@AnnMarieW - thank you for taking the time to respond. I haven’t worked through your examples yet – but I’ll attempt to describe what I’m trying to do.
My candlestick chart is my starting point – Simple Example - Candlestick Chart From CSV File
I have this working using box-select, which fires a callback that passes the selected points data to a function I’ve written.
My problem is how to initiate yet-another function to take the processed output, so it can do some things and update a separate figure.
So, the ASCII flow diagram is like:
(User selects price bars) → Callback looking at SelectData fires → Custom function processes price data → (my stumbling block) Another custom function then takes this data and passes it to another figure so it updates.
In most examples I’ve run across, they only mention GUI elements and the like.
That part I totally get – there are states for those items and when they fire, you do things based on that stuff.
What I haven’t seen is how to create a CUSTOM callback or chained callback to do what I’m proposing. Is this out of the realm of possibility, or what have I missed?
I deeply appreciate your attention to my newbie problems, truly.