D3 Examples - Game of Thrones Battles in D3

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<!DOCTYPE html>
<meta charset="utf-8">
<script src="https://d3js.org/d3.v3.min.js" charset="utf-8"></script>
<!-- Latest compiled and minified CSS -->
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css" integrity="sha384-1q8mTJOASx8j1Au+a5WDVnPi2lkFfwwEAa8hDDdjZlpLegxhjVME1fgjWPGmkzs7" crossorigin="anonymous">
<style>
​
.tooltip {
  position: absolute;
  max-width: 400px;
  height: auto;
  padding: 5px;
  background-color: white;
  -webkit-border-radius: 5px;
  -moz-border-radius: 5px;
  border-radius: 5px;
  -webkit-box-shadow: 4px 4px 10px rgba(0, 0, 0, 0.4);
  -moz-box-shadow: 4px 4px 10px rgba(0, 0, 0, 0.4);
  box-shadow: 4px 4px 10px rgba(0, 0, 0, 0.4);
  pointer-events: none; /* MUY IMPORTANTE! */
  font-family: sans-serif;
  font-size:12px;
}
​
path.link {
  fill: none;
  stroke-width: 2px;
}
​
path.link.win{
    stroke: #a6d96a;
}
​
path.link.loss{
    stroke: #ca0020;
}
​
​
text {
  fill: #000;
  font: 10px sans-serif;
  pointer-events: none;
}
​
​
</style>
<body>
<!--<h1>Game of Thrones Battles</h1>-->
<p>Every battle beteween major houses and groups. Hover the line for details.</p>
<script>
​
// get the data
d3.csv("battles.csv", function(error, links) {
​
var nodes = {};
​
// Compute the distinct nodes from the links.
links.forEach(function(link) {
    link.source = nodes[link.source] ||
        (nodes[link.source] = {name: link.source});
    link.target = nodes[link.target] ||
        (nodes[link.target] = {name: link.target});
    link.value = +link.value;
});
​
//setup our window
var width = window.innerWidth*0.8,
    height = window.innerHeight*0.8;
​
//build the layout
var force = d3.layout.force()
    .nodes(d3.values(nodes))
    .links(links)
    .size([width, height])
    .linkDistance(100)
    .charge(-1800)
    .on("tick", tick)
    .start();
​
var svg = d3.select("body").append("svg")
    .attr("width", width)
    .attr("height", height);
    
//add hovercard
var hovercard = d3.select("body").append("div")
    .attr("class", "tooltip")
    .style("opacity", 0)
    .style("width",400);
​
// build the arrow.
svg.append("svg:defs").selectAll("marker")
    .data(["end"])      // Different link/path types can be defined here
  .enter().append("svg:marker")    // This section adds in the arrows
    .attr("id", String)
    .attr("viewBox", "0 -5 10 10")
    .attr("refX", 25)
    .attr("refY", -1.5) 
    .attr("markerWidth", 6)
    .attr("markerHeight", 6)
    .attr("orient", "auto")
    .attr("fill", "#404040")
  .append("svg:path")
    .attr("d", "M0,-5L10,0L0,5");
​
// add the links and the arrows
var path = svg.append("svg:g").selectAll("path")
    .data(force.links())
  .enter().append("svg:path")
    .attr("class", function(d) { return "link " + d.type; })
    .attr("class", "link")
    .attr("marker-end", "url(#end)");
​
// define the nodes
var node = svg.selectAll(".node")
    .data(force.nodes())
  .enter().append("g")
    .attr("class", "node")
    .call(force.drag);
​
// add the nodes matching the images
// node.append("circle")
//     .attr("r", 25)
node.append("image")
        .attr("xlink:href", function(d) {  return "https://raw.githubusercontent.com/bsullins/got-images/master/img/"+encodeURI(d.name).toLowerCase().replace(/'/g, '')+".png"; })
        .attr("x", function(d) { return -25;})
        .attr("y", function(d) { return -25;})
        .attr("height", 50)
        .attr("width", 50);
​
​
// add the text
node.append("text")
    .attr("text-anchor", "middle")
    .attr("dy", ".35em")
    .attr("y",-32)
    .text(function(d) { return d.name; });
​
// add the curvy lines
function tick() {
​
    
    path.attr("d", function(d, i) {
        
        var dx = d.target.x - d.source.x + (i*10), //separate the lines
            dy = d.target.y - d.source.y + (i*10),
            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;
    });
    
    path.attr("class", function(d) { return "link "+ d.attacker_outcome});
    
    path.on("mouseover", function(d) {
        
        
           hovercard.transition()
                    .duration(500)
                    .style("opacity", 1);
    
                var tip = 
                    "<h2>" + d.name + "</h2>" + 
                    "<h4> " +d.source.name + " attacked " + d.target.name + " and the outcome was a " + d.attacker_outcome + "</h4>" +
                    "<h3>Details</h3>" +
                    "<strong> Attacker King: </strong>" + d.attacker_king + "<br/>" +
                    "<strong> Battle Type: </strong>" + d.battle_type + "<br/>" +
                    "<strong> Major Death?: </strong>" + d.major_death + "<br/>" +
                    "<strong> Major Capture?: </strong>" + d.major_capture + "<br/>" +
                    "<strong> Attacker Size: </strong>" + d.value + "<br/>" +
                    "<strong> Defender Size: </strong>" + d.defender_size + "<br/>" +
                    "<strong> Region / Location: </strong>" + d.region + " / " + d.location + "<br/>" +
                    "<strong> Attacking Commander: </strong>" + d.attacker_commander + "<br/>" +
                    "<strong> Defending Commander: </strong>" + d.defender_commander;
                    
             
                hovercard.html(tip)
                    .style("left", (d3.event.pageX) + "px")
                    .style("top", (d3.event.pageY) + "px");
        
    });
    
    path.on("mouseout", function(d) {
​
            hovercard.transition()
                .duration(500)
                .style("opacity", 0);
    });
    
    node
        .attr("transform", function(d) {
        return "translate(" + d.x + "," + d.y + ")"; });
        
    
}
​
});
​
</script>
</body>
</html>
​
    