[vtkusers] [Gdcm2] Problem reading RT struct file

[Jothy]

This is exactly what I am trying to do.

But I get memory errors when ever I try to call GetNumberOfItems(). (I am
using the same part of code in vtkGDCMPolyDAtaReader).

Do you mