YAMCS Web UI - XY Graph

[Josemi Sánchez]

Hi all,

Im trying to use some "XY Graph" widgets, but i'm having a strange behaviour. (using last version of yamcs 5.12.3)

To reproduce:

- OPI with XY Graph with default options

- 2 traces with PVs that updates in the same time

- Launch YAMCS server > Go to web ui > open OPI

- Set "loockback period" to 1minute to see it clearly.

With these steps, what I see is that the graph is properly updated with new data but the "old" data do strange things, it looks like it is jumping every second showing buffered older data, to last new 1min only data.

I have tried playing with different configurations like "buffer size" and "update delay" but it does not affect. 

Do you have any idea? Maybe an issue with webUi or widget configuration?

Note: i dont see any other rare behaviour in other widgets.

Note2: using the same OPI in Display Runner works perfect.

Thanks in advance

Josemi