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index.html
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index.html
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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<script data-require="d3@*" data-semver="3.5.3" src="//cdnjs.cloudflare.com/ajax/libs/d3/3.5.3/d3.js"></script>
<script data-require="jquery@*" data-semver="2.1.4" src="https://code.jquery.com/jquery-2.1.4.js"></script>
<style>
.node {
cursor: pointer;
}
.node circle {
fill: #fff;
stroke-width: 1.5px;
}
.node text {
font: 11px sans-serif;
}
.link {
fill: none;
stroke: #ccc;
stroke-width: 1.5px;
}
#container {
margin:0%;
padding:20px;
}
select {
position: absolute;
margin-left: 3px;
height: 21px;
width: 70px;
overflow: hidden;
padding-top: 1px;
}
option {
display:inline-block;
}
</style>
</head>
<body onload="sizeChange()">
<span id="buttons">
<button onclick="expandAll(true)">Expand all</button>
<button onclick="collapseAll(true)">Collapse all</button>
</span>
<span style="margin-left:10px">Show priorities:</span>
<select multiple="" id="selectPriority" onchange="showPriority()">
<option value="All" selected="">All</option>
<option value="1">1</option>
<option value="2">2</option>
<option value="3">3</option>
<option value="4">4</option>
</select>
<div id="container"></div>
<script>
d3.select(window)
.on("resize", sizeChange);
var margin = {top: 20, right: 120, bottom: 60, left: 120},
width = 1500 - margin.right - margin.left,
height = 1000 - margin.top - margin.bottom;
var i = 0,
duration = 750,
root;
var tree = d3.layout.tree()
.size([height, width]);
var diagonal = d3.svg.diagonal()
.projection(function(d) { return [d.y, d.x]; });
var svg = d3.select("#container").append("svg")
.attr("width", width + margin.right + margin.left)
.attr("height", height + margin.top + margin.bottom)
.append("g")
.attr("transform", "translate(" + margin.left + "," + margin.top + ")");
d3.json("overview.json", function(error, ov) {
if (error) throw error;
root = ov;
root.x0 = height / 2;
root.y0 = 0;
root.children.forEach(collapse);
update(root);
});
d3.select(self.frameElement).style("height", "800px");
function update(source) {
// Compute the new tree layout.
var nodes = tree.nodes(root).reverse(),
links = tree.links(nodes);
// Normalize for fixed-depth.
nodes.forEach(function(d) { d.y = d.depth * 300; });
// Update the nodes…
var node = svg.selectAll("g.node")
.data(nodes, function(d) { return d.id || (d.id = ++i); });
// Enter any new nodes at the parent's previous position.
var nodeEnter = node.enter().append("g")
.attr("class", "node")
.attr("transform", function(d) { return "translate(" + source.y0 + "," + source.x0 + ")"; })
.on("click", click);
nodeEnter.append("circle")
.attr("r", 1e-6)
.attr("stroke", function(d) {return d.priority? rainbow(d.priority) : "steelblue";})
.style("fill", function(d) { return d._children ? "lightsteelblue" : "#fff"; });
var textWidth = function(d) {return (d.name.length)*5;};
nodeEnter.append("rect")
.attr("x", function(d) { return d.children || d._children ? (-textWidth(d)-10) : 10; })
.attr("y",-5)
.attr("width",textWidth)
.attr("height",12)
.style("fill", "white");
nodeEnter.append("text")
.attr("x", function(d) { return d.children || d._children ? -10 : 10; })
.attr("dy", ".35em")
.attr("text-anchor", function(d) { return d.children || d._children ? "end" : "start"; })
.text(function(d) { return d.name; })
.style("fill-opacity", 1e-6);
// Transition nodes to their new position.
var nodeUpdate = node.transition()
.duration(duration)
.attr("transform", function(d) { return "translate(" + d.y + "," + d.x + ")"; });
nodeUpdate.select("circle")
.attr("r", function(d) {return d.priority ? Math.max(6.5-d.priority,0.5) : 4.5;})
.style("fill", function(d) { return d._children ? "lightsteelblue" : "#fff"; });
nodeUpdate.select("text")
.style("fill-opacity", 1);
// Transition exiting nodes to the parent's new position.
