Grid Multi Foci Force Layout

<!DOCTYPE html>
<meta charset="utf-8">
<style>

circle {
  stroke: #fff;
}

</style>
<body>
<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.17/d3.min.js"></script>
<script type="text/javascript" src="https://code.jquery.com/jquery-1.8.2.min.js"></script>
<script>

var r = 10;
var w = $(window).width();
var h = $(window).height();
var width = w-100,
    height = h-100,
    padding = 6, // separation between nodes
    maxRadius = 20;

var n = 200, // total number of nodes
    m = 8; // number of distinct clusters

var color = d3.scale.category10()
    .domain(d3.range(m));

var x = d3.scale.ordinal()
    .domain(d3.range(m))
    .rangePoints([0, width], 1);

var dandata =

[

{"project":"Thomas Lee-Warren","status":"In Progress","cx":820,"cy":50,"radius":14},
{"project":"Thomas Lee-Warren","status":"Initial Engagement","cx":280,"cy":50,"radius":8},
{"project":"Thomas Lee-Warren","status":"In Progress","cx":820,"cy":50,"radius":18},
{"project":"Peter Bassett","status":"Initial Engagement","cx":280,"cy":170,"radius":5},
{"project":"Peter Bassett","status":"Initial Engagement","cx":280,"cy":170,"radius":10},
{"project":"Nigel Hodges","status":"Suspect","cx":100,"cy":290,"radius":19},
{"project":"Peter Bassett","status":"Suspect","cx":100,"cy":170,"radius":15},
{"project":"Andy McMurtrie","status":"Initial Engagement","cx":280,"cy":410,"radius":20},
{"project":"Thomas Lee-Warren","status":"In Progress","cx":820,"cy":50,"radius":14},
{"project":"Unknown","status":"Rejected","cx":1180,"cy":650,"radius":20},
{"project":"Nigel Hodges","status":"Initial Engagement","cx":280,"cy":290,"radius":12},
{"project":"Thomas Lee-Warren","status":"In Progress","cx":820,"cy":50,"radius":20},
{"project":"Nigel Hodges","status":"Initial Engagement","cx":280,"cy":290,"radius":17},
{"project":"Nigel Hodges","status":"Initial Engagement","cx":280,"cy":290,"radius":19},
{"project":"Peter Bassett","status":"Initial Engagement","cx":280,"cy":170,"radius":10},
{"project":"Nigel Hodges","status":"Initial Engagement","cx":280,"cy":290,"radius":10},
{"project":"Nigel Hodges","status":"Initial Engagement","cx":280,"cy":290,"radius":5},
{"project":"Nigel Hodges","status":"Initial Engagement","cx":280,"cy":290,"radius":11},
{"project":"Peter Simmonds","status":"Completed","cx":1000,"cy":530,"radius":15},
{"project":"Andy McMurtrie","status":"Initial Engagement","cx":280,"cy":410,"radius":14},
{"project":"Peter Bassett","status":"Initial Engagement","cx":280,"cy":170,"radius":12},
{"project":"Thomas Lee-Warren","status":"Initial Engagement","cx":280,"cy":50,"radius":16},
{"project":"Peter Bassett","status":"In Progress","cx":820,"cy":170,"radius":16},
{"project":"Unknown","status":"Rejected","cx":1180,"cy":650,"radius":19},
{"project":"Nigel Hodges","status":"Initial Engagement","cx":280,"cy":290,"radius":20},
{"project":"Peter Bassett","status":"Suspect","cx":100,"cy":170,"radius":9},
{"project":"Nigel Hodges","status":"Initial Engagement","cx":280,"cy":290,"radius":10},
{"project":"Nigel Hodges","status":"Initial Engagement","cx":280,"cy":290,"radius":17},
{"project":"Nigel Hodges","status":"Initial Engagement","cx":280,"cy":290,"radius":18},
{"project":"Andy McMurtrie","status":"Initial Engagement","cx":280,"cy":410,"radius":8},
{"project":"Peter Bassett","status":"Rejected","cx":1180,"cy":170,"radius":6},
{"project":"Peter Bassett","status":"In Progress","cx":820,"cy":170,"radius":17},
{"project":"Peter Bassett","status":"In Progress","cx":820,"cy":170,"radius":10},
{"project":"Peter Bassett","status":"In Progress","cx":820,"cy":170,"radius":5},
{"project":"Andy McMurtrie","status":"Initial Engagement","cx":280,"cy":410,"radius":20},
{"project":"Andy McMurtrie","status":"Initial Engagement","cx":280,"cy":410,"radius":20},
{"project":"Andy McMurtrie","status":"Qualified ","cx":460,"cy":410,"radius":9},
{"project":"Andy McMurtrie","status":"In Progress","cx":820,"cy":410,"radius":14},
{"project":"Andy McMurtrie","status":"In Progress","cx":820,"cy":410,"radius":14},
{"project":"Andy McMurtrie","status":"Suspect","cx":100,"cy":410,"radius":12},
{"project":"Andy McMurtrie","status":"Funding Sought","cx":640,"cy":410,"radius":12},
{"project":"Thomas Lee-Warren","status":"Qualified ","cx":460,"cy":50,"radius":14},
{"project":"Andy McMurtrie","status":"In Progress","cx":820,"cy":410,"radius":17},
{"project":"Andy McMurtrie","status":"Initial Engagement","cx":280,"cy":410,"radius":12},
{"project":"Andy McMurtrie","status":"Funding Sought","cx":640,"cy":410,"radius":10},
{"project":"Nigel Hodges","status":"In Progress","cx":820,"cy":290,"radius":10},
{"project":"Nigel Hodges","status":"Initial Engagement","cx":280,"cy":290,"radius":20},
{"project":"Andy McMurtrie","status":"Initial Engagement","cx":280,"cy":410,"radius":12}

