A simple tap of the screen invokes a staggering amount of calculations. That screen is actually big tree of UI elements, and we need to navigate it quickly to find the right […]
A game of what’d they press? Hit testing in a 2d/3d layout
The bitwise complement, or not operator, is unsafe
I came upon a problem with bitwise complement (logical not): it isn’t safe. It’s nothing new, but it really registered while implementing the logical operations in Leaf. The issue is the result […]
Stuffing curves into boxes: calculating the bounds
Now that we’ve drawn beziers and arcs there’s only one piece missing in the vector API. We need to calculate the bounds of the curve: the minimum/maximum points where it will draw. […]
Rendering an SVG elliptical arc as bezier curves
I needed to draw ellipses and arcs. A vector API just wouldn’t be complete without them. Though opinions seem to differ as Apple’s Core Graphics lacks anything but an axis aligned circular […]
Porting Leaf from Linux to OSX
I recently ported Leaf from Linux to OSX. I figured it was about time to start making it cross-platform. The goal is to get it compiling useful libraries for iOS and Android […]
The smooth sexy curves of a bezier spline
I’ve been dreaming and coding curves lately. They play an integral role in a vector drawing API, which I’m writing for Fuse now. “Bezier curves” are so common we might think it’s […]
Ride the carousel of folly with a Python migration
I wanted to migrate my shelljob module from Python 2 to 3. I use this as part of the Leaf unit test setup. What I thought would be relatively straight forward has […]
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