react-force-graph

2D:

3D:

VR:

AR:

React bindings for the force-graph suite of components: force-graph (2D HTML Canvas), 3d-force-graph (ThreeJS/WebGL), 3d-force-graph-vr (A-Frame) and 3d-force-graph-ar (AR.js).

This module exports 4 stand-alone React component packages with identical interfaces: react-force-graph-2d, react-force-graph-3d, react-force-graph-vr and react-force-graph-ar. Each can be used to represent a graph data structure in a 2 or 3-dimensional space using a force-directed iterative layout.

Uses canvas/WebGL for rendering and d3-force-3d for the underlying physics engine. Supports zooming/panning, node dragging and node/link hover/click interactions.

See also the react-three-fiber component.

Examples

• Basic (source)
• Directional arrows (source)
• Directional moving particles (source)
• Auto-colored nodes/links (source)
• AR graph (source)
• 2D Text nodes (source)
• 3D Text nodes (source)
• Image nodes (source)
• HTML in nodes (source)
• Custom 2D node shapes (source)
• Custom 3D/VR node geometries (source)
• Curved lines and self links (source)
• Text in links (source)
• Highlight nodes/links (source)
• Multiple Node Selection (source)
• Larger graph (source)
• Dynamic data changes (source)
• Click to focus on node (source)
• Click to expand/collapse nodes (source)
• Fix nodes after dragging (source)
• Fit graph to canvas (source)
• Camera automatic orbitting (source)
• Node collision detection (source)
• Emit link particles on demand (source)
• Force-directed tree (DAG mode) (source)
• Bloom Post-Processing Effect (source)

❤️ Support This Project

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Quick start

import ForceGraph2D from 'react-force-graph-2d';
import ForceGraph3D from 'react-force-graph-3d';
import ForceGraphVR from 'react-force-graph-vr';
import ForceGraphAR from 'react-force-graph-ar';

or using a script tag

<script src="//cdn.jsdelivr.net/npm/react-force-graph-2d"></script>
<script src="//cdn.jsdelivr.net/npm/react-force-graph-3d"></script>
<script src="//cdn.jsdelivr.net/npm/react-force-graph-vr"></script>
<script src="//cdn.jsdelivr.net/npm/react-force-graph-ar"></script>

then

<ForceGraph3D
  graphData={myData}
/>

API reference

Note that not all props listed below apply to all 4 components. The last 4 columns in these tables indicate the specific component availability of each prop/method.

Data input

Prop	Type	Default	Description	2D	3D	VR	AR
graphData	object	{ nodes: [], links: [] }	Graph data structure (see below for syntax details). Can also be used to apply incremental updates.	✔️	✔️	✔️	✔️
nodeId	string	id	Node object accessor attribute for unique node id (used in link objects source/target).	✔️	✔️	✔️	✔️
linkSource	string	source	Link object accessor attribute referring to id of source node.	✔️	✔️	✔️	✔️
linkTarget	string	target	Link object accessor attribute referring to id of target node.	✔️	✔️	✔️	✔️

Container layout

Prop	Type	Default	Description	2D	3D	VR	AR
width	number	<window width>	Canvas width, in px.	✔️	✔️	✔️	✔️
height	number	<window height>	Canvas height, in px.	✔️	✔️	✔️	✔️
backgroundColor	string	(2D - light / 3D - dark)	Chart background color.	✔️	✔️	✔️
showNavInfo	bool	true	Whether to show the navigation controls footer info.		✔️	✔️
yOffset	number	1.5	In AR mode, defines the offset distance above the marker where to place the center coordinates <0,0,0> of the force directed graph. Measured in terms of marker width units.				✔️
glScale	number	200	In AR mode, defines the translation scale between real world distances and WebGL units, determining the overall size of the graph. Defined in terms of how many GL units fit in a full marker width.				✔️
markerAttrs	object	{ preset: 'hiro' }	Set of attributes that define the marker where the AR force directed graph is mounted, according to the a-marker specification. This prop only has an effect on component mount.				✔️

Node styling

Prop	Type	Default	Description	2D	3D	VR	AR
nodeRelSize	number	4	Ratio of node circle area (square px) [2D] or sphere volume (cubic px) [3D] per value unit.	✔️	✔️	✔️	✔️
nodeVal	number, string or func	val	Node object accessor function, attribute or a numeric constant for the node numeric value (affects node size).	✔️	✔️	✔️	✔️
nodeLabel	string or func	name	Node object accessor function or attribute for name (shown in label). Supports plain text or HTML content (except in VR).	✔️	✔️	✔️
nodeDesc	string or func	desc	For VR only. Node object accessor function or attribute for description (shown under label).			✔️
nodeVisibility	bool, string or func	true	Node object accessor function, attribute or a boolean constant for whether to display the node.	✔️	✔️	✔️	✔️
nodeColor	string or func	color	Node object accessor function or attribute for node color.	✔️	✔️	✔️	✔️
nodeAutoColorBy	string or func		Node object accessor function or attribute to automatically group colors by. Only affects nodes without a color attribute.	✔️	✔️	✔️	✔️
nodeOpacity	number	0.75	Nodes sphere opacity, between [0,1].		✔️	✔️	✔️
nodeResolution	number	8	Geometric resolution of each node's sphere, expressed in how many slice segments to divide the circumference. Higher values yield smoother spheres. Only applicable to 3D modes.		✔️	✔️	✔️
nodeCanvasObject	func	default 2D node object is a circle, sized according to val and styled according to color.	Callback function for painting a custom 2D canvas object to represent graph nodes. Should use the provided canvas context attribute to perform drawing operations for each node. The callback function will be called for each node at every frame, and has the signature: nodeCanvasObject(<node>, <canvas context>, <current global scale>).	✔️
nodeCanvasObjectMode	string or func	() => 'replace'	Node object accessor function or attribute for the custom drawing mode. Use in combination with nodeCanvasObject to specify how to customize nodes painting. Possible values are: replace: the node is rendered using just nodeCanvasObject. before: the node is rendered by invoking nodeCanvasObject and then proceeding with the default node painting. after: nodeCanvasObject is applied after the default node painting takes place. Any other value will be ignored and the default drawing will be applied.	✔️
nodeThreeObject	Object3d, string or func	default 3D node object is a sphere, sized according to val and styled according to color.	Node object accessor function or attribute for generating a custom 3d object to render as graph nodes. Should return an instance of ThreeJS Object3d. If a falsy value is returned, the default 3d object type will be used instead for that node.		✔️	✔️	✔️
nodeThreeObjectExtend	bool, string or func	false	Node object accessor function, attribute or a boolean value for whether to replace the default node when using a custom nodeThreeObject (false) or to extend it (true).		✔️	✔️	✔️
nodePositionUpdate	func(nodeObject, coords, node)		Getter/setter for the custom function to call for updating the position of nodes at every render iteration. It receives the respective node ThreeJS Object3d, the coordinates of the node ({x,y,z} each), and the node's data. If the function returns a truthy value, the regular position update function will not run for that node.		✔️	✔️	✔️

Link styling

Prop	Type	Default	Description	2D	3D	VR	AR
linkLabel	string or func	name	Link object accessor function or attribute for name (shown in label). Supports plain text or HTML content (except in VR).	✔️	✔️	✔️
linkDesc	string or func	desc	For VR only. Link object accessor function or attribute for description (shown under label).			✔️
linkVisibility	bool, string or func	true	Link object accessor function, attribute or a boolean constant for whether to display the link line.	✔️	✔️	✔️	✔️
linkColor	string or func	color	Link object accessor function or attribute for line color.	✔️	✔️	✔️	✔️
linkAutoColorBy	string or func		Link object accessor function or attribute to automatically group colors by. Only affects links without a color attribute.	✔️	✔️	✔️	✔️
linkOpacity	number	0.2	Line opacity of links, between [0,1].		✔️	✔️	✔️
linkLineDash	number[], string or func]		Link object accessor function, attribute or number array (e.g. [5, 15]) to determine if a line dash should be applied to this rendered link. Refer to the HTML canvas setLineDash API for example values. Either a falsy value or an empty array will disable dashing.	✔️
linkWidth	number, string or func	1	Link object accessor function, attribute or a numeric constant for the link line width.	✔️	✔️	✔️	✔️
linkResolution	number	6	Geometric resolution of each link 3D line, expressed in how many radial segments to divide the cylinder. Higher values yield smoother cylinders. Applicable only to links with positive width.		✔️	✔️	✔️
linkCurvature	number, string or func	0	Link object accessor function, attribute or a numeric constant for the curvature radius of the link line. A value of 0 renders a straight line. 1 indicates a radius equal to half of the line length, causing the curve to approximate a semi-circle. For self-referencing links (source equal to target) the curve is represented as a loop around the node, with length proportional to the curvature value.	✔️	✔️	✔️	✔️
linkCurveRotation	number, string or func	0	Link object accessor function, attribute or a numeric constant for the rotation along the line axis to apply to the curve. Has no effect on straight lines. At 0 rotation, the curve is oriented in the direction of the intersection with the XY plane. The rotation angle (in radians) will rotate the curved line clockwise around the "start-to-end" axis from this reference orientation.		✔️	✔️	✔️
linkMaterial	Material, string or func	default link material is MeshLambertMaterial styled according to color and opacity.	Link object accessor function or attribute for specifying a custom material to style the graph links with. Should return an instance of ThreeJS Material. If a falsy value is returned, the default material will be used instead for that link.		✔️	✔️	✔️
linkCanvasObject	func	default 2D link object is a line, styled according to width and color.	Callback function for painting a custom canvas object to represent graph links. Should use the provided canvas context attribute to perform drawing operations for each link. The callback function will be called for each link at every frame, and has the signature: .linkCanvasObject(<link>, <canvas context>, <current global scale>).	✔️
linkCanvasObjectMode	string or func	() => 'replace'	Link object accessor function or attribute for the custom drawing mode. Use in combination with linkCanvasObject to specify how to customize links painting. Possible values are: replace: the link is rendered using just linkCanvasObject. before: the link is rendered by invoking linkCanvasObject and then proceeding with the default link painting. after: linkCanvasObject is applied after the default link painting takes place. Any other value will be ignored and the default drawing will be applied.	✔️
linkThreeObject	Object3d, string or func	default 3D link object is a line or cylinder, sized according to width and styled according to material.	Link object accessor function or attribute for generating a custom 3d object to render as graph links. Should return an instance of ThreeJS Object3d. If a falsy value is returned, the default 3d object type will be used instead for that link.		✔️	✔️	✔️
linkThreeObjectExtend	bool, string or func	false	Link object accessor function, attribute or a boolean value for whether to replace the default link when using a custom linkThreeObject (false) or to extend it (true).		✔️	✔️	✔️
linkPositionUpdate	func(linkObject, { start, end }, link)		Custom function to call for updating the position of links at every render iteration. It receives the respective link ThreeJS Object3d, the start and end coordinates of the link ({x,y,z} each), and the link's data. If the function returns a truthy value, the regular position update function will not run for that link.		✔️	✔️	✔️
linkDirectionalArrowLength	number, string or func	0	Link object accessor function, attribute or a numeric constant for the length of the arrow head indicating the link directionality. The arrow is displayed directly over the link line, and points in the direction of source > target. A value of 0 hides the arrow.	✔️	✔️	✔️	✔️
linkDirectionalArrowColor	string or func	color	Link object accessor function or attribute for the color of the arrow head.	✔️	✔️	✔️	✔️
linkDirectionalArrowRelPos	number, string or func	0.5	Link object accessor function, attribute or a numeric constant for the longitudinal position of the arrow head along the link line, expressed as a ratio between 0 and 1, where 0 indicates immediately next to the source node, 1 next to the target node, and 0.5 right in the middle.	✔️	✔️	✔️	✔️
linkDirectionalArrowResolution	number	8	Geometric resolution of the arrow head, expressed in how many slice segments to divide the cone base circumference. Higher values yield smoother arrows.		✔️	✔️	✔️
linkDirectionalParticles	number, string or func	0	Link object accessor function, attribute or a numeric constant for the number of particles (small spheres) to display over the link line. The particles are distributed equi-spaced along the line, travel in the direction source > target, and can be used to indicate link directionality.	✔️	✔️	✔️	✔️
linkDirectionalParticleSpeed	number, string or func	0.01	Link object accessor function, attribute or a numeric constant for the directional particles speed, expressed as the ratio of the link length to travel per frame. Values above 0.5 are discouraged.	✔️	✔️	✔️	✔️
linkDirectionalParticleWidth	number, string or func	0.5	Link object accessor function, attribute or a numeric constant for the directional particles width. Values are rounded to the nearest decimal for indexing purposes.	✔️	✔️	✔️	✔️
linkDirectionalParticleColor	string or func	color	Link object accessor function or attribute for the directional particles color.	✔️	✔️	✔️	✔️
linkDirectionalParticleResolution	number	4	Geometric resolution of each 3D directional particle, expressed in how many slice segments to divide the circumference. Higher values yield smoother particles.		✔️	✔️	✔️