]

var xScale = d3.scale.ordinal().domain(["Suspect",
"Initial Engagement",
"Qualified ",
"Funding Sought",
"In Progress",
"Completed",
"Rejected"
])
.rangeBands([50,1400]);

var yScale = d3.scale.ordinal().domain([
  "Thomas Lee-Warren",
"Peter Bassett",
"Nigel Hodges",
"Andy McMurtrie",
"Peter Simmonds",
"Unknown"
])
.rangeBands([50,680]);

dandata.forEach(function(d) {
d.cx = xScale(d.status);
d.cy = yScale(d.project);

});

var force = d3.layout.force()
    .nodes(dandata)
    .size([width, height])
    .gravity(0)
    .charge(0)
    .on("tick", tick)
    .start();

var svg = d3.select("body").append("svg")
    .attr("width", width+80)
    .attr("height", height+80);

var circle = svg.selectAll("circle")
    .data(dandata)
  .enter().append("circle")
    .attr("r", function(d) { return d.radius; })
    .style("fill", function(d) { return color(d.project); })
    .style("stroke","black")
    .call(force.drag);

function tick(e) {
  circle
      .each(gravity(.2 * e.alpha))
      .each(collide(.5))
      .attr("cx", function(d) { return d.x; })
      .attr("cy", function(d) { return d.y; });
}

// Move nodes toward cluster focus.
function gravity(alpha) {
  return function(d) {
    d.y += (d.cy - d.y) * alpha;
    d.x += (d.cx - d.x) * alpha;
  };
}

// Resolve collisions between nodes.
function collide(alpha) {
  var quadtree = d3.geom.quadtree(dandata);
  return function(d) {
    var r = d.radius + maxRadius + padding,
        nx1 = d.x - r,
        nx2 = d.x + r,
        ny1 = d.y - r,
        ny2 = d.y + r;
    quadtree.visit(function(quad, x1, y1, x2, y2) {
      if (quad.point && (quad.point !== d)) {
        var x = d.x - quad.point.x,
            y = d.y - quad.point.y,
            l = Math.sqrt(x * x + y * y),
            r = d.radius + quad.point.radius + (d.color !== quad.point.color) * padding;
        if (l < r) {
          l = (l - r) / l * alpha;
          d.x -= x *= l;
          d.y -= y *= l;
          quad.point.x += x;
          quad.point.y += y;
        }
      }
      return x1 > nx2 || x2 < nx1 || y1 > ny2 || y2 < ny1;
    });
  };
}

circle.append("title").text(function(d) {return d.color ;});

</script>

Modified http://code.jquery.com/jquery-1.8.2.min.js to a secure url

https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.17/d3.min.js

https://code.jquery.com/jquery-1.8.2.min.js