d3-force | Force-directed graph layout using velocity Verlet

by d3 JavaScript Version: 3.0.0 License: ISC

X-Ray Key Features Code Snippets Community Discussions(10)Vulnerabilities Install Support

kandi X-RAY | d3-force Summary

d3-force is a JavaScript library typically used in Simulation applications. d3-force has no bugs, it has no vulnerabilities, it has a Permissive License and it has medium support. You can install using 'npm i d3f' or download it from GitHub, npm.

This module implements a velocity Verlet numerical integrator for simulating physical forces on particles. The simulation is simplified: it assumes a constant unit time step Δt = 1 for each step, and a constant unit mass m = 1 for all particles. As a result, a force F acting on a particle is equivalent to a constant acceleration a over the time interval Δt, and can be simulated simply by adding to the particle’s velocity, which is then added to the particle’s position.

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Security

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Support

d3-force has a medium active ecosystem.

It has 1594 star(s) with 360 fork(s). There are 41 watchers for this library.

It had no major release in the last 12 months.

There are 13 open issues and 140 have been closed. On average issues are closed in 284 days. There are 7 open pull requests and 0 closed requests.

It has a neutral sentiment in the developer community.

The latest version of d3-force is 3.0.0

Quality

d3-force has 0 bugs and 0 code smells.

Security

d3-force has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

d3-force code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

d3-force is licensed under the ISC License. This license is Permissive.

Permissive licenses have the least restrictions, and you can use them in most projects.

Reuse

d3-force releases are available to install and integrate.

Deployable package is available in npm.

Installation instructions are not available. Examples and code snippets are available.

Top functions reviewed by kandi - BETA

kandi has reviewed d3-force and discovered the below as its top functions. This is intended to give you an instant insight into d3-force implemented functionality, and help decide if they suit your requirements.

for each node
Apply a quad
Calculates the strength of the quadrant .
Initialize the weight
the main loop
Initializes the nodes
Step to simulate interval
Prepare the quad
Initialize the distances .
Calculate strength strength weight

Get all kandi verified functions for this library.

d3-force Key Features

No Key Features are available at this moment for d3-force.

d3-force Examples and Code Snippets

No Code Snippets are available at this moment for d3-force.

Community Discussions

Trending Discussions on d3-force

Computing array of relationships from tags

D3.js various link distance

How to use d3.line().curve when using x1, y1, and x2, y2?

interpreting the d3 centering force

What environment do I need to run a vasturiano 3D-Force Graph?

MapBox: Legend not working when full screen

Apply zoom to tooltip in D3 tree

How to update d3-force elements?

d3Force's d3.forceLink error: node not found:

How to change angle of nodes and links in d3-force?

QUESTION

Computing array of relationships from tags

Asked 2022-Mar-10 at 11:14

I'm working on a d3-force visualisation, which requires data in a specific shape. I've got an array of objects, each with an array of tags.

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ANSWER

Answered 2022-Mar-10 at 11:14

You can use hash grouping approach. First make an object where keys are hashes of the links, and then use only the values as the result.

Source https://stackoverflow.com/questions/71412057

QUESTION

D3.js various link distance

Asked 2021-Oct-25 at 10:29

I am in need to implement a various link distance. I added a function call during the initialization of the force / simulation. Still, it looks like the settings are ignored. I want to add another node very close, that barely a hair would fit between. Is this even possible?

I noticed a similar question on stackoverflow but this requires another plugin, furthermore this question was created 4 years ago. Maybe vanilla d3.js already added the feature.

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ANSWER

Answered 2021-Oct-25 at 10:29

The distance function is correctly set and specified.

Problem comes from the forceCollide, which is set to a radius of 90, and pushes the nodes apart regardless of specified distance.

Decreasing the radius of forceCollide fixes the problem, as illustrated below :)

Source https://stackoverflow.com/questions/69705919

QUESTION

How to use d3.line().curve when using x1, y1, and x2, y2?

