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index.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>Shareablee Dot</title>
<script src="https://d3js.org/d3.v3.min.js" charset="utf-8"></script>
<style>
@import url(https://fonts.googleapis.com/css?family=Source+Code+Pro:400,600);
body {font-family: "Source Code Pro", Consolas, monaco, monospace; line-height: 160%; font-size: 16px; margin: 0; }
path.link {
fill: none;
stroke-width: 2px;
}
.node:not(:hover) .nodetext {
display: none;
}
h1 { font-size: 36px; margin: 10px 0; text-transform: uppercase; font-weight: normal;}
h2, h3 { font-size: 18px; margin: 5px 0 ; font-weight: normal;}
header {padding: 20px; position: absolute; top: 0; left: 0;}
a:link { color: #EE3124; text-decoration: none;}
a:visited { color: #EE3124; }
a:hover { color: #A4CD39; text-decoration: underline;}
a:active { color: #EE3124; }
</style>
</head>
<body>
<header>
<h1>Shareablee DOT</h1>
<h2>Click to view their identity</h2>
<h3>And link to their web page!</h3>
</header>
<!-- container for force layout visualisation -->
<section id="vis"></section>
<script>
// some colour variables
var tcBlack = "#130C0E";
// rest of vars
var w = 1500,
h = 900,
maxNodeSize = 50,
x_browser = 0,
y_browser = 25,
root;
var vis;
var force = d3.layout.force();
vis = d3.select("#vis").append("svg").attr("width", w).attr("height", h);
d3.json("marvel.json", function(json) {
root = json;
root.fixed = true;
root.x = w / 2;
root.y = h / 4;
// Build the path
var defs = vis.insert("svg:defs")
.data(["end"]);
defs.enter().append("svg:path")
.attr("d", "M0,-5L10,0L0,5");
update();
});
/**
*
*/
function update() {
var nodes = flatten(root),
links = d3.layout.tree().links(nodes);
// Restart the force layout.
force.nodes(nodes)
.links(links)
.gravity(0.1)
.charge(-1300)
.linkDistance(100)
.friction(0.3)
.linkStrength(function(l, i) {return 1; })
.size([w, h])
.on("tick", tick)
.start();
var path = vis.selectAll("path.link")
.data(links, function(d) { return d.target.id; });
path.enter().insert("svg:path")
.attr("class", "link")
// .attr("marker-end", "url(#end)")
.style("stroke", "#eee");
// Exit any old paths.
path.exit().remove();
// Update the nodes…
var node = vis.selectAll("g.node")
.data(nodes, function(d) { return d.id; });
// Enter any new nodes.
var nodeEnter = node.enter().append("svg:g")
.attr("class", "node")
.attr("transform", function(d) { return "translate(" + d.x + "," + d.y + ")"; })
.on("click", click)
.call(force.drag);
// Append a circle
nodeEnter.append("svg:circle")
.attr("r", function(d) { return Math.sqrt(d.size) / 10 || 4.5; })
.style("fill", "#eee");
// Append images
var images = nodeEnter.append("svg:image")
.attr("xlink:href", function(d) { return d.img;})
.attr("x", function(d) { return -25;})
.attr("y", function(d) { return -25;})
.attr("height", 50)
.attr("width", 50);
// make the image grow a little on mouse over and add the text details on click
var setEvents = images
// Append hero text
.on( 'click', function (d) {
d3.select("h1").html(d.hero);
d3.select("h2").html(d.name);
d3.select("h3").html ("Link: " + "<a href='" + d.link + "' >" + d.hero + "</a>" );
})
.on( 'mouseenter', function() {
// select element in current context
d3.select( this )
.transition()
.attr("x", function(d) { return -60;})
.attr("y", function(d) { return -60;})
.attr("height", 100)
.attr("width", 100);
})
// set back
.on( 'mouseleave', function() {
d3.select( this )
.transition()
.attr("x", function(d) { return -25;})
.attr("y", function(d) { return -25;})
.attr("height", 50)
.attr("width", 50);
});
// Append hero name on roll over next to the node as well
nodeEnter.append("text")
.attr("class", "nodetext")
.attr("x", x_browser)
.attr("y", y_browser +15)
.attr("fill", tcBlack)
.text(function(d) { return d.hero; });
// Exit any old nodes.
node.exit().remove();
// Re-select for update.
path = vis.selectAll("path.link");
node = vis.selectAll("g.node");
function tick() {
path.attr("d", function(d) {
var dx = d.target.x - d.source.x,
dy = d.target.y - d.source.y,
dr = Math.sqrt(dx * dx + dy * dy);
return "M" + d.source.x + ","
+ d.source.y
+ "A" + dr + ","
+ dr + " 0 0,1 "
+ d.target.x + ","
+ d.target.y;
});
node.attr("transform", nodeTransform);
}
}
/**
* Gives the coordinates of the border for keeping the nodes inside a frame
* http://bl.ocks.org/mbostock/1129492
*/
function nodeTransform(d) {
d.x = Math.max(maxNodeSize, Math.min(w - (d.imgwidth/2 || 16), d.x));
d.y = Math.max(maxNodeSize, Math.min(h - (d.imgheight/2 || 16), d.y));
return "translate(" + d.x + "," + 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();
}
/**
* Returns a list of all nodes under the root.
*/
function flatten(root) {
var nodes = [];
var i = 0;
function recurse(node) {
if (node.children)
node.children.forEach(recurse);
if (!node.id)
node.id = ++i;
nodes.push(node);
}
recurse(root);
return nodes;
}
</script>
</body>
</html>