Introduction
This project is the Python implementation of Brad Smith's article on A Forced-Directed Diagram Layout Algorithm. There were a few bumps on the road to get Brad's code manually converted from a Microsoft graphics platform to a pseudo-platform independent platform like wxPython running on Mac OS. I will not go into detail on what those bumps were. But I want to make sure and document those here.
Details
Install in your virtual environment
pip install pyforcedirectedlayout
Configuration details
These drive the algorithm
| Parameter | Default Value | Description |
|---|---|---|
| damping | 0.1 | Value between 0 and 1 that slows the motion of the nodes during layout. |
| springLength | 100 | Value in pixels representing the length of the imaginary springs that run along the connectors. |
| maxIterations | 500 | Maximum number of iterations before the algorithm terminates |
| attractionForce | 0.1 | The spring value |
| repulsionForce | 10000 | The repulsion value |
Randomize the layout
| Parameter | Default Value | Description |
|---|---|---|
| minPoint | Point(x=10, y=10) | |
| maxPoint | Point(x=60, y=60) |
Early Termination
| Parameter | Default Value | Description |
|---|---|---|
| minimumTotalDisplacement | 10 | |
| stopCount | 15 | Stop execution after this many number of iterations where the totalDisplacement is less that minimumTotalDisplacement |
Developer Notes
This project uses buildlackey for day-to-day development builds
Note
For all kinds of problems, requests, enhancements, bug reports, etc., drop me an e-mail. Written by Humberto A. Sanchez II ©2026
1 maintainer
Metadata
1 maintainer
Release files for pyforcedirectedlayout 2.2.0
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| File | Interpreter | ABI | Platform | Reset |
|---|---|---|---|---|
| pyforcedirectedlayout-2.2.0-py3-none-any.whl | Python 3 | none | any | Details |
Total release size: 56.6 kB
Release files / pyforcedirectedlayout-2.2.0.tar.gz
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