javascript - 非常大的树 d3 v4 中的重叠节点

Question

我用样本耀斑数据构建了一个简单的树。但是，这棵树不适合我的 svg，并且所有节点都相互重叠，如演示中所示。有没有办法解决给定 SVG Canvas 宽度和高度中子节点重叠的问题？我尝试按照here中给出的分离。然而它不起作用。我不知道如何在 d3 v4 中解决这个问题。

var data={
 "name": "flare",
 "children": [
  {
   "name": "analytics",
   "children": [
    {
     "name": "cluster",
     "children": [
      {"name": "AgglomerativeCluster", "size": 3938},
      {"name": "CommunityStructure", "size": 3812},
      {"name": "HierarchicalCluster", "size": 6714},
      {"name": "MergeEdge", "size": 743}
     ]
    },
    {
     "name": "graph",
     "children": [
      {"name": "BetweennessCentrality", "size": 3534},
      {"name": "LinkDistance", "size": 5731},
      {"name": "MaxFlowMinCut", "size": 7840},
      {"name": "ShortestPaths", "size": 5914},
      {"name": "SpanningTree", "size": 3416}
     ]
    },
    {
     "name": "optimization",
     "children": [
      {"name": "AspectRatioBanker", "size": 7074}
     ]
    }
   ]
  },
  {
   "name": "animate",
   "children": [
    {"name": "Easing", "size": 17010},
    {"name": "FunctionSequence", "size": 5842},
    {
     "name": "interpolate",
     "children": [
      {"name": "ArrayInterpolator", "size": 1983},
      {"name": "ColorInterpolator", "size": 2047},
      {"name": "DateInterpolator", "size": 1375},
      {"name": "Interpolator", "size": 8746},
      {"name": "MatrixInterpolator", "size": 2202},
      {"name": "NumberInterpolator", "size": 1382},
      {"name": "ObjectInterpolator", "size": 1629},
      {"name": "PointInterpolator", "size": 1675},
      {"name": "RectangleInterpolator", "size": 2042}
     ]
    },
    {"name": "ISchedulable", "size": 1041},
    {"name": "Parallel", "size": 5176},
    {"name": "Pause", "size": 449},
    {"name": "Scheduler", "size": 5593},
    {"name": "Sequence", "size": 5534},
    {"name": "Transition", "size": 9201},
    {"name": "Transitioner", "size": 19975},
    {"name": "TransitionEvent", "size": 1116},
    {"name": "Tween", "size": 6006}
   ]
  },
  {
   "name": "data",
   "children": [
    {
     "name": "converters",
     "children": [
      {"name": "Converters", "size": 721},
      {"name": "DelimitedTextConverter", "size": 4294},
      {"name": "GraphMLConverter", "size": 9800},
      {"name": "IDataConverter", "size": 1314},
      {"name": "JSONConverter", "size": 2220}
     ]
    },
    {"name": "DataField", "size": 1759},
    {"name": "DataSchema", "size": 2165},
    {"name": "DataSet", "size": 586},
    {"name": "DataSource", "size": 3331},
    {"name": "DataTable", "size": 772},
    {"name": "DataUtil", "size": 3322}
   ]
  },
  {
   "name": "display",
   "children": [
    {"name": "DirtySprite", "size": 8833},
    {"name": "LineSprite", "size": 1732},
    {"name": "RectSprite", "size": 3623},
    {"name": "TextSprite", "size": 10066}
   ]
  },
  {
   "name": "flex",
   "children": [
    {"name": "FlareVis", "size": 4116}
   ]
  },
  {
   "name": "physics",
   "children": [
    {"name": "DragForce", "size": 1082},
    {"name": "GravityForce", "size": 1336},
    {"name": "IForce", "size": 319},
    {"name": "NBodyForce", "size": 10498},
    {"name": "Particle", "size": 2822},
    {"name": "Simulation", "size": 9983},
    {"name": "Spring", "size": 2213},
    {"name": "SpringForce", "size": 1681}
   ]
  },
  {
   "name": "query",
   "children": [
    {"name": "AggregateExpression", "size": 1616},
    {"name": "And", "size": 1027},
    {"name": "Arithmetic", "size": 3891},
    {"name": "Average", "size": 891},
    {"name": "BinaryExpression", "size": 2893},
    {"name": "Comparison", "size": 5103},
    {"name": "CompositeExpression", "size": 3677},
    {"name": "Count", "size": 781},
    {"name": "DateUtil", "size": 4141},
    {"name": "Distinct", "size": 933},
    {"name": "Expression", "size": 5130},
    {"name": "ExpressionIterator", "size": 3617},
    {"name": "Fn", "size": 3240},
