D3树布局可视化-继承具有多个父级的子级 [英] D3 Tree layout visualization - Inherit child with multiple parents
本文介绍了D3树布局可视化-继承具有多个父级的子级的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我是D3视觉化的新鲜蜜蜂.当前正在为数据沿袭创建D3树布局可视化.在数据沿袭流中，一个子节点可以从多个父节点派生.这是例子.在下面的示例中，"DevLead"可以与2位经理一起工作.
I'm fresh bee for D3-visulization. Currently working with creating D3 tree layout visualization for data lineage. In a data lineage flow, a child node can be derived from more than one parent. Here is the example. In below example, a 'DevLead' may work with 2 managers.
var data = [
{ "name": "Director", "parent": "null", "depth": 0 },
{ "name": "Manager1", "parent": "Director", "depth": 1 },
{ "name": "Manager2", "parent": "Director", "depth": 1 },
{ "name": "DevLead", "parent": "Manager1", "depth": 2 },
{ "name": "DevLead", "parent": "Manager2", "depth": 2 }
];
获取输出，请参考下面的图片.
Getting output refer below image attached.
我希望看到'DevLead'子代只能显示一个，并且应该衍生自'Manager1'和'Manager2'.任何人都可以帮忙.
I'd like to see 'DevLead' children should show only one, and there should be a derivation from 'Manager1' and 'Manager2'. Could any one help with this.
推荐答案
D3树布局不完全支持多个父级
D3 Tree Layout does not exactly supports multiple parents
你能做什么?
-
改用网络图-缺点是节点的位置 硬
Use network graph instead - downside is that node positioning is hard
我有类似的要求，并尝试构建类似的网络图
树形布局，但是当节点很多时，就会变得混乱...
您可以对其进行检查
codepen
I had similar requirements and tried building network graph similar
with tree layout, but when there are many nodes, it gets messy ...
you can check it on
codepen
在树形布局上使用hack-从其他节点绘制其他链接
检查此示例
use hack on tree layout - draw additional link from other node
check this example
使用隐藏节点的另一种黑客- jsfiddle
another hack using hidden nodes - jsfiddle
此外，我认为，这些链接将进一步帮助您:
Also, I think, these links will help you further :
如果您选择第一个选项，则可以通过在数据中删除和添加节点来使用此代码段
If you go with first option, here, you can play with this snippet by removing and adding nodes in data
<!DOCTYPE html>
<html >
<head>
<meta charset="UTF-8">
<link rel="shortcut icon" type="image/x-icon" href="https://production-assets.codepen.io/assets/favicon/favicon-8ea04875e70c4b0bb41da869e81236e54394d63638a1ef12fa558a4a835f1164.ico" />
<link rel="mask-icon" type="" href="https://production-assets.codepen.io/assets/favicon/logo-pin-f2d2b6d2c61838f7e76325261b7195c27224080bc099486ddd6dccb469b8e8e6.svg" color="#111" />
<title>CodePen - A Pen by dato</title>
</head>
<body translate="no" >
<script src='https://d3js.org/d3.v3.min.js'></script>
<script>
var width = window.innerWidth - 20,
height = window.innerHeight - 20,
radius = 30;
var min_zoom = 0.1;
var max_zoom = 7;
var zoom = d3.behavior.zoom().scaleExtent([min_zoom, max_zoom])
var fill = d3.scale.category20();
var force = d3.layout.force()
.charge(-8000)
.linkDistance(200)
.size([width, height]);
force.drag().on("dragstart", dragstarted)
var svg = d3.select("body").append("svg")
.attr("width", width)
.attr("height", height);
var chart = svg.append('g');
var json = {
"nodes": [{
"name": "node0"
}, {
"name": "node1"
}, {
"name": "node2"
}, {
"name": "node3"
}, {
"name": "node4"
}, {
"name": "node5"
}, {
"name": "node6"
}, {
"name": "node7"
}, {
"name": "node8"
}, {
"name": "node9"
}, {
"name": "node10"
}, {
"name": "node11"
}, {
"name": "node12"
}, {
"name": "node13"
}, {
"name": "node14"
}, {
"name": "node15"
}, {
"name": "node16"
}, {
"name": "node17"
}, {
"name": "node18"
}, {
"name": "node19"
}, {
"name": "node20"
}, {
"name": "node21"
}, {
"name": "node22"
}, {
"name": "node23"
}, {
"name": "node24"
}, {
"name": "node25"
}, {
