How should the code look like?
— Carlo Zapponi
The first chart library I used (almost 15 years ago) was jpgraph for PHP, then after too much customization of its code, I decided it was time to create my library. I did it with ActionScript and Flash, it was called Atomicharts, it was doing few things: line charts, area charts, and bar charts. I truly enjoyed the experience of putting together the library.