Document of PurpleMicroStar.MultiBody

Introduction

Available Classes and Functions:

class PurpleMicroStar.MultiBody.MultiBody():

Buid a cluster of planets, allow they evolution via time and store their Astrophysics properties

Parameter:

• manybody: a list of Starbody Objects(StarBody, please see PurpleMicroStar.StarBody)

Optional operation:

• You can build your new cluster via Dataset(), more information please refer to function Dataset()
• And you can rebuild your former cluster stored in some files, more information please refer to function Rebuild()

Available functions:

Iteration(): Calculate all planets' motion properties, as well as their body properties, then save them into files

Parameters:

• dt: the time period per motion used
• iterCount: the iteration times of dt

Return:

• Pos_curve: The position information of every planet in every iterated time, in the form of nparray [[[p1_t1],[p2_t1],[p3_t1]], [[p1_t2],[p2_t2],[p3_t2]],...],shape=(iter,body_num,3)
• Vel_curve: The velocity information of every planet in every iterated time, in the form of nparray [[[v1_t1],[v2_t1],[v3_t1]], [[v1_t2],[v2_t2],[v3_t2]],...]

Dataset(): Load MultiBody From Given formated Dataset .csv file

Parameters:

• datapath: the .csv data root path of planets' basic data
• datasep: the seperation of every information

Columns' name:

• Name,x,y,z,vx,vy,vz,Mass,Radius,Spinx,Spiny,Spinz
• If you don't obey this rule, the result may boom

Return:

• The list of Object Starbody

Rebuild(): Rebuild your planet cluster using data files saved by Iteration(), make sure you haven't changed anything of these data, you just need to find the cooresponding filenames

Parameters:

• body: the $body_Rebuild.csv path
• position: the $Position.csv path
• Velocity: the $Velocity.csv path

Return:

• The list of position curve data, The list of the velocity curve data, The list of Object StarBody

Plot(): Plot the motion curve of Multibodies

Author: Airscker/Yufeng Wang

License: GPL-3.0 License

We go on util we go wrong, then we keep on util we are right.