Tinkering With Spirographs in C++
ฝัง
- เผยแพร่เมื่อ 29 มิ.ย. 2024
- In this video I use the fantastic pgetinker.com to build a simple interactive model of a favourite childhood toy - the spirograph.
Play with it here: pgetinker.com/s/OWNuhyU8IgX
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![เจอประจำ ตอน เปิดเทอมวันแรก [EP.29]](http://i.ytimg.com/vi/eFK-B836i60/mqdefault.jpg)
Massive thanks to Moros1138 and his fantastic PGEtinker project. It's been a passion project of his for a while and its just brilliant - please give it a go at pgetinker.com, or indeed, play with the video code right now: pgetinker.com/s/OWNuhyU8IgX
Excellent video. Thank you so much! PGEtinker has been a passion project of mine and seeing it actually being used has been an emotional experience. So exciting!
@@moros1138 I hope you feel a great sense of pride! You've really create something quite special 🙂
@@sakikogookheng Thank you very much!
I solved this problem many years ago (~2000), wrote a spirograph in BASIC for the UKNTS(УКНЦ), but there was no access to a computer, the program was written on paper. In 2004, I got a 486DX2-66, and I was finally able to run this program on QBASIC, and then rewrote it in Turbopascal. And then, already in our time, I rewrote it in UASM and OpenGL. In general, the task is not too difficult to learn.
Amazing, just played with it !
Pen being outside the wheel breaks physics, no man has seen (but this one has). I did this simulation very slowly back in 1971, but only had a flat bed plotter and Dec PDP10 basic to play with, so it was quite slow. I did do a few colours. I just through out the old faded 2 or 3 foot plots I had tucked away a couple months ago.
The math around the spirographs I could see being useful for making little special effects or other sorts of fun mezmerizing things in a game. For example, in those vampire-survivor type games where you have lots of little weapons spiraling about hitting things automatically, defining their path in this way would be quite fun to watch.
Hopefully it inspires someone with more application creativity than me lol 😂
My Spirograph from the early 70s had a piece of cardboard and little push pins to hold the paper/outer gears (mine has two - yes, I still have it) and about ten smaller inner gears. I also have a Spirotot which was small and was a frame with self piercing paper holders and the frame contained the main/outer wheel and instead of gears used inner wheels (yes, still have it too). I also have my Mechanograph which allowed a user to pin paper and inner wheels and shapes to cardboard and use the wheels and shapes to draw around the inner shapes. There was one shape that was a human shape.
I wear a Casio F-91W. I love how simple they are. I am also impressed at how accurate it is. It stays within a couple of seconds from my computer clock for months. It is far more accurate than any other electronic clock I have (that isn't synced to a time source of course).
I check your videos time to time and find inspiration. Your projects are always so interesting olc!
Amazing video! I also find spirographs quite mesmerizing. In this scenario, where we have two circles, and one rolls around the other without slipping, the `ratio` calculation has to be corrected by subtracting 1.0f from it.
End result was very pretty. Nice video. I do question why vacations weren’t as fun at night though 😂
Although I am sure there was a bit of comic effect going on there, I can say from experience that going on holiday with young kids, if you are fairly sensible parents, means you can forget about going out in the evening or anything like that, your kid/s is/are hopefully in bed by 8 or 9 at the latest but then you have all evening to kill, and then at least one of you is too knackered for Rummy or Old Maid and so programming Spirograph in C++ it is.
That would honestly make a killer screen saver.
Awesome video, a beautifully broken down solution!
Thanks for sharing this with us!
love your videos, keep it up!! hope you had a lovely holiday
Thanks, I did!
The video was amazing! And I love your shirt :)
Now I want to make a spirograph
That’s fine. I can’t help but think your entire time on TH-cam was a lead up to this. It’s a shame it’s out of reach for the Lynx, and I’ll have to revisit on the next platform!😅
If you could decrease the size of the inner circle on every iteration, I could imagine you could draw spirals.
Great idea! Go and edit the tinker and see what happens!
