npm package discovery and stats viewer.

Discover Tips

  • General search

    [free text search, go nuts!]

  • Package details

    pkg:[package-name]

  • User packages

    @[username]

Sponsor

Optimize Toolset

I’ve always been into building performant and accessible sites, but lately I’ve been taking it extremely seriously. So much so that I’ve been building a tool to help me optimize and monitor the sites that I build to make sure that I’m making an attempt to offer the best experience to those who visit them. If you’re into performant, accessible and SEO friendly sites, you might like it too! You can check it out at Optimize Toolset.

About

Hi, 👋, I’m Ryan Hefner  and I built this site for me, and you! The goal of this site was to provide an easy way for me to check the stats on my npm packages, both for prioritizing issues and updates, and to give me a little kick in the pants to keep up on stuff.

As I was building it, I realized that I was actually using the tool to build the tool, and figured I might as well put this out there and hopefully others will find it to be a fast and useful way to search and browse npm packages as I have.

If you’re interested in other things I’m working on, follow me on Twitter or check out the open source projects I’ve been publishing on GitHub.

I am also working on a Twitter bot for this site to tweet the most popular, newest, random packages from npm. Please follow that account now and it will start sending out packages soon–ish.

Open Software & Tools

This site wouldn’t be possible without the immense generosity and tireless efforts from the people who make contributions to the world and share their work via open source initiatives. Thank you 🙏

© 2024 – Pkg Stats / Ryan Hefner

d3-parallel-links

v1.0.2

Published

Computes multiple parallel links between two nodes in graphs

Downloads

5

Readme

d3-parallel-links

A small plugin for apps that draw static or dynamic (moving) graphs, and specifically for apps that use d3.js, that makes it possible to draw several straight, parallel links between any two nodes in the graph

Installing

If you use NPM, npm install d3-parallel-links. Otherwise, download the latest release.

API Reference

d3.parallelLinksInitLinks(links, LINK_WIDTH = 2)

Calling this method is a necessary init step. The first parameter is the links array of your graph data. The second, optional parameter, informs parallel-links about how your style your link widths in pixels. parallel-links uses it to set the spacing between each two adjacent parallel links.

d3.parallelLinksTransform(linkDatum)

This method does the actual drawing of the parallel links, by computing a css transform that will translate the given link in the appropriate direction and distance. It can be used in the following way, with standard d3 selections:

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; })
.attr('stroke', function (d) { return d.color; })
.attr('transform', d3.parallelLinksTransform)

d3.parallelLinksSetMethodExact(on: boolean)
d3.parallelLinksSetMethodApprox()
d3.parallelLinksIsMethodExact(): boolean

Optional: parallel-link has two alternative mode of computation. In the exact mode (which is the default), it uses trigonometric and inverse trigonometric functions. In the approximate mode, it uses only arithmetic operators. This may yield better performance. You can use the above three methods to switch between modes, and/or get the current mode.

if you are interested in more details on the mathematics, see here