OMG,
thank you very much for your details. i try it.
best regards
----------------------------------------
> Date: Wed, 6 Aug 2008 13:21:10 +0200
> From: [EMAIL PROTECTED]
> To: [EMAIL PROTECTED]
> CC: [email protected]
> Subject: Re: [mitk-users] problem about the surface and image
>
> The resulting image has the same size as the input image. Thus, if
> surface is (partially) outside the input image, it will also be
> (partially) outside the output image. The reason that you need to
> provide an input image at all, is that we must somehow to determine the
> pixeltype, dimension, spacing the output image shall have - the easiest
> way to do that was just to provide an input image as example... This
> input image needs to be initialized, but does not need to contain a data
> vector.
>
> To create an image of the same size as the surface, use the following
> Initialize() variant of mitk::Image:
> http://www.mitk.org/documentation/doxygen/classmitk_1_1Image.html#a20
> mitk::Image::Pointer image = mitk::Image::New();
> image->Initialize(PixelType(unsigned char), *surface->GetGeometry3D());
>
> This image will have unit spacing. You can change this by image->SetSpacing.
>
> Now it should be possible to use it with mitk::SurfaceToImageFilter.
>
> Best regards,
>
> Ivo
>
> guoyanmin wrote:
>> one question also, if i use mitk::SurfaceToImageFilter, i need not to
>> think about the different coordinate systems between surface and
>> image, i need only image and surface as input to this filter?
>>
>> best regards
>>
>>
>>
>>> Date: Wed, 6 Aug 2008 13:00:46 +0200
>>> From: [EMAIL PROTECTED]
>>> To: [EMAIL PROTECTED]
>>> CC: [email protected]
>>> Subject: Re: [mitk-users] problem about the surface and image
>>>
>>> Hi,
>>> your code snippet looks like you want to convert a surface to an image,
>>> is this correct? MITK has a filter for that purpose - which does more or
>>> less the same as you do, i.e., using vtk stenciling:
>>> mitk::SurfaceToImageFilter. If you tried it and it did not work as you
>>> expected, please tell us ...
>>> For more information, see
>>>
>> http://www.mitk.org/documentation/doxygen/classmitk_1_1SurfaceToImageFilter.html
>>>! Best regards,
>>> Ivo
>>>
>>> guoyanmin wrote:
>>>> thank you so much for your quickly answer,but i have used the
>>>> transformfilter from the index coordinates system to the world
>>>> coordinate system, i have writed
>>>>
>>>> TimeSlicedGeometry *surfaceTimeGeometry =
>>>> surface->GetTimeSlicedGeometry();
>>>>
>>>> TimeSlicedGeometry *imageTimeGeometry = img->GetTimeSlicedGeometry();
>>>>
>>>> Geometry3D* imageGeometry = imageTimeGeometry->GetGeometry3D(0);
>>>>
>>>> vtkPolyData * polydata = surface->GetVtkPolyData( );
>>>>
>>>> Geometry3D* surfacegeometry = surfaceTimeGeometry->GetGeometry3D(0);
>>>>
>>>> vtkLinearTransform *transform = surfacegeometry->GetVtkTransform();
>>>>
>>>> vtkTransformPolyDataFilter *
>>>> transformFilter=vtkTransformPolyDataFilter::New(); *
>>>> transfor! mFilter->SetInput(polydata);
>>>>
>>>> tran! sformFil ter->SetTransform(transform);
>>>>
>>>> transformFilter->Update();
>>>>
>>>> vtkPolyDataToImageStencil * dataToStencil=
>>>> vtkPolyDataToImageStencil::New();
>>>>
>>>> dataToStencil->SetInput( transformFilter->GetOutput());
>>>>
>>>> *
>>>>
>>>> * vtkImageStencil * stencil = vtkImageStencil::New();*
>>>>
>>>> ** * stencil->SetStencil(dataToStencil->GetOutput());*
>>>>
>>>> * stencil->SetBackgroundValue( 0 );*
>>>>
>>>> * stencil->ReverseStencilOff();*
>>>>
>>>> * vtkImageData *vtkimage = image->GetVtkImageData();*
>>>>
>>>> * stencil->SetInput( vtkimage );*
>>>>
>>>> * stencil->Update();*
>>>>
>>>> * vtkimage = stencil->GetOutput();*
>>>>
>>>> * mitk::Image::Pointer m_img;*
>>>>
>>>> * m_img->Initialize(vtki! mage);*
>>>>
>>>> * m_img->SetVolume( vtkimage->GetScalarPointer() );*
