https://github.com/blalop/bodies

N-body simulation
https://github.com/blalop/bodies

nbody simulation

Last synced: 13 days ago
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N-body simulation

• Host: GitHub
• URL: https://github.com/blalop/bodies
• Owner: blalop
• License: mit
• Created: 2018-10-19T18:09:38.000Z (over 6 years ago)
• Default Branch: master
• Last Pushed: 2019-07-28T18:54:41.000Z (over 5 years ago)
• Last Synced: 2024-12-13T03:30:16.506Z (2 months ago)
• Topics: nbody, simulation
• Language: C++
• Homepage:
• Size: 1.48 MB
• Stars: 2
• Watchers: 0
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# n-body

![Screenshot](screenshot.png)

A N-Body simulation.

This repo contains my Bachelor's thesis.

It has three configurations:

* brute: brute force method

* bhtree: tree based method

* parallel: tree based method (parallel)

## Dependencies

* Qt 5.

* C++11 onwards

## Instructions

```

qmake

make

bin/nbody configuration [iterations] [trace]

```

## Inputs

Input must come in a file format, in which the first line indicates the number of bodies and the second the radius of the universe.

From the third line, each line represents a body, with the parameters as follows:

```

mass posx posy velx vly

```

The program reads the input file from the standard input.

### Provided inputs

`10k.txt`: 10000 bodies orbiting in an elliptical way.

`10k.txt`: 20000 bodies orbiting in an elliptical way.

`30k.txt`: 30000 bodies orbiting in an elliptical way.

`asteroids.txt`: 1000 asteroids orbiting around a star.

`cluster.txt`: A 2500 particle cloud.

`collapse.txt`: A 2500 particle cloud collapses into a galaxy.

`dual.txt`: Two galaxies orbiting each other.

`galaxy.txt`: A galaxy moving through space.

`merge.txt`: Four 1000 particles collapse.

`planets.txt`: A star system composed by 4 planets.

`saturn.txt`: Saturn rings.

`spiral.txt`: A round galaxy becomes a spiral one.

Credits of the input files to Adam Chin and Rohan Kapadia.