Ingmar,
Thank you for your answer. Right now, the team has already contributed
small patches, bug reports and ideas to MITK/ITK/VTK. At the moment,
however, there are legal reasons that make OSS full feature contribution
complex for us.
-F
On Wed, Jun 12, 2013 at 3:51 PM, Wegner <[email protected]> wrote:
> Hi Nil and Thomas,
> I think it depends heavily on the features the implementation should
> cover. Nil, could you clarify them in more detail?
>
> Concerning PointSetInteractor for a surface: picking a point won't be a
> problem, but I assume that this would not satisfy the needs. As setting
> the exact position in a 3D window is not trivial (because you are
> interacting on a 2D view) I think you want to interact on the 2D
> widgets. If you would show the vertices of a surface the way
> PointSetVtkMappper3D does, you could pick a vertex on a 2D widget. But
> this would at least snap the point onto that plane. Depending on what
> you want to achieve this is distracting because you can't set the vertex
> on a position that lies between all three orthogonal planes (neglecting
> slice rotation mode).
>
> One possibility would be to implement some type of a magnifier tool for
> surfaces where several vertices in a defined region are moved. So you
> pick a position in an epsilon region around the surface and you move the
> vertices in the region the same direction the mouse moves relative to
> the distance between picked position and those vertices in the region.
> That interaction would be even possible in 3D if you calculate the mean
> up vector of the modified region and move the surface in that direction
> according to mouse movement.
>
> The main reason for your boss: A contribution would be more than
> beneficial because if you give it to the main MITK developers they will
> also take care of maintaining that code in future releases. Less bugs,
> more quality and stability...
> That's what makes a good application, right?
>
>
> Best regards,
> Ingmar
>
>
>
> Am 12.06.2013 15:30, schrieb Nil Goyette:
> > Hi Thomas, thanks for your answer and your suggestions! I can now stop
> > searching all over mitk's code to be sure I didn't miss anything :) I'll
> > probably create this Interactor in the next weeks, but I can't say now
> > if I will contribute it or not. I would, but it's not only my decision.
> > Thanks again.
> >
> > Le 2013-06-12 03:43, Kilgus, Thomas a écrit :
> >>
> >> Hi Nil,
> >>
> >> this is definitely a feature request. I have not seen something like
> >> this in MITK, although it would be nice to have.
> >>
> >> As you already found out, the PointSetInteractor does the job for
> >> PointSets. In my opinion, the only tough part is to implement point
> >> picking on a surface. I have never done anything with picking before.
> >> You could check VTK if there is any interaction method to select a
> >> point on a vtkPolydata. All you need is the Id of the point you want
> >> to modify. Then you could use the arrow-keys/mouse to move your point
> >> according to the users input. Examples should be in the
> >> PointSetInteractor and the MoveBaseDataInteractor. After the
> >> polydata/point is modified you can it transfer to our mitkSurface via
> >> SetVtkPolyData. Hope that helps. Let me know if you manage to
> >> implement this and if you would like to contribute it to MITK.
> >>
> >> Regards,
> >>
> >> Thomas
> >>
> >> Thomas Kilgus
> >>
> >> German Cancer Research Center (DKFZ)
> >>
> >> Div. Medical and Biological Informatics
> >>
> >> Junior group: Computer-assisted Interventions (E131)
> >>
> >> Im Neuenheimer Feld 280
> >>
> >> 69120 Heidelberg, Germany
> >>
> >> Phone: +49(0) 6221-42-3545
> >>
> >> *From:*Nil Goyette [mailto:[email protected]]
> >> *Sent:* Dienstag, 11. Juni 2013 20:27
> >> *To:* [email protected]
> >> *Subject:* Re: [mitk-users] Mesh, moving points and volume
> >>
> >> Hi mitk's users,
> >>
> >> Nearly two months have past since my last request for help. I know you
> >> are all busy, but here's an update anyway, in the hope that someone
> >> might have a few minutes to help me.
> >>
> >> I had time in the last days to search further into my "Move some
> >> points" problem. Here's some details. I build the mesh of a heart and
> >> it works quite well. To do so, I use three objects : vtkPolyData
> >> mitk::Mesh and mitk::Surface. My goal would be to let the user modify
> >> the mesh/surface by moving points with his mouse. Surprisingly, I
> >> can't find anything to do it in mitk. I thought it was a frequent
> >> job. As for now, I found:
> >> - nothing with vtkPolyData because there's probably no interactor for
> >> vtk stuff :)
> >> - mitk::PointSet with a *PointSetInteractor* using type
> >> "onlymovepointsetinteractor" works perfectly, but ONLY with a
> >> mitk::PointSet. Even if mitk::Mesh is a subclass of mitk::PointSet, it
> >> doesn't work, probably because of the
> >> "dynamic_cast<mitk::PointSet*>(m_DataNode->GetData());" in
> >> PointSetInteractor::CanHandleEvent in mitkPointSetInteractor.cpp.
> >> - mitk::Surface with a *SurfaceInteractor* using type
> >> "AffineInteractor3D" which would work like your Clipping Plane plugin.
> >> I would probably be able to modify my surface with it, but it only
> >> works in the 3D view and it's too coarse, I can't target a single
> >> point. So, it's probably not the good tool for us.
> >>
> >> In the end, the only working solution I found is to use a
> >> mitk::PointSet, but I don't want to copy my points, let the user
> >> change some, click update and then let the user see the modification
> >> on the mesh. I want to let him move points (or cells) directly on the
> >> mesh/surface.
> >>
> >> So, does anyone know how to move points/cells on a mesh/surface? Do I
> >> need to code my own interactor? Thanks for your time.
> >>
> > --
> > Logo Imeka <http://imeka.ca/> Nil Goyette, M.Sc.
> > www.imeka.ca <http://imeka.ca/>
> >
> >
> >
> >
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--
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Plateforme d’analyse et de visualisation d’images
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