好吧，我可以找到浏览解决方案的方法，并将其发布在此处，以供需要此主题的任何人使用。这个想法是创建图的对象，并处理节点和链接数组。JS代码如下：
var graph;
function myGraph(el) {
// Add and remove elements on the graph object
this.addNode = function (id) {
nodes.push({"id":id});
update();
};
this.removeNode = function (id) {
var i = 0;
var n = findNode(id);
while (i < links.length) {
if ((links[i]['source'] == n)||(links[i]['target'] == n))
{
links.splice(i,1);
}
else i++;
}
nodes.splice(findNodeIndex(id),1);
update();
};
this.removeLink = function (source,target){
for(var i=0;i<links.length;i++)
{
if(links[i].source.id == source && links[i].target.id == target)
{
links.splice(i,1);
break;
}
}
update();
};
this.removeallLinks = function(){
links.splice(0,links.length);
update();
};
this.removeAllNodes = function(){
nodes.splice(0,links.length);
update();
};
this.addLink = function (source, target, value) {
links.push({"source":findNode(source),"target":findNode(target),"value":value});
update();
};
var findNode = function(id) {
for (var i in nodes) {
if (nodes[i]["id"] === id) return nodes[i];};
};
var findNodeIndex = function(id) {
for (var i=0;i<nodes.length;i++) {
if (nodes[i].id==id){
return i;
}
};
};
// set up the D3 visualisation in the specified element
var w = 500,
h = 500;
var vis = d3.select("#svgdiv")
.append("svg:svg")
.attr("width", w)
.attr("height", h)
.attr("id","svg")
.attr("pointer-events", "all")
.attr("view@R_358_2419@","0 0 "+w+" "+h)
.attr("perserveAspectRatio","xMinYMid")
.append('svg:g');
var force = d3.layout.force();
var nodes = force.nodes(),
links = force.links();
var update = function () {
var link = vis.selectAll("line")
.data(links, function(d) {
return d.source.id + "-" + d.target.id;
});
link.enter().append("line")
.attr("id",function(d){return d.source.id + "-" + d.target.id;})
.attr("class","link");
link.append("title")
.text(function(d){
return d.value;
});
link.exit().remove();
var node = vis.selectAll("g.node")
.data(nodes, function(d) {
return d.id;});
var nodeEnter = node.enter().append("g")
.attr("class", "node")
.call(force.drag);
nodeEnter.append("svg:circle")
.attr("r", 16)
.attr("id",function(d) { return "Node;"+d.id;})
.attr("class","nodestrokeClass");
nodeEnter.append("svg:text")
.attr("class","textClass")
.text( function(d){return d.id;}) ;
node.exit().remove();
force.on("tick", function() {
node.attr("transform", function(d) { return "translate(" + d.x + "," + d.y + ")"; });
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; });
});
// Restart the force layout.
force
.gravity(.05)
.distance(50)
.linkDistance( 50 )
.size([w, h])
.start();
};
// Make it all go
update();
}
function drawGraph()
{
graph = new myGraph("#svgdiv");
graph.addNode('A');
graph.addNode('B');
graph.addNode('C');
graph.addLink('A','B','10');
graph.addLink('A','C','8');
graph.addLink('B','C','15');
}
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