Circle Pack & Force layout on same page?

Circle Pack & Force layout on same page? - javascript

I am very new to d3 and svg, this may sound very naive.
I have one force layout graph and one Circle pack and want to show them both on one page side by side. I went to the "Multiple layouts on same page (multiple force layouts same page)" questions but not able to understand how can I put these layout in div element.
This one is Force layout -
<!DOCTYPE html>
<meta charset="utf-8">
<body>
<style>
h3{
border: 1px solid green ;
}
.link {
stroke: #666;
stroke-opacity: 0.1;
stroke-width: 1.5px;
}
.node circle {
stroke: #fff;
opacity: 0.9;
stroke-width: 1.5px;
}
.node:not(:hover) .nodetext {
display: none;
}
text {
font: 17px serif;
opacity: 0.9;
pointer-events: none;
fill : red;
}
</style>
<script src=http://d3js.org/d3.v3.min.js></script>
<script>
var links= [];
var nodes= [];
var width = 800
height = 400;
var color = d3.scale.category20();
var force = d3.layout.force()
.nodes(d3.values(nodes))
.links(links)
.size([width, height])
.linkStrength(0.1)
.linkDistance(150)
.charge(-150)
.friction(0.6)
.gravity(0.5);
var svg = d3.select("body").append("svg")
.attr("width", width)
.attr("height", height);
d3.json("sample1.json", function(error, data) {
nodes = data.nodes;
links = data.links;
force
.nodes(nodes)
.links(links)
.on("tick", tick)
.start();
var link = svg.selectAll(".link")
.data(links)
.enter().append("line")
.attr("class", "link")
.style("stroke-width", function(d) { return Math.sqrt(1); });
var node = svg.selectAll(".node")
.data(nodes)
.enter().append("g")
.attr("class", "node")
.style("fill", "#7a85ec")
.style("opacity", 0.9)
.on("mouseover", mouseover)
.on("mouseout", mouseout)
.on("click",clickf)
.call(force.drag);
node.append("circle")
.attr("r", function(d) { return Math.sqrt(3*d.weight); })
node.append("svg:text")
.attr("class", "nodetext")
.attr("dx", "1.35em")
.attr("dy", "-1.35em")
.text(function(d) { return d.name });
function tick() {
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 + "," + d.y + ")"; });
}
function mouseover(d) {
var circle = d3.select(this);
node
.transition(500)
.style("opacity", function(o) {
return isConnected(o, d) ? 1.0 : 0.1 ;
})
.style("fill", function(o){
if (isEqual(o, d)){
return "red"
}
else return "#7a85ec"
})
;
link
.transition(500)
.style("stroke-opacity", function(o) {
return o.source === d || o.target === d ? 1 : 0.1;
})
;
}
function mouseout() {
var circle = d3.select(this);
node
.transition(500)
.style("opacity", "1.0")
.style("fill", "#7a85ec")
;
link
.transition(500)
.style("stroke-opacity", "0.1");
}
function clickf(d){
}
var linkedByIndex = {};
links.forEach(function(d) {
linkedByIndex[d.source.index + "," + d.target.index] = true;
});
function isConnected(a, b) {
return isConnectedAsTarget(a, b) || isConnectedAsSource(a, b) || a.index == b.index;
}
function isConnectedAsSource(a, b) {
return linkedByIndex[a.index + "," + b.index];
}
function isConnectedAsTarget(a, b) {
return linkedByIndex[b.index + "," + a.index];
}
function isEqual(a, b) {
return a.index == b.index;
}
});
</script>
</body>
This is my circle pack (sample from mbostock) -
<!DOCTYPE html>
<meta charset="utf-8">
<style>
circle {
fill: rgb(31, 119, 180);
fill-opacity: .25;
stroke: rgb(31, 119, 180);
stroke-width: 1px;
}
.leaf circle {
fill: #ff7f0e;
fill-opacity: 1;
}
text {
font: 10px sans-serif;
}
</style>
<body>
<script src="http://d3js.org/d3.v3.min.js"></script>
<script>
var diameter = 560,
format = d3.format(",d");
var pack = d3.layout.pack()
.size([diameter - 4, diameter - 4])
.value(function(d) { return d.size; });
var svg = d3.select("body").append("svg")
.attr("width", diameter)
.attr("height", diameter)
.append("g")
.attr("transform", "translate(2,2)");
d3.json("flare.json", function(error, root) {
var node = svg.datum(root).selectAll(".node")
.data(pack.nodes)
.enter().append("g")
.attr("class", function(d) { return d.children ? "node" : "leaf node"; })
.attr("transform", function(d) { return "translate(" + d.x + "," + d.y + ")"; });
node.append("title")
.text(function(d) { return d.name + (d.children ? "" : ": " + format(d.size)); });
node.append("circle")
.attr("r", function(d) { return d.r; });
node.filter(function(d) { return !d.children; }).append("text")
.attr("dy", ".3em")
.style("text-anchor", "middle")
.text(function(d) { return d.name.substring(0, d.r / 3); });
});
d3.select(self.frameElement).style("height", diameter + "px");
</script>
Please help me put these in one page using div.

