santex/cymatics

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

.node {
  cursor: pointer;
}

.node:hover {
  stroke: #000;
  stroke-width: 1.5px;
}

.node--leaf {
  fill: white;
}

.label {
  font: 11px "Helvetica Neue", Helvetica, Arial, sans-serif;
  text-anchor: middle;
  text-shadow: 0 1px 0 #fff, 1px 0 0 #fff, -1px 0 0 #fff, 0 -1px 0 #fff;
}

.label,
.node--root,
.node--leaf {
  pointer-events: none;
}

</style>
<body>
<script src="http://d3js.org/d3.v3.min.js"></script>
<script>

var margin = 20,
    diameter = 960;

var color = d3.scale.linear()
    .domain([-1, 5])
    .range(["hsl(152,80%,80%)", "hsl(228,30%,40%)"])
    .interpolate(d3.interpolateHcl);

var pack = d3.layout.pack()
    .padding(2)
    .size([diameter - margin, diameter - margin])
    .value(function(d) { return d.size; })

var svg = d3.select("body").append("svg")
    .attr("width", diameter)
    .attr("height", diameter)
  .append("g")
    .attr("transform", "translate(" + diameter / 2 + "," + diameter / 2 + ")");

d3.json("http://active-memory.de:3000/gz:cymatics", function(error, root) {
  if (error) return console.error(error);

  var focus = root,
      nodes = pack.nodes(root),
      view;

  var circle = svg.selectAll("circle")
      .data(nodes)
    .enter().append("circle")
      .attr("class", function(d) { return d.parent ? d.children ? "node" : "node node--leaf" : "node node--root"; })
      .style("fill", function(d) { return d.children ? color(d.depth) : null; })
      .on("click", function(d) { if (focus !== d) zoom(d), d3.event.stopPropagation(); });

  var text = svg.selectAll("text")
      .data(nodes)
    .enter().append("text")
      .attr("class", "label")
      .style("fill-opacity", function(d) { return d.parent === root ? 1 : 0; })
      .style("display", function(d) { return d.parent === root ? null : "none"; })
      .text(function(d) { return d.name; });

  var node = svg.selectAll("circle,text");

  d3.select("body")
      .style("background", color(-1))
      .on("click", function() { zoom(root); });

  zoomTo([root.x, root.y, root.r * 2 + margin]);

  function zoom(d) {
    var focus0 = focus; focus = d;

    var transition = d3.transition()
        .duration(d3.event.altKey ? 7500 : 750)
        .tween("zoom", function(d) {
          var i = d3.interpolateZoom(view, [focus.x, focus.y, focus.r * 2 + margin]);
          return function(t) { zoomTo(i(t)); };
        });

    transition.selectAll("text")
      .filter(function(d) { return d.parent === focus || this.style.display === "inline"; })
        .style("fill-opacity", function(d) { return d.parent === focus ? 1 : 0; })
        .each("start", function(d) { if (d.parent === focus) this.style.display = "inline"; })
        .each("end", function(d) { if (d.parent !== focus) this.style.display = "none"; });
  }

  function zoomTo(v) {
    var k = diameter / v[2]; view = v;
    node.attr("transform", function(d) { return "translate(" + (d.x - v[0]) * k + "," + (d.y - v[1]) * k + ")"; });
    circle.attr("r", function(d) { return d.r * k; });
  }
});

d3.select(self.frameElement).style("height", diameter + "px");

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

	.node {
	cursor: pointer;
	}

	.node:hover {
	stroke: #000;
	stroke-width: 1.5px;
	}

	.node--leaf {
	fill: white;
	}

	.label {
	font: 11px "Helvetica Neue", Helvetica, Arial, sans-serif;
	text-anchor: middle;
	text-shadow: 0 1px 0 #fff, 1px 0 0 #fff, -1px 0 0 #fff, 0 -1px 0 #fff;
	}

	.label,
	.node--root,
	.node--leaf {
	pointer-events: none;
	}

	</style>
	<body>
	<script src="http://d3js.org/d3.v3.min.js"></script>
	<script>

	var margin = 20,
	diameter = 960;

	var color = d3.scale.linear()
	.domain([-1, 5])
	.range(["hsl(152,80%,80%)", "hsl(228,30%,40%)"])
	.interpolate(d3.interpolateHcl);

	var pack = d3.layout.pack()
	.padding(2)
	.size([diameter - margin, diameter - margin])
	.value(function(d) { return d.size; })

	var svg = d3.select("body").append("svg")
	.attr("width", diameter)
	.attr("height", diameter)
	.append("g")
	.attr("transform", "translate(" + diameter / 2 + "," + diameter / 2 + ")");

	d3.json("http://active-memory.de:3000/gz:cymatics", function(error, root) {
	if (error) return console.error(error);

	var focus = root,
	nodes = pack.nodes(root),
	view;

	var circle = svg.selectAll("circle")
	.data(nodes)
	.enter().append("circle")
	.attr("class", function(d) { return d.parent ? d.children ? "node" : "node node--leaf" : "node node--root"; })
	.style("fill", function(d) { return d.children ? color(d.depth) : null; })
	.on("click", function(d) { if (focus !== d) zoom(d), d3.event.stopPropagation(); });

	var text = svg.selectAll("text")
	.data(nodes)
	.enter().append("text")
	.attr("class", "label")
	.style("fill-opacity", function(d) { return d.parent === root ? 1 : 0; })
	.style("display", function(d) { return d.parent === root ? null : "none"; })
	.text(function(d) { return d.name; });

	var node = svg.selectAll("circle,text");

	d3.select("body")
	.style("background", color(-1))
	.on("click", function() { zoom(root); });

	zoomTo([root.x, root.y, root.r * 2 + margin]);

	function zoom(d) {
	var focus0 = focus; focus = d;

	var transition = d3.transition()
	.duration(d3.event.altKey ? 7500 : 750)
	.tween("zoom", function(d) {
	var i = d3.interpolateZoom(view, [focus.x, focus.y, focus.r * 2 + margin]);
	return function(t) { zoomTo(i(t)); };
	});

	transition.selectAll("text")
	.filter(function(d) { return d.parent === focus \|\| this.style.display === "inline"; })
	.style("fill-opacity", function(d) { return d.parent === focus ? 1 : 0; })
	.each("start", function(d) { if (d.parent === focus) this.style.display = "inline"; })
	.each("end", function(d) { if (d.parent !== focus) this.style.display = "none"; });
	}

	function zoomTo(v) {
	var k = diameter / v[2]; view = v;
	node.attr("transform", function(d) { return "translate(" + (d.x - v[0]) * k + "," + (d.y - v[1]) * k + ")"; });
	circle.attr("r", function(d) { return d.r * k; });
	}
	});

	d3.select(self.frameElement).style("height", diameter + "px");

	</script>