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var w = 960,
h = 700,
fill = d3.scale.category20();
var vis = d3.select("#chart")
.append("svg:svg")
.attr("width", w)
.attr("height", h);
vis.append("svg:g").attr("class", "edges");
vis.append("svg:g").attr("class", "nodes");
$(function() {
$.ajax({
url: '/gstudio/graphs/rgraph',
//crossDomain: true,
//dataType: 'jsonp',
success : function(json) {
var force;
var nodes_by_id = _.reduce(json.node_metadata, function(acc, n) {
acc[n._id] = n;
return acc;
}, {});
var follows_edges = _(json.is_followed_by).chain().map(function(e) {
e.source = nodes_by_id[e.from];
e.target = nodes_by_id[e.to];
e.type = 'follows_edges';
return e;
}).filter(function(e){
return nodes_by_id[e.from] && nodes_by_id[e.to]
}).value();
var mentions_edges = _(json.is_mentioned_by).chain().map(function(e) {
e.source = nodes_by_id[e.from];
e.target = nodes_by_id[e.to];
e.type = 'mentions_edges';
return e;
}).filter(function(e){
return nodes_by_id[e.from] && nodes_by_id[e.to]
}).value();
nodes_by_id['189087228'].x = w/2.0;
nodes_by_id['189087228'].y = h/2.0;
var force = d3.layout.force()
.linkStrength(0.5)
.charge(-2000)
.friction(0.7)
.linkDistance(50)
.nodes([])
.links([])
.size([w, h])
.start();
function update(edges){
_.each(nodes_by_id, function(n){n.added = false});
var nodes = _.reduce(edges, function(acc, e) {
if(nodes_by_id[e.from] && !nodes_by_id[e.from].added){
nodes_by_id[e.from].added = true;
acc.push(nodes_by_id[e.from]);
}
if(nodes_by_id[e.to] && !nodes_by_id[e.to].added){
nodes_by_id[e.to].added = true;
acc.push(nodes_by_id[e.to]);
}
return acc;
}, []);
force.nodes(nodes);
force.links(edges);
force.start();
var link = d3.select("#chart g.edges").selectAll("line.link")
.data(edges, function(e){return e.from + "-" + e.to + "-" + e.type});
link.enter().append("svg:line")
.attr("class", "link")
.style("stroke-width", function(d) {
return Math.sqrt(d.value);
})
.attr("x1", function(d) {
return d.source.x;
})
.attr("y1", function(d) {
return d.source.y;
})
.attr("x2", function(d) {
return d.target.x;
})
.attr("y2", function(d) {
return d.target.y;
});
link.exit().remove();
var node = d3.select("#chart g.nodes").selectAll("g.node").data(nodes);
var new_g = node.enter().append("svg:g")
.attr("class", "node")
.call(force.drag);
new_g.append("svg:image").attr('xlink:href',
function(d) {
return d.profile_image_url;
}).attr('height', 32).attr('width', 32);
new_g.append("svg:text")
.attr("dy", 46)
.attr("text-anchor", "middle")
.text(function(d) {
return d.screen_name;
});
node.exit().remove();
force.on("tick", function() {
var x_center = $("#chart").width() / 2;
var y_center = $("#chart").height() / 2;
link.attr("x1", function(d) { return d.source.x; })
.attr("y1", function(d) { return d.source.y; })
.attr("x2", function(d) { return d.target.x; })
.attr("y2", function(d) { return d.target.y; });
node.attr("transform", function(d) { return "translate(" + (d.x-16) + "," + (d.y-16) + ")"; });
});
}
update(follows_edges);
vis.style("opacity", 1e-6)
.transition()
.duration(1000)
.style("opacity", 1);
$('input#follows').change(function(){
update(follows_edges);
});
$('input#mentions').change(function(){
update(mentions_edges);
});
}
});
$("#relation_type").buttonset();
$('input#mentions').change(function(){console.log(this)});
$('input#hashtags').change(function(){console.log(this)});
});
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