    {"name": "If", "size": 2732},
    {"name": "IsA", "size": 2039},
    {"name": "Literal", "size": 1214},
    {"name": "Match", "size": 3748},
    {"name": "Maximum", "size": 843},
    {
     "name": "methods",
     "children": [
      {"name": "add", "size": 593},
      {"name": "and", "size": 330},
      {"name": "average", "size": 287},
      {"name": "count", "size": 277},
      {"name": "distinct", "size": 292},
      {"name": "div", "size": 595},
      {"name": "eq", "size": 594},
      {"name": "fn", "size": 460},
      {"name": "gt", "size": 603},
      {"name": "gte", "size": 625},
      {"name": "iff", "size": 748},
      {"name": "isa", "size": 461},
      {"name": "lt", "size": 597},
      {"name": "lte", "size": 619},
      {"name": "max", "size": 283},
      {"name": "min", "size": 283},
      {"name": "mod", "size": 591},
      {"name": "mul", "size": 603},
      {"name": "neq", "size": 599},
      {"name": "not", "size": 386},
      {"name": "or", "size": 323},
      {"name": "orderby", "size": 307},
      {"name": "range", "size": 772},
      {"name": "select", "size": 296},
      {"name": "stddev", "size": 363},
      {"name": "sub", "size": 600},
      {"name": "sum", "size": 280},
      {"name": "update", "size": 307},
      {"name": "variance", "size": 335},
      {"name": "where", "size": 299},
      {"name": "xor", "size": 354},
      {"name": "_", "size": 264}
     ]
    },
    {"name": "Minimum", "size": 843},
    {"name": "Not", "size": 1554},
    {"name": "Or", "size": 970},
    {"name": "Query", "size": 13896},
    {"name": "Range", "size": 1594},
    {"name": "StringUtil", "size": 4130},
    {"name": "Sum", "size": 791},
    {"name": "Variable", "size": 1124},
    {"name": "Variance", "size": 1876},
    {"name": "Xor", "size": 1101}
   ]
  },
  {
   "name": "scale",
   "children": [
    {"name": "IScaleMap", "size": 2105},
    {"name": "LinearScale", "size": 1316},
    {"name": "LogScale", "size": 3151},
    {"name": "OrdinalScale", "size": 3770},
    {"name": "QuantileScale", "size": 2435},
    {"name": "QuantitativeScale", "size": 4839},
    {"name": "RootScale", "size": 1756},
    {"name": "Scale", "size": 4268},
    {"name": "ScaleType", "size": 1821},
    {"name": "TimeScale", "size": 5833}
   ]
  },
  {
   "name": "util",
   "children": [
    {"name": "Arrays", "size": 8258},
    {"name": "Colors", "size": 10001},
    {"name": "Dates", "size": 8217},
    {"name": "Displays", "size": 12555},
    {"name": "Filter", "size": 2324},
    {"name": "Geometry", "size": 10993},
    {
     "name": "heap",
     "children": [
      {"name": "FibonacciHeap", "size": 9354},
      {"name": "HeapNode", "size": 1233}
     ]
    },
    {"name": "IEvaluable", "size": 335},
    {"name": "IPredicate", "size": 383},
    {"name": "IValueProxy", "size": 874},
    {
     "name": "math",
     "children": [
      {"name": "DenseMatrix", "size": 3165},
      {"name": "IMatrix", "size": 2815},
      {"name": "SparseMatrix", "size": 3366}
     ]
    },
    {"name": "Maths", "size": 17705},
    {"name": "Orientation", "size": 1486},
    {
     "name": "palette",
     "children": [
      {"name": "ColorPalette", "size": 6367},
      {"name": "Palette", "size": 1229},
      {"name": "ShapePalette", "size": 2059},
      {"name": "SizePalette", "size": 2291}
     ]
    },
    {"name": "Property", "size": 5559},
    {"name": "Shapes", "size": 19118},
    {"name": "Sort", "size": 6887},
    {"name": "Stats", "size": 6557},
    {"name": "Strings", "size": 22026}
   ]
  },
  {
   "name": "vis",
   "children": [
    {
     "name": "axis",
     "children": [
      {"name": "Axes", "size": 1302},
      {"name": "Axis", "size": 24593},
      {"name": "AxisGridLine", "size": 652},
      {"name": "AxisLabel", "size": 636},
      {"name": "CartesianAxes", "size": 6703}
     ]
    },
    {