"name": "node26"
}, {
"name": "node27"
}, {
"name": "node28"
}, {
"name": "node29"
}, {
"name": "node30"
}, {
"name": "node31"
}, {
"name": "node32"
}, {
"name": "node33"
}, {
"name": "node34"
}, {
"name": "node35"
}, {
"name": "node36"
}, {
"name": "node37"
}, {
"name": "node38"
}, {
"name": "node39"
}, {
"name": "node40"
}, {
"name": "node41"
}, {
"name": "node42"
}, {
"name": "node43"
}, {
"name": "node44"
}, {
"name": "node45"
}, {
"name": "node46"
}, {
"name": "node47"
}, {
"name": "node48"
}, {
"name": "node49"
}, {
"name": "node50"
}, {
"name": "node51"
}, {
"name": "node52"
}, {
"name": "node53"
}, {
"name": "node54"
}, {
"name": "node55"
}, {
"name": "node56"
}, {
"name": "node57"
}, {
"name": "node58"
}, {
"name": "node59"
}, {
"name": "node60"
}, {
"name": "node61"
}, {
"name": "node62"
}, {
"name": "node63"
}, {
"name": "node64"
}, {
"name": "node65"
}, {
"name": "node66"
}, {
"name": "node67"
}, {
"name": "node68"
}, {
"name": "node69"
}, {
"name": "node70"
}, {
"name": "node71"
}, {
"name": "node72"
}, {
"name": "node73"
}, {
"name": "node74"
}, {
"name": "node75"
}, {
"name": "node76"
}, {
"name": "node77"
}, {
"name": "node78"
}, {
"name": "node79"
}, {
"name": "node80"
}, {
"name": "node81"
}, {
"name": "node82"
}, {
"name": "node83"
}, {
"name": "node84"
}, {
"name": "node85"
}, {
"name": "node86"
}, {
"name": "node87"
}, {
"name": "node88"
}, {
"name": "node89"
}, {
"name": "node90"
}, {
"name": "node91"
}, {
"name": "node92"
}, {
"name": "node93"
}, {
"name": "node94"
}, {
"name": "node95"
}, {
"name": "node96"
}, {
"name": "node97"
}, {
"name": "node98"
}, {
"name": "node99"
}],
"links": [ {
"source": 0,
"target": 1
}, {
"source": 0,
"target": 2
}, {
"source": 1,
"target": 3
}, {
"source": 1,
"target": 4
}, {
"source": 2,
"target": 5
}, {
"source": 2,
"target": 6
}, {
"source": 3,
"target": 7
}, {
"source": 3,
"target": 8
}, {
"source": 4,
"target": 9
}, {
"source": 4,
"target": 10
}, {
"source": 5,
"target": 11
}, {
"source": 5,
"target": 12
}, {
"source": 6,
"target": 13
}, {
"source": 6,
"target": 14
}, {
"source": 7,
"target": 15
}, {
"source": 7,
"target": 16
}, {
"source": 8,
"target": 17
}, {
"source": 8,
"target": 18
}, {
"source": 9,
"target": 19
}, {
"source": 9,
"target": 20
}, {
"source": 10,
"target": 21
}, {
"source": 10,
"target": 22
}, {
"source": 11,
"target": 23
}, {
"source": 11,
"target": 24
}, {
"source": 12,
"target": 25
}, {
"source": 12,
"target": 26
}, {
"source": 13,
"target": 27
}, {
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"target": 30
}, {
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"target": 31
}, {
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}, {
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}, {
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"target": 34
}, {
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"target": 35
}, {
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"target": 36
}, {
"source": 18,
"target": 37
}, {
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"target": 38
}, {
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"target": 39
}, {
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"target": 40
}, {
"source": 20,
"target": 41
}, {
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"target": 42
}, {
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"target": 43
}, {
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"target": 44
}, {
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"target": 45