Asked 2021-Aug-06 at 00:13

I'm new to d3 and want to connect nodes using elbows. Searching online I found one solution similar to what is required Similar solution however this solution does not work for d3 v4+.

Additionally, I have found a viable approach from d3 named d3.line().curve(d3.curveStepAfter) (I'm not sure if this is the correct use) an example can be seen here. However I can not find a way to implement this for my current set-up which uses x1, y1, and x2, y2.

Data ...

ANSWER

Answered 2021-Aug-06 at 00:13

Here's a complete example.

Source https://stackoverflow.com/questions/68668699

QUESTION

interpreting the d3 centering force

Asked 2021-Jul-24 at 20:08

D3's force simulation centering force uses the following code where:

n equals the number of nodes,
x equals the centering x value
y equals the centering y value
sx and sy being as 0.

source code

First the force does this:

...

ANSWER

Answered 2021-Jul-24 at 20:08

D3's centering force doesn't push nodes to the center, it moves nodes so that their center of gravity is (closer to) the specified location (with all nodes having equal mass). In other words it does not exert a gravitational pull on any individual node. Instead, if collectively the nodes are all located to the right of the specified center, they are all equally translated so that the actual center of gravity approaches the specified center of gravity. In this way it does not pull any individual node towards the center, it pulls all nodes equally towards the specified center (ie it pulls the graphs as a single entity towards the center).

The first part sums up the positioning of the nodes' x and y values as sx and sy (my guess is the s stands for sum). The second part finds the average position using these totals (sx/n - x where n equals number of nodes and x the center x value) and applies the same correction to each node based on the strength of the effect.

If you are looking to pull nodes closer to a centering point, this force will not help. Instead you can use d3.forceX and d3.forceY which will:

The x- and y-positioning forces push nodes towards a desired position along the given dimension with a configurable strength. (docs)

Here the x and y values will attract nodes, individually, to a specified x value, y value, or coordinate depending on if you use one or both of d3.forceX and d3.forceY.

Source https://stackoverflow.com/questions/68511541

QUESTION

What environment do I need to run a vasturiano 3D-Force Graph?

Asked 2021-Jun-04 at 16:01

I only know javascript from a web browser perspective but I need to display data online in the way this web component does: https://github.com/vasturiano/3d-force-graph

The thing is that the setup instructions there aren't newbies friendly at all. It assumes some basic to advanced knowledge. So I made some research and even though everyone talking about the component say it's very easy to implement, none of them say how.

I kind of presume that there must be some javascript server involved (node.js ?). That Three.js and d3-force-3d must be imported (somehow, somewhere). But that's it. I'm not even sure it's enough. But I just can't figure out how to setup the whole thing so that I can run one of those scripts.

So, can anyone just give me hints, at a newbie level, so that I can work my way through using those scripts? Because at this point, I'm willing to search but I don't know what to search for exactly. I'm lacking the big picture while the info in the link are very particular and not very thorough.

I searched the web for two days but there is not much to find about 3d-force-graph and there is zero info on how to set it up.

All I need is a bridge in terms of info, so that these scripts can be set up and run (with custom data) by a non expert. I mean what environment, what libraries/dependencies, what to import, how to import, etc. Not necessarily in details as any help would be a good starting point.

Thank you.

...

ANSWER

Answered 2021-Jun-04 at 16:01

I was able to run the basic example by simply creating an .html file and putting it in a web server. So if you grab the Basic example (https://github.com/vasturiano/3d-force-graph/blob/master/example/basic/index.html) and get that file content into your development web server.

So the index.html file would look like:

Source https://stackoverflow.com/questions/67839114

QUESTION

MapBox: Legend not working when full screen

Asked 2021-Apr-27 at 00:28

I have a legend inside the map, is working fine when the map is not full screen, but when the map is full screen the legend is not showing.

