T * sin (t) ≈ Christmas tree

Someone also reimplemented it in Mathematica

http://community.wolfram.com/groups/-/m/t/175891

This reminds me of when I first started programming in Turbo Pascal. I made a Christmas tree using graphic mode and trig functions. I also only used if-then statements so i ended up with about a thousand lines :) Looking at this more elegant tree reminds me of why I went into this career.

Quick reimplementation in the desmos graphing calculator: https://www.desmos.com/calculator/brjshfkaof

Press play next to t_0 to animate.

Original reddit post: http://www.reddit.com/r/programming/comments/1tswai/t_sin_t_...

It seems awfully appropriate 'starring' this repository.

I really like the simplicity.

Can you reverse the direction of one of the spirals?

Or maybe slow down one to half-speed?

(Maybe it would look better, maybe not.)

Same formula on Quake's Railgun

Extra credit to anyone who can implement this in HTML/CSS without using the canvas element. Since CSS transformations are hardware accelerated, I bet it can be made to look as smooth as the reference GIF.

with dynamic alpha, and mouse orient around x-axis: http://jsfiddle.net/rYa5d/1/

Yet another entry. The Christmas tree in Tao Presentations is less than 30 lines of code, with a star at the top and blinking lights. Code here: http://www.taodyne.com/shop/dev/en/blog/275-a-christmas-tree....

Yeah it's a helix.

Oh god staring at this just motivates me to work. Thanks a lot for sharing, as well as all the commenters showing the different implementations of it.

Link to github.io page for the lazy: http://anvaka.github.io/atree/

May I suggest t * sin( k * ln(t) ), for some constant k? That makes the path self similar about the (0, 0) point. Maybe you'd like that.

Very merry cleverness

Very nice and not complicated at all -- good work!

Really like that - beautiful and elegant.

Thanks for sharing!

Nice job