d3中具有可折叠属性的有向图

Question

我正在尝试使用d3绘制网络图，该图可以首先显示特定的节点，然后单击该节点以展开其他节点，我使用此code我在这里的代码上做了一些更改，它只显示了4个节点中的2个节点，我不知道为什么不显示所有节点并丢失可压缩的属性，请给我帮助。

		var  root;
      var COLLAPSE_LEVEL = 1;
var dataset = {
    "nodes": [{
        "id": 1708498,
        "name": "Chieh-Jen Wang",
        "w": 88
    }, {
        "id": 1710977,
        "name": "jan",
        "w": 88
    }, {
        "id": 32944442,
        "name": "mike",
        "w": 88
    },{
        "id": 2761079,
        "name": "ana",
        "w": 88
    }],
    "edges": [{
       "from": 1708498,
        "to": 1710977,
        "w": 1
    }, {
        "from": 1708498,
        "to": 32944442,
        "w": 3
    }]
}

  var width = 960,
  height = 1000;

var svg = d3.select("body").append("svg")
  .attr("width", width)
  .attr("height", height);

var force = d3.layout.force()
  .size([width, height])
  .on("tick", tick)
  //gravity(0.2)
  .linkDistance(height / 13)
  .charge(function(node) {
    if (node.type !== 'ORG') return -2000;
    return -30;
  });

// build the arrow.
svg.append("svg:defs").selectAll("marker")
  .data(["end"]) // Different link/path types can be defined here
  .enter().append("svg:marker") // This section adds in the arrows
  .attr("id", function(d) {
    return d;
  })
  .attr("viewBox", "0 -5 10 10")
  .attr("refX", 12)
  .attr("refY", 0)
  .attr("markerWidth", 9)
  .attr("markerHeight", 5)
  .attr("orient", "auto")
  .attr("class", "arrow")
  .append("svg:path")
  .attr("d", "M0,-5L10,0L0,5");

  var json = dataset;

    var edges = [];
    json.edges.forEach(function(e) {
    var sourceNode = json.nodes.filter(function(n) {
        return n.id === e.from;
      })[0],
      targetNode = json.nodes.filter(function(n) {
        return n.id === e.to;
      })[0];

    edges.push({
      source: sourceNode,
      target: targetNode,
      value: e.Value
    });
  });
  var username="Chieh-Jen Wang";
  var userid
  var othernode=[]
  for(var i=0; i<json.nodes.length; i++) {
	  if(json.nodes[i].name==="Chieh-Jen Wang"){
		 userid=json.nodes[i].id;
	    json.nodes[i].collapsing = 0;
	    json.nodes[i].collapsed = false;
		 
	  } 
	  else{
		
		json.nodes[i].collapsing = 1;
	    json.nodes[i].collapsed = true;
		othernode.push(json.nodes[i])
	   }
  }
  
  var link = svg.selectAll(".link");
  var node = svg.selectAll(".node");

  force.on("tick", function() {
    // make sure the nodes do not overlap the arrows
    link.attr("d", function(d) {
      // Total difference in x and y from source to target
      diffX = d.target.x - d.source.x;
      diffY = d.target.y - d.source.y;

      // Length of path from center of source node to center of target node
      pathLength = Math.sqrt((diffX * diffX) + (diffY * diffY));

      // x and y distances from center to outside edge of target node
      offsetX = (diffX * d.target.radius) / pathLength;
      offsetY = (diffY * d.target.radius) / pathLength;

      return "M" + d.source.x + "," + d.source.y + "L" + (d.target.x - offsetX) + "," + (d.target.y - offsetY);
    });

    node.attr("transform", function(d) {
      return "translate(" + d.x + "," + d.y + ")";
    });
  });

update();

function update(){
  var nodes = json.nodes.filter(function(d) {
    return d.collapsing == 0;
  });

  var links = edges.filter(function(d) {
    return d.source.collapsing == 0 && d.target.collapsing == 0;
  });

