NTP2
Well-Known Member
It lets you do the stuff that you normally do with a print out eg CP CGI guess I'm confused then. If you're not running new simulations from the mobile device, what does this really give you?
It lets you do the stuff that you normally do with a print out eg CP CGI guess I'm confused then. If you're not running new simulations from the mobile device, what does this really give you?
Or just a picture of the Sim on your mobile phone? Not trying to discourage you from doing a cool project just pointing out that it maybe more work then you're expecting.It lets you do the stuff that you normally do with a print out eg CP CG
If I’m got openrocket then I am cheap and don’t want to spend 400$ on a tablet
I guess I'm confused then. If you're not running new simulations from the mobile device, what does this really give you?
Right, that's what's confusing me. You've already generated the entire data set by running the simulations, so what's accomplished by creating a Python script to extract the data?If you have Open Rocket you're cheap, but $400+ for a phone, no problems....
Seems like just printing the data out would work.
Coulda told you that but just as well for you to discover it on your own.I just looked and it turns out that getting python to run on IOS is NOT easy.
The ORK file is just a zip file, and the XML file is inside.not to mention that when I tried to look at the file to figure out how it works I discovered that it might be encrypted? It looks like a hex editor will be needed and I AM NOT going near that. So I will leave it for someone who knows what they are doing.
I thought you were talking about a different language.Coulda told you that but just as well for you to discover it on your own.
I did not see a way to unzip though?The ORK file is just a zip file, and the XML file is inside.
Change the extension to .zip and unzip it.I thought you were talking about a different language.
I did not see a way to unzip though?
Ok I see but I am still canceling it. I am to stupid for my own goodChange the extension to .zip and unzip it.
So learn a new language?I would but all my experience is with object oriented programming in python.
Which one? I have tried C and a tiny bit of Java script.So learn a new language?
If you're hoping to work on OR, Java.Which one? I have tried C and a tiny bit of Java script.
orhelper ended up needing very little modification to work with current OR. I filed a PR against it with the needed changes a while ago, see here: https://github.com/SilentSys/orhelper/pull/9I believe (although I could be wrong) that many of the internals of OpenRocket have changed in recent versions and OrHelper may no longer work. If I restarted this I'd keep the same infrastructure but look at other options for scripting OpenRocket on the backend (potentially by working with OpenRocket teams to create a commands line interface) and probably use FastAPI for the backend.
How about just exporting the sim data to a .xls or .csv?My plan is to start from scratch and make a python script that runs on a phone that pulls all the sim data from a .ork file.
Note that OR can already export to .csvHow about just exporting the sim data to a .xls or .csv?
Or a Chromebook for under $150. That's what I use at the field. OR works fine on it.The most simple answer is to invest in a Windows-based tablet. The MS Surface Go 3 can be had new for as little as $399. I use mine as a nightly e-reader, as well as a browser and it has no issues running RockSim at the field. I assume Open Rocket would run just as well.
I agree with that, sorry about the lawn dart. Been there, done that.The only reason I can think of to run sims in the field is if you need to use a motor you have not run the sim for and need to select a delay. Had that happen at the June launch in Dalzell, SC. Didn't have OR to run the sim and the first delay ended up putting my FiberMax nose-first in the dirt, 'cause the delay was too long.
Of course, now I'm running electronics on most of my rockets, so don't need to.
I was trying to re-certify L1 and had folks donating motors to help.I agree with that, sorry about the lawn dart. Been there, done that.
I'm thinking that if anyone has sims or actual data of previous flights (you can't be a rocket scientist if you don't take notes!) and the delay times that worked or what the needed adjustments were, they should be able to estimate the altitude on that new motor and what delay time they need very accurately, at least as accurate as a delay setting will get. It may take more work and math then just running a sim, but if they're using actual flight data, a manually calculated estimate should be more accurate than a sim since they are using actual flight data.
Again, why is anyone using a motor they didn't do a sim on before they left home? Something they picked up from the local vendor? Maybe they should take the motor home and fly it at the next launch after they've done a sim and determined the delay needed.
Notes make it too much like work!you can't be a rocket scientist if you don't take notes!
... you can't be a rocket scientist if you don't take notes!) ...
I use electronic deployment for pretty much everything these days. It's freeing to not need to think about delays at all. Just grab a motor with enough thrust, put it in a rocket and let her rip.From this point onwards, it's electronic deployment.
I adjust the drag to make previous flight sims come out right. That makes for very accurate projections for future flights.I agree with that, sorry about the lawn dart. Been there, done that.
I'm thinking that if anyone has sims or actual data of previous flights (you can't be a rocket scientist if you don't take notes!) and the delay times that worked or what the needed adjustments were, they should be able to estimate the altitude on that new motor and what delay time they need very accurately, at least as accurate as a delay setting will get. It may take more work and math then just running a sim, but if they're using actual flight data, a manually calculated estimate should be more accurate than a sim since they are using actual flight data.
Again, why is anyone using a motor they didn't do a sim on before they left home? Something they picked up from the local vendor? Maybe they should take the motor home and fly it at the next launch after they've done a sim and determined the delay needed.
...and this is something that someone could theoretically do at the field, after first flight.I adjust the drag to make previous flight sims come out right. That makes for very accurate projections for future flights.
I'm definitely not against the idea of a functional version of OR for the phone. Just struggling with the approach that was presented here....and this is something that someone could theoretically do at the field, after first flight.
I don't comprehend why some folks are reflexively arguing against the idea of mobile OR. It would be nice to have. Of course it is possible to live without it, and it is not *essential*, but it would be nice. And if I had my druthers it would be full functionality. Fiddling with designs is fun, I'd love to be able to do it when I'm out and about and bored, or when I'm on vacation only with an iPad but not a proper computer.
I mean, it's not gonna happen any time soon, but why wouldn't we want it if we could get it?
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