To Reproduce

Steps to reproduce the behavior:

Open the map and see the legend is present and working fine
Click full screen icon
The legend is not present
Click full screen icon again to remove the full screen, now the legend is present and working fine

Expected behavior

The legend should work fine when full screen.

Screenshots

Normal screen, working fine:

Full screen, not showing the legend:

Additional context

Code example available on codesandbox https://codesandbox.io/s/ecstatic-wave-c3qmg. You should open the link https://c3qmg.csb.app/ on another page to be able to see the fullscreen icon.

Code extract:

...

ANSWER

Answered 2021-Apr-27 at 00:28

By default, the Mapbox GL JS fullscreen control only makes the map container itself full screen. Nothing else on the screen will be visible.

So you need to pass the container element through to Vue-Mapbox's MglFullScreenControl as the container parameter, along these lines:

Source https://stackoverflow.com/questions/67226429

QUESTION

Apply zoom to tooltip in D3 tree

Asked 2021-Mar-19 at 23:11

I'm trying to create a HTML tooltip that can be zoomed in and out with D3 zoom effect. I've managed to have it working partially, because the positioning of the tooltip is wrong, but it is being zoomed correctly.

I've tried something similar to what has been said in this question, but without success.

What do I need to do? I guess it's only a problem with the zoom event of the zoomBehaviours object, but I can't find the way to solve it.

In the following snippet you can see what's the current state of the tooltip.

...

ANSWER

Answered 2021-Mar-19 at 23:11

I finally made it with a simple modification of this question. The problem was that I was shifting the tooltip with a translate event that was not necessary. This would be the look of the code after the change. Notice that I only changed the zoom event of the zoomBehaviours object.

Source https://stackoverflow.com/questions/66662973

QUESTION

How to update d3-force elements?

Asked 2020-Nov-23 at 14:34

I want to update d3-force elements when click, but I find something wrong. What I want is:

generate all links first
then generate all nodes, so that the node can override the link

So when clicked the elements should be:

...

ANSWER

Answered 2020-Nov-23 at 14:33

You could have separate g elements for the nodes and the links, add the links to the first one, and the nodes to the second. Or, you could just use node.raise() to put those elements after all the links in the DOM:

Source https://stackoverflow.com/questions/64970386

QUESTION

d3Force's d3.forceLink error: node not found:

Asked 2020-Nov-17 at 09:13

I see this related solution D3js Force Directed Graph Link not found

yet I get the error in the title - "VM2128 d3-force-3d:2 Uncaught Error: node not found: golfing_4_1"

...

ANSWER

Answered 2020-Nov-17 at 09:13

The underlying problem was that you needed to pass the entire graphData to your d3.forceLink function, not just graphData.link. However, I think the following solution is cleaner:

From the documentation of 3d-force-graph for Graph.d3Force():

Getter/setter for the internal forces that control the d3 simulation engine. Follows the same interface as d3-force-3d's simulation.force. Three forces are included by default: 'link' (based on forceLink), 'charge' (based on forceManyBody) and 'center' (based on forceCenter).

This means that you can call the function with only a string 'link' and you get an object of type d3-force-3d.forceLink, which is automatically applied and thus automatically has access to the right graphData. Then, you can set forceLink.id just like you did, but you can also set it later.

Source https://stackoverflow.com/questions/64851658

QUESTION

How to change angle of nodes and links in d3-force?

Asked 2020-Nov-16 at 10:30

I am new to d3-force, I find that it is difficult to change the angle of lines and nodes,you can run my code here.

Anyway, my code is very easy:

...

ANSWER

Answered 2020-Nov-16 at 10:30

I wouldn't use d3-force, but just calculate the positions yourself, using some basic trigonometry:

Source https://stackoverflow.com/questions/64832301

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

No vulnerabilities reported

Install d3-force

You can install using 'npm i d3f' or download it from GitHub, npm.

Support

For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .

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