Hi Andreas,

You can find an starting example in  <pyqtgraph>/examples/customPlot.py  

But IMHO, the implemented axis item there is too basic for real purposes 
(e.g., the tick values do not align with natural time units).

We implemented a slightly more advanced DateAxisItem for our own project 
(Taurus) which you may find useful:

https://gist.github.com/cpascual/cdcead6c166e63de2981bc23f5840a98

I hope it helps

Carlos 

PS:  The original code comes from:
https://github.com/cpascual/taurus/blob/tep17/lib/taurus/qt/qtgui/tpg/
... but the above gist is adapted by removing all Taurus-specific code so that 
it can be executed as-is. My intention is to submit this (and other similar 
stuff) with a PR to pyqtgraph if Luke is interested on it .

On Wednesday, January 3, 2018 4:53:31 AM CET Ober Wallis wrote:
> Dear Luke
> 
> First many thanks to this cool and helpful tool.
> 
> I stumbled over this thread during my search of examples and advice how to
> plot data over timestamp. Currently I am using version 0.10.0 and since in
> version 0.9.11 you guys have been playing around with the plotting over
> time and therefore I was wondering wheter there is an easy way now to do
> so...
> 
> I tried this Thread
> <https://groups.google.com/forum/#!topic/pyqtgraph/kGHogKpcZC0> but it
> didn't solve my problems, as I have a GUI made with Qt Designer, so I
> failed to implement the "CAxisTime"-class.
> 
> Also in the documentation I couldn't find much, except of this hint that
> something has been implemented working with time: Displaying images and
> video <http://www.pyqtgraph.org/documentation/images.html?highlight=time>
> 
> Best regards
> 
> Andreas
> 
> Am Sonntag, 1. Juni 2014 05:38:47 UTC+2 schrieb Luke Campagnola:
> > On Sat, May 31, 2014 at 4:28 PM, shx2 <[email protected] <javascript:>>
> > 
> > wrote:
> >> Hi everybody,
> >> 
> >> I've implemented my own DateAxis, which seems to be working nicely. Is
> >> this of any interest to anybody? Should I submit a pull request?
> > 
> > I am very interested; this is an often-requested feature. (but please do
> > not be discouraged if it takes me some time to review your PR)
> > 
> >> One thing about my implementation is that it is using pandas for
> >> timestamp manipulation, which might cause an undesirable external
> >> dependency... The reason I decided to use pandas is that it provides the
> >> best tools I konw for manipulating timestamps and time frequencies (by
> >> far,
> >> IMO).
> > 
> > Yes, that would be problematic. I imagine there is not too much code
> > required for this..  is it possible to just copy or re-implement the
> > relevant code from Pandas? If you do copy anything, please include a note
> > about the original source and license of the code.
> > 
> > 
> > Luke


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