CS512Visualization-/circle.html at master · Sonnbc/CS512Visualization- · GitHub

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<!DOCTYPE html>
<html>
  <head>
    <meta http-equiv="Content-Type" content="text/html;charset=utf-8"/>
    <link type="text/css" rel="stylesheet" href="style.css"/>
    <style type="text/css">

text {
  font-size: 13px;
  pointer-events: none;
}

text.parent {
  fill: black;
}

circle {
  fill: #ccc;
  stroke: #999;
  pointer-events: all;
}

circle.parent {
  fill: #1f77b4;
  fill-opacity: .1;
  stroke: steelblue;
}

circle.parent:hover {
  stroke: #ff7f0e;
  stroke-width: .5px;
}

circle.child {
  fill: #ff7f0e;
  pointer-events: none;
  fill-opacity: .1;
}

    </style>
  </head>
  <body>
    <div id="body">
      <div id="header">
        Computer Science Topic Hierarchy
        <div class="hint">click or option-click to descend or ascend</div>
		<div class="hint">
		<p>Choose Number of phrases and data to visualize</p>
		<select id='phrases'>
			<option value="4">4 phrases</option>
			<option value="5">5 phrases</option>
			<option value="6">6 phrases</option>
			<option value="7">7 phrases</option>
		</select>
		<select id='filename'>
			<option value="hpamData.json">hpam data</option>
			<option value="kmeansData.json">speclus data</option>
			<option value="ngramData.json">ngram data</option>
		</select>

      </div>

	  <div id="footer">
		<h1> Current category:</h1>
		<div/>
	  </div>

    </div>
    <script type="text/javascript" src="d3/d3.js"></script>
    <script type="text/javascript" src="d3/d3.layout.js"></script>
	<script type="text/javascript" src="jquery.js"></script>

    <script type="text/javascript">
visualize(4, 'hpamData.json');
$('#phrases').change(function(){d3.select("svg").remove(); visualize($(this).val(),$('#filename').find(":selected").val())});
$('#filename').change(function(){d3.select("svg").remove(); visualize($('#phrases').find(":selected").val(),$(this).val())});


function visualize(num_of_phrases, filename){
	var w = 1280,
		h = 1050,
		r = 1000,
		x = d3.scale.linear().range([0, r]),
		y = d3.scale.linear().range([0, r]),
		node,
		root,
		radius;

	var pack = d3.layout.pack()
		.size([r, r])
		.value(function(d) { return d.size; })

	var vis = d3.select("body").insert("svg:svg", "h2")
		.attr("width", w)
		.attr("height", h)
		.append("svg:g")
		.attr("transform", "translate(" + (w - r) / 2 + "," + (h - r) / 2 + ")");

	var current = 0;
	d3.json(filename, function(data) {
		node = root = data;

		renderFooter(root,num_of_phrases);
		var nodes = pack.nodes(root);

		var group = vis.selectAll("g")
			.data(nodes)
			.enter().append("svg:g")
			.attr("x", function(d) {return d.x; })
			.attr("y", function(d) {return d.y; })
			.on("click", function(d) {
				return zoom(node == d ? root : d);
				}
			);

		var circle = group.append("svg:circle")
			.attr("class", function(d) { return d.children ? "parent" : "child"; })
			.attr("cx", function(d) {return d.x; })
			.attr("cy", function(d) {return d.y; })
			.attr("r", function(d) { radius = d.r; return d.r; })
			.attr("text",function(d){ return d.name;})


		var svgtxt = group.append("svg:text")
			.attr("class", function(d) { return d.children ? "parent" : "child"; })
			.attr("x", function(d) {return d.x-d.w; })
			.attr("y", function(d) {return d.y-d.r/2; })
			//.attr("dy", ".35em")
			.attr("text-anchor", "middle")
			.style("opacity", function(d) {
			//return d.r > 20 ? 1 : 0;
			return d.depth == current + 1 ? 1 : 0;
			})
			for(var i=0; i<num_of_phrases;i++){
				svgtxt.append("svg:tspan")
					.attr('x', function(d){return d.x})
					.attr('dy','1.3em')
					  .style("font-weight", function(d) { return "bold"; })
					  //.style("fill", function(d) { return "red"; })
					  .text(function(d) {
							//console.log(d);
							var name = d.name;
							var nameSplit = name.split(",");
							if(i>=nameSplit.length || nameSplit[i].length==0){
								return "";
							}else{
								return nameSplit[i];
							}
						});
		}

		d3.select(window).on("click", function() { zoom(root); });
	});

	function zoom(d, i) {
		current = d.depth;
		renderFooter(d,num_of_phrases);
		current = d.depth;
		var k = r / d.r / 2;
		x.domain([d.x - d.r, d.x + d.r]);
		y.domain([d.y - d.r, d.y + d.r]);

		var t = vis.transition()
			.duration(d3.event.altKey ? 7500 : 750);

		t.selectAll("circle")
			.attr("cx", function(d) { return x(d.x); })
			.attr("cy", function(d) { return y(d.y); })
			.attr("r", function(d) { return k * d.r; });

		t.selectAll("text")
			.attr("x", function(d) { return x(d.x); })
			.attr("y", function(d) { return y(d.y)-d.r/2; })
			.style("opacity", function(d) {
				//return k * d.r > 20 ? 1 : 0;
				return d.depth == current + 1 ? 1 : 0;
			});
		t.selectAll("tspan")
			.attr("x", function(d){ return x(d.x)});
		node = d;
		d3.event.stopPropagation();

	}
	function renderFooter(d, num_of_phrases) {
	var name = d.name;
	var nameSplit = name.split(",");
	$("#footer div").html("");
	for (var i in nameSplit) {
		if(i>=num_of_phrases) break;
		$("#footer div").append(nameSplit[i] + "</br>");
	}
}
}

    </script>
  </body>
</html>