     "name": "controls",
     "children": [
      {"name": "AnchorControl", "size": 2138},
      {"name": "ClickControl", "size": 3824},
      {"name": "Control", "size": 1353},
      {"name": "ControlList", "size": 4665},
      {"name": "DragControl", "size": 2649},
      {"name": "ExpandControl", "size": 2832},
      {"name": "HoverControl", "size": 4896},
      {"name": "IControl", "size": 763},
      {"name": "PanZoomControl", "size": 5222},
      {"name": "SelectionControl", "size": 7862},
      {"name": "TooltipControl", "size": 8435}
     ]
    },
    {
     "name": "data",
     "children": [
      {"name": "Data", "size": 20544},
      {"name": "DataList", "size": 19788},
      {"name": "DataSprite", "size": 10349},
      {"name": "EdgeSprite", "size": 3301},
      {"name": "NodeSprite", "size": 19382},
      {
       "name": "render",
       "children": [
        {"name": "ArrowType", "size": 698},
        {"name": "EdgeRenderer", "size": 5569},
        {"name": "IRenderer", "size": 353},
        {"name": "ShapeRenderer", "size": 2247}
       ]
      },
      {"name": "ScaleBinding", "size": 11275},
      {"name": "Tree", "size": 7147},
      {"name": "TreeBuilder", "size": 9930}
     ]
    },
    {
     "name": "events",
     "children": [
      {"name": "DataEvent", "size": 2313},
      {"name": "SelectionEvent", "size": 1880},
      {"name": "TooltipEvent", "size": 1701},
      {"name": "VisualizationEvent", "size": 1117}
     ]
    },
    {
     "name": "legend",
     "children": [
      {"name": "Legend", "size": 20859},
      {"name": "LegendItem", "size": 4614},
      {"name": "LegendRange", "size": 10530}
     ]
    },
    {
     "name": "operator",
     "children": [
      {
       "name": "distortion",
       "children": [
        {"name": "BifocalDistortion", "size": 4461},
        {"name": "Distortion", "size": 6314},
        {"name": "FisheyeDistortion", "size": 3444}
       ]
      },
      {
       "name": "encoder",
       "children": [
        {"name": "ColorEncoder", "size": 3179},
        {"name": "Encoder", "size": 4060},
        {"name": "PropertyEncoder", "size": 4138},
        {"name": "ShapeEncoder", "size": 1690},
        {"name": "SizeEncoder", "size": 1830}
       ]
      },
      {
       "name": "filter",
       "children": [
        {"name": "FisheyeTreeFilter", "size": 5219},
        {"name": "GraphDistanceFilter", "size": 3165},
        {"name": "VisibilityFilter", "size": 3509}
       ]
      },
      {"name": "IOperator", "size": 1286},
      {
       "name": "label",
       "children": [
        {"name": "Labeler", "size": 9956},
        {"name": "RadialLabeler", "size": 3899},
        {"name": "StackedAreaLabeler", "size": 3202}
       ]
      },
      {
       "name": "layout",
       "children": [
        {"name": "AxisLayout", "size": 6725},
        {"name": "BundledEdgeRouter", "size": 3727},
        {"name": "CircleLayout", "size": 9317},
        {"name": "CirclePackingLayout", "size": 12003},
        {"name": "DendrogramLayout", "size": 4853},
        {"name": "ForceDirectedLayout", "size": 8411},
        {"name": "IcicleTreeLayout", "size": 4864},
        {"name": "IndentedTreeLayout", "size": 3174},
        {"name": "Layout", "size": 7881},
        {"name": "NodeLinkTreeLayout", "size": 12870},
        {"name": "PieLayout", "size": 2728},
        {"name": "RadialTreeLayout", "size": 12348},
        {"name": "RandomLayout", "size": 870},
        {"name": "StackedAreaLayout", "size": 9121},
        {"name": "TreeMapLayout", "size": 9191}
       ]
      },
      {"name": "Operator", "size": 2490},
      {"name": "OperatorList", "size": 5248},
      {"name": "OperatorSequence", "size": 4190},
      {"name": "OperatorSwitch", "size": 2581},
      {"name": "SortOperator", "size": 2023}
     ]
    },
    {"name": "Visualization", "size": 16540}
   ]
  }
 ]
}





