Does anyone know of a way to specify the base bubble size all bubbles should be drawn relative to? I want to specify a base size so that as bubbles are added/removed from the chart, the bubbles do not change size. For example: I am using the bubble chart to display historical data. As I move through history, I want to see the size of the bubble change, but not relative to the other bubble sizes in the chart but relative to some base value.

Thanks for posting.

It would be great if this functionality could be provided.

I don't know how bubble size is currently determined, but I am guessing you have a maximum bubble size, say 100px, and then all bubbles are drawn relative to this max bubble pixel size based on on the each bubble's size as compared to the largest bubble size. Seems like you could provide an option for maximumRadius when building the chart, and then scale all bubbles relative to this "base size":

Specify maximumRadius: 10
Largest bubble size in jqchart = 100px (for example), so any bubble with a radius of 10 would be drawn at 100px

Date1

Radii:
1, 3, 5, 7

Size:
(1/10)*100 = 10px, (3/10)*100 = 30px, (5/10)*100 = 50px, (7/10)*100 =70px


Date2:

Radii:
2, 3, 6, 10

Size:
(2/10)*100 = 20px, (3/10)*100 = 30px, (6/10)*100 = 60px, (10/10)*100 = 100px

If that made any sense at all.

That way, when you toggle from Date1 to Date2, the bubbles change size relative to a base size rather than change size relative to the largest and smallest bubble on the chart (if that is your current logic).