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这里我试图配置连接节点,以便每个节点的连接线的长度由数据集配置。如何动态设置连接节点的距离长度?
这是线路在哪里设定的长度:
.linkDistance([dataset.edges[0].distance])
这设置所有连接的节点线长度相同的值,但如何配置,以便它读取当前节点的距离参数,而不是将所有行的长度,以dataset.edges[0].distance
?
我认为需要遍历每个距离数据集并应用于节点?
小提琴:https://jsfiddle.net/7pvhxfzg/30/
源:
var w = 500;
var h = 300;
var dataset = {
nodes:[
{name:"Adam"},
{name:"Bob"},
{name:"Carrie"},
{name:"Donovan"},
{name:"Edward"},
{name:"Felicity"},
{name:"George"},
{name:"Hannah"},
{name:"Iris"},
{name:"Jerry"}
],
edges:[
{source: 0, target: 1, distance: 200},
{source: 0, target: 1, distance: 200},
{source: 0, target: 3, distance: 200},
{source: 0, target: 4, distance: 200},
{source: 1, target: 5, distance: 200}
]
};
var force = d3.layout.force()
.nodes(dataset.nodes)
.links(dataset.edges)
.size([w, h])
.linkDistance([dataset.edges[0].distance])
.charge([-150])
.start();
var colors = d3.scale.category10();
var svg = d3.select("body")
.append("svg")
.attr("width", w)
.attr("height", h);
var edges = svg.selectAll("line")
.data(dataset.edges)
.enter()
.append("line")
.style("stroke", "#ccc")
.style("stroke-width", 5);
var nodes = svg.selectAll("circle")
.data(dataset.nodes)
.enter()
.append("circle")
.attr("r", 10)
.style("fill", function(d, i){
return colors(i);
})
.call(force.drag);
var label = svg.selectAll(".mytext")
.data(dataset.nodes)
.enter()
.append("text")
.text(function (d) { return d.name; })
.style("text-anchor", "middle")
.style("fill", "#555")
.style("font-family", "Arial")
.style("font-size", 12);
force.on("tick", function(){
edges.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; });
nodes.attr("cx", function(d){ return d.x; })
.attr("cy", function(d){ return d.y; });
label.attr("x", function(d){ return d.x; })
.attr("y", function (d) {return d.y - 10; });
});
更新了答案:
var w = 500;
var h = 300;
var dataset = {
nodes:[
{name:"Adam"},
{name:"Bob"},
{name:"Carrie"},
{name:"Donovan"},
{name:"Edward"},
{name:"Felicity"},
{name:"George"},
{name:"Hannah"},
{name:"Iris"},
{name:"Jerry"}
],
edges:[
{source: 0, target: 1, distance: 200},
{source: 0, target: 1, distance: 200},
{source: 0, target: 3, distance: 100},
{source: 0, target: 4, distance: 200},
{source: 1, target: 5, distance: 200}
]
};
var force = d3.layout.force()
.nodes(dataset.nodes)
.links(dataset.edges)
.size([w, h])
.linkDistance(function(link) { return link.distance })
.charge([-150])
.start();
var colors = d3.scale.category10();
var svg = d3.select("body")
.append("svg")
.attr("width", w)
.attr("height", h);
var edges = svg.selectAll("line")
.data(dataset.edges)
.enter()
.append("line")
.style("stroke", "#ccc")
.style("stroke-width", 5);
var nodes = svg.selectAll("circle")
.data(dataset.nodes)
.enter()
.append("circle")
.attr("r", 10)
.style("fill", function(d, i){
return colors(i);
})
.call(force.drag);
var label = svg.selectAll(".mytext")
.data(dataset.nodes)
.enter()
.append("text")
.text(function (d) { return d.name; })
.style("text-anchor", "middle")
.style("fill", "#555")
.style("font-family", "Arial")
.style("font-size", 12);
force.on("tick", function(){
edges.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; });
nodes.attr("cx", function(d){ return d.x; })
.attr("cy", function(d){ return d.y; });
label.attr("x", function(d){ return d.x; })
.attr("y", function (d) {return d.y - 10; });
});
小提琴:https://jsfiddle.net/7pvhxfzg/32/