On 01/04/14 22:12, Christian wrote:
On 01.04.2014 09:56, Karsten Loesing wrote:
Do you think it would be better to modify the graphs so all of them start/end at the same time? (There is a small offset because the first and last fields aren't always the same)
I thought about this, but didn't bring it up yet, because it may not be trivial to implement.
Idea #1: Does the graphing engine support defining the x axis limits independent of displayed data points? That is, can you draw a graph like this (bad ASCII "art" ahead):
+-----------------------------------+ | | | -O | O-- | --O------O-- -- | -- |- -- -- | --O--| --O- | | | +-----------------------------------+ x_start x_endIf so, I'd say try setting x_start to current system time minus whatever period you're displaying and x_end to current system time.
By doing so, you'll discard a few data points left to x_start, and you'll leave some graph space empty between the last O and x_end. But you'll have graphs displaying exactly the promised time period, and graphs for that period will be easier to compare. I'd say that's a fine compromise.
Idea #2: If the graphing engine does not support redefining x axis limits, you'll need to do some tricks: if there's no data point for x_start, compute this point as the average of the two data points before and after x_start; also add a "null" value for x_end.
Idea #3: If you want to postpone implementing this, feel free to open a ticket and paste our conversation there. Especially if you'd have to implement a workaround for the current graphing engine and re-implement something else for Globe-node. This is a nice feature and worth doing, but it's not a blocker.
I'm going to try solving this tomorrow. If nothing useful comes out of it I'll open an issue.
Sounds good. Maybe, if you don't mind, let's move this discussion to a ticket regardless.
Next up I'll add some data for the left column. Is there anything special that should be visible there? If not I'm going to use the status.github idea and display average graph data there.
Average graph data sounds good. (If you're cutting off values left to x_start as discussed above, be sure to exclude them from the average.)
I updated the #11349 build with average data:
Looks great! I added some feedback to #11349.
Thanks!
All the best, Karsten