This worked for me with the changes below. Hope this helps.
<!DOCTYPE html>
<meta charset="utf-8">
<style>
#left-div
{
width:560px;
height:560px;
border:1px solid red;
margin:10px;
display:table-cell;
}
#right-div
{
width:560px;
height:560px;
border:1px solid red;
margin:10px;
display:table-cell;
}
circle {
fill: rgb(31, 119, 180);
fill-opacity: .25;
stroke: rgb(31, 119, 180);
stroke-width: 1px;
}
.leaf circle {
fill: #ff7f0e;
fill-opacity: 1;
}
text {
font: 10px sans-serif;
}
</style>
<div id="left-div"></div>
<div id="right-div"></div>
<script src="http://d3js.org/d3.v3.min.js"></script>
<body>
<script>
var diameter = 560,
format = d3.format(",d");
var pack = d3.layout.pack()
.size([diameter - 4, diameter - 4])
.value(function(d) { return d.size; });
var svg = d3.select("#left-div").append("svg")
.attr("width", diameter)
.attr("height", diameter)
.append("g")
.attr("transform", "translate(2,2)");
d3.json("flare.json", function(error, root) {
var node = svg.datum(root).selectAll(".node")
.data(pack.nodes)
.enter().append("g")
.attr("class", function(d) { return d.children ? "node" : "leaf node"; })
.attr("transform", function(d) { return "translate(" + d.x + "," + d.y + ")"; });
node.append("title")
.text(function(d) { return d.name + (d.children ? "" : ": " + format(d.size)); });
node.append("circle")
.attr("r", function(d) { return d.r; });
node.filter(function(d) { return !d.children; }).append("text")
.attr("dy", ".3em")
.style("text-anchor", "middle")
.text(function(d) { return d.name.substring(0, d.r / 3); });
});
d3.select(self.frameElement).style("height", diameter + "px");
</script>
<script>
var links= [];
var nodes= [];
var width = 500
height = 500;
var color = d3.scale.category20();
var force = d3.layout.force()
.nodes(d3.values(nodes))
.links(links)
.size([width, height])
.linkStrength(0.1)
.linkDistance(150)
.charge(-150)
.friction(0.6)
.gravity(0.5);
var svg2 = d3.select("#right-div").append("svg")
.attr("width", width)
.attr("height", height);
d3.json("sample1.json", function(error, data) {
nodes = data.nodes;
links = data.links;
force
.nodes(nodes)
.links(links)
.on("tick", tick)
.start();
var link = svg2.selectAll(".link")
.data(links)
.enter().append("line")
.attr("class", "link")
.style("stroke-width", function(d) { return Math.sqrt(1); });
var node = svg2.selectAll(".node")
.data(nodes)
.enter().append("g")
.attr("class", "node")
.style("fill", "#7a85ec")
.style("opacity", 0.9)
.on("mouseover", mouseover)
.on("mouseout", mouseout)
.on("click",clickf)
.call(force.drag);
node.append("circle")
.attr("r", function(d) { return Math.sqrt(3*d.weight); })
node.append("svg:text")
.attr("class", "nodetext")
.attr("dx", "1.35em")
.attr("dy", "-1.35em")
.text(function(d) { return d.name });
function tick() {
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 + "," + d.y + ")"; });
}
function mouseover(d) {
var circle = d3.select(this);
node
.transition(500)
.style("opacity", function(o) {
return isConnected(o, d) ? 1.0 : 0.1 ;
})
.style("fill", function(o){
if (isEqual(o, d)){
return "red"
}
else return "#7a85ec"
})
;
link
.transition(500)
.style("stroke-opacity", function(o) {
return o.source === d || o.target === d ? 1 : 0.1;
})
;
}
function mouseout() {
var circle = d3.select(this);
node
.transition(500)
.style("opacity", "1.0")
.style("fill", "#7a85ec")
;
link
.transition(500)
.style("stroke-opacity", "0.1");
}
function clickf(d){
}
var linkedByIndex = {};
links.forEach(function(d) {
linkedByIndex[d.source.index + "," + d.target.index] = true;
});
function isConnected(a, b) {
return isConnectedAsTarget(a, b) || isConnectedAsSource(a, b) || a.index == b.index;
}
function isConnectedAsSource(a, b) {
return linkedByIndex[a.index + "," + b.index];
}
function isConnectedAsTarget(a, b) {
return linkedByIndex[b.index + "," + a.index];
}
function isEqual(a, b) {
return a.index == b.index;
}
});
</script>
Note, some of the CSS was left out from one of the graphs. Adjust that as needed. The key to getting the d3 graph to load into a div is by this code below. Notice the # within the string name of the div id.
var svg = d3.select("#left-div").append("svg")
Instead of this code below.
var svg = d3.select("body").append("svg")
The next issue that I ran into was due to a duplicate var named "svg" between both scripts, so I renamed one of them to svg2.

