Hi community!
I'm going to start my work on the view I need.
I hope it will be useful for the community too, so sharing
my ideas in order to get your criticism on them.
I need a view that is able to display data from
various sources. I had a brief review of the idea
implemented in this change [1]. I believe it to be a great
solution, but what I really need here is an ability to
display charts. For example, line series, especially more
than one series on a chart (to compare at a glance).
So, my vision on my new view is as follows:
The view will consist of two main parts: X axis
that is shared between inner viewers and a customizable set
of lanes. A lane consists of two viewers: legend or list of
entities to display and the data itself (Gantt or XY chart)
along the X axis. Right now I need two types of lanes:
TimeGraph lane and XYChart lane. A prototype of the view
looks like this: [2]
On the prototype one can see 5 lanes and the X
axis at the bottom:
- TimeGraph with alarms and two modes;
- XYChart with pressures;
- XYChart with gas concentrations;
- TimeGraph with one more mode that we need to
see next to previous XY;
- XYChart with more gases.
The main idea is to create an opportunity to
add/remove/modify lanes with various data sources according
to a user's wishes.
Implementation:
I'm going to implement the view to be an
orchestrator of lanes. The user should be able to add or
remove a lane. Lanes will have a property 'type'
('TimeGraph' and 'XY' for the start). Lane's viewers will be
based on the type. The user should be able to choose a data
provider (or analysis, or a set of them?) according to the
lane's type.
As a first step I plan to implement the view
using existing viewers that are used by
AbstractTimeGraphView and TmfChartView.
Also, I have a question regarding a place where
I can start my work. What should I choose: Trace Compass,
Incubator or a separate plugin?
Thanks.
[1] https://git.eclipse.org/r/c/137165
[2]
https://imgur.com/a/ccxVWTv
--
Best regards,
Ivan Grinenko
Software Engineer
Auriga
First
of all, huge (YUGE) thanks for your involvement w/ the
community so far! We have been chatting on IRC, but I
would like to summarize my (personal) views on the
subject.
With
respect to the view you are proposing, I have personally
on my own time experimented with the idea. I have made a
view I jokingly call the "mother of all views"[1].
Now
we have data providers and data provider descriptors[2].
We can therefore have a view that gets "every" or a
sub-list of all the data providers and puts them in a
gantt chart (time graph view)
The
time graph view can support line charts now.[4] and bar
charts can be added soon(tm) [5]
With
this what's left is the content presentation. Recently
presentation providers [3] have been merged under the name
"fetchstyle". I sincerely believe most of the heavier
lifting is done. 🙂
Here
are some examples of views but they need to be updated.
With
this solution, let's compare your requirements
>
The main requirements for the new view:
> (YES) - synchronized vertical sashes;
> (YES) - shared X axis (viewport boundaries along the
axis);
> (NO) - ability for a user to customize set and order
of pairs of viewers (can be named "lanes", "rows"). Could
be done with an additional form where a user can define
the set and order of lanes;
> (NO, it is global at the moment, but we can filter on
entry) - ability for a user to customize each lane with
items to show there (like filters for a TimeGraphView or
checkboxes for a TmfChartView);
> (NO, no major architectural issues though) - each
lane must have an ability to fix its Y axis to
user-defined values;
> (NO, this may be assisted by EASE.) - widgets should
not be created only by analysis, a user should be able to
add views that are not connected to a specific analysis;
> (YES, the view can support it)- not sure if any
headers are needed for lanes.
I
would estimate this is non-trivial work, but if your
priorities are #1 and #2, you can deliver something much
faster. The hardest item in my opinion is moving
entries/lanes. That is mostly since I haven't put much
thought into it though, maybe there's a simple answer out
there.
Hi
all,
We have a need in something similar to the idea
described in "Proposal 3: Compressed" here [1]. The
main idea is to put different viewers one under
another to maintain the same viewport in terms of
time (or X axis).
The main requirements for the new view:
- synchronized vertical sashes;
- shared X axis (viewport boundaries along the
axis);
- ability for a user to customize set and order of
pairs of viewers (can be named "lanes", "rows").
Could be done with an additional form where a user
can define the set and order of lanes;
- ability for a user to customize each lane with
items to show there (like filters for a
TimeGraphView or checkboxes for a TmfChartView);
- each lane must have an ability to fix its Y axis
to user-defined values;
- widgets should not be created only by analysis, a
user should be able to add views that are not
connected to a specific analysis;
- not sure if any headers are needed for lanes.
It is quite similar to the "Proposal 3", but I'd
like to make it possible to open any view (or at
least some of them) whether as a separate view or as
a TimeLineView widget. Sometimes a user wants to see
a widget twice with different filters for example.
At this point I don't know whether it is possible
(or even makes sense) to make existing views to be
shown as widgets of another view or should we create
new widgets for the new view.
Could anyone suggest the best entry point to begin
to investigate the topic, please?
Thanks!
--
Best regards,
Ivan Grinenko
Software Engineer
Auriga
[1] https://wiki.eclipse.org/Trace_Compass/Design_Documents/Aligned_x_axis
