I am working on a force directed graph in D3. I want to highlight the mouseover'd node, its links, and its child nodes by setting all of the other nodes and links to a lower opacity.  In this example, http://jsfiddle.net/xReHA/, I am able to fa...
I want some of the nodes in my force-directed layout to ignore all forces and stay in fixed positions based on an attribute of the node, while still being able to be dragged and exert repulsion on other nodes and maintain their link lines.   I thou...
I have a force layout that I have created using d3.js  I would like to have both the normal functionality of a draggable force layout as well as the ability to zoom.  I have basically copy/pasted the zooming code from  (http://jsfiddle.net/nrabinow...
First question on Stack Overflow, so bear with me! I am new to d3.js, but have been consistently amazed by what others are able to accomplish with it... and almost as amazed by how little headway I've been able to make with it myself! Clearly I...
I'm using D3 to draw a force-directed graph, which is very similar to this example: http://bl.ocks.org/mbostock/1153292  I'm trying to place the arrowheads in the middle of the links instead of the end.  Playing with the attr("refX",...
I have a (rather simple) question: How to "un-call" force.drag on a selection made by D3.js? Let's say I created a set of elements and called "call" on it, giving it the drag-callback of a force-directed layout. That looked like t...
I am trying to add text label to nodes in d3 Force Directed Graph, there seems to be an issue. This is my Fiddle:    When I add the node name like this:  node.append("text")     .attr("class", "word")     .attr("dy", &...
d3 has a demo of a Force-Directed Graph Layout.  Instead of circles, I want all nodes in the graph to be images.  so, I changed   .append("svg:circle")       .attr("class", "node")       .attr("cx", function(d) { retur...
I have a graph using force layout, but it has a fixed width w and height h:  var svg = d3.select("#viz").append("svg")             .attr("id", "playgraph")             .attr("width", w)             .attr("h...
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 da...

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