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 Custom Aftermarket Blinkenlights
 How to Speak NeoPixel
 Spooky nulls in an ArrayList
 A Gentleman’s Orthonormal Basis Rotation
 Iterating Over a Triangulation in Java
 SNES Classic Teardown
 8Bitdo SN30 Teardown and Critique
 Rendering Twisty Thingies
 How Sensitive To Magnets Is Video Tape?
 Quick and Easy Gaussian Random Numbers
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Tag Archives: computing
Spooky nulls in an ArrayList
I had a crash reported for one of my Android applications. Thankfully that includes a stack trace, because I would never have found this bug without it. I learned something new about concurrently accessing an ArrayList.
A Gentleman’s Orthonormal Basis Rotation
So you need to draw curved and bent pipetubethings. You can make a straight section with two rings of points; just orient one ring like so, the other ring like so, and draw triangles between them. For a curve, just … Continue reading
Iterating Over a Triangulation in Java
Say you’ve got some points in a plane, and you’re fixin’ to triangulate them. Specifically, you’re going to generate the Delaunay triangulation with an incremental algorithm, and then of course you’re going to want the triangles and/or segments. Now say … Continue reading
Rendering Twisty Thingies
I’ve got a program called Twist Flux. It features an array of twisty, bendy… thingies. I found a way to render twisty shapes which appear to have volume without going so far as to use 3D models of twisted rods.
Quick and Easy Gaussian Random Numbers
Generating random numbers which fit a normal distribution is essential for stochastic optimization, especially for continuous evolutionary algorithms. For highquality results the weapon of choice is the Boxâ€“Muller transform. It’s a little expensive; it involves exponents and trigonometry and such. … Continue reading