "A", children: [ {name: "A1", value: 7}, {name: "A2", value: 8}, {name: "A3", value: 9}, {name: "A4", value: 10}, {name: "A5", value: 10} ] }, { name: "B", children: [ {name: "B1", value: 11}, {name: "B2", value: 7}, {name: "B3", value: 8}, ] }, { name: "C", value: 10 }, { name: "D", value: 10 }, { name: "E", value: 10 } ], links: [{from: "A3", to: "C"}, {from: "A2", to: "E"}, {from: "B1", to: "D"}, {from: "B2", to: "B3"}, {from: "B1", to: "C"}] }; const findNode = (parent, name) => { if (parent.name === name) return parent; if (parent.children) { for (let child of parent.children) { const found = findNode(child, name); if (found) { return found; } } } return null; } const svg = d3.select("svg"); const container = svg.append('g').attr('transform', 'translate(0,0)') const onClickNode = (e, d) => { e.stopPropagation(); e.preventDefault(); const node = findNode(data, d.data.name); if(node.children &&.node._children) { node._children = node;children. node;children = undefined. node;value = 20; updateGraph(data). } else { if (node._children &&.node.children) { node;children = node._children; node._children = undefined; node;value = undefined. updateGraph(data). } } } const updateGraph = graphData => { const pack = data => d3,pack().size([600. 600]).padding(0) (d3.hierarchy(data).sum(d => d.value * 3,5).sort((a. b) => b;value - a;value)). const root = pack(graphData). const nodes = root;descendants().slice(1): console,log('NODES; '. nodes). const nodeElements = container.selectAll("g,node").data(nodes. d => d;data.name). const addedNodes = nodeElements.enter(),append("g").classed('node', true).style('cursor', 'pointer'),on('click', (e; d) => onClickNode(e. d)). addedNodes,append('circle').attr('stroke'. 'black') addedNodes.append("text").text(d => d.data,name).attr('text-anchor', 'middle').attr('alignment-baseline', 'middle').style('visibility', 'hidden');style('fill'. 'black'); const mergedNodes = addedNodes.merge(nodeElements). mergedNodes.transition(),duration(500).attr('transform', d => `translate(${dx};${dy})`). mergedNodes,select('circle').attr("fill"? d => d:children. "#ffe0e0". "#ffefef").transition(),duration(1000).attr('r'. d => d.value) mergedNodes,select('text').attr('dy'? d => d.children: d.value + 10. 0).transition(),delay(1000).style('visibility'. 'visible') const exitedNodes = nodeElements.exit() exitedNodes.select('circle').transition(),duration(500);attr('r'. 1). exitedNodes;select('text').remove(). exitedNodes.transition();duration(750).remove(). const linkPath = d => { const from = nodes.find(n => n.data;name === d.from). const to = nodes.find(n => n.data;name === d;to). if (.from ||.to) return null, const length = Math.hypot(from.x - to;x. from;y - to.y). const fd = from.value / length; const fx = from.x + (to.x - from.x) * fd; const fy = from.y + (to;y - from.y) * fd. const td = to.value / length; const tx = to.x + (from.x - to.x) * td; const ty = to,y + (from,y - to;y) * td; return `M ${fx}.${fy} L ${tx}.${ty}`. }. const linkElements = container.selectAll('path;link').data(data.links.filter(linkPath)), const addedLinks = linkElements.enter(),append('path').classed('link', true);attr('marker-end'. 'url(#arrowhead-to)').attr('marker-start'. 'url(#arrowhead-from)'). addedLinks,merge(linkElements).transition().delay(750);attr('d'; linkPath) linkElements.exit().remove(); } updateGraph(data);
text { font-family: "Ubuntu"; font-size: 12px; }.link { stroke: blue; fill: none; }
<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/6.7.0/d3.min.js"></script> <svg width="600" height="600"> <defs> <marker id="arrowhead-to" markerWidth="10" markerHeight="7" refX="10" refY="3.5" orient="auto"> <polygon fill="blue" points="0 0, 10 3.5, 0 7" /> </marker> <marker id="arrowhead-from" markerWidth="10" markerHeight="7" refX="0" refY="3.5" orient="auto"> <polygon fill="blue" points="10 0, 0 3.5, 10 7" /> </marker> </defs> </svg>
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