[vtkusers] SetAspect does nothing???

[pinkentitus]

Hi Greg,

You should set the PixelAspect on the viewport, then the value for Aspect
will be autmatically calculated.
However, our experience is that this works fine in vtk 4.0 but not quite in
4.2. It looks like most actors don't take the aspect into account. We
suspect that this is not the intended behaviour but don't have a solution
yet.
Any suggestions will be gratefully received.

Titus.


----- Original Message -----
From: "Lisa Avila" <lisa.avila at kitware.com>
To: "Greg Scott" <g.scott at oneteldsl.net>; <vtkusers at vtk.org>
Sent: Monday, July 14, 2003 5:33 AM
Subject: Re: [vtkusers] SetAspect does nothing???


Hi Greg,

I am not sure why there is a set method for aspect - it is computed from
the height vs. width of the window and should not be set by the user.

Lisa

At 06:15 PM 7/11/2003, Greg Scott wrote:
>Hi there,
>
>I am trying to set the aspect ratio of a perspective rendering using
>vtkViewport->SetAspect. However, different settings have no effect what so
>ever. I believe this is because I'm using OpenGLRenderWindow. Does anyone
>know the work around for this?
>
>Many thanks for any responses.
>
>Greg
>
>----- Original Message -----
>From: <vtkusers-request at vtk.org>
>To: <vtkusers at vtk.org>
>Sent: Friday, July 11, 2003 12:38 PM
>Subject: vtkusers digest, Vol 1 #1949 - 1 msg
>
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> > Today's Topics:
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> >    1. Re: Multiple slices of a raw data (Romain Ollivier)
> >
> > --__--__--
> >
> > Message: 1
> > Date: Fri, 11 Jul 2003 13:10:31 +0200
> > From: Romain Ollivier <Romain.Ollivier at sophia.inria.fr>
> > To: =?iso-8859-1?Q?H=E4m=E4l=E4inen?= Janne <Janne.Hamalainen at hus.fi>
> > Cc: vtkusers at vtk.org
> > Subject: Re: [vtkusers] Multiple slices of a raw data
> >
> > Thamk you for your response.
> > I use this method to rotate my datas:
> >
> >   public void rotate(int angle)
> >   {
> >     slicer.SetInput(map.GetOutput());
> >     slicer.SetResliceAxesOrigin(0, 0, 0);
> >     transform.RotateX(angle);
> >     slicer.SetResliceTransform(transform);
> >   }
> >
> >  But it is the entire raw datas wich rotate... not the slice. The slices
>are
> > still along the z axis. I wanted to get three vtkImage actors of the
same
>raw
> > data along x, y and z axis in the same renderer. Do you know if i can
>perform
> > that with vtkImageReslice filter ?
> >
> > Thamk you,
> >
> >       Romain
> >
> > Hämäläinen Janne wrote:
> >
> > > You have to filter the data through a vtkImageReslice filter. The
class
> > > slices a 3D image along specified direction. It does also plenty of
>other
> > > stuff. Look documentation for example from vtk homepage:
> > >
> > > http://www.vtk.org/doc/nightly/html/classvtkImageReslice.html
> > >
> > > -Janne
> > >
> > > --
> > > Janne Hämäläinen
> > > Research Assistant
> > > Helsinki University Central Hospital
> > > X-ray Department
> > >
> > > email   janne.hamalainen at hus.fi
> > >
> > > > ----------
> > > > Lähettäjä:    Romain Ollivier[SMTP:Romain.Ollivier at sophia.inria.fr]
> > > > Lähetetty:    11. heinäkuuta 2003 13:01
> > > > Vastaanottaja:        vtkusers at vtk.org
> > > > Aihe:         ÄvtkusersÅ Multiple slices of a raw data
> > > >
> > > >   Hi,
> > > >
> > > >   I'm working on a vtk viewer based on a swing interface. I use a
>vtkPanel
> > > > to show my results. I'm using raw datas and I want to watch them
with
> > > > differents slices like that :
> > > >
> > > >
> > > >            /|
> > > >   ________/______
> > > >  |       /  |    |
> > > >  |  ____/___|____|__
> > > >  | /   |   /     | /
> > > >  |/____|__/______|/
> > > >  /     | /       /
> > > > /______|/_______/|
> > > >  |     |   /     |
> > > >  |_____|__/______|
> > > >        | /
> > > >        |/
> > > >
> > > > But it seems that slices can only be defined on the z axis.
> > > >
> > > > Has anyone an idea to handle this problem ?
> > > >
> > > > Thanks a lot,
> > > >
> > > >        Romain
> > > > _______________________________________________ This is the private
>VTK
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