Just a quick update to my previous wheel factorization code. I found a better way to implement the wheel factorization code which doesn't use bit masks to sieve out values. This version has a decent performance boost, and I think is easier to implement.
Tuesday, June 25, 2013
Tuesday, June 18, 2013
Time to have more fun with prime numbers! I've made a few updates to my sieving code making it faster and more robust. I've also worked through a basic wheel-factorization implementation, which had reasonable performance benefits.
Tuesday, June 11, 2013
In my last post I had implemented viewport rotations, and I had assumed that I had fixed the problem with nested SVG elements. Unfortunately, as I started working on a "quad" viewport demo, I realized there were some problems with my assumptions about how SVG establishes new viewports. In short, I had to devise a new way to get the transformation matrix of an individual element.
Tuesday, June 4, 2013
This is a sample of how to rotate a SVG viewport using matrix transformations. There are two methods I explored. They basically are implemented near-identically, but operate somewhat differently. I'm also going to explore some slight changes to my previous implementation which made a few assumptions about the SVG DOM state.