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hemulin/index.html

Created August 3, 2012 13:36
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Example of zoomable padded d3 treemap - currently without parents titles
Raw
index.html
<html>
<head>
<script type="text/javascript" src="http://d3js.org/d3.v2.js"></script>
<script type="text/javascript" src="https://github.com/mbostock/d3/blob/master/src/layout/treemap.js"></script>
<script type="text/javascript" src="https://github.com/mbostock/d3/blob/master/src/layout/hierarchy.js"></script>
<style type="text/css">
rect {
fill: none;
stroke: #fff;
}
rect:hover{
opacity: 0.5;
}
text {
font-family:"Times New Roman",Times,serif;
font-size: 12px;
}
</style>
</head>
<body>
<div id="body"></body>
<script type="text/javascript">
var pathJson = {
"name": "Sample data",
"children": [
{
"name": "Title 1", "size":1,
"children": [
{
"name": "Title 1-1", "size":1,
"children": [
{"name": "1-1-1", "size": 1},
{"name": "1-1-2", "size": 1},
{"name": "1-1-3", "size": 1},
{"name": "1-1-4", "size": 1}
]
},
{
"name": "Title 1-2", "size":1,
"children": [
{"name": "1-2-1", "size": 1},
{"name": "1-2-2", "size": 1},
{"name": "1-2-3", "size": 1}
]
},
{
"name": "Title 1-3", "size":1,
"children": [
{"name": "1-3-1", "size": 1}
]
}
]
}
]
}
var w = 1280 - 80,
h = 800 - 180,
x = d3.scale.linear().range([0, w]),
y = d3.scale.linear().range([0, h]),
color = d3.scale.category10(),
root,
node;
var treemap = d3.layout.treemap()
.round(false)
.size([w, h])
.sticky(true)
.padding([10, 0, 0, 0])
.value(function(d) { return d.size; });
var svg = d3.select("#body").append("div")
.attr("class", "chart")
.style("width", w + "px")
.style("height", h + "px")
.append("svg:svg")
.attr("width", w)
.attr("height", h)
.append("svg:g")
.attr("transform", "translate(.5,.5)");
node = root = pathJson;
var nodes = treemap.nodes(root)
.filter(function(d) { return !d.children; });
var cell = svg.selectAll("g")
.data(nodes)
.enter().append("svg:g")
.attr("class", "cell")
.attr("transform", function(d) { return "translate(" + d.x + "," + d.y + ")"; })
.on("click", function(d) { return zoom(node == d.parent ? root : d.parent); });
cell.append("svg:rect")
.attr("width", function(d) { return d.dx - 1; })
.attr("height", function(d) { return d.dy - 1; })
.style("fill", function(d) { return color(d.parent.name); });
cell.append("svg:text")
.attr("x", function(d) { return d.dx / 2; })
.attr("y", function(d) { return d.dy / 2; })
.attr("dy", ".35em")
.attr("text-anchor", "middle")
.text(function(d) { return d.name; })
.style("opacity", function(d) { d.w = this.getComputedTextLength(); return d.dx > d.w ? 1 : 0; });
d3.select(window).on("click", function() { zoom(root); });
d3.select("select").on("change", function() {
treemap.value(this.value == "size" ? size : count).nodes(root);
zoom(node);
});
function size(d) {
return d.size;
}
function count(d) {
return 1;
}
function zoom(d) {
//alert(d.name);
var kx = w / d.dx, ky = h / d.dy;
x.domain([d.x, d.x + d.dx]);
y.domain([d.y, d.y + d.dy]);
var t = svg.selectAll("g.cell").transition()
.duration(d3.event.altKey ? 7500 : 750)
.attr("transform", function(d) { return "translate(" + x(d.x) + "," + y(d.y) + ")"; });
t.select("rect")
.attr("width", function(d) { return kx * d.dx - 1; })
.attr("height", function(d) { return ky * d.dy - 1; })
t.select("text")
.attr("x", function(d) { return kx * d.dx / 2; })
.attr("y", function(d) { return ky * d.dy / 2; })
.style("opacity", function(d) { return kx * d.dx > d.w ? 1 : 0; });
//.style("font-size", function(d) { return kx * d.dx > d.w ? "20px" : "12px";});
node = d;
d3.event.stopPropagation();
}
</script>
</body>
</html>
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