In [1]:

    

import beaker.runtime
beaker = beaker.runtime.Beaker()


    

    




instantiating runtime






    




/Users/spot/anaconda/envs/mypy/lib/python3.5/site-packages/IPython/utils/traitlets.py:5: UserWarning: IPython.utils.traitlets has moved to a top-level traitlets package.
  warn("IPython.utils.traitlets has moved to a top-level traitlets package.")

In [10]:

    

from random import randrange
import math

nnodes = 100

nodes = []
links = []

for i in range(0, nnodes):
    nodes.append({"name": str(i), "group": int(i*7/nnodes)})

for i in range(0, int(nnodes*1.15)):
    source = i % nnodes
    target = int(math.log(1 + randrange(nnodes), 1.3))
    value = 10.0 / (1 + abs(source - target))
    links.append({"source": source, "target": target, "value": value * value})

beaker.graph = {"nodes":nodes, "links":links}


    

In [8]:

    

%%javascript
require.config({
  paths: {
      d3: '//cdnjs.cloudflare.com/ajax/libs/d3/3.4.8/d3.min'
  }});


    

In [16]:

    

%%html
<style>
.node {
  stroke: #fff;
  stroke-width: 1.5px;
}

.link {
  stroke: #999;
  stroke-opacity: .6;
}
</style>
<div id="fdg"></div>


    

In [17]:

    

%%javascript
var graph = beaker.graph;
var d3 = require(['d3'], function (d3) {
    
var width = 600,
    height = 500;

var color = d3.scale.category20();

var force = d3.layout.force()
    .charge(-200)
    .linkDistance(30)
    .size([width, height]);

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


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

var link = svg.selectAll(".link")
      .data(graph.links)
      .enter().append("line")
      .attr("class", "link")
      .style("stroke-width", function(d) { return Math.sqrt(d.value); });

var node = svg.selectAll(".node")
      .data(graph.nodes)
      .enter().append("circle")
      .attr("class", "node")
      .attr("r", 10)
      .style("fill", function(d) { return color(d.group); })
      .call(force.drag);

node.append("title")
      .text(function(d) { return d.name; });

force.on("tick", function() {
    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; });
});
});