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graphvis.js
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graphvis.js
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var width = 780, height = 480;
var attached_text;
var commTypeChecked = new Array(true, true, true); // by default, all communication types are checked
var label_on = false;
var unitVals = new Array("green", "orange", "blue", "red", "grey", "purple", "yellow");
var unitColors = new Array("#00ff00", "#ffa500", "#0000ff", "#ff0000", "#d3d3d3", "#800080", "#ffff00");
// the first and last empty string entries are needed to do ceiling snapshot time for each slider range
// the last empty string entry represents current latest data
var hist_data_ts = new Array("", "08-29-17", "09-15-17", "11-30-17", "12-25-17", "01-30-18", "02-28-18", "03-31-18", "04-28-18", "08-09-18", "");
var curr_ts_idx = hist_data_ts.length-1;
var unit = 100/(hist_data_ts.length-1);
var teamColors = d3.scale.ordinal()
.range(unitColors)
.domain(unitVals);
var node_opacity_val = 0.8;
var link_opacity_val = 0.8;
var node, link, fnode, linkData, nodeData, force, max_weight = 0, max_weight_node = null;
var linkedByIndex = {};
var lastSelNode = null, lastSelLink = null, lastSelLinkClr = null, lastSelNodeName = null, lastSelEdgeSource=-1, lastSelEdgeTarget=-1;
var node_stroke_clr = d3.rgb(142, 186, 229).darker();
var node_fill_clr = d3.rgb(153, 186, 221);
var link_sel_clr;
var zoom = d3.behavior.zoom();
d3.select("#datainfo").style.width=width+"px";
d3.select("#mySliderRange").style.step = String(unit);
var svg = d3.select("#chart").append("svg")
.attr("width", width)
.attr("height", height)
.append("g")
.call(zoom.scaleExtent([1, 4]).on("zoom", zoom_redraw));
// this rect is important to have zoom and pan work
var rect = svg.append("rect")
.attr("width", width)
.attr("height", height)
.style("fill", "none")
.style("pointer-events", "all");
force = d3.layout.force()
.gravity(.1)
.charge(-300)
.linkDistance(140)
.linkStrength(0.1)
.size([width, height]);
function zoom_redraw() {
svg.attr("transform", "translate(" + d3.event.translate + ")scale(" + d3.event.scale + ")");
//svg.attr("transform", "scale(" + d3.event.scale + ")");
}
function tick() {
node.attr("transform", function(d) {
size = get_node_size(d.weight, d.broadcast_msg_count)
d.x = Math.max(size, Math.min(width - size, d.x));
d.y = Math.max(size, Math.min(height - size, d.y));
return "translate(" + d.x + "," + d.y + ")";
});
//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; });
link.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);
// dr = 150/d.linknum;
dr = Math.sqrt(dx*dx+dy*dy) + Math.sqrt(d.linknum);
return "M" + d.source.x + "," + d.source.y + "A" + dr + "," + dr + " 0 0,1 " + d.target.x + "," + d.target.y;
})
}
var node_drag = d3.behavior.drag()
.on("dragstart", dragstart)
.on("drag", dragmove)
.on("dragend", dragend);
function dragstart(d, i) {
d3.event.sourceEvent.stopPropagation(); // very important; otherwise, panning will interfare with node dragging
force.stop() // stops the force auto positioning before you start dragging
}
function dragmove(d, i) {
d.px += d3.event.dx;
d.py += d3.event.dy;
d.x += d3.event.dx;
d.y += d3.event.dy;
tick(); // this is the key to make it work together with updating both px,py,x,y on d !
}
function dragend(d, i) {
d.fixed = true; // set the node to fixed so the force doesn't include the node in its auto positioning stuff
tick();
force.resume();
}
function isConnected(a, b) {
return linkedByIndex[a.index + "," + b.index] || linkedByIndex[b.index + "," + a.index] || a.index == b.index;
}
function fadeRelativeToNode(opacity) {
return function(d) {
fnode.style("opacity", function(o) {
var thisOpacity = isConnected(d, o) ? node_opacity_val : opacity;
if (opacity < node_opacity_val && thisOpacity == node_opacity_val) {
d3.select(this).select("text").transition()
.duration(200)
.style("visibility", "visible");
}
else if (opacity < node_opacity_val) {
d3.select(this).select("text").transition()
.duration(200)
.style("visibility", "hidden");
}
return thisOpacity;
});
link.style("stroke-opacity", function(o) {
return o.source.index == d.index || o.target.index == d.index ? link_opacity_val : (opacity < node_opacity_val ? opacity : link_opacity_val);
});
if(opacity == node_opacity_val) {
if (label_on)
attached_text.style("visibility", "visible");
else
attached_text.style("visibility", "hidden");
}
}
}
function fadeRelativeToLink(opacity) {
return function(d) {
if (typeof(fnode) != "undefined")
fnode.style("opacity", function(o) {
var thisOpacity = (o.index==d.source.index || o.index==d.target.index ? node_opacity_val : opacity);
if (opacity < link_opacity_val && thisOpacity == node_opacity_val) {
d3.select(this).select("text").transition()
.duration(200)
.style("visibility", "visible");
}
else if (opacity == link_opacity_val) {
// mouse out
d3.select(this).select("text").transition()
.duration(200)
.style("visibility", label_on ? "visible" : "hidden");
}
return thisOpacity;
});
link.style("stroke-opacity", function(o) {
if (o.source.index == d.source.index && o.target.index == d.target.index)
return link_opacity_val;
else
return opacity;
});
}
}
function get_node_size(weight, msg_cnt) {
return 4+Math.sqrt(weight + msg_cnt)-0.75;
}
function updateData() {
svg.selectAll('g').remove();
force
.nodes(nodeData)
.links(linkData)
.start(); // has to be call here to make weight property on node available
link = svg.selectAll("path.link")
.data(force.links());
link.enter().append("path");
link.exit().remove();
link.attr("class", function(d) { return "link " + d.type; })
.style("stroke-opacity", link_opacity_val)
//.style("stroke-width", function(d) { return 1 + Math.sqrt(d.count); })
.style("stroke-width", 1)
.on("mouseover", fadeRelativeToLink(0.1))
.on("mouseout", fadeRelativeToLink(link_opacity_val))
.on("click", function(d) {
selEdgeSource = d.source;
selEdgeTarget = d.target;
var sel_same_link = false;
if (lastSelEdgeSource == selEdgeSource && lastSelEdgeTarget == selEdgeTarget)
sel_same_link = true;
// clear out previously clicked/hgted other links if any
if(lastSelLink != null) {
lastSelLink.style("stroke", lastSelLinkClr);
lastSelEdgeSource = -1;
lastSelEdgeTarget = -1;
}
// clear out previously clicked/hgted node if any
if(lastSelNode != null) {
lastSelNode.style("stroke", node_stroke_clr);
lastSelNodeName = null;
lastSelNode = null;
}
if(!sel_same_link) {
lastSelLink = d3.select(this);
lastSelLinkClr = lastSelLink.style('stroke')
lastSelLink.transition()
.duration(500)
.style("stroke", "black");
htmltext = "<b>Slack Communication Channels</b>: " + d.channel + "<br>";
if (d.type == 'at') {
htmltext = "<b>Communication Type</b>: @-mention<br>";
htmltext += "<b>Message initiator: </b>: " + d.source.name + "<br>";
htmltext += "<b>User being @-mentioned: </b>: " + d.target.name + "<br>";
