In the introductory post we first looked at a simple turtle graphics engine for AutoCAD, which was followed up by this series looking at using it to generate fractals (here are parts 1 & 2). This post continues the organic fractal theme, by looking at another fractal found in nature, the humble fern. I found some simple Logo code in a presentation on the web: to fern :size if :size < 4 [stop] fd :size / 25 lt 90 fern :size * .3 rt 90 rt 90 fern :size * .3 lt 90 fern :size * .85 bk :size /…

This series start with this initial post, where we looked at an implementation of a simple turtle graphics engine inside AutoCAD, and followed on with this previous post, where we refined the engine and looked at how we could use it to generate complex fractals with relatively little code. In this post we take a further look at fractal generation using the turtle graphic engine, with the particular focus on introducing randomness to generate more realistic, organic forms. On a side note, fractals and the use of randomness in design are two of my favourite topics, so this post is…

This topic started in this recent post, where I introduced a simple turtle graphics engine for AutoCAD implemented in C#. My eventual aim is still to implement a subset of the Logo programming language in F#, calling through to this C# engine, but for now I've been side-tracked: I'm simply having too much fun with the engine itself and exploring the possibilities of turtle graphics inside AutoCAD - especially around the use of recursive algorithms to generate fractals. This post and the next (and maybe more, depending on how much fun I continue to have) will be devoted to recursive…