var margin = {top: 20, right: 90, bottom: 30, left: 90},
width = 1060 - margin.left - margin.right,
height = 500 - margin.top - margin.bottom;
var svg = d3.select("#tree_container").
append("svg").
attr("width", width + margin.right + margin.left).
attr("height", height + margin.top + margin.bottom).call(d3.zoom().on("zoom", function () {
              svg.attr("transform", d3.event.transform)
      }))
      .append("g").
attr("transform", "translate(" + margin.left + "," + margin.top + ")");
var i = 0, duration = 500, root;
var panSpeed = 200;
var panBoundary = 20;  

var treemap = d3.tree().
size([height, width]).separation(function separation(a, b) {
      return a.parent == b.parent ? 2 : 2;
    });
root = d3.hierarchy(data, function(d) {
  return d.children;
});
root.x0 = height / 2;
root.y0 = 0;
update(root,svg,root);
//create zoom handler 

    
//specify what to do when zoom event listener is triggered 


//add zoom behaviour to the svg element backing our graph.  
//same thing as svg.call(zoom_handler); 
function update(source,svg,root) {

  // Assigns the x and y position for the nodes
  var treeData = treemap(root);
  //console.log(treeData)
  // Compute the new tree layout.
  var nodes = treeData.descendants(),
    links = treeData.descendants().slice(1);
    nodes.forEach(function(d){
      if (d.parent!=null){
    d.depth = d.parent.depth+1 
    d.height=d.parent.height-1;
  }
  });
  // Normalize for fixed-depth.
  nodes.forEach(function(d){
    d.y = d.depth * 180
  });

  // ### LINKS

  // Update the links...
  var link = svg.selectAll('line.link').
    data(links, function(d) {
      return d.id;
    });

  // Enter any new links at the parent's previous position.
  var linkEnter = link.enter().insert('path', "g")
      .attr("class", "link")
      .attr('d', function(d){
        var o = {x: source.y, y: source.x}
        return diagonal(o, o)
      });

  // UPDATE
  var linkUpdate = linkEnter.merge(link);
    
  
  linkUpdate.transition()
      .duration(duration)
      .attr('d', function(d){ return diagonal(d, d.parent) });

  // Remove any exiting links
  var linkExit = link.exit().transition()
      .duration(duration)
      .attr('d', function(d) {
        var o = {x: source.y, y: source.x}
        return diagonal(o, o)
      })
      .remove();

  // Store the old positions for transition.


  // ### CIRCLES

  // Update the nodes...
    node = svg.selectAll('g.node')
    .data(nodes, function(d) {
      return d.id || (d.id = ++i);
    });

  // Enter any new modes at the parent's previous position.
  var nodeEnter = node.enter().
    append('g').
    attr('class', 'node').
    attr("transform", function(d) {
      return "translate(" + source.y0 + "," + source.x0 + ")";
    })
  // Add Circle for the nodes
  nodeEnter.append('circle').
    attr('class', 'node').
    attr('r', 10).
    style("fill", function(d) {
      return "#0e4677";
    });
    nodeEnter.append("text")
      .attr("dx", ".60em")
      .attr("x", function(d) { return d.children ? -30 : 30; })
      .style("text-anchor", "middle")
      .text(function(d) { return d.data.name; });
  // Update
  var nodeUpdate = nodeEnter.merge(node);

  // Transition to the proper position for the node
  nodeUpdate.transition().
    duration(duration).
    attr("transform", function(d) {
      return "translate(" + d.y + "," + d.x + ")";
    });

  // Update the node attributes and style
  nodeUpdate.select('circle.node').
    attr('r', 10).
    style("fill", function(d) {
      return "#0e4677";
    }).
    attr('cursor', 'pointer');

  // Remove any exiting nodes
  var nodeExit = node.exit().
    transition().
    duration(duration).
    attr("transform", function(d) {
      return "translate(" + source.y + "," + source.x + ")";
    }).
    remove();

  // On exit reduce the node circles size to 0
  nodeExit.select('circle').attr('r', 0);
  