Method	Arguments	Description	2D	3D	VR	AR
emitParticle	(link)	An alternative mechanism for generating particles, this method emits a non-cyclical single particle within a specific link. The emitted particle shares the styling (speed, width, color) of the regular particle props. A valid link object that is included in graphData should be passed as a single parameter.	✔️	✔️	✔️	✔️

Render control

Prop	Type	Default	Description	2D	3D	VR	AR
rendererConfig	object	{ antialias: true, alpha: true }	Configuration parameters to pass to the ThreeJS WebGLRenderer constructor. This prop only has an effect on component mount.		✔️
extraRenderers	array	[]	If you wish to include custom objects that require a dedicated renderer besides WebGL, such as CSS3DRenderer, include in this array those extra renderer instances.		✔️
autoPauseRedraw	bool	true	Enable performance optimization to automatically pause redrawing the 2D canvas at every frame whenever the simulation engine is halted. If you have custom dynamic objects that rely on a constant redraw of the canvas, it's recommended to switch this option off.	✔️
minZoom	number	0.01	Lowest zoom out level permitted on the 2D canvas.	✔️
maxZoom	number	1000	Highest zoom in level permitted on the 2D canvas.	✔️
onRenderFramePre	func	-	Callback function to invoke at every frame, immediately before any node/link is rendered to the canvas. This can be used to draw additional external items on the canvas. The canvas context and the current global scale are included as parameters: .onRenderFramePre(<canvas context>, <global scale>).	✔️
onRenderFramePost	func	-	Callback function to invoke at every frame, immediately after the last node/link is rendered to the canvas. This can be used to draw additional external items on the canvas. The canvas context and the current global scale are included as parameters: .onRenderFramePost(<canvas context>, <global scale>).	✔️