	

  force
    .nodes(nodes)
    .links(links)
    .start();

  link = link.data(links)
  
  link.exit().remove();
  
  link.enter().append("path")
    .attr("class", "link")
    .attr("marker-end", "url(#end)");

  node = node.data(nodes);
  node.exit().remove();
 
  node.enter().append("g")
    .attr("class", function(d) {
      return "node " + d.type
    })
	.attr("id",function(d){
	  
	  return d.id
  });
 
  node.append("circle")
    .attr("class", "circle")
	  .attr("id",function(d){
	  	  return d.id
  })
    .attr("r", function(d) {
      d.radius = 10;
      return d.radius
    })
	 .on("click",function(d){
	  if(d.id===userid){
		  for(var i=0; i<json.nodes.length; i++) {
			  json.nodes[i].collapsing = 0;
	      json.nodes[i].collapsed = false;
			
		  }

	  }
	});
// return a radius for path to use 
   //make lable for circles
 // node.append("text")
    //.attr("x", 0)
   // .attr("dy", ".35em")
   // .attr("text-anchor", "middle")
  //  .attr("class", "text")
  //  .text(function(d) {
   //   return d.name
   // });
    
  // On node hover, examine the links to see if their
  // source or target properties match the hovered node.
  node.on('mouseover', function(d) {
    link.attr('class', function(l) {
      if (d === l.source || d === l.target)
        return "link active";
      else
        return "link inactive";
    });
	 return tooltip.style("visibility", "visible").text(d.name); 
	  
  });
  
  // Set the stroke width back to normal when mouse leaves the node.
  node.on('mouseout', function() {
    link.attr('class', "link");
	  
  // we hide our tooltip on "mouseout"
  
	return tooltip.style("visibility", "hidden") 
	
  })
	

  .on('click', click)
	  
  // we move tooltip during of "mousemove"
  .on("mousemove", function() {
    return tooltip.style("top", (event.pageY - 30) + "px")
      .style("left", event.pageX + "px");
  })
 
  function click(d) {
    if (!d3.event.defaultPrevented) {
      var inc = d.collapsed ? -1 : 1;
      recurse(d);

      function recurse(sourceNode){
        //check if link is from this node, and if so, collapse
        edges.forEach(function(l) {
          if (l.source.id === sourceNode.id){
            l.target.collapsing += inc;
						recurse(l.target);
          }
        });
      }
      d.collapsed = !d.collapsed;
    }      
	
    update();
	 
  }
}
	
		
		function tick() {
        link.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; });
       	  

        t.attr("x", function(d) { return d.x; })
        .attr("y", function(d) { return d.y; }); 

      }
		
var toggleColor = (function(){
   var currentColor = "black";
    
    return function(){
        currentColor = currentColor == "black" ? "red" : "black";
        d3.select(this).style("fill", currentColor);
    }
})();
  var tooltip = d3.select("body")
  .append("div")
  .attr('class', 'tooltip');
 


  var circles = svg.selectAll("circle");
		
		circles.forEach(function(c){

		})

  

.node {
  cursor: pointer;
  font-family: "HelveticaNeue-Light", "Helvetica Neue Light", "Helvetica Neue", Helvetica, Arial, "Lucida Grande", sans-serif;
  font-weight: 300;
   fill: black;
}
.node:active{
		fill:lightgray;
		}
.node .text {
  fill: white;
}

.ORG .circle {
  fill: #1d3649;
}

.EMR .circle {
  fill: #B2D0F5;
  stroke: #5596e6;
  stroke-dasharray: 3px, 3px;
  opacity: .5;
}

.EMR .circle:hover {
  fill: #5596e6;
}

.link {
  fill: none;
  stroke: #eee;
  stroke-width: 1.5px;
  font: 10px sans-serif;
}

.link.active {
  stroke:darkblue;
  stroke-width: 4;
}

.arrow {
  fill: #666;
}

.arrow.active {
  stroke-width: 0 !important;
}


		
	.tooltip {
    position: absolute;
    z-index: 10;
    visibility: hidden;
    background-color: lightblue;
    text-align: center;
    padding: 4px;
    border-radius: 4px;
    font-weight: bold;
    color: black;
}
.doubled { fill: red !important; }

<!DOCTYPE html>
<html>
  <head>
    <meta http-equiv="Content-Type" content="text/html;charset=utf-8">
    <title>Force-Directed Graph</title>
    <script src="http://d3js.org/d3.v3.min.js" charset="utf-8"></script>
   </head>
  <body>
    <div id="chart"></div>
  </body>
</html>

Answer 1

这里是一个具有您的数据和可折叠属性的演示