  // Store the old positions for transition.
  nodes.forEach(function(d){
    d.x0 = d.x;
    d.y0 = d.y;
  }); 
}

function diagonal(s, d) {

    path = `M ${s.y} ${s.x}
            C ${(s.y + d.y)/2} ${s.x},
              ${(s.y + d.y) / 2} ${d.x},
              ${d.y} ${d.x}`

    return path
  }

.node circle {
  fill: #fff;
  stroke: steelblue;
  stroke-width: 3px;
}
.fadedCircle{
  display: none;
}

.node text {
  font: 12px sans-serif;
}

.link {
  fill: none;
  stroke: #ccc;
  stroke-width: 2px;
}

.container {
    width: 100%;
    height: 600px;
    margin: auto;
    padding: 10px;
}
.tree {
    width: 75%;
    height: 600px;
    float: left;
}
.recomwindow {
    width: 25%;
    height: 600px;
    float: right;
}
.dialogbox {
    
    background-color: lightgrey;
    width: 300px;
    border: 2px solid #0d0d0d;
    font-family: Arial;
    margin-top: 100px;
    margin-right: 50px;
    background:#fff;

}
#dialogbox1{
  display: none;
}
#dialogbox2{
  display: none;
}
#dialogbox3{
  display: none;
}
.dialogtitle{
  text-align: center;
  width: 300px;
  height: 25px;
  background-color: #CCCCCC;
  padding-top: 4px;
}
.dialogbody{
  text-align: center;
  padding-top: 25px;
        padding-right: 25px;
        padding-bottom: 25px;
        padding-left: 25px;
  background: #fff;
}
.xbutton{

    float:right;
    display:inline-block;
    padding:2px 5px;
    background:#ccc;
}
.xbutton:hover {
    float:right;
    display:inline-block;
    padding:2px 5px;
    background:#ccc;
    color:#fff;
}

<!DOCTYPE html>
<meta charset="UTF-8">
<!DOCTYPE html>
<meta charset="utf-8">
<link rel="stylesheet" href="styles.css">
<script src = "https://code.jquery.com/jquery-1.10.2.js"></script>
<script src = "https://code.jquery.com/ui/1.10.4/jquery-ui.js"></script>   
<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/4.2.2/d3.min.js"></script>
<script src="https://d3js.org/d3-path.v1.min.js"></script>
<script src="https://d3js.org/d3-shape.v1.min.js"></script>
<script src="https://d3js.org/d3-dispatch.v1.min.js"></script>

<body>
	<div class="container">
		<div class="recomwindow" id="recom_container">
			<div class="dialogbox" id="dialogbox1" > 
				<div class="dialogtitle" id="dTitle"> How to interact nodes?
					<input type="button" class ="xbutton" id="xbutton" value="X" onclick="windowClose();"></div> 
				<div class ="dialogbody" id="dBody">
					<button type="button" class="choice" id="duplicatenodes" ">Copy node in each branch</button>
					<button type="button" class="choice" id="mergenodes" ">Merge with this node in dropping point</button>
				</div>
				
			</div>
			<div class="dialogbox" id="dialogbox2" > 
				<div class="dialogtitle" id="dTitle"> How to interact nodes?
					<input type="button" class ="xbutton" id="xbutton2" value="X" onclick="windowClose();"></div> 
				<div class ="dialogbody" id="dBody">
					<button type="button" class="choice" id="mergenodes2" ">Merge with this node in dropping point</button>
				</div>
				
			</div>
			<div class="dialogbox" id="dialogbox3" > 
				<div class="dialogtitle" id="dTitle"> How to interact node and link?
					<input type="button" class ="xbutton" id="xbutton3" value="X" onclick="windowClose();"></div> 
				<div class ="dialogbody" id="dBody">
				</div>
				
			</div>
		</div>
		<div class="tree" id= "tree_container">	
			<script src="main.js"></script>
			
		</div>
		
		
	</div>
	

</body>

请注意，svg Canvas 的大小应与预期大小相同，因为我保留了 25% 的宽度用于其他目的。

Answer 1

您必须在更大的区域上渲染树10*height

var treemap = d3.tree()
  .size([10*height, width])
  .separation(function separation(a, b) { return a.parent == b.parent ? 2 : 2; });

然后将缩放设置为初始比例0.1。

更改您的代码，因为您使用与 How can I avoid d3.zoom translate on first zoom or pan? 相同的陷阱

您的 HTML 无效。使用语法突出显示的编辑器。