Method	Arguments	Description	2D	3D	VR	AR
pauseAnimation	-	Pauses the rendering cycle of the component, effectively freezing the current view and cancelling all user interaction. This method can be used to save performance in circumstances when a static image is sufficient.	✔️	✔️
resumeAnimation	-	Resumes the rendering cycle of the component, and re-enables the user interaction. This method can be used together with pauseAnimation for performance optimization purposes.	✔️	✔️
centerAt	([x], [y], [ms])	Set the coordinates of the center of the viewport. This method can be used to perform panning on the 2D canvas programmatically. Each of the x, y coordinates is optional, allowing for motion in just one dimension. An optional 3rd argument defines the duration of the transition (in ms) to animate the canvas motion.	✔️
zoom	([number], [ms])	Set the 2D canvas zoom amount. The zoom is defined in terms of the scale transform of each px. A value of 1 indicates unity, larger values zoom in and smaller values zoom out. An optional 2nd argument defines the duration of the transition (in ms) to animate the canvas motion. By default the zoom is set to a value inversely proportional to the amount of nodes in the system.	✔️
zoomToFit	([ms], [px], [nodeFilterFn])	Automatically zooms/pans the canvas so that all of the nodes fit inside it. If no nodes are found no action is taken. It accepts two optional arguments: the first defines the duration of the transition (in ms) to animate the canvas motion (default: 0ms). The second argument is the amount of padding (in px) between the edge of the canvas and the outermost node (default: 10px). The third argument specifies a custom node filter: node => <boolean>, which should return a truthy value if the node is to be included. This can be useful for focusing on a portion of the graph.	✔️	✔️
cameraPosition	([{x,y,z}],[lookAt], [ms])	Re-position the camera, in terms of x, y, z coordinates. Each of the coordinates is optional, allowing for motion in just some dimensions. The optional second argument can be used to define the direction that the camera should aim at, in terms of an {x,y,z} point in the 3D space. The 3rd optional argument defines the duration of the transition (in ms) to animate the camera motion. A value of 0 (default) moves the camera immediately to the final position. By default the camera will face the center of the graph at a z distance proportional to the amount of nodes in the system.		✔️
lights	([array])	Getter/setter for the list of lights to use in the scene. Each item should be an instance of Light.		✔️
scene	-	Access the internal ThreeJS Scene.		✔️
camera	-	Access the internal ThreeJS Camera.		✔️
renderer	-	Access the internal ThreeJS WebGL renderer.		✔️
postProcessingComposer	-	Access the post-processing composer. Use this to add post-processing rendering effects to the scene. By default the composer has a single pass (RenderPass) that directly renders the scene without any effects.		✔️
controls	-	Access the internal ThreeJS controls object.		✔️
refresh	-	Redraws all the nodes/links.		✔️	✔️	✔️

Force engine configuration

Prop	Type	Default	Description	2D	3D	VR	AR
numDimensions	1, 2 or 3	3	Not applicable to 2D mode. Number of dimensions to run the force simulation on.		✔️	✔️	✔️
forceEngine	string	d3	Which force-simulation engine to use (d3 or ngraph).		✔️	✔️	✔️
dagMode	string	-	Apply layout constraints based on the graph directionality. Only works correctly for DAG graph structures (without cycles). Choice between td (top-down), bu (bottom-up), lr (left-to-right), rl (right-to-left), zout (near-to-far), zin (far-to-near), radialout (outwards-radially) or radialin (inwards-radially).	✔️	✔️	✔️	✔️
dagLevelDistance	number	auto-derived from the number of nodes	If dagMode is engaged, this specifies the distance between the different graph depths.	✔️	✔️	✔️	✔️
dagNodeFilter	func	node => true	Node accessor function to specify nodes to ignore during the DAG layout processing. This accessor method receives a node object and should return a boolean value indicating whether the node is to be included. Excluded nodes will be left unconstrained and free to move in any direction.	✔️	✔️	✔️	✔️
onDagError	func	-	Callback to invoke if a cycle is encountered while processing the data structure for a DAG layout. The loop segment of the graph is included for information, as an array of node ids. By default an exception will be thrown whenever a loop is encountered. You can override this method to handle this case externally and allow the graph to continue the DAG processing. Strict graph directionality is not guaranteed if a loop is encountered and the result is a best effort to establish a hierarchy.	✔️	✔️	✔️	✔️
d3AlphaMin	number	0	Sets the simulation alpha min parameter. Only applicable if using the d3 simulation engine.	✔️	✔️	✔️	✔️
d3AlphaDecay	number	0.0228	Sets the simulation intensity decay parameter. Only applicable if using the d3 simulation engine.	✔️	✔️	✔️	✔️
d3VelocityDecay	number	0.4	Nodes' velocity decay that simulates the medium resistance. Only applicable if using the d3 simulation engine.	✔️	✔️	✔️	✔️
ngraphPhysics	object	-	Specify custom physics configuration for ngraph, according to its configuration object syntax. Only applicable if using the ngraph simulation engine.		✔️	✔️	✔️
warmupTicks	number	0	Number of layout engine cycles to dry-run at ignition before starting to render.	✔️	✔️	✔️	✔️
cooldownTicks	number	Infinity	How many build-in frames to render before stopping and freezing the layout engine.	✔️	✔️	✔️	✔️
cooldownTime	number	15000	How long (ms) to render for before stopping and freezing the layout engine.	✔️	✔️	✔️	✔️
onEngineTick	func	-	Callback function invoked at every tick of the simulation engine.	✔️	✔️	✔️	✔️
onEngineStop	func	-	Callback function invoked when the simulation engine stops and the layout is frozen.	✔️	✔️	✔️	✔️

