I am trying a very basic thing but cannot find the right option. I would like to have something like a "live-ticker" chart which shows the last(est) x values (just numbers). When I use a DataSource with my sparkline chart I can add records and togehter with categoryAxis.min=0 and categoryAxis.max=16 I get the first 16 values display but not the last 16 values. How can I achieve this?
There is a DataSource.remove but it requires to give a certain object. Is there an index-based remover? Is there a better approach?
Also to make it more advanced I would like not to hardcode the maximum number of values displayed but have it depend on the available space (if the chart is big enough for 100 values, lets show 100 - if smaller then fewer). I know if I make the chart bigger on-the-fly that additional values might not be there yet but that would be okay - the graph can fill with time.
This is like show a value every second.