Just at the end with the last circle and the colour changing, I was reminded of the Captain Blood "Hyperspace, activated".
I had to look up the reference, but see what you mean!
I was indeed annoyed by you stoping the rainbow too soon.
Neat! I remember being fascinated with spirographs as a kid
Nice video! This reminds me of the flight patterns used by enemies in Galaga
Nice graph, but the pen motion looks off and the code is indeed slightly mistaken. Around 15:00 the curve briefly shows retrograde motion when the pen is close to the ring gear when it obviously shouldn't. The error is in the ratio. The circumferences ratio is used, but that is not the ratio of angular velocities. That should equal
ratio = Rfixed / Rmoving - 1
because the moving wheel is also making one full rotation inside the fixed wheel.
This is easy to see when for instance Rfixed = ½Rmoving, then the inner wheel makes one anticlockwise rotation, not two, when it circles around once clockwise. Or, when Rmoving = Rfixed, then the moving wheel should not rotate at all, i.e. ratio=0.
I invite you to try it.
Otherwise pretty nevertheless!
Remined me of this: th-cam.com/video/FUHkTs-Ipfg/w-d-xo.htmlsi=fFqMN_EhEjyD5nNo
Such a fun project, I'll have to implement a Spirograph builder in a future project myself. :)
The worlds smallest house appears to be a 1 x 2 Lego brick :-)
That is awesome!
I see we both wear the most common wristwatch known to man
Reliable, affordable, fashionable. Best watch ever
@@javidx9 It also has a rich history behind it too. Not bad for £10 on Amazon! (when it's on sale)
I smiled when I’ve heard Conwy and not Conway.
Nice job, sir ;)
Very Nice!
Good taste in dodgy shirts 👌
It's a cracker this one!
Omg cant believe you went to Conwy on holiday, I live just down the road, what a small world, were you there for the pirate weekend?
Heh, actually I was staying in Llandudno (of course lol) as I do frequently, primary objectives were to run around the Orme, and family holiday.
Looks great, you should checkout a 'Complex Fourier series'. It provides the math to extend your Spirographs to include more circles, radius, and the spin (delta time) of individual circles. With that techinque you can actually draw pictures in an interesting way.
good job moros!
Hi, I did that long time ago, back to 1994, in GWBasic with mechanic branch Cinematic with vectors and torsors(not tensors), very beautiful.
cool video!
Cheers Manuel!
Neat! 😎
Nice shirt. I have the same one!
Great job, Moros. Respect. Take care.
Is that a metal box it comes in?!
Yes!
10:40 looks like 3d donut
you welcome back
Thanks Motasam :D
Bro can you or someone else around here please give the link the c++ networking series part 5 I really like that one and your other videos as well in part 4 you said that there will be a part 5 but I can't find it in which u will show shooting players, I know it 3 yrs since now but plz
mouses and sheeps have different radiuses
13:45 Your moving gear is 'rotating' too fast because you didn't account for the sidereal effect. If the moving gear is exactly half the fixed gear, it rotates once per revolution (a pen at the edge traces a straight line). If it's 1/3rd, it rotates twice per revolution, etc.
Hey Mr. Try one of those riscv notebooks. They cost like 300 pounds
Hi. I was told that we released a video about the Spirograph at the same time. :) I just modified the Spirograph. I did multiple nesting. sin(x) + d * sin(k * x) + d * d * sin(k * k * x)... It s amazing!
Java script programm:
th-cam.com/video/JcvrrYigqa0/w-d-xo.htmlfeature=shared&t=599
Nice, I watched the video and link to your Github ... HtmlVisualDemo.
Please make a second channel that's just you running this program to create pretty spirographs
how ya doin
Not bad thanks Obin!
Hlw sir....Can u make a window in console without gui which will respond to user on input(I want to learn how framework make a window from scratch)....please........
Grow your beard please
That was a brilliant just brilliant way to show the power of PGETinker, thanks @Javidx9 . Johnnyg63
Very useful! Appreciate it!