Method	Arguments	Description	2D	3D	VR	AR
d3Force	(string, [func])	Access to 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). Each of these forces can be reconfigured, or new forces can be added to the system. Only applicable if using the d3 simulation engine.	✔️	✔️	✔️	✔️
d3ReheatSimulation	()	Reheats the force simulation engine, by setting the alpha value to 1. Only applicable if using the d3 simulation engine.	✔️	✔️	✔️	✔️

Interaction

Prop	Type	Default	Description	2D	3D	VR	AR
onNodeClick	func	-	Callback function for node (left-button) clicks. The node object and the event object are included as arguments onNodeClick(node, event).	✔️	✔️	✔️	✔️
onNodeRightClick	func	-	Callback function for node right-clicks. The node object and the event object are included as arguments onNodeRightClick(node, event).	✔️	✔️
onNodeHover	func	-	Callback function for node mouse over events. The node object (or null if there's no node under the pointer line of sight) is included as the first argument, and the previous node object (or null) as second argument: onNodeHover(node, prevNode).	✔️	✔️	✔️	✔️
onNodeDrag	func	-	Callback function for node drag interactions. This function is invoked repeatedly while dragging a node, every time its position is updated. The node object is included as the first argument, and the change in coordinates since the last iteration of this function are included as the second argument in format {x,y,z}: onNodeDrag(node, translate).	✔️	✔️
onNodeDragEnd	func	-	Callback function for the end of node drag interactions. This function is invoked when the node is released. The node object is included as the first argument, and the change in coordinates from the node's initial postion are included as the second argument in format {x,y,z}: onNodeDragEnd(node, translate).	✔️	✔️
onLinkClick	func	-	Callback function for link (left-button) clicks. The link object and the event object are included as arguments onLinkClick(link, event).	✔️	✔️	✔️	✔️
onLinkRightClick	func	-	Callback function for link right-clicks. The link object and the event object are included as arguments onLinkRightClick(link, event).	✔️	✔️
onLinkHover	func	-	Callback function for link mouse over events. The link object (or null if there's no link under the pointer line of sight) is included as the first argument, and the previous link object (or null) as second argument: onLinkHover(link, prevLink).	✔️	✔️	✔️	✔️
onBackgroundClick	func	-	Callback function for click events on the empty space between the nodes and links. The event object is included as single argument onBackgroundClick(event).	✔️	✔️
onBackgroundRightClick	func	-	Callback function for right-click events on the empty space between the nodes and links. The event object is included as single argument onBackgroundRightClick(event).	✔️	✔️
linkHoverPrecision	number	4	Whether to display the link label when gazing the link closely (low value) or from far away (high value).	✔️	✔️
onZoom	func	-	Callback function for zoom/pan events. The current zoom transform is included as single argument onZoom({ k, x, y }). Note that onZoom is triggered by user interaction as well as programmatic zooming/panning with zoom() and centerAt().	✔️
onZoomEnd	func	-	Callback function for on 'end' of zoom/pan events. The current zoom transform is included as single argument onZoomEnd({ k, x, y }). Note that onZoomEnd is triggered by user interaction as well as programmatic zooming/panning with zoom() and centerAt().	✔️
