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Drawing multiple edges between two nodes with d3

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I've been following Mike Bostock's code from this example to learn how to draw directed graphs in d3 and was wondering how I would structure the code so that I could add multiple edges between two nodes in the graph. For example, if the dataset in the example above were defined as var links = [{source: "Microsoft", target: "Amazon", type: "licensing"}, {source: "Microsoft", target: "Amazon", type: "suit"}, {source: "Samsung", target: "Apple", type: "suit"}, {source: "Microsoft", target: "Amazon", type: "resolved"}]; and then run through the code, all I see is one line. All the paths are being

Rounded edges in picturebox C#

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问题 How to round edges in picturebox control. I Want to get angles like ellipse have but i dont know how to do it. I Use C#. Thanks! 回答1: Yes, no problem, you can give a control an arbitrary shape with its Region property. Add a new class to your project and paste the code shown below. Compile. Drop the new control from the top of the toolbox onto your form. using System; using System.Drawing; using System.Drawing.Drawing2D; using System.Windows.Forms; class OvalPictureBox : PictureBox { public

Graph auto-layout algorithm

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问题 To simplify the problem, I have a graph that contains nodes and edges which are on a 2D plane. What I want to be able to do is click a button and it make the automatically layout the graph to look clean. By that I mean minimal crossing of edges, nice space between nodes, maybe even represent the graph scale (weighted edges). I know this is completely subjective of what is a clean looking graph, but does anyone know of an algorithm to start with, rather than reinventing the wheel? Thanks. 回答1: