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graph05.html
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graph05.html
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<!DOCTYPE html>
<meta charset="utf-8">
<html>
<title>Graph 05</title>
<style>
.link {
fill: none;
stroke: #bbb;
}
.node circle {
pointer-events: all;
stroke: #000;
stroke-width: 1px;
}
</style>
<body>
<h2>GRAPH 05</h2>
<br>
<script src="./d3.v4.min.js"></script>
<script src="./d3-hypergraph.js"></script>
<script type = "text/javascript">
var dataMarker = { id: 0, name: 'circle', path: 'M 0, 0 m -5, 0 a 5,5 0 1,0 10,0 a 5,5 0 1,0 -10,0', viewbox: '-6 -6 12 12' };
var nodeR = 20, lNodeR = 0.6;
var nodeId = 0;
var width = 1400,
height = 700;
//zoom handler
var zoom = d3.zoom()
.scaleExtent([1/2, 10])
.on("zoom", zoomed);
//drag handler
var drag = d3.drag()
.on("start", dragstarted)
.on("drag", dragged)
.on("end", dragended);
//svg creation
var svg = d3.select("body")
.append("svg:svg")
.attr("width",width)
.attr("height",height)
.call(zoom)
.append("g");
// build the arrow._ added this block
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", "arrows")
.attr("viewBox", "0 -5 10 10")
.attr("refX", 15)
.attr("refY", -1.5)
.attr("markerWidth", 6)
.attr("markerHeight", 6)
.attr("orient", "auto")
.append("svg:path")
.attr("d", "M0,-5L10,0L0,5");
var color = d3.scaleOrdinal(d3.schemeCategory20);
//added this bloc
//defs creation for markers
var defs = svg.append("defs");
//force layout definition
var simulation = d3.forceSimulation()
.force("link", d3.forceLink().id(function(d) { return d.id; }))//.distance(80).strength(1))
.force("charge", d3.forceManyBody().strength(-50).distanceMin(30).distanceMax(200))
.force("center", d3.forceCenter(width / 2, height / 2))
.force("collide",d3.forceCollide(50));
//data reading from json file
//d3.json("data.json", function(error, graph) {
d3.json("graph05data.json", function(error, graph) {
if (error) throw error;
var nodes = graph.nodes,
links = graph.links,
bilinks = [];
//d3.hypergraph invocation passing links and nodes
var data = d3.hypergraph(links,nodes);
//d3.hypergraph links
links = data.links;
//d3.hypergraph nodes
nodes = data.nodes;
//node mapping by id
nodeById = d3.map(nodes, function(d) { return d.id; });
links.forEach(function (link){
var s = link.source = nodeById.get(link.source),
t = link.target = nodeById.get(link.target),
i = {}; // intermediate node
nodes.push(i);
links.push({source: s, target: i}, {source: i, target: t});
bilinks.push([s, i, t]);
});
//links creation
var link = svg.selectAll(".link")
.data(bilinks)
.enter().append("path")
.attr("class", "link")
//.style("stroke", "blue")
//commenting this out for new style, this works for the hyperedge
.style("stroke", function(d){
//"blue"
//if (!d[2].link){
//return "null";
if ((d[0].id=="A")&&(d[2].id=="B"))
return("#0066ff");//blue
if ((d[0].id=="A")&&(d[2].id=="C"))
return("#000000");//black
if ((d[0].id=="A")&&(d[2].id=="L"))
return("#ff8000");//orange
if ((d[0].id=="B")&&(d[2].id=="C"))
return("#00b300");//green
if ((d[0].id=="B")&&(d[2].id=="F"))
return("#00b300");//green
if ((d[0].id=="B")&&(d[2].id=="E"))
return("#660066");//purple
if ((d[0].id=="B")&&(d[2].id=="J"))
return("#ff8000");//orange
if ((d[0].id=="B")&&(d[2].id=="K"))
return("#ff8000");//orange
if ((d[0].id=="C")&&(d[2].id=="B"))
return("#00b300");//green
if ((d[0].id=="C")&&(d[2].id=="D"))
return("#000000");//black
if ((d[0].id=="C")&&(d[2].id=="K"))
return("#ff8000");//orange
if ((d[0].id=="C")&&(d[2].id=="L"))
return("#ff8000");//orange
if ((d[0].id=="D")&&(d[2].id=="K"))
return("#ff8000");//orange
if ((d[0].id=="D")&&(d[2].id=="L"))
return("#ff8000");//orange
if ((d[0].id=="E")&&(d[2].id=="B"))
return("#660066");//purple