htmltext += "<b>Message:</b> " + d.text + "<br>";
}
else {
htmltext = "<b>Communication Type</b>: " + d.type + "<br>";
htmltext += "<b>Message initiator: </b>: " + d.source.name + "<br>";
htmltext += "<b>Message reactor: </b>: " + d.target.name + "<br>";
htmltext += "<b>Parent Message:</b> " + d.text + "<br>";
}
if (d.threaded_text)
htmltext += "<b>Threaded Messages:</b> " + d.threaded_text + "<br>";
if (d.reactions)
htmltext += "<b>Reactions:</b> " + d.reactions + "<br>";
d3.select("#datainfo").html(htmltext);
lastSelEdgeSource = selEdgeSource;
lastSelEdgeTarget = selEdgeTarget;
}
else {// clear out the selection if the selected link is clicked again
d3.select(this).transition()
.duration(500)
.style("stroke", lastSelLinkClr);
lastSelLink = null;
lastSelLinkClr = null;
lastSelEdgeSource = -1;
lastSelEdgeTarget = -1;
d3.select("#datainfo").html("");
}
// clear out previously clicked/hgted other nodes if any
if(lastSelNode != null) {
lastSelNode.style("stroke", node_stroke_clr);
lastSelNode = null;
}
});
/*
var filterLink = false;
for(var index=0; index < commTypeChecked.length; index++)
if (!commTypeChecked[index]) {
filterLink = true;
break;
}
if (filterLink) {
flink = glink.filter(function (d) {
if (commTypeChecked[0]) {// mention is checked
if (d.type == 'at') {
return true;
}
}
else if (commTypeChecked[1]) {// thread is checked
if (d.type == 'thread') {
return true;
}
}
else if (commTypeChecked[2]) {// reaction is checked
if (d.type == 'reaction') {
return true;
}
}
return false;
});
}
else {
flink = glink.filter(function (d) { return true; });
}
*/
var node_drag = d3.behavior.drag()
.on("dragstart", dragstart)
.on("drag", dragmove)
.on("dragend", dragend);
node = svg.selectAll(".node")
.data(force.nodes());
node.exit().remove();
node.enter().append("g")
.attr("class", "node")
.on("click", function(d) {
// clear out previously clicked/hgted link if any
if(lastSelLink != null) {
lastSelLink.style("stroke", "#999");
lastSelLink = null;
lastSelEdgeSource = -1;
lastSelEdgeTarget = -1;
}
var sel_same_node = false;
if (lastSelNodeName == d.name)
sel_same_node = true;
if(lastSelNode != null) {
lastSelNode.transition()
.duration(500)
.style("stroke", node_stroke_clr)
d3.select("#datainfo").html("");
lastSelNode = null;
lastSelNodeName = null;
}
if(!sel_same_node) {
htmltext = "<b>" + d.name +" </b>" + d.email + "<br><br>";
if (d.weight > 0) {
htmltext += "<b>Number of links:</b> " + d.weight + "<br>";
}
if (d.broadcast_msg_count > 0) {
htmltext += "<b>Number of broadcast messages:</b> " + d.broadcast_msg_count + "<br>";
if (d.broadcast_msg_count > 5)
htmltext += "<b>Top 5 broadcast messages:</b> " + d.broadcast_messages + "<br>";
else
htmltext += "<b>Broadcast messages:</b> " + d.broadcast_messages + "<br>";
}
d3.select("#datainfo").html(htmltext);
lastSelNode = d3.select(this).select("circle");
lastSelNodeName = d.name;
lastSelNode.transition()
.duration(500)
.style("stroke", "#000000");
}
})
.call(force.drag)
.on("mouseover", fadeRelativeToNode(0.1))
.on("mouseout", fadeRelativeToNode(node_opacity_val))
.call(node_drag);
fnode = node.filter(function(d) {
if(d.weight > max_weight) {
max_weight = d.weight;
max_weight_node = d;
}
return d.weight > 0;
});
if (max_weight_node != null) {
max_weight_node.px = width/2;
max_weight_node.py = height/2;
max_weight_node.fixed = true;
}
fnode.append("circle")
.attr("r",
function(d) {
return get_node_size(d.weight, d.broadcast_msg_count);
})
.style("fill", function(d) { return teamColors(d.color); })
