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Skateboard Tricks and Topological Flips

arxiv.org

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Re: Skateboard Tricks and Topological Flips

#41

Post by rbrtdrmpc- »

fokinsean wrote: post #37
eunoia wrote: post #34

Earlier quoted context omitted.

Ah don't forget the same variation of foolery that comes around if you 180 into a grind. What most people would call a nose grind or 5-0 is inverted if you 180'd into it. > And remember, never carry your board by your truck :) I miss skateboarding :). My ankles don't though.

Ah yes! and One of my other favorites: On circle rails there is "no such thing" as fs overcrook, just fs nosegrind, and there is no such thing as bs nosegrind, but there is bs overcrook. At least that's how magazines seem to classify it.

that invalidates my deep faith for the suski grind, this is unacceptable Lemongrab screaming

Re: Skateboard Tricks and Topological Flips

#42

Post by fokinsean »

psychomugs wrote: post #30
rawling wrote: post #24

> As a last example we will describe the hardflip. This is a simultaneous half kickflip (a 180 degree rotation about the axis joining the tail to the nose of the skateboard) and a 180 degree rotation about the x-axis in the right-hand orientation. Is it? Isn't a hardflip just a mirror of the varial kickflip they describe, and rotation around their x-axis something else entirely?

Varial kickflip = 180 backside shuvit + kickflip Hardflip = 180 frontside shuvit + kickflip The hardflip is unique in that it has two main variations. One is the end-over-end style that I think they're describing, where the board only does half a kickflip. The other is "flatter," and explicitly a 180 shuvit with a complete kickflip. In practice the end-over-end style is much more common, easier to perform, and nicer…

You can also steez fs flips like this as well, aka the Muska flip

Re: Skateboard Tricks and Topological Flips

#44

Post by fokinsean »

rbrtdrmpc- wrote: post #41
fokinsean wrote: post #37

Earlier quoted context omitted.

Ah yes! and One of my other favorites: On circle rails there is "no such thing" as fs overcrook, just fs nosegrind, and there is no such thing as bs nosegrind, but there is bs overcrook. At least that's how magazines seem to classify it.

that invalidates my deep faith for the suski grind, this is unacceptable Lemongrab screaming

Haha Suskis are still valid. They've grown on me over the years, especially when pinched on a ledge.

Re: Skateboard Tricks and Topological Flips

#45

Post by jwilber »

fokinsean wrote: post #37
eunoia wrote: post #34

Earlier quoted context omitted.

Ah don't forget the same variation of foolery that comes around if you 180 into a grind. What most people would call a nose grind or 5-0 is inverted if you 180'd into it. > And remember, never carry your board by your truck :) I miss skateboarding :). My ankles don't though.

Ah yes! and One of my other favorites: On circle rails there is "no such thing" as fs overcrook, just fs nosegrind, and there is no such thing as bs nosegrind, but there is bs overcrook. At least that's how magazines seem to classify it.

And these are just for street! Transition has its own set of weird names (losi, andrecht, g-pivot, etc.), including some slight street overlaps (varial, pivot, etc.).

I have a little passion project where we log pro’s tricks and interview them called 4ply[0]. The naming convention is something we always have to get right to make the logged data at all useable. I actually grew up skating with Erick Winkowski but can’t do an article on him because he does so esoteric transition tricks and we can’t name them all (or find someone who can).

[0] http://4plymag.com/

Re: Skateboard Tricks and Topological Flips

#46

Post by 5cott0 »

fokinsean wrote: post #32

Here's a fun one to debate with your skate friends, nollie and fakie tricks are "swapped". For example: - nollie fs 180 and fakie fs 180 (fs half cab) are two different directions: nollie fs 180 is in front of you and fakie fs 180 is behind you going blind - nollie 5-0 and fakie 5-0 (fakie switch nosegrind) lean differently on the grind: nollie 5-0 you pop off your nose and land on your back truck, fakie 5-0 you pop…

therefore by induction a nollie fs 180 is not a half cab∎

Re: Skateboard Tricks and Topological Flips

#48

Post by fokinsean »

jwilber wrote: post #45
fokinsean wrote: post #37

Earlier quoted context omitted.

Ah yes! and One of my other favorites: On circle rails there is "no such thing" as fs overcrook, just fs nosegrind, and there is no such thing as bs nosegrind, but there is bs overcrook. At least that's how magazines seem to classify it.

And these are just for street! Transition has its own set of weird names (losi, andrecht, g-pivot, etc.), including some slight street overlaps (varial, pivot, etc.). I have a little passion project where we log pro’s tricks and interview them called 4ply[0]. The naming convention is something we always have to get right to make the logged data at all useable. I actually grew up skating with Erick Winkowski but can’t…

That's awesome! The site seems down for now but I'll check again later.

Also I'll go ahead and plug the site I'm helping rebuild.

https://skatevideo.site

Re: Skateboard Tricks and Topological Flips

#49

Post by psychomugs »

joncrane wrote: post #11
RhysU wrote: post #2

The end of the paper points to https://github.com/holomorpheus/topological-flips

I tried cloning it and running it but I'm missing a module; there is no requirements.txt either. :(

Generated a requirements.txt here: https://gist.github.com/psychomugs/e0e298e1f82a271ef3e9eedbb...

Re: Skateboard Tricks and Topological Flips

#50

Post by jwilber »

fokinsean wrote: post #48
jwilber wrote: post #45

Earlier quoted context omitted.

And these are just for street! Transition has its own set of weird names (losi, andrecht, g-pivot, etc.), including some slight street overlaps (varial, pivot, etc.). I have a little passion project where we log pro’s tricks and interview them called 4ply[0]. The naming convention is something we always have to get right to make the logged data at all useable. I actually grew up skating with Erick Winkowski but can’t…

That's awesome! The site seems down for now but I'll check again later. Also I'll go ahead and plug the site I'm helping rebuild. https://skatevideo.site

Yo! That’s awesome you’re working o skatevideosite! O just read your guys interview on Jenkem [0]. I used your old data years back for an article for The Pudding [1] years ago - invaluable resource. Growing up I would spend so much time on the site just finding music and skaters. If there’s an issue board or something please plug it, would love to contribute!

[0] https://www.jenkemmag.com/home/2021/08/16/meet-minds-behind-... [1] https://pudding.cool/2018/06/skate-music/

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