Bi-Level Partition with Labels

Built with blockbuilder.org

forked from vpletzke's block: Bi-Level Partition 2

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

circle,
path {
  cursor: pointer;
}

circle {
  fill: none;
  pointer-events: all;
}

#tooltip { background-color: white;
			  padding: 3px 5px;
			  border: 1px solid black;
			  text-align: center;}

html {
	font-family: sans-serif;
	
}
</style>
<body>
<script src="https://d3js.org/d3.v3.min.js"></script>
<script>

var margin = {top: 350, right: 480, bottom: 350, left: 480},
    radius = Math.min(margin.top, margin.right, margin.bottom, margin.left) - 10;

function filter_min_arc_size_text(d, i) {return (d.dx*d.depth*radius/3)>14};

var hue = d3.scale.category10();

var luminance = d3.scale.sqrt()
    .domain([0, 1e6])
    .clamp(true)
    .range([90, 20]);

var svg = d3.select("body").append("svg")
    .attr("width", margin.left + margin.right)
    .attr("height", margin.top + margin.bottom)
    .append("g")
    .attr("transform", "translate(" + margin.left + "," + margin.top + ")");

var partition = d3.layout.partition()
    .sort(function(a, b) { return d3.ascending(a.name, b.name); })
    .size([2 * Math.PI, radius]);

//Tooltip description
var tooltip = d3.select("body")
    .append("div")
    .attr("id", "tooltip")
    .style("position", "absolute")
    .style("z-index", "10")
    .style("opacity", 0);

function format_number(x) {
  return x.toString().replace(/\B(?=(\d{3})+(?!\d))/g, ",");
}

function format_description(d) {
  var description = d.description;
      return  /* '<b>' + d.name  + '</b></br>'+*/ d.description + '<br> (' + format_number(d.value) + ')';
}

function computeTextRotation(d) {
	var angle=(d.x +d.dx/2)*180/Math.PI - 90;	
	return angle;
}
  
function mouseOverArc(d) {
			 d3.select(this).attr("stroke","black")
			 
          tooltip.html(format_description(d));
          return tooltip.transition()
            .duration(50)
            .style("opacity", 0.9);
        }

function mouseOutArc(){
	d3.select(this).attr("stroke","")
	return tooltip.style("opacity", 0);
}

function mouseMoveArc (d) {
          return tooltip
            .style("top", (d3.event.pageY-10)+"px")
            .style("left", (d3.event.pageX+10)+"px");
}

var root_ = null;
d3.json("flare.json", function(error, root) {
  if (error) return console.warn(error);
  // Compute the initial layout on the entire tree to sum sizes.
  // Also compute the full name and fill color for each node,
  // and stash the children so they can be restored as we descend.
	
  partition
      .value(function(d) { return d.size; })
      .nodes(root)
      .forEach(function(d) {
        d._children = d.children;
        d.sum = d.value;
        d.key = key(d);
        d.fill = fill(d);
      });

// Now redefine the value function to use the previously-computed sum.
  partition
      .children(function(d, depth) { return depth < 2 ? d._children : null; })
      .value(function(d) { return d.sum; });

var center = svg.append("circle")
      .attr("r", radius / 3)
      .on("click", zoomOut);

center.append("title")
      .text("zoom out");
      
  var partitioned_data=partition.nodes(root).slice(1)

function zoomIn(p) {
    if (p.depth > 1) p = p.parent;
    if (!p.children) return;
    zoom(p, p);
  }

function zoomOut(p) {
    if (!p.parent) return;
    zoom(p.parent, p);
  }

// Zoom to the specified new root.
  function zoom(root, p) {
    if (document.documentElement.__transition__) return;

// Rescale outside angles to match the new layout.
    var enterArc,
        exitArc,
        outsideAngle = d3.scale.linear().domain([0, 2 * Math.PI]);

function insideArc(d) {
      return p.key > d.key
          ? {depth: d.depth - 1, x: 0, dx: 0} : p.key < d.key
          ? {depth: d.depth - 1, x: 2 * Math.PI, dx: 0}
          : {depth: 0, x: 0, dx: 2 * Math.PI};
    }

function outsideArc(d) {
      return {depth: d.depth + 1, x: outsideAngle(d.x), dx: outsideAngle(d.x + d.dx) - outsideAngle(d.x)};
    }

center.datum(root);

// When zooming in, arcs enter from the outside and exit to the inside.
    // Entering outside arcs start from the old layout.
    if (root === p) enterArc = outsideArc, exitArc = insideArc, outsideAngle.range([p.x, p.x + p.dx]);
	
	 var new_data=partition.nodes(root).slice(1)

path = path.data(new_data, function(d) { return d.key; });
	 	 
	 // When zooming out, arcs enter from the inside and exit to the outside.
    // Exiting outside arcs transition to the new layout.
    if (root !== p) enterArc = insideArc, exitArc = outsideArc, outsideAngle.range([p.x, p.x + p.dx]);

d3.transition().duration(d3.event.altKey ? 7500 : 750).each(function() {
      path.exit().transition()
          .style("fill-opacity", function(d) { return d.depth === 1 + (root === p) ? 1 : 0; })
          .attrTween("d", function(d) { return arcTween.call(this, exitArc(d)); })
          .remove();
          
      path.enter().append("path")
          .style("fill-opacity", function(d) { return d.depth === 2 - (root === p) ? 1 : 0; })
          .style("fill", function(d) { return d.fill; })
          .on("click", zoomIn)
			 .on("mouseover", mouseOverArc)
      	 .on("mousemove", mouseMoveArc)
      	 .on("mouseout", mouseOutArc)
          .each(function(d) { this._current = enterArc(d); });

path.transition()
          .style("fill-opacity", 1)
          .attrTween("d", function(d) { return arcTween.call(this, updateArc(d)); });
          
      
         
    });
    
    
	 texts = texts.data(new_data, function(d) { return d.key; })
	 
	 texts.exit()
	         .remove()    
    texts.enter()
            .append("text")
      	
    texts.style("opacity", 0)
      .attr("transform", function(d) { return "rotate(" + computeTextRotation(d) + ")"; })
		.attr("x", function(d) { return radius / 3 * d.depth; })	
		.attr("dx", "6") // margin
      .attr("dy", ".35em") // vertical-align
      .filter(filter_min_arc_size_text)    	
      .text(function(d,i) {return d.name})
		.transition().delay(750).style("opacity", 1)
      	
		 
  }
});

function key(d) {
  var k = [], p = d;
  while (p.depth) k.push(p.name), p = p.parent;
  return k.reverse().join(".");
}

function fill(d) {
  var p = d;
  while (p.depth > 1) p = p.parent;
  var c = d3.lab(hue(p.name));
  c.l = luminance(d.sum);
  return c;
}

function arcTween(b) {
  var i = d3.interpolate(this._current, b);
  this._current = i(0);
  return function(t) {
    return arc(i(t));
  };
}

function updateArc(d) {
  return {depth: d.depth, x: d.x, dx: d.dx};
}

d3.select(self.frameElement).style("height", margin.top + margin.bottom + "px");

</script>

Modified http://d3js.org/d3.v3.min.js to a secure url

https://d3js.org/d3.v3.min.js