Related

adding external file to d3

i tried to add php output in html for d3.for testing purpose i tried with simple code
index.html
<!DOCTYPE html>
<html>
<head>
<title>including php in javascript</title>
<?
include ('index.php');
?>
</head>
<body>
<script>
var myJSON = <?php echo json_encode($json); ?>;
document.write(myJSON);
</script>
</body>
</html>
another method to add the external file to d3
<!DOCTYPE html>
<html>
<head>
<title>Radial Cluster Demo</title>
<script src="ddd.js"></script>
<style>
.node {
cursor: pointer;
}
.overlay {
background-color:white;
}
.node circle {
fill: #fff;
stroke: steelblue;
stroke-width: 1.5px;
}
.node text {
font: sans-serif;
text-align: center;
}
.link {
fill: none;
}
.parent{
fill :red;
font-weight:bolder
}
div#tooltip {
position: absolute;
font: 15px sans-serif;
background: orange;
border-radius: 8px;
padding-left: 5px;
padding-right: 5px;
pointer-events: none;
}
</style>
</head>
<body>
<div id="tooltip" style="display:none"></div>
<div id="tree-container"class="full"></div>
<script type="text/javascript">
d3.json("http://localhost:8888/new/new.json",function(treeData){
var selectedNode = null;
var draggingNode = null;
var panSpeed = 200;
var panBoundary = 0;
var i = 0;
var duration = 750;
var root;
var width = 5000;
var height = 5000;
var diameter = 750;
var tree = d3.layout.tree().size([360, diameter / 2 - 120])
.separation(function (a, b) {
return (a.parent == b.parent ? 1 : 5) / a.depth;
});
var diagonal = d3.svg.diagonal.radial()
.projection(function (d) {
return [d.y, d.x / 180 * Math.PI];
});
root = treeData;
root.x0 = height / 2;
root.y0 = 0;
function sortTree() {
tree.sort(function (a, b) {
return b.name.toLowerCase() < a.name.toLowerCase() ? 1 : -1;
});
}
sortTree();
var baseSvg = d3.select("#tree-container").append("svg")
.attr("width", width)
.attr("height", height)
.attr("class", "overlay")
.attr("transform", "translate(" + 1000 + "," + 1000 + ")");
function collapse(d) {
if (d.children) {
d._children = d.children;
d._children.forEach(collapse);
d.children = null;
}
update(d);
}
function expand(d) {
if (d._children) {
d.children = d._children;
d.children.forEach(expand);
d._children = null;
}
}
function toggleChildren(d) {
if (d.children) {
d._children = d.children;
d.children = null;
} else if (d._children) {
d.children = d._children;
d._children = null;
}
return d;
}
function click(d) {
if(!d.parent){
return;
}
if (!d.children)
treeData.children.forEach(collapse);
if (d3.event.defaultPrevented) return;
d = toggleChildren(d);
update(d);
}
function update(source) {
var levelWidth = [1];
var childCount = function (level, n) {
if (n.children && n.children.length > 0) {
if (levelWidth.length <= level + 1) levelWidth.push(0);
levelWidth[level + 1] += n.children.length;
n.children.forEach(function (d) {
childCount(level + 1, d);
});
}
};
childCount(0, root);
var nodes = tree.nodes(root);
links = tree.links(nodes);
node = svgGroup.selectAll("g.node")
.data(nodes, function (d) {
return d.id || (d.id = ++i);
});
var nodeEnter = node.enter().append("g")
.attr("class", "node")
.on('click', click)
nodeEnter.append("circle")
.attr("class", "smallcircle")
.style("stroke", function(d) {
return d.color;
})
nodeEnter.append("text")
.text(function (d) {
return d.name;
})
// .style("font", "12px serif")
.style("opacity", 1)
.style("fill-opacity", 0)
.on("mouseover", function (d) {
var r = d3.select(this).node().getBoundingClientRect();
d3.select("div#tooltip")
.style("display", "inline")
.style("top", (r.top-25) + "px")
.style("top", 10 + "px")
.style("left", (d3.event.pageX) + "px")
.style("top", (d3.event.pageY - 40) + "px")
.style("left", r.left + 40+"px")
.style("left", + "px")
.style("position", "absolute")
.text(d.t);
})
.on("mouseout", function(){
d3.select("div#tooltip").style("display", "none")
})
node.select("circle.nodeCircle")
.attr("r", 4.5)
.style("fill", function (d) {
return d._children ? "red" : "#fff";
});
// });
var nodeUpdate = node.transition()
.duration(duration)
.attr("transform", function (d) {
return "rotate(" + (d.x - 90) + ")translate
(" + d.y + ")rotate(" + (-d.x + 90) + ")";
});
nodeUpdate.select("circle")
.attr("r", 4.5)
.style("fill", function (d) {
return d._children ? "lightsteelblue" : "#fff";
});
nodeUpdate.select("text")
// .style("font-size", "13px")
.style("fill-opacity", 2)
.attr("fill",function(d){return (d.children?"red":"black");})
.attr("dy", ".35em")
.attr("text-anchor", function (d) {
return d.x < 180 ? "start" : "end";
})
.attr("transform", function (d) {
return d.x < 180 ? "translate(8)" : "rotate(360)translate(-8)";
});
var nodeExit = node.exit().transition()
.duration(duration)
.attr("transform", function (d) {
return "translate(" + source.x + "," + source.y + ")";
})
.remove();
nodeExit.select("circle")
.attr("r", 0);
nodeExit.select("text")
.style("fill-opacity", 0);
var link = svgGroup.selectAll("path.link")
.data(links, function (d) {
return d.target.id;
})
link.style("stroke", function(d) {
return d.color;
})
link.enter().insert("path", "g")
.attr("class", "link")
link.style("stroke", function(d) {
return d.target.color;
})
.attr("d", function (d) {
var o = {
x: source.x0,
y: source.y0
};
return diagonal({
source: o,
target: o
});
});
link.transition()
.duration(duration)
.attr("d", diagonal);
link.exit().transition()
.duration(duration)
.attr("d", function (d) {
var o = {
x: source.x,
y: source.y
};
return diagonal({
source: o,
target: o
});
})
.remove();
nodes.forEach(function (d) {
d.x0 = d.x;
d.y0 = d.y;
});
}
var svgGroup = baseSvg.append("g")
.attr("transform", "translate(" + 550 + "," + 300 + ")")
d3.selectAll("text").style("fill", function (d)
{ return d3.select(this).classed(d.cond, true); })
root.children.forEach(function (child) {
collapse(child);
});
update(root);
d3.select(self.frameElement).style("height", width);
});
</script>
</body>
</html>
in this method i am getting
Uncaught TypeError: Cannot read property 'forEach' of undefined
where it is wrong?
index.php output
[
{
"id":"1",
"name":"parent",
"parent":"0",
"children":[
{
"id":"2",
"name":"c1",
"parent":"1",
"children":[
{
"id":"3",
"name":"c11",
"parent":"2",
"children":[
]
},
{
"id":"4",
"name":"c12",
"parent":"2",
"children":[
]
}
]
},
{
"id":"5",
"name":"c2",
"parent":"1",
"children":[
{
"id":"6",
"name":"c21",
"parent":"5",
"children":[
]
},
{
"id":"7",
"name":"c22",
"parent":"5",
"children":[
]
}
]
},
{
"id":"8",
"name":"c3",
"parent":"1",
"children":[
]
}
]
}
]