}, {
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"target": 46
}, {
"source": 23,
"target": 47
}, {
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"target": 48
}, {
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"target": 49
}, {
"source": 24,
"target": 50
}, {
"source": 25,
"target": 51
}, {
"source": 25,
"target": 52
}, {
"source": 26,
"target": 53
}, {
"source": 26,
"target": 54
}, {
"source": 27,
"target": 55
}, {
"source": 27,
"target": 56
}, {
"source": 28,
"target": 57
}, {
"source": 28,
"target": 58
}, {
"source": 29,
"target": 59
}, {
"source": 29,
"target": 60
}, {
"source": 30,
"target": 61
}, {
"source": 30,
"target": 62
}, {
"source": 31,
"target": 63
}, {
"source": 31,
"target": 64
}, {
"source": 32,
"target": 65
}, {
"source": 32,
"target": 66
}, {
"source": 33,
"target": 67
}, {
"source": 33,
"target": 68
}, {
"source": 34,
"target": 69
}, {
"source": 34,
"target": 70
}, {
"source": 35,
"target": 71
}, {
"source": 35,
"target": 72
}, {
"source": 36,
"target": 73
}, {
"source": 36,
"target": 74
}, {
"source": 37,
"target": 75
}, {
"source": 37,
"target": 76
}, {
"source": 38,
"target": 77
}, {
"source": 38,
"target": 78
}, {
"source": 39,
"target": 79
}, {
"source": 39,
"target": 80
}, {
"source": 40,
"target": 81
}, {
"source": 40,
"target": 82
}, {
"source": 41,
"target": 83
}, {
"source": 41,
"target": 84
}, {
"source": 42,
"target": 85
}, {
"source": 42,
"target": 86
}, {
"source": 43,
"target": 87
}, {
"source": 43,
"target": 88
}, {
"source": 44,
"target": 89
}, {
"source": 44,
"target": 90
}, {
"source": 45,
"target": 91
}, {
"source": 45,
"target": 92
}, {
"source": 46,
"target": 93
}, {
"source": 46,
"target": 94
}, {
"source": 47,
"target": 95
}, {
"source": 47,
"target": 96
}, {
"source": 48,
"target": 97
}, {
"source": 48,
"target": 98
}, {
"source": 49,
"target": 99
},{
"source": 0,
"target": 99
}]
}
var link = chart.selectAll("line")
.data(json.links)
.enter()
.append("line")
.attr("stroke", function(d) {
return 'blue'
})
var node = chart.selectAll("circle")
.data(json.nodes)
.enter().append("circle")
.attr("r", radius - .75)
.style("fill", function(d) {
return fill(d.group);
})
.style("stroke", function(d) {
return d3.rgb(fill(d.group)).darker();
})
.on('mouseover', d => console.log(d))
.call(force.drag);
function dragstarted() {
d3.event.sourceEvent.stopPropagation();
}
zoom.on("zoom", function(d) {
var evt = d3.event;
debugger;
/*
var dcx = (window.innerWidth/2-d.x*zoom.scale());
var dcy = (window.innerHeight/2-d.y*zoom.scale());
*/
var dcx = evt.translate[0]
var dcy = evt.translate[1]
zoom.translate([dcx, dcy]);
chart.attr("transform", "translate(" + d3.event.translate + ")scale(" + d3.event.scale + ")");;
});
force
.nodes(json.nodes)
.links(json.links)
.on("tick", tick)
.start();
svg.call(zoom)
function tick(e) {
console.log(e)
var k = 6 * e.alpha;
// Push sources up and targets down to form a weak tree.
link
.each(function(d,i) {
d.source.y -= k * 60, d.target.y += k * 100;
/*
if(i%2==1){
d.source.x -= 0.4/k
}else{
d.source.x += 0.4/k
}
*/
})
.attr("x1", function(d) {
return d.source.x;
})
.attr("y1", function(d) {
return d.source.y;
})
.attr("x2", function(d) {
return d.target.x;
})
.attr("y2", function(d) {
return d.target.y;
});
node
.attr("cx", function(d) {
return d.x;
})
.attr("cy", function(d) {
return d.y;
});
}
</script>
</body>
</html>
这篇关于D3树布局可视化-继承具有多个父级的子级的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
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