(02-26-2024, 11:32 PM)iwuser Wrote: The provided example is very simplistic: you give the chart 10 values and 10 / matching number of  labels and that's it.

What do I do if I have a very long list of frequent readings for a small number of hours or days? - how can I stuff all these values into the chart and only have 24 hour labels? Or 7 days worth of labels? And possibly decimate it as well? My "X" values for the data points is in Unix time format - seconds from something in the past, or I can make it TDateTime instead, but I would want the few shown labels to refer to around the current time / date.

Also, if I have gaps in this data, I want it shown as a broken line - - - - - or something. Hopefully automatically, without actually looking for any gaps in the Delphi code.

It looks like ChartJS supports both, but I could not figure out how to feed this into the TIWChartJS component, hope you can help...

(03-01-2024, 07:25 AM)Alexandre Machado Wrote: I'll see if I can get you a demo that shows what you're asking. Some time since the last time I digged under the ChartJS library... let's see what I get

(03-02-2024, 03:34 AM)Alexandre Machado Wrote: I believe you are considering something like this?

(03-02-2024, 03:53 PM)iwuser Wrote:

(03-02-2024, 03:34 AM)Alexandre Machado Wrote: I believe you are considering something like this?

Yes, exactly! I'm not even so fussed about reducing points (although that would be nice), as reducing the count of labels and then showing points proportionally to the labels. And if there's for instance 1h of data missing, I want it shown with some kind of broken line that connects the last point before the gap with the first one after the gap, if you know what I mean.