>>>>
>>>> *
>>>> *
>>>>
>>>> *and this m_img is the new cut image, what i want.but it shows not in
>>>> the right position. can you give me some ideas.*
>>>>
>>>> *
>>>> *
>>>>
>>>> *
>>>> *
>>>>
>>>> *& nbsp;
>>>> *
>>>>
>>>> * *
>>>>
>>>> *
>>>> *
>>>>
>>>> **
>>>>
>>>> * *
>>>>
>>>> *
>>>> *
>>>>
>>>> *
>>>>
>>>> *
>>>>
>> ------------------------------------------------------------------------
>>>> *Subject: AW: [mitk-users] problem about the surface and image
>>>> Date: Wed, 6 Aug 2008 12:04:50 +0200
>>>> From: [EMAIL PROTECTED]
>>>> To: [EMAIL PROTECTED]; [EMAIL PROTECTED] forge.net
>>>>
>>>> *
>>>>
>>>>! ; *Hi Ja cob,*
>>>>
>>>> *did you possible use the coordinates of the surface to cut the image
>>>> and not the world coordinates of the surface?*
>>>>
>>>> * *
>>>>
>>>> *You will have to transform the surface coordinates (this way the
>>>> transform to the center is also considered) to world coordinates and
>>>> then to the coordinate space of the image to get the right positions.*
>>>>
>>>> * *
>>>>
>>>> *Regards,*
>>>>
>>>> *Ingmar*
>>>>
>>>> * *
>>>>
>>>> *Dipl.-Inform. Med. Ingmar Wegner
>>>> DKFZ
>>>> German Cancer Research Center (Deutsches Krebsforschungszentrum)
>>>> Member of the Helmholtz Association
>>>> Division Medical and Biological Informatics E130
>>>> Im Neuenheimer Feld 280
>>>> D-69120 Heidelberg*
>>>>
>>>> *Phone: 49-(0)6221-42-3543
>>>> Fax:! 49-(0)6221-42-2345
>>>> E-Mail: [EMAIL PROTECTED]
>>>> Web: www.dkfz.de*
>>>>
>>>> * *
>>>>
>>>> *Confidentiality Note: This message is intended only for the use of
>>>> the named recipient(s) and may obtain confidential and/or privileged
>>>> information. If you are not the intended recipient, please contact the
>>>> sender and delete the message. Any unauthorized use of the information
>>>> contained in this message is prohibited. *
>>>>
>>>> * *
>>>>
>>>> **Von:* [EMAIL PROTECTED]
>>>> [mailto:[EMAIL PROTECTED] *Im Auftrag von
>>>> *guoyanmin
>>>> *Gesendet:* Mittwoch, 6. August 2008 11:36
>>>> *An:* [email protected]
>>>> *Betreff:* [mitk-users] problem about the surface and image*
>>>>
>>>> * *
>>>>
>>>> *hallo everyone, i have! one question long times.
>>>> now i want to use the s! urface t o cut one image, i load the
>> surface and
>>>> image, for example this surface stay upper-left of image, i move this
>>>> surface to the center of image, and cut this image, but this part of
>>>> cut image is showed only upper-left position, that means, only in the
>>>> position, where i load the surface.
>>>> anybody can tell me, how i can put this cut image in the center of
>>>> image, but not in the upper-left position.
>>>>
>>>> best regards
>>>>
>>>> *
>>>>
>>>>
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>>>
>>>
>>> --
>>> -----------------------! --------
>> ---------------------------------------
>>> Dr. Ivo Wolf, Dipl.-Phys. Phone: (+49) 6221/42-2327
>>> Deutsches Krebsforschungszentrum Fax: (+49) 6221/42-2345
>>> Div. Medical and Biological Informatics (E130)
>>> Im Neuenheimer Feld 280 email: [EMAIL PROTECTED]
>>> D-69120 Heidelberg, Germany http://mbi.dkfz-heidelberg.de
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>
> --
> ----------------------------------------------------------------------
> Dr. Ivo Wolf, Dipl.-Phys. Phone: (+49) 6221/42-2327
> Deutsches Krebsforschungszentrum Fax: (+49) 6221/42-2345
> Div. Medical and Biological Informatics (E130)
> Im Neuenheimer Feld 280 email: [EMAIL PROTECTED]
> D-69120 Heidelberg, Germany http://mbi.dkfz-heidelberg.de
> ----------------------------------------------------------------------
> Confidentiality Note: This message is intended only for the use of the
> named
> recipient(s) and may obtain confidential and/or privileged information.
> If you
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