Galaxy model

A function to compute and display a galaxy point cloud (spiral or elliptic), with some tunable parameters (shape, number of arms, etc...)
89 Downloads
Updated Tue, 18 Aug 2020 06:42:11 +0000

Design your own galaxy ! :-)

For pedagogic / scientific diffusion purposes. Is not a rigorous astrophysical model.

F5 in galaxy_model.m or galaxy_model; in console to run the program and plot the figure.

A lot of parameters -curvature, number of arms, number of stars and many others- are available in the file header to tune the shape of the model.

Since these parameters are quite sensitive, my advice is to first test them individually -one by one- to understand their influence.

For some out of range parameter values, you may encounter this warning in Matlab console :

> Warning: Using only the real component of complex data.
> In getRealData (line 52)
> In scatter3 (line 59)
> In spiral_galaxy_model (line 115)

In this kind of case, just go back to some reference example parameter set, and do again your parameter tuning, one by one.

Questions, support, feedback : nicolas.douillet (at) free.fr

Cite As

Nicolas Douillet (2024). Galaxy model (https://github.com/NicolasDouillet/galaxy_model/releases/tag/v2.6), GitHub. Retrieved .

MATLAB Release Compatibility
Created with R2019b
Compatible with any release
Platform Compatibility
Windows macOS Linux

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!
Version Published Release Notes
2.6

See release notes for this release on GitHub: https://github.com/NicolasDouillet/galaxy_model/releases/tag/v2.6

2.5

Added one parameter set example for elliptic galaxy type

2.4

Updated file name in description

2.3

Fixed colormap figure bug

2.2

Name, cover img, typo

2.1

Profile view option + typo

2.0

Model improvement with some extra parameters (distribution, Markers, colors, etc), profile view, parameter set examples, description.

1.0.0

To view or report issues in this GitHub add-on, visit the GitHub Repository.
To view or report issues in this GitHub add-on, visit the GitHub Repository.