gijzelaerr
commented
10 years ago Original comment thread migrated from bugzilla
at 2011-11-02 21:38:59 Tony Willis replied:
At present the offset separation between individual inspector plots gets adjusted whenever new data is added to the plot. It is desirable to have a 'lock' option so that the offset scale remains constant when new data is added to the plot.
at 2011-11-02 21:58:05 Oleg Smirnov replied:
Actually, I'm ok with the offset recomputing itself whenever new data arrives, we can leave that as is.
What bothers me is the offset being different per plot page, and also being readjusted whenever you switch the displayed vells. This makes it rather hard to compare XX and YY when they're plotted to different scales. (On the other hand, you do want to readjust the offset when going between amplitude/phase/real/imag displays, for obvious reasons.)
In fact, it's not only offset itself that needs to be lockable, it's the entire Y axis! (Currently, the effective Y limits can be different -- for the same offset -- due to outliers in the individual tracks).
I suggest the following:
- first of all, always use the same Y limits across different pages. At present they are computed independently per plot page, which makes things difficult to compare. Since each page displays very similar physical quantities, it makes sense to always use the same Y scale across all pages.
- we add a "[x] lock" checkbox below the offset slider
- when you switch between displayed vells, recompute offset and Y limits (as is done now) if "lock" is not checked, or propagate the current offset and Y limits of the "old" Vells to draw the "new" Vells if "lock" is checked.
- when "lock" goes from checked to unchecked, recompute the offset and the Y limits of the currently displayed vells.
Let's try to implement like that and see how well it works.
at 2011-11-02 21:38:59 Tony Willis reported:
need a 'lock' option for chartplotter(inspector) plots