Stream / ThemeRiver Chart
The ThemeRiver or Stream chart is a type of flow graph that shows changes of events (themes) over time.
Key implementation details
We use SmoothedXLinesSeries for the series. We set fillOpacity on it to 1 to make it an area chart. Then we process the data to create valueYField and openValueYField data fields holding ajdusted values for the stacking effect.
Related tutorials
Demo source