if ((d[0].id=="E")&&(d[2].id=="F"))
return("#660066");//purple
if ((d[0].id=="E")&&(d[2].id=="L"))
return("#ff8000");//orange
if ((d[0].id=="F")&&(d[2].id=="B"))
return("#00b300");//green
if ((d[0].id=="F")&&(d[2].id=="E"))
return("#660066");//purple
if ((d[0].id=="F")&&(d[2].id=="L"))
return("#ff8000");//orange
if ((d[0].id=="G")&&(d[2].id=="F"))
return("#ff4dff");//pink
if ((d[0].id=="G")&&(d[2].id=="K"))
return("#ff8000");//orange
if ((d[0].id=="G")&&(d[2].id=="L"))
return("#ff8000");//orange
if ((d[0].id=="I")&&(d[2].id=="L"))
return("#ff8000");//orange
if (d[2].link){
//if (((d[0].id=="C")&&(d[1].id==""))&&(d[2].id=="E"))
return("#ff0000");//red
}
})
//commenting this out for new style
// var link = svg.selectAll(".link")
// .data(links);
.attr("marker-start","url(#circleMarker)")
.attr("marker-mid","url(#textMarker)")
.attr("marker-end",function (d){
if (!d[2].link)
//return "url(#circleMarker)";
return "url(#arrows)";
else
return "null";
})
;
//node creation
var node = svg.selectAll(".node")
.data(nodes.filter(function(d) {
return d.id;
}))
.enter().append("g")
.attr("class", "node");
//for every node -> svg circle creation
node.append("circle")
.attr("class", function(d){
if (d.link){
return "linknode";
}else{
return "node";
}
})
.attr("r", function(d){
if (d.link){
return lNodeR;
}else{
return nodeR;
}
})
.attr("fill", function(d) {
if (d.link){
return "rgb(100,100,100)";
}else{
//return "rgb(255,255,255)";
return color(d.group);
}
});
//id text
node.append("text")
.attr("dx", 22)
.attr("dy", ".35em")
.text(function(d) {
if (!d.link)
//return d.id;
return d.label;
return null;
});
//onmouseover id text
node.append("title")
.text(function(d) {
if (!d.link)
return d.id;
return null;
});
node.call(drag);
//sphere marker
var marker = defs.append("marker")
.attr("id","circleMarker")
.attr("markerHeight", 5)
.attr("markerWidth", 5)
.attr("markerUnits", "strokeWidth")
.attr("orient", "auto")
.attr("refX", 0)
.attr("refY", 0)
.attr("viewBox", "-6 -6 12 12")
.append("path")
.attr("d","M 0, 0 m -5, 0 a 5,5 0 1,0 10,0 a 5,5 0 1,0 -10,0")
.attr("fill","black");
simulation
.nodes(nodes)
.on("tick", ticked)
.force("link")
.links(links);
function ticked() {
link.attr("d", positionLink);
node.attr("transform", positionNode);
}
});
function positionLink(d) {
diffX0 = d[0].x - d[1].x;
diffY0 = d[0].y - d[1].y;
diffX2 = d[2].x - d[1].x;
diffY2 = d[2].y - d[1].y;
pathLength01 = Math.sqrt((diffX0 * diffX0) + (diffY0 * diffY0));
pathLength12 = Math.sqrt((diffX2 * diffX2) + (diffY2 * diffY2));
offsetX0 = (diffX0 * nodeR) / pathLength01;
offsetY0 = (diffY0 * nodeR) / pathLength01;
if(!d[2].link){
offsetX2 = (diffX2 * nodeR) / pathLength12;
offsetY2 = (diffY2 * nodeR) / pathLength12;
}else{
offsetX2 = (diffX2 * lNodeR) / pathLength12;
offsetY2 = (diffY2 * lNodeR) / pathLength12;
}
var x0Pos,y0Pos,x2Pos,y2Pos;
if (d[0].link){
x0Pos = d[0].x;
y0Pos = d[0].y;
}else{
x0Pos = d[0].x - offsetX0;
y0Pos = d[0].y - offsetY0;
}
if (d[2].link){
x2Pos = d[2].x;
y2Pos = d[2].y;
}else{
x2Pos = d[2].x - offsetX2;
y2Pos = d[2].y - offsetY2;
}
return "M" + x0Pos + "," + y0Pos
+ "S" + d[1].x + "," + d[1].y
+ " " + x2Pos + "," + y2Pos;
}
function positionNode(d) {
return "translate(" + d.x + "," + d.y + ")";
}
function dragstarted(d) {
if (!d3.event.active) simulation.alphaTarget(0.3).restart();
d.fx = d.x, d.fy = d.y;
d3.event.sourceEvent.stopPropagation();
}
function dragged(d) {
d.fx = d3.event.x, d.fy = d3.event.y;
}
function dragended(d) {
if (!d3.event.active) simulation.alphaTarget(0);
d.fx = null, d.fy = null;
}
function zoomed() {
svg.attr("transform", d3.event.transform);
}
//function linkColour(d){
// if(d.type == "A"){
// return "green";
// } else {
// return "red";
// }
//}
</script>
</body>
</html>