controlType	string	trackball	Which type of control to use to control the camera on 3D mode. Choice between trackball, orbit or fly.		✔️
enableZoomInteraction	bool	true	Whether to enable zooming user interactions on a 2D canvas.	✔️
enablePanInteraction	bool	true	Whether to enable panning user interactions on a 2D canvas.	✔️
enableNavigationControls	bool	true	Whether to enable the trackball navigation controls used to move the camera using mouse interactions (rotate/zoom/pan).		✔️
enablePointerInteraction	bool	true	Whether to enable the mouse tracking events. This activates an internal tracker of the canvas mouse position and enables the functionality of object hover/click and tooltip labels, at the cost of performance. If you're looking for maximum gain in your graph performance it's recommended to switch off this property.	✔️	✔️
enableNodeDrag	bool	true	Whether to enable the user interaction to drag nodes by click-dragging. If enabled, every time a node is dragged the simulation is re-heated so the other nodes react to the changes. Only applicable if enablePointerInteraction is true.	✔️	✔️
nodePointerAreaPaint	func	default interaction area is a circle centered on the node and sized according to val.	Callback function for painting a canvas area used to detect node pointer interactions. The provided paint color uniquely identifies the node and should be used to perform drawing operations on the provided canvas context. This painted area will not be visible, but instead be used to detect pointer interactions with the node. The callback function has the signature: nodePointerAreaPaint(<node>, <color>, <canvas context>, <current global scale>).	✔️
linkPointerAreaPaint	func	default interaction area is a straight line between the source and target nodes.	Callback function for painting a canvas area used to detect link pointer interactions. The provided paint color uniquely identifies the link and should be used to perform drawing operations on the provided canvas context. This painted area will not be visible, but instead be used to detect pointer interactions with the link. The callback function has the signature: linkPointerAreaPaint(<link>, <color>, <canvas context>, <current global scale>).	✔️

Utility

Method	Arguments	Description	2D	3D	VR	AR
getGraphBbox	([nodeFilterFn])	Returns the current bounding box of the nodes in the graph, formatted as { x: [<num>, <num>], y: [<num>, <num>], z: [<num>, <num>] }. If no nodes are found, returns null. Accepts an optional argument to define a custom node filter: node => <boolean>, which should return a truthy value if the node is to be included. This can be useful to calculate the bounding box of a portion of the graph.	✔️	✔️	✔️	✔️
screen2GraphCoords	(x, y[, distance])	Utility method to translate viewport coordinates to the graph domain. Given a pair of x,y screen coordinates, and optionally distance from camera for 3D mode, returns the current equivalent {x, y (, z)} in the domain of graph node coordinates.	✔️	✔️
graph2ScreenCoords	(x, y[, z])	Utility method to translate node coordinates to the viewport domain. Given a set of x,y(,z) graph coordinates, returns the current equivalent {x, y} in viewport coordinates.	✔️	✔️

Input JSON syntax

{
    "nodes": [ 
        { 
          "id": "id1",
          "name": "name1",
          "val": 1 
        },
        { 
          "id": "id2",
          "name": "name2",
          "val": 10 
        },
        ...
    ],
    "links": [
        {
            "source": "id1",
            "target": "id2"
        },
        ...
    ]
}