Venn Diagram (Spoiler: Quaternions)

I fig­ure all geek blogs need some sort of Venn dia­gram to illus­trate some super insight­ful facts of life, so I decid­ed to go meta and do one about my inter­ests blog.

So I’m pret­ty sure I haven’t blogged about quater­nions yet, so here goes: god damn quater­nions.

Also, no blood for Euler. I’m no hip­pie, but we need to reduce our depen­dence on Euler angles and move on to a more mod­ern, sus­tain­able rep­re­sen­ta­tion of ori­en­ta­tion with no sin­gu­lar­i­ties. I’m not will­ing to send off our young men and wom­en to die just to pre­serve your lazy, deca­dent way of deter­min­ing atti­tude.

Here’s a sneak pre­view of what I’m doing the­se days (besides every­thing else):

It’s a real­ly sim­ple sim­u­la­tion frame­work for non­lin­ear recur­sive esti­ma­tion fil­ters for atti­tude deter­mi­na­tion. Like “dynam­i­cal­ly-com­piled ras­ter­iz­ing soft­ware ren­der­er,” this doesn’t actu­al­ly mean any­thing, but I’m still look­ing for a good acronym. If I throw in “ori­en­ta­tion,” I get enough let­ters for “NOFEAR,” but “non­lin­ear ori­en­ta­tion fil­ter esti­ma­tion atti­tude recur­sive” makes no sense.

By the way, the screen­shot above looks crap­py because I made it look crap­py; I want­ed to post a sec­ond screen­shot lat­er and claim that I made mad improve­ments to the visu­al­iz­er. It actu­al­ly looked pret­ty decent pri­or to the lo-fi’ing:

Yeah, so I just failed at lying for fun and prof­it. Oh well. Though I real­ly do need a bet­ter mod­el for ori­en­ta­tion visu­al­iza­tion than the Ohio water­spout1

I’ve got a big pset due in 8 hours and an exam in 6 hours, so I guess I bet­ter stop write-cras­ti­nat­ing.

God damn quater­nions. ♥

  1. Cred­it to my friend TH for the name []