Try addding
header('Content-Type: application/json');
before
$json= json_encode($nestedArray);
echo $json;
To specify that you are returning a json format data

D3.js how do I arrange nodes of a force layout to be on a circle

I have developed a force layout to represent relationships between social groups. Now I would like to get the nodes to be distributed in a circle with links joining them. What is the best way to do this?
The complete version of the code (without data) is here http://jsfiddle.net/PatriciaW/zZSJT/
(Why do I have to include code here too? Here is the main portion)
d3.json("/relationships?nocache=" + (new Date()).getTime(),function(error,members){
var links=members.organizations.map(function(members) {
return members.member;
});
var nodes = {};
links.forEach(function(link) {
link.source = nodes[link.xsource] || (nodes[link.xsource] = {source: link.xsource, name: link.xsource, category: link.categorysource, path: link.pathsource, desc: link.descsource, title: link.titlesource});
link.target = nodes[link.xtarget] || (nodes[link.xtarget] = {target: link.xtarget, name: link.xtarget, category: link.categorytarget, path: link.pathtarget, desc: link.desctarget, title: link.titletarget});
});
force = d3.layout.force()
.nodes(d3.values(nodes))
.links(links)
.size([width, height])
.charge(-120)
.linkDistance(function() {return (Math.random() * 200) + 100;})
.linkStrength(0.5)
.on("tick", tick)
.start();
var link = svg.selectAll(".link")
.data(force.links())
.enter().append("line")
.attr("class", "link");
var node_drag = d3.behavior.drag()
.on("dragstart", dragstart)
.on("drag", dragmove)
.on("dragend", dragend);
var loading = svg.append("text")
.attr("x", width / 2)
.attr("y", height / 2)
.attr("dy", ".35em")
.style("text-anchor", "middle")
.text("Simulating. One moment please…");
function dragstart(d, i) {
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; // of course set the node to fixed so the force doesn't include the node in its auto positioning stuff
tick();
force.resume();
};
var node = svg.selectAll(".node")
.data(force.nodes())
.enter().append("g")
.attr("class", "node")
.on("mouseover", mouseover)
.on("mouseout", mouseout)
.on("click", clickAlert)
.call(node_drag);
node.append("circle")
.attr("r", 8)
.style("fill", function(d) {
return categoryColour [d.category];
})
// add an image marker
node.append("image")
.attr("x",-8)
.attr("y",-8)
.attr("width", 16)
.attr("height", 16)
.attr("xlink:href", function(d) {
return categoryImage [d.category]
})
.on("click", clickAlert)
.style("cursor", "pointer")
node.append("text")
.attr("x", 12)
.attr("dy", ".35em")
.text(function(d) {
return d.name;
});
// Use a timeout to allow the rest of the page to load first.
setTimeout(function() {
// Run the layout a fixed number of times.
// The ideal number of times scales with graph complexity.
force.start();
for (var i = n * n; i > 0; --i) force.tick();
force.stop();
svg.selectAll("line")
.data(links)
.enter().append("line")
.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; });
svg.selectAll("circle")
.data(nodes)
.enter().append("circle")
.attr("cx", function(d) { return d.x; })
.attr("cy", function(d) { return d.y; })
.attr("r", 4.5);
loading.remove();
}, 10);
function tick() {
link
.attr("x1", function(d) {
return d.source.x + xadj; })
.attr("y1", function(d) {
return d.source.y + yadj; })
.attr("x2", function(d) {
return d.target.x +xadj; })
.attr("y2", function(d) {
return d.target.y +yadj; });
node
.attr("transform", function(d) {
return "translate(" + (d.x + xadj) + "," + (d.y + yadj) + ")";
});
};
function mouseover() {
d3.select(this).select("circle").transition()
.duration(750)
.attr("r", 16);
d3.select(this).select("text")
.attr("font-size","34px")
.style("font-weight", "bold");
};
function mouseout() {
d3.select(this).select("circle").transition()
.duration(750)
.attr("r", 8);
d3.select(this).select("text")
.attr("font-size","12px")
.style("font-weight", "normal");
};
}) // end json

