Bundle Annotations like Google Finance

[stevenae]

Hello,

Thank you for maintaining this invaluable project! I have a request -- Google Finance seems to use the same AnnotatedTimeLine function as googleVis, but their charts bundle multiple annotations for the same data point such that they are unintrusive:

and expand when clicked on:

Can this functionality be added to googleVis?

Thank you!
Steven

[Markus Gesmann]

Have you looked into the newer gvisAnnotationChart function?

Google has replaced the old Flash based annotated time line chart with this newer HTML5 version: https://developers.google.com/chart/interactive/docs/gallery/annotationchart