Flutter Force Directed Graph

Flutter Force Directed Graph is a high-performance, customizable Flutter package that helps you create force directed graph visualizations in your Flutter applications.

Features

• Create a force directed graph with customizable nodes and edges.
• Add, remove or update nodes and edges dynamically.
• Use the provided ForceDirectedGraphWidget for easy integration into your app.
• Built-in gesture detection for nodes, edges and graph panning and zooming.
• Comes with a ForceDirectedGraphController for easy management of the graph’s state.

Demo

Getting Started

Installation

Add the following in your pubspec.yaml file under dependencies:

dependencies:
flutter_force_directed_graph: ^1.0.6

Then install it by running flutter pub get in your terminal.

Usage

Here’s a basic example on how to use the ForceDirectedGraphWidget and ForceDirectedGraphController.

import'package:flutter_force_directed_graph/flutter_force_directed_graph.dart';
ForceDirectedGraphController<int> controller =ForceDirectedGraphController();
final fdgWidget =ForceDirectedGraphWidget(
controller: controller,
onDraggingStart: (data) {
print('Dragging started on node $data');
},
onDraggingEnd: (data) {
print('Dragging ended on node $data');
},
onDraggingUpdate: (data) {
print('Dragging updated on node $data');
},
nodesBuilder: (context, data) {
returnContainer(
width:24,
height:24,
alignment:Alignment.center,
color:Colors.red,
child:Text('$data'),
);
},
edgesBuilder: (context, a, b, distance) {
returnContainer(
width: distance,
height:16,
color:Colors.blue,
alignment:Alignment.center,
child:Text('$a <-> $b'),
);
},
);

For a more detailed example, please view the example directory in this repository. This example includes additional features and gesture support.

Contributing

We welcome contributions! If you find a bug or want a feature that isn't yet implemented, feel free to open an issue. If you want to contribute code, feel free to open a PR.

If you have any questions or need further guidance, please open an issue and we'll be glad to help out.

License

This project is licensed under the BSD 3-Clause License - see the LICENSE file for details.