Seven month studying Ruby and three month learning SketchUp API documentation (and four years on learning English ) — that’s what I needed to make my the first own extension for SketchUp.
The extension does an easy thing: it replaces edges by dotted lines and saves your time. This video shows a demonstration of its work.
For training purposes I’ve published the source code on Github, were you can explore its and download. I’ll be happy if people look at my code, point to the mistakes and give me some advices.