[Ves] vtkAxesActor

[Eduardo Poyart]

I can share something soon, not all of my source but the parts that do
this change. I'm interested in doing that. I think I can fork
Aashish's project on github and put my changes there. Is it kept up to
date?

However, it's not very general at this point, I have to clean it up.
What I did was: copied the vesKiwiImageWidgetRepresentation to my own
ImageWidgetRepresentation, and I handle single touch, two touch, etc
instead of sending the events up the chain. I'm currently not using
the CameraSpinner because it's too tied to the camera. It would be
interesting if it operated on a Transform instead (both the Spinner
and the CameraInteractor).

I store the model's Transform in this class and I add it to the scene
graph above the actor. For the slice picking, I just transform the ray
by the inverse model transform before doing the intersection tests.

I don't remember exactly why I had to copy
vesKiwiImageWidgetRepresentation instead of subclassing it. In general
I found it hard to subclass Kiwi classes, mostly due to needed things
being inside Internal, without accessors.

Eduardo


On Tue, Mar 12, 2013 at 8:04 PM, Pat Marion <pat.marion at kitware.com> wrote:
> Yeah, I guess I should add that the concept exists in the
> vesKiwiPlaneWidget, which is used as the clipping plane in the brain atlas
> demo, but it's hasn't been generalized so that you can enable interaction
> for any model.
>
> Pat
>
>
> On Wed, Mar 13, 2013 at 1:00 PM, Aashish Chaudhary
> <aashish.chaudhary at kitware.com> wrote:
>>
>> On Tue, Mar 12, 2013 at 10:51 PM, Pat Marion <pat.marion at kitware.com>
>> wrote:
>> > Very cool, so I guess you re-routed the touch gestures from the camera
>> > to
>> > individual models?  Did you use the vesKiwiWidgetRepresentation
>> > interface?
>> > How about the picking code, did you use the cell picker or something
>> > else?
>> > Not sure if you are able to share your source, but I'm sure there would
>> > be
>> > interest in the community to see example code for rotating individual
>> > models, because that's not something we've shown in KiwiViewer before.
>>
>> +1 would be nice to have this feature shown / exists.
>>
>> >
>> > Pat
>> >
>> >
>> > On Wed, Mar 13, 2013 at 12:41 PM, Eduardo Poyart <poyart at gmail.com>
>> > wrote:
>> >>
>> >> Thanks! I'll try with the vtkAxisSource. I changed my system to keep
>> >> the camera fixed and rotate the models (since I need multiple models
>> >> rotating independently). So the model transforms are under my control.
>> >>
>> >> Eduardo
>> >>
>> >>
>> >> On Tue, Mar 12, 2013 at 7:37 PM, Pat Marion <pat.marion at kitware.com>
>> >> wrote:
>> >> > Hi,
>> >> >
>> >> > That's correct, the vtkAxisActor is not supported.  Only the
>> >> > vtkRenderingCore module is built, the rest of VTK's OpenGL rendering
>> >> > does
>> >> > not support OpenGL ES 2.0.
>> >> >
>> >> > You can use the vtkAxisSource to generate geometry for a set of axes,
>> >> > and
>> >> > you can render them using VES actors. VES has support for actor
>> >> > overlays, if
>> >> > you are trying to acheive a corner annotation.  But, there is not
>> >> > currently
>> >> > an example demonstrating how to link a VES actor transform to the
>> >> > camera
>> >> > orientation.
>> >> >
>> >> > Pat
>> >> >
>> >> > On Wed, Mar 13, 2013 at 12:32 PM, Eduardo Poyart <poyart at gmail.com>
>> >> > wrote:
>> >> >>
>> >> >> Hi,
>> >> >>
>> >> >> I'm trying to use vtkAxesActor, but vtkAxesActor.h includes
>> >> >> vtkRenderingAnnotationModule.h which doesn't exist in the vtk
>> >> >> implementation in ves. Are RenderingAnnotations (therefore
>> >> >> AxesActors)
>> >> >> not supported?
>> >> >>
>> >> >> Thanks
>> >> >> Eduardo
>> >> >> _______________________________________________
>> >> >> Ves mailing list
>> >> >> Ves at public.kitware.com
>> >> >> http://public.kitware.com/cgi-bin/mailman/listinfo/ves
>> >> >
>> >> >
>> >
>> >
>> >
>> > _______________________________________________
>> > Ves mailing list
>> > Ves at public.kitware.com
>> > http://public.kitware.com/cgi-bin/mailman/listinfo/ves
>> >
>>
>>
>>
>> --
>> | Aashish Chaudhary
>> | R&D Engineer
>> | Kitware Inc.
>> | www.kitware.com
>
>