[vtkusers] Selecting multiple actors

[David Doria]

On Thu, Jan 21, 2010 at 8:56 AM, Anka Kochanowska <pluszcz at gmail.com> wrote:

> Hi!
> Please, send messages to vtkusers, this way, you might get better answers
> :-)
> Something like:
>
>        vtkAssembly *assembly;
>        vtkImagePlaneActor * plane = vtkImagePlaneActor::New();
>        plane->SetInput(...);
>        plane->SetUserTransform( ... );
>        ...
>        assembly->AddPart( plane );
>
> Anka
>
> On Thu, Jan 21, 2010 at 8:36 AM, KS Jothybasu <jothybasu at gmail.com> wrote:
> > Thanks,
> >
> > Do you mean that its possible to add actors to an assembly?
> >
> > I am new to vtk and in the learning phase. If thats's possible then I
> will
> > try that!
> >
> > Thanks,
> >
> > Jothy
> >
> > On Thu, Jan 21, 2010 at 12:59 PM, Anka Kochanowska <pluszcz at gmail.com>
> > wrote:
> >>
> >> Hi!
> >> It would need some work in UI. You might keep a list of selected
> >> actors and then apply the same transform to all the actors from the
> >> list.
> >> Would be easier to have actors in one assembly but, that probably is
> >> not your intention.
> >> Anka
> >>
> >>
> >> On Thu, Jan 21, 2010 at 7:52 AM, David Doria <daviddoria+vtk at gmail.com<daviddoria%2Bvtk at gmail.com>
> >
> >> wrote:
> >> > On Fri, Jan 15, 2010 at 7:32 AM, KS Jothybasu <jothybasu at gmail.com>
> >> > wrote:
> >> >>
> >> >> Hi,
> >> >>
> >> >> I would like to select multiple actors with ctrl/shift key amd move
> >> >> them
> >> >> at once.
> >> >>
> >> >> How to do this?
> >> >>
> >> >> Thanks
> >> >>
> >> >> Jothy
> >> >>
> >> >
> >> > This is another case where a couple of "nope, I've never seen
> something
> >> > like
> >> > this" from a couple of experienced users could at least bring some
> >> > closure
> >> > to the issue.
> >> > Anyone?
> >> > Thanks,
> >> >
> >> > David
> >> > _______________________________________________
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> >> _______________________________________________
>
>
I made a demo of assembly's here:
http://www.vtk.org/Wiki/VTK/Examples/Interaction/Assembly

However, I don't think this is exactly what you were asking. What I
understood is that you want to have the user select actors, and add them to
an assembly at runtime. I guess you could subclass the TrackballActor
interactor, check for which object was selected, and maintain the assembly
variable as an ivar.

Let us know if you get it working.

Thanks,

David
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