Here's someone else's solution:
This network graph uses the D3 force layout to draw nodes and links, but instead of using d3.force() to find the best node positions, we draw an invisible arc and evenly places nodes along the circumference.
<!DOCTYPE html>
<html>
<head>
<script src="http://d3js.org/d3.v3.min.js"></script>
<meta charset="utf-8">
<title>JS Bin</title>
<style>
line.node-link, path.node-link {
fill: none;
stroke: black
}
circle.node {
fill: white;
stroke: black
}
circle.node+text {
text-anchor: middle;
}
text {
font-family: sans-serif;
pointer-events: none;
}
</style>
</head>
<body>
<script type="text/javascript">
// number of random nodes (gets crowded at >25 unless you change node diameter)
var num = 20;
// returns random int between 0 and num
function getRandomInt() {return Math.floor(Math.random() * (num));}
// nodes returns a [list] of {id: 1, fixed:true}
var nodes = d3.range(num).map(function(d) { return {id: d}; });
// links returns a [list] of {source: 0, target: 1} (values refer to indicies of nodes)
var links = d3.range(num).map(function(d) { return {source: getRandomInt(), target: getRandomInt()}; });
var width = 500,
height = 500;
var force = d3.layout.force()
.nodes(nodes)
.links(links)
.size([width, height]);
// evenly spaces nodes along arc
var circleCoord = function(node, index, num_nodes){
var circumference = circle.node().getTotalLength();
var pointAtLength = function(l){return circle.node().getPointAtLength(l)};
var sectionLength = (circumference)/num_nodes;
var position = sectionLength*index+sectionLength/2;
return pointAtLength(circumference-position)
}
// fades out lines that aren't connected to node d
var is_connected = function(d, opacity) {
lines.transition().style("stroke-opacity", function(o) {
return o.source === d || o.target === d ? 1 : opacity;
});
}
var svg = d3.select("body").append("svg")
.attr("width", width)
.attr("height", height);
// invisible circle for placing nodes
// it's actually two arcs so we can use the getPointAtLength() and getTotalLength() methods
var dim = width-80
var circle = svg.append("path")
.attr("d", "M 40, "+(dim/2+40)+" a "+dim/2+","+dim/2+" 0 1,0 "+dim+",0 a "+dim/2+","+dim/2+" 0 1,0 "+dim*-1+",0")
.style("fill", "#f5f5f5");
force.start();
// set coordinates for container nodes
nodes.forEach(function(n, i) {
var coord = circleCoord(n, i, nodes.length)
n.x = coord.x
n.y = coord.y
});
// use this one for straight line links...
// var lines = svg.selectAll("line.node-link")
// .data(links).enter().append("line")
// .attr("class", "node-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; });
// ...or use this one for curved line links
var lines = svg.selectAll("path.node-link")
.data(links).enter().append("path")
.attr("class", "node-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);
return "M" +
d.source.x + "," +
d.source.y + "A" +
dr + "," + dr + " 0 0,1 " +
d.target.x + "," +
d.target.y;
});
var gnodes = svg.selectAll('g.gnode')
.data(nodes).enter().append('g')
.attr("transform", function(d) {
return "translate("+d.x+","+d.y+")"
})
.classed('gnode', true);
var node = gnodes.append("circle")
.attr("r", 25)
.attr("class", "node")
.on("mouseenter", function(d) {
is_connected(d, 0.1)
node.transition().duration(100).attr("r", 25)
d3.select(this).transition().duration(100).attr("r", 30)
})
.on("mouseleave", function(d) {
node.transition().duration(100).attr("r", 25);
is_connected(d, 1);
});
var labels = gnodes.append("text")
.attr("dy", 4)
.text(function(d){return d.id})
</script>
</body>
</html>