.style("opacity", node_opacity_val)
.style("stroke", node_stroke_clr);
attached_text = fnode.append("text")
.attr("dx", function(d) { return get_node_size(d.weight, d.broadcast_msg_count) + 2; })
.attr("dy", ".35em")
.text(function(d) { return d.name; })
.style("visibility", label_on ? "visible" : "hidden");
linkedByIndex = {};
link.data().forEach(function(d) {
linkedByIndex[d.source.index + "," + d.target.index] = 1;
});
force.on("tick", tick);
}
function filterGraph(aType, aVisibility) {
link.style("visibility", function (o) {
var lOriVisibility = d3.select(this).style("visibility");
return (o.type == aType) ? aVisibility : lOriVisibility;
});
}
// handle medium checkbox click events
function handleClick_mention(cb) {
if(commTypeChecked[0] == cb.checked) return;
commTypeChecked[0] = cb.checked;
filterGraph("at", cb.checked ? "visible" : "hidden");
}
function handleClick_thread(cb) {
if(commTypeChecked[1] == cb.checked) return;
commTypeChecked[1] = cb.checked;
filterGraph("thread", cb.checked ? "visible" : "hidden");
}
function handleClick_reaction(cb) {
if(commTypeChecked[2] == cb.checked) return;
commTypeChecked[2] = cb.checked;
filterGraph("reaction", cb.checked ? "visible" : "hidden");
}
function ResetView() {
zoom.scale(1);
zoom.translate([0, 0]);
svg.attr("transform", "translate(" + zoom.translate() + ")scale(" + zoom.scale() + ")");
}
function ToggleTextDisplay(cb) {
label_on = cb.checked;
if (cb.checked) {
attached_text.style("visibility", "visible");
}
else {
attached_text.style("visibility", "hidden");
}
}
function load_data(graph_data_filename, cloud_data_filename) {
d3.json(graph_data_filename, function (json) {
nodeData = json.nodes;
linkData = json.links;
// sort linkData so that "linknum" can be computed for each link for arc computation
// for each pair of link connecting to the same source and target nodes
linkData.sort(function (a, b) {
if (a.source > b.source)
return 1;
else if (a.source < b.source)
return -1;
else {
if (a.target > b.target)
return 1;
else if (a.target < b.target)
return -1;
else
return 0;
}
});
// any links with duplicate source and target get an incremented 'linknum' for arc radius computation
if (linkData.length > 0) {
linkData[0].linknum = 1;
for (var i = 1; i < linkData.length; i++) {
if ((linkData[i].source == linkData[i - 1].source && linkData[i].target == linkData[i - 1].target)
|| (linkData[i].target == linkData[i - 1].source && linkData[i].source == linkData[i - 1].target)) {
linkData[i].linknum = linkData[i - 1].linknum + 1;
// console.log("source=" + linkData[i].source + ", target=" + linkData[i].target + ", linknum=" + linkData[i].linknum);
}
else
linkData[i].linknum = 1;
}
}
updateData();
});
load_cloud_data(cloud_data_filename);
}
load_data('inputData.json', 'wordCloud.json');
function handleSliderInput(slider) {
var mapped_idx = Math.ceil(slider.value/unit);
var prefix_str = "Team slack communication data up to ";
var filename = '';
var cloud_filename = '';
if (mapped_idx < hist_data_ts.length-1) {
tooltip_text = prefix_str + hist_data_ts[mapped_idx];
filename = "history_data/inputData-" + hist_data_ts[mapped_idx] + ".json";
cloud_filename = "history_data/wordCloud-" + hist_data_ts[mapped_idx] + ".json";
}
else {
tooltip_text = prefix_str + 'the previous night';
filename = "inputData.json";
cloud_filename = "wordCloud.json";
}
slider.title = tooltip_text;
d3.select("#datainfo").html(tooltip_text);
if (mapped_idx != curr_ts_idx) {
load_data(filename, cloud_filename);
curr_ts_idx = mapped_idx;
}
}