var nodeExit = node.exit().transition()
.duration(duration)
.attr("transform", function(d) { return "translate(" + source.y + "," + source.x + ")"; })
.remove();
nodeExit.select("circle")
.attr("r", 1e-6);
nodeExit.select("text")
.style("fill-opacity", 1e-6);
// Update the links…
var link = svg.selectAll("path.link")
.data(links, function(d) { return d.target.id; });
// Enter any new links at the parent's previous position.
link.enter().insert("path", "g")
.attr("class", "link")
.attr("d", function(d) {
var o = {x: source.x0, y: source.y0};
return diagonal({source: o, target: o});
});
// Transition links to their new position.
link.transition()
.duration(duration)
.attr("d", diagonal);
// Transition exiting nodes to the parent's new position.
link.exit().transition()
.duration(duration)
.attr("d", function(d) {
var o = {x: source.x, y: source.y};
return diagonal({source: o, target: o});
})
.remove();
// Stash the old positions for transition.
nodes.forEach(function(d) {
d.x0 = d.x;
d.y0 = d.y;
});
}
// Toggle children on click.
function click(d) {
if (d.children) {
d._children = d.children;
d.children = null;
} else {
d.children = d._children;
d._children = null;
}
update(d);
}
// Map priorities to colours
function rainbow(n,num) {
num = num || 7
n = (num+1) - Math.min(n,num);
n = n * 360 / num;
return 'hsl(' + n + ',100%,50%)';
}
function collapse(d) {
if (d.children) {
d._children = d.children;
d._children.forEach(collapse);
d.children = null;
}
}
function collapseAll(setPriorityToAll) {
if(setPriorityToAll) document.querySelector("select").value = "All";
root.children.forEach(collapse);
update(root);
}
function expand(d) {
if (d._children) {
d.children = d._children;
d.children.forEach(expand);
d._children = null;
}
}
function expandAll(setPriorityToAll) {
if(setPriorityToAll) {
document.querySelector("select").value = "All";
showPriority();
}
root.children.forEach(collapse);
root.children.forEach(expand);
update(root);
}
function sizeChange() {
d3.select("g").attr("transform", "scale(" + $("#container").width()/1800 + ") translate(" + margin.left + "," + margin.top + ")");
$("svg").height($("#container").width()*0.52);
}
Array.prototype.contains = function(obj) {
var i = this.length;
while (i--) {if (this[i] === obj) return true;}
return false;
}
function getChildPriorities(d, childPriorities) {
if(!d.children) {
childPriorities[+d.priority]=true;
return childPriorities;
}
else {
var i = 0;
while(i<d.children.length) {
grandChildPriorities = getChildPriorities(d.children[i],childPriorities);
jQuery.extend(childPriorities, grandChildPriorities);
i += 1;
}
return childPriorities;
}
}
function intsect(arr, obj) {
for(i=0;i<arr.length;i++) {
if(arr[i] in obj) return true;
}
return false;
}
function showPriority() {
expandAll();
var elems = document.querySelector("select").selectedOptions,
priorities = [];
for(i=0;i<elems.length;i++) priorities.push(elems[i].text);
var node = svg.selectAll("g.node"),
link = svg.selectAll("path.link");
// If "All", show all elements
if(priorities[0] == "All") {
// Unhide all nodes and links
node.attr("visibility", "visible");
link.attr("visibility", "visible");
}
// Otherwise, hide all elements not with that value for priority
else {
// Convert priorities to ints
var prioritiesInt = [];
for(i=0;i<priorities.length;i++) prioritiesInt.push(+priorities[i]);
// Show only nodes and links with the priority selected (and their roots)
node.attr("visibility", function(d) {
var childPriorities = getChildPriorities(d,{});
if(prioritiesInt.contains(d.priority)) return "visible"; // leaf nodes
else if(intsect(prioritiesInt,childPriorities)) return "visible"; // parents of leaf nodes
else return "hidden";
});
link.attr("visibility", function(d) {
var childPriorities = getChildPriorities(d.target,{});
if(prioritiesInt.contains(d.target.priority)) return "visible";
else if(intsect(prioritiesInt,childPriorities)) return "visible";
else return "hidden";
});
}
}
</script>
</body>
</html>