ProductPromotion
Logo

Java.Script

made by https://0x3d.site

GitHub - jagenjo/litegraph.js: A graph node engine and editor written in Javascript similar to PD or UDK Blueprints, comes with its own editor in HTML5 Canvas2D. The engine can run client side or server side using Node. It allows to export graphs as JSONs to be included in applications independently.
A graph node engine and editor written in Javascript similar to PD or UDK Blueprints, comes with its own editor in HTML5 Canvas2D. The engine can run client side or server side using Node. It allow...
Visit Site

GitHub - jagenjo/litegraph.js: A graph node engine and editor written in Javascript similar to PD or UDK Blueprints, comes with its own editor in HTML5 Canvas2D. The engine can run client side or server side using Node. It allows to export graphs as JSONs to be included in applications independently.

GitHub - jagenjo/litegraph.js: A graph node engine and editor written in Javascript similar to PD or UDK Blueprints, comes with its own editor in HTML5 Canvas2D. The engine can run client side or server side using Node. It allows to export graphs as JSONs to be included in applications independently.

litegraph.js

A library in Javascript to create graphs in the browser similar to Unreal Blueprints. Nodes can be programmed easily and it includes an editor to construct and tests the graphs.

It can be integrated easily in any existing web applications and graphs can be run without the need of the editor.

Try it in the demo site.

Node Graph

Features

  • Renders on Canvas2D (zoom in/out and panning, easy to render complex interfaces, can be used inside a WebGLTexture)
  • Easy to use editor (searchbox, keyboard shortcuts, multiple selection, context menu, ...)
  • Optimized to support hundreds of nodes per graph (on editor but also on execution)
  • Customizable theme (colors, shapes, background)
  • Callbacks to personalize every action/drawing/event of nodes
  • Subgraphs (nodes that contain graphs themselves)
  • Live mode system (hides the graph but calls nodes to render whatever they want, useful to create UIs)
  • Graphs can be executed in NodeJS
  • Highly customizable nodes (color, shape, slots vertical or horizontal, widgets, custom rendering)
  • Easy to integrate in any JS application (one single file, no dependencies)
  • Typescript support

Nodes provided

Although it is easy to create new node types, LiteGraph comes with some default nodes that could be useful for many cases:

  • Interface (Widgets)
  • Math (trigonometry, math operations)
  • Audio (AudioAPI and MIDI)
  • 3D Graphics (Postprocessing in WebGL)
  • Input (read Gamepad)

Installation

You can install it using npm

npm install litegraph.js

Or downloading the build/litegraph.js and css/litegraph.css version from this repository.

First project

<html>
<head>
	<link rel="stylesheet" type="text/css" href="litegraph.css">
	<script type="text/javascript" src="litegraph.js"></script>
</head>
<body style='width:100%; height:100%'>
<canvas id='mycanvas' width='1024' height='720' style='border: 1px solid'></canvas>
<script>
var graph = new LGraph();

var canvas = new LGraphCanvas("#mycanvas", graph);

var node_const = LiteGraph.createNode("basic/const");
node_const.pos = [200,200];
graph.add(node_const);
node_const.setValue(4.5);

var node_watch = LiteGraph.createNode("basic/watch");
node_watch.pos = [700,200];
graph.add(node_watch);

node_const.connect(0, node_watch, 0 );

graph.start()
</script>
</body>
</html>

How to code a new Node type

Here is an example of how to build a node that sums two inputs:

//node constructor class
function MyAddNode()
{
  this.addInput("A","number");
  this.addInput("B","number");
  this.addOutput("A+B","number");
  this.properties = { precision: 1 };
}

//name to show
MyAddNode.title = "Sum";

//function to call when the node is executed
MyAddNode.prototype.onExecute = function()
{
  var A = this.getInputData(0);
  if( A === undefined )
    A = 0;
  var B = this.getInputData(1);
  if( B === undefined )
    B = 0;
  this.setOutputData( 0, A + B );
}

//register in the system
LiteGraph.registerNodeType("basic/sum", MyAddNode );

or you can wrap an existing function:

function sum(a,b)
{
   return a+b;
}

LiteGraph.wrapFunctionAsNode("math/sum",sum, ["Number","Number"],"Number");

Server side

It also works server-side using NodeJS although some nodes do not work in server (audio, graphics, input, etc).

var LiteGraph = require("./litegraph.js").LiteGraph;

var graph = new LiteGraph.LGraph();

var node_time = LiteGraph.createNode("basic/time");
graph.add(node_time);

var node_console = LiteGraph.createNode("basic/console");
node_console.mode = LiteGraph.ALWAYS;
graph.add(node_console);

node_time.connect( 0, node_console, 1 );

graph.start()

Projects using it

comfyUI

screenshot

webglstudio.org

WebGLStudio

MOI Elephant

MOI Elephant

Mynodes

MyNodes

Utils

It includes several commands in the utils folder to generate doc, check errors and build minifyed version.

Demo

The demo includes some examples of graphs. In order to try them you can visit demo site or install it on your local computer, to do so you need git, node and npm. Given those dependencies are installed, run the following commands to try it out:

$ git clone https://github.com/jagenjo/litegraph.js.git
$ cd litegraph.js
$ npm install
$ node utils/server.js
Example app listening on port 80!

Open your browser and point it to http://localhost:8000/. You can select a demo from the dropdown at the top of the page.

Feedback

You can write any feedback to [email protected]

Contributors

  • atlasan
  • kriffe
  • rappestad
  • InventivetalentDev
  • NateScarlet
  • coderofsalvation
  • ilyabesk
  • gausszhou

More Resources
to explore the angular.

mail [email protected] to add your project or resources here 🔥.

Related Articles
to learn about angular.

FAQ's
to learn more about Angular JS.

mail [email protected] to add more queries here 🔍.

More Sites
to check out once you're finished browsing here.

0x3d
https://www.0x3d.site/
0x3d is designed for aggregating information.
NodeJS
https://nodejs.0x3d.site/
NodeJS Online Directory
Cross Platform
https://cross-platform.0x3d.site/
Cross Platform Online Directory
Open Source
https://open-source.0x3d.site/
Open Source Online Directory
Analytics
https://analytics.0x3d.site/
Analytics Online Directory
JavaScript
https://javascript.0x3d.site/
JavaScript Online Directory
GoLang
https://golang.0x3d.site/
GoLang Online Directory
Python
https://python.0x3d.site/
Python Online Directory
Swift
https://swift.0x3d.site/
Swift Online Directory
Rust
https://rust.0x3d.site/
Rust Online Directory
Scala
https://scala.0x3d.site/
Scala Online Directory
Ruby
https://ruby.0x3d.site/
Ruby Online Directory
Clojure
https://clojure.0x3d.site/
Clojure Online Directory
Elixir
https://elixir.0x3d.site/
Elixir Online Directory
Elm
https://elm.0x3d.site/
Elm Online Directory
Lua
https://lua.0x3d.site/
Lua Online Directory
C Programming
https://c-programming.0x3d.site/
C Programming Online Directory
C++ Programming
https://cpp-programming.0x3d.site/
C++ Programming Online Directory
R Programming
https://r-programming.0x3d.site/
R Programming Online Directory
Perl
https://perl.0x3d.site/
Perl Online Directory
Java
https://java.0x3d.site/
Java Online Directory
Kotlin
https://kotlin.0x3d.site/
Kotlin Online Directory
PHP
https://php.0x3d.site/
PHP Online Directory
React JS
https://react.0x3d.site/
React JS Online Directory
Angular
https://angular.0x3d.site/
Angular JS Online Directory