There are other ways to show transition between bars, for example you may want to use color or shades of a color to show the separation. If you must have a line: my suggestion is to try overlay first. I think you could use the getChartLayoutInterface, and some of it's methods to locate the right-hand or left-hand boundary of your bars, and then draw an overlay at that location.
Although I think overlay is best used when the number of rows is constant, as you must already have a container to store the overlay in. If your data is dynamic, you will need to dynamically provision a Div element, I think. -- You received this message because you are subscribed to the Google Groups "Google Visualization API" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/google-visualization-api. To view this discussion on the web visit https://groups.google.com/d/msgid/google-visualization-api/4624bb1a-d5f3-4f3e-9021-f61b798bbad4%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
