[vtkusers] Convert VTK 3D world coordinates to 3D DICOMcoordinate

[Andrick Rampun]

Yes....exactly...but how can i do that mathematically? without looking at
the VTK code.
I would like an explanation in a mathematical way so i can write my own
code in MatLab.

Thanks,
Eric


On Thu, May 23, 2013 at 11:00 AM, Hongsongyang <hongsongyang at 163.com> wrote:

> Could I understand as that you want to convert world coordinates into
> screen
> coordinates?
>
> > -----Original Message-----
> > From: vtkusers-bounces at vtk.org
> > [mailto:vtkusers-bounces at vtk.org] On Behalf Of ericphd
> > Sent: Thursday, May 23, 2013 12:51 AM
> > To: vtkusers at vtk.org
> > Subject: Re: [vtkusers] Convert VTK 3D world coordinates to
> > 3D DICOMcoordinate
> >
> > Thanks for your reply hongsongyang,
> >
> > Okay..maybe I should explain more here.
> > The coordinates/annotations generated by the tool (ITK/VTK) I
> > presume in World coordinate?
> >
> > If they are in world coordinate then what I want to do is to
> > write a MatLab code to convert all those world coordinates
> > into 2D with top left corner starts from (0,0). Basically I
> > want to convert those world coordinate into 2D image plane as
> > we viewing image on our computer screen.
> >
> > * Maybe ignore the 3D dicom coordinate here. I just want to
> > convert from world coordinate into 2D image plane coordinate.
> > For example something like this
> >
> > In world coordinate generated from VTK (-2.23,6.95,17.5) and into 2D
> > (209,264)
> >
> > But don't worry about the matlab code because i can write it.
> > I just want to know the mathematical formula to do the conversion.
> >
> > Thanks,
> > Eric
> >
> >
> >
> > --
> > View this message in context:
> > http://vtk.1045678.n5.nabble.com/Convert-VTK-3D-world-coordina
> > tes-to-3D-DICOM-coordinate-tp5720854p5720886.html
> > Sent from the VTK - Users mailing list archive at Nabble.com.
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