Good example of someone making nice visuals to show what's happening in their sim?

[Mike Helsel]

Hey All, 

Just wondering if folks know or have a good example of a SIMPY process or scenario that's well visualized in a notebook. Started using the library just a week ago and haven't found anything yet that is great at showing what's going on. 

Thanks,

Mike

[is...@oakland.edu]

I did a few Jupyter notebook based blog posts on some basic hospital patient flow modeling using SimPy. One post covers a non-OO process focused approach and the other an OO approach. The notebooks are downloadable from one of my Github repos.

http://hselab.org/simpy-getting-started-patient-flow-modeling.html

http://hselab.org/simpy-first-oo-patflow-model.html

Mark

[Richard Tabassi]

I use go.js, something like this example is pretty good https://gojs.net/latest/samples/processFlow.html or https://gojs.net/latest/samples/productionProcess.html

The code is pretty straight forward, you mostly need to wrap your output into a suitable json format. You could yield and push to the front end to get the effect you want, or set up an endpoint API and pull at a certain rate to update.  I usually use an Ajax call to an API then update with the json. 

They have a ton of examples and you can pretty easily layer in nearly anything you can think of.

Rich

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[is...@oakland.edu]

Ah, I see I misinterpreted the question. Thanks for sharing the go.js idea. Very cool. Would you happen to have a shareable SimPy + go.js example?

[Mike Helsel]

Thanks, the challenge that I am having is bringing folks from a wide set of backgrounds to a common baseline understanding of a problem. My thought is that by showing more transparently different parts of a simulation visually, wherever possible, even if its representative, will make some progress in making sure folks have better base level understanding. 

[Michael Gibbs]

check out my posts of agent based pandemic simulation,

It has a simply pie chart of who is infected.

the trick is you really need two threads, one for the simulation and one for the graphics

It also helps if you put the simulation in loop and advance it one time tick at a time to ensure it releases all resources shared between the threads