项目作者: izzortsi

项目描述 :
geometric graphs based on a Hertzsprung–Russell diagram and their corresponding persistent homology graph families
高级语言: Jupyter Notebook
项目地址: git://github.com/izzortsi/hr-graphs-ph.git
创建时间: 2020-02-10T03:39:10Z
项目社区:https://github.com/izzortsi/hr-graphs-ph

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hr-graphs-ph

geometric graphs based on a Hertzsprung–Russell diagram and their corresponding persistent homology graph families


an HR diagram (which is obtainable from this):

hr diagram

by constructing a geometric graph using the original HR diagram, while still helding the points fixed, we obtain the following:

hr_diagram2

if we now let loose of the points’ coordinates and let adjacency between vertices guide the layout (using this) of the graph we obtain one of what we call its corresponding “HR graph”, for a suitable distance threshold:

hr graph1

for different such thresholds:
hr graph2

and

hr graph3

and

hr graph4

finally, by varying this threshold we obtain a sequence of graphs for different spatial resolutions (see persistent homology), yielding the following animation:

hr ph gif