How to get values of selected nodes in the console in D3

I have an application where i need to make a mesh using D3.and i also need to get their values .So my application have the ability of selection using mouse drag and now i need its values in the console. here it is...
<!DOCTYPE html>
<meta charset="utf-8">
<style>
.node {
stroke: #fff;
stroke-width: 1.5px;
}
.node .selected {
stroke: red;
}
.link {
stroke: #999;
}
.brush .extent {
fill-opacity: .1;
stroke: #fff;
shape-rendering: crispEdges;
}
</style>
<body>
<script src="http://d3js.org/d3.v3.min.js"></script>
<script>
var width = 960,
height = 500,
shiftKey;
var svg = d3.select("body")
.attr("tabindex", 1)
.on("keydown.brush", keyflip)
.on("keyup.brush", keyflip)
.each(function() { this.focus(); })
.append("svg")
.attr("width", width)
.attr("height", height);
d3.json("graph.json", function(error, graph) {
graph.links.forEach(function(d) {
d.source = graph.nodes[d.source];
d.target = graph.nodes[d.target];
});
var link = svg.append("g")
.attr("class", "link")
.selectAll("line")
.data(graph.links)
.enter().append("line")
.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; });
var brush = svg.append("g")
.datum(function() { return {selected: false, previouslySelected: false}; })
.attr("class", "brush")
.call(d3.svg.brush()
.x(d3.scale.identity().domain([0, width]))
.y(d3.scale.identity().domain([0, height]))
.on("brushstart", function(d) {
node.each(function(d) { d.previouslySelected = shiftKey && d.selected; });
})
.on("brush", function() {
var extent = d3.event.target.extent();
node.classed("selected", function(d) {
return d.selected = d.previouslySelected ^
(extent[0][0] <= d.x && d.x < extent[1][0]
&& extent[0][1] <= d.y && d.y < extent[1][1]);
});
})
.on("brushend", function() {
d3.event.target.clear();
d3.select(this).call(d3.event.target);
}));
var node = svg.append("g")
.attr("class", "node")
.selectAll("circle")
.data(graph.nodes)
.enter().append("circle")
.attr("r", 4)
.attr("cx", function(d) { return d.x; })
.attr("cy", function(d) { return d.y; })
.on("mousedown", function(d) {
if (shiftKey) d3.select(this).classed("selected", d.selected = !d.selected);
else node.classed("selected", function(p) { return p.selected = d === p; });
});
});
function keyflip() {
shiftKey = d3.event.shiftKey || d3.event.metaKey;
}
</script>
And here is the json
{"nodes":[{"x":444,"y":275},{"x":378,"y":324},{"x":478,"y":278},{"x":471,"y":256},{"x":382,"y":269},{"x":371,"y":247},{"x":359,"y":276},{"x":364,"y":302},{"x":400,"y":330},{"x":388,"y":298},{"x":524,"y":296},{"x":570,"y":243},{"x":552,"y":159},{"x":502,"y":287},{"x":511,"y":313},{"x":513,"y":265},{"x":602,"y":132},{"x":610,"y":90},{"x":592,"y":91},{"x":575,"y":89},{"x":607,"y":73},{"x":591,"y":68},{"x":574,"y":73},{"x":589,"y":149},{"x":620,"y":205},{"x":621,"y":230},{"x":589,"y":234},{"x":602,"y":223},{"x":548,"y":188},{"x":532,"y":196},{"x":548,"y":114},{"x":575,"y":174},{"x":497,"y":250},{"x":576,"y":196},{"x":504,"y":201},{"x":494,"y":186},{"x":482,"y":199},{"x":505,"y":219},{"x":486,"y":216},{"x":590,"y":306},{"x":677,"y":169},{"x":657,"y":258},{"x":667,"y":205},{"x":552,"y":227},{"x":518,"y":173},{"x":473,"y":125},{"x":796,"y":260},{"x":731,"y":272},{"x":642,"y":288},{"x":576,"y":269},{"x":605,"y":187},{"x":559,"y":289},{"x":544,"y":356},{"x":505,"y":365},{"x":579,"y":289},{"x":619,"y":282},{"x":574,"y":329},{"x":664,"y":306},{"x":627,"y":304},{"x":643,"y":327},{"x":664,"y":348},{"x":665,"y":327},{"x":653,"y":317},{"x":650,"y":338},{"x":622,"y":321},{"x":633,"y":338},{"x":647,"y":357},{"x":718,"y":362},{"x":636,"y":240},{"x":640,"y":227},{"x":617,"y":249},{"x":631,"y":254},{"x":566,"y":213},{"x":713,"y":322},{"x":716,"y":298},{"x":666,"y":241},{"x":627,"y":355}],"links":[{"source":1,"target":0},{"source":2,"target":0},{"source":3,"target":0},{"source":3,"target":2},{"source":4,"target":0},{"source":5,"target":0},{"source":6,"target":0},{"source":7,"target":0},{"source":8,"target":0},{"source":9,"target":0},{"source":11,"target":10},{"source":11,"target":3},{"source":11,"target":2},{"source":11,"target":0},{"source":12,"target":11},{"source":13,"target":11},{"source":14,"target":11},{"source":15,"target":11},{"source":17,"target":16},{"source":18,"target":16},{"source":18,"target":17},{"source":19,"target":16},{"source":19,"target":17},{"source":19,"target":18},{"source":20,"target":16},{"source":20,"target":17},{"source":20,"target":18},{"source":20,"target":19},{"source":21,"target":16},{"source":21,"target":17},{"source":21,"target":18},{"source":21,"target":19},{"source":21,"target":20},{"source":22,"target":16},{"source":22,"target":17},{"source":22,"target":18},{"source":22,"target":19},{"source":22,"target":20},{"source":22,"target":21},{"source":23,"target":16},{"source":23,"target":17},{"source":23,"target":18},{"source":23,"target":19},{"source":23,"target":20},{"source":23,"target":21},{"source":23,"target":22},{"source":23,"target":12},{"source":23,"target":11},{"source":24,"target":23},{"source":24,"target":11},{"source":25,"target":24},{"source":25,"target":23},{"source":25,"target":11},{"source":26,"target":24},{"source":26,"target":11},{"source":26,"target":16},{"source":26,"target":25},{"source":27,"target