If I am plotting a line graph, with just straight line segments between each point, can I control the symbol used for each point (e.g. to have a circle for some points and a square for others)? How do I do this? What do I need to put in my JSON data? My use case is that I am displaying data about a series of events against a date axis, The events come in two types. I would like all of the events to be on one line, but events of type 1 to be marked with a circle, and events of type 2 to be marked with a square.
Thanks - Rowan