[Kst] Using scalars in drawable objects

[Nicolas Brisset]

Hi Mark,

interesting idea. One option may be to use scripting to animate view objects. I don't know whether it is supported yet or not.
However, this sounds quite like a hack. A better alternative would probably be to write another renderer than the current cartesian one. I think the infrastructure is there to allow it, but I don't know the details. 
Looking at http://qwt.sourceforge.net/controlscreenshots.html it looks like qwt has some interesting classes. 
Apparently QML also allows for some interesting possibilities: https://idlebox.net/2010/apidocs/qt-everywhere-opensource-4.7.0.zip/declarative-ui-components-dialcontrol.html. But I don't know whether that would be easy to plug into Kst.
Plus you will have one question to solve with such controls which show only one value at a time (compared to a curve which shows a time series): to which point in other plots do you synchronize when zooming/scrolling (I'd suggest the last one)?

Barth: some thoughts on that?

Nicolas

----- Mail original -----
> De: "Mark Dammer" <mark.dammer at googlemail.com>
> À: kst at kde.org
> Envoyé: Vendredi 5 Octobre 2012 14:20:04
> Objet: [Kst] Using scalars in drawable objects
> 
> I am interested to display changing scalars in the form of analog
> instruments like the ones you find in cockpits, so that changes in
> the
> data can be quickly and easily observed and interpreted. In addition
> to
> the plotting functions Kst could then be used to create dashboards
> for
> process monitoring etc.
> Is it possible to manipulate the position / orientation of drawable
> objects (arrow, line etc.)  in Kst via scalars ? If not, would it be
> very complicated to implement this ?
> 
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