":11},{"source":27,"target":23},{"source":27,"target":25},{"source":27,"target":24},{"source":27,"target":26},{"source":28,"target":11},{"source":28,"target":27},{"source":29,"target":23},{"source":29,"target":27},{"source":29,"target":11},{"source":30,"target":23},{"source":31,"target":30},{"source":31,"target":11},{"source":31,"target":23},{"source":31,"target":27},{"source":32,"target":11},{"source":33,"target":11},{"source":33,"target":27},{"source":34,"target":11},{"source":34,"target":29},{"source":35,"target":11},{"source":35,"target":34},{"source":35,"target":29},{"source":36,"target":34},{"source":36,"target":35},{"source":36,"target":11},{"source":36,"target":29},{"source":37,"target":34},{"source":37,"target":35},{"source":37,"target":36},{"source":37,"target":11},{"source":37,"target":29},{"source":38,"target":34},{"source":38,"target":35},{"source":38,"target":36},{"source":38,"target":37},{"source":38,"target":11},{"source":38,"target":29},{"source":39,"target":25},{"source":40,"target":25},{"source":41,"target":24},{"source":41,"target":25},{"source":42,"target":41},{"source":42,"target":25},{"source":42,"target":24},{"source":43,"target":11},{"source":43,"target":26},{"source":43,"target":27},{"source":44,"target":28},{"source":44,"target":11},{"source":45,"target":28},{"source":47,"target":46},{"source":48,"target":47},{"source":48,"target":25},{"source":48,"target":27},{"source":48,"target":11},{"source":49,"target":26},{"source":49,"target":11},{"source":50,"target":49},{"source":50,"target":24},{"source":51,"target":49},{"source":51,"target":26},{"source":51,"target":11},{"source":52,"target":51},{"source":52,"target":39},{"source":53,"target":51},{"source":54,"target":51},{"source":54,"target":49},{"source":54,"target":26},{"source":55,"target":51},{"source":55,"target":49},{"source":55,"target":39},{"source":55,"target":54},{"source":55,"target":26},{"source":55,"target":11},{"source":55,"target":16},{"source":55,"target":25},{"source":55,"target":41},{"source":55,"target":48},{"source":56,"target":49},{"source":56,"target":55},{"source":57,"target":55},{"source":57,"target":41},{"source":57,"target":48},{"source":58,"target":55},{"source":58,"target":48},{"source":58,"target":27},{"source":58,"target":57},{"source":58,"target":11},{"source":59,"target":58},{"source":59,"target":55},{"source":59,"target":48},{"source":59,"target":57},{"source":60,"target":48},{"source":60,"target":58},{"source":60,"target":59},{"source":61,"target":48},{"source":61,"target":58},{"source":61,"target":60},{"source":61,"target":59},{"source":61,"target":57},{"source":61,"target":55},{"source":62,"target":55},{"source":62,"target":58},{"source":62,"target":59},{"source":62,"target":48},{"source":62,"target":57},{"source":62,"target":41},{"source":62,"target":61},{"source":62,"target":60},{"source":63,"target":59},{"source":63,"target":48},{"source":63,"target":62},{"source":63,"target":57},{"source":63,"target":58},{"source":63,"target":61},{"source":63,"target":60},{"source":63,"target":55},{"source":64,"target":55},{"source":64,"target":62},{"source":64,"target":48},{"source":64,"target":63},{"source":64,"target":58},{"source":64,"target":61},{"source":64,"target":60},{"source":64,"target":59},{"source":64,"target":57},{"source":64,"target":11},{"source":65,"target":63},{"source":65,"target":64},{"source":65,"target":48},{"source":65,"target":62},{"source":65,"target":58},{"source":65,"target":61},{"source":65,"target":60},{"source":65,"target":59},{"source":65,"target":57},{"source":65,"target":55},{"source":66,"target":64},{"source":66,"target":58},{"source":66,"target":59},{"source":66,"target":62},{"source":66,"target":65},{"source":66,"target":48},{"source":66,"target":63},{"source":66,"target":61},{"source":66,"target":60},{"source":67,"target":57},{"source":68,"target":25},{"source":68,"target":11},{"source":68,"target":24},{"source":68,"target":27},{"source":68,"target":48},{"source":68,"target":41},{"source":69,"target":25},{"source":69,"target":68},{"source":69,"target":11},{"source":69,"target":24},{"source":69,"target":27},{"source":69,"target":48},{"source":69,"target":41},{"source":70,"target":25},{"source":70,"target":69},{"source":70,"target":68},{"source":70,"target":11},{"source":70,"target":24},{"source":70,"target":27},{"source":70,"target":41},{"source":70,"target":58},{"source":71,"target":27},{"source":71,"target":69},{"source":71,"target":68},{"source":71,"target":70},{"source":71,"target":11},{"source":71,"target":48},{"source":71,"target":41},{"source":71,"target":25},{"source":72,"target":26},{"source":72,"target":27},{"source":72,"target":11},{"source":73,"target":48},{"source":74,"target":48},{"source":74,"target":73},{"source":75,"target":69},{"source":75,"target":68},{"source":75,"target":25},{"source":75,"target":48},{"source":75,"target":41},{"source":75,"target":70},{"source":75,"target":71},{"source":76,"target":64},{"source":76,"target":65},{"source":76,"target":66},{"source":76,"target":63},{"source":76,"target":62},{"source":76,"target":48},{"source":76,"target":58}]}
i need that i will select the nodes using mouse drag as the application is working and the values will come to the console

