I recently carved out some time to correct this situation, and fell into an absolute pit of confusion when I tried to figure out what my options even were. My requirements are that my customers are global, I am UK-based, people will set up a regular subscription, and I don't have (and I think I don't want) a merchant account at this point. I'm not PCI compliant and have no intention ever to attempt that. This post is an attempt to round up some things I found out along the way. Continue reading
Once I got going with them, they were actually pretty straightforward. You can actually add all kinds of markers to your google chart, complete with funky icons and customisable colours! The code I added to make these is simply:
All we have here is a simple specification of which kind of bubbles I want, the label for them and which data series (ds) and data point (dp) to attach it to. I generated the bubble tail directions sensitive to whether they were a min or max label, and which half of the graph they are in.