d3.js move node and label together

In our project I want to add cicrles dynamically when the add node button is clicked and link these circles with an arrow. But When I linked the circles labels of the circles do not move together with circles. The code is below.
JS Fiddle Link: http://jsfiddle.net/pinargocebe/kEhes/3/
How can I solve this problem?
Thanks in advance..
<!DOCTYPE composition PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<ui:composition xmlns="http://www.w3.org/1999/xhtml"
xmlns:s="http://jboss.com/products/seam/taglib"
xmlns:ui="http://java.sun.com/jsf/facelets"
xmlns:f="http://java.sun.com/jsf/core"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:a4j="http://richfaces.org/a4j"
xmlns:rich="http://richfaces.org/rich" template="layout/template.xhtml">
<ui:define name="body">
<a4j:commandButton value="Add Node" onclick="mousedown();">
</a4j:commandButton>
<div id="activationGraphDiv" style="width: 960px; height: 500px">
</div>
<rich:popupPanel id="addnode" width="100" height="100">
<h:form>
<h:outputLabel value="http://add.mode.deneme#relation" />
<a4j:commandButton value="OK"
onclick="#{rich:component('addnode')}.hide()">
</a4j:commandButton>
</h:form>
</rich:popupPanel>
<style type="text/css">
rect {
fill: none;
pointer-events: all;
}
.node {
fill: white;
stroke: pink;
stroke-width: 2;
color: black;
}
.cursor {
fill: none;
pointer-events: none;
}
.link {
stroke: #999;
}
path,line {
stroke: silver;
stroke-width: 2;
fill: none;
}
</style>
<script src="jquery.pack.js"></script>
<script type="text/javascript">
var width = 960,
height = 500;
var sourceNode,targetNode;
var fill = d3.scale.category20();
var force = d3.layout.force()
.size([width, height])
.gravity(.05)
.charge(-450)
.linkDistance(200)
.on("tick", tick);
var svg = d3.select("#activationGraphDiv").append("svg")
.attr("width", width)
.attr("height", height)
.on("mousemove", mousemove);
svg.append("rect")
.attr("width", width)
.attr("height", height);
// Draw Lines
var container = $('#activationGraphDiv');
var line = d3.svg.line()
.x(function(d) { return d[0]; })
.y(function(d) { return d[1]; })
.interpolate('linear');
svg
.append('svg:path')
.style('stroke-width', 1)
.style('stroke', 'silver')
.style('fill', 'rgba(120, 220, 54, 0.2)');
var lineData = [];
var redrawLine = function() {
var svgLines = svg.selectAll('path.my-lines')
.data(lineData)
.remove();
svgLines.enter()
.append('path')
.attr('d', line(lineData))
.attr('class', 'my-lines');
svgLines.exit()
.remove();
};
var mouseIsDown = false;
container.on('mousemove', function(e) {
if (mouseIsDown && sourceNode!=null) {
lineData[1] = [e.offsetX, e.offsetY];
redrawLine();
}})
.on('mouseup',function(){
sourceNode=null;
targetNode=null;
mouseIsDown=false;
svg.selectAll('path.my-lines')
.data(lineData)
.remove();
});
var nodes = force.nodes(),
links = force.links(),
node=svg.selectAll(".node"),
link = svg.selectAll(".link"),
text=svg.selectAll(".nodetext");
var cursor = svg.append("circle")
.attr("r", 0)
.attr("class", "cursor");
restart();
function mousemove() {
cursor.attr("transform", "translate(" + d3.mouse(this) + ")");
}
var i=0;
function mousedown() {
//x coordinate of node..
var x=document.getElementById("activationGraphDiv").offsetLeft;
//y coordinate of node..
var y=document.getElementById("activationGraphDiv").offsetTop;
var node = {x:x, y: y, name: i},
n = nodes.push(node);
i++;
console.log("node name: "+node.name);
restart();
sourceNode=null
targetNode=null;
mouseIsDown=false;
}
function tick() {
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("cx", function(d) { return d.x; })
.attr("cy", function(d) { return d.y; });
text.attr("x", function(d) {return d.x; })
.attr("y", function(d) { return d.y; });
}
svg.append("svg:defs").selectAll("marker")
.data(["arrow"])
.enter().append("svg:marker")
.attr("id", String)
.attr("viewBox", "0 -5 10 10")
.attr("refX", 10)
.attr("refY", 0)
.attr("markerWidth", 10)
.attr("markerHeight", 10)
.attr("orient", "auto")
.append("svg:path")
.attr("d", "M0,-5L10,0L0,5");
function restart() {
node = node.data(nodes);
node.enter().insert("circle")
.attr("class", "node")
.attr("id",function(d){return d.name;})
.attr("r", 15);
//Insert text to node..
text=svg.selectAll(".nodetext")
.data(nodes)
.enter()
.append("text")
.attr("class","nodetext")
.text(function(d){return d.name;})
.attr("dx", 13)
.attr("dy", ".35em");
d3.selectAll(".node").on("mousedown",function(d){
if(sourceNode==null){
mouseIsDown = true;
lineData[0] = [d3.mouse(this)[0], d3.mouse(this)[1]];
redrawLine();
sourceNode=d.index;
console.log("Source node: "+d.name);
}
})
.on("mouseup",function(d){
if(targetNode==null && sourceNode!=null && mouseIsDown){
targetNode=d.index;
links.push({source: sourceNode, target: targetNode});
lineData[1] = [d3.mouse(this)[0], d3.mouse(this)[1]];
redrawLine();
console.log("Target node: "+d.name);
sourceNode=null;
targetNode=null;
mouseIsDown = false;
svg.selectAll('path.my-lines')
.data(lineData)
.remove();
restart();
}
});
link = link.data(links);
link.enter().insert("line")
.attr("class", "link");
link.attr("marker-end", "url(#arrow)");
force.start();
}
</script>
</ui:define>
</ui:composition>

The canonical solution is to put the text and circles into a group. Instead of force.tick() moving both the text and nodes individually, you simply transform the group.
So this:
node.attr("cx", function (d) {
return d.x;
})
.attr("cy", function (d) {
return d.y;
});
text.attr("x", function (d) {
return d.x;
})
.attr("y", function (d) {
return d.y;
});
Becomes this:
node.attr("transform", function(d) { return "translate(" + d.x + "," + d.y + ")"; });
Check out the example here:
http://bl.ocks.org/mbostock/950642

Node drag not working on iPad

I would like to drag node and drag canvas (svg element)
On a desktop browser, it works fine, but on an iPad it only drags the canvas; node dragging is not working. Where did I go wrong?
My source code:
<!DOCTYPE html>
<meta charset="utf-8">
<style>
.node {
stroke: #fff;
stroke-width: 1.5px;
}
.link {
stroke: #999;
}
</style>
<body>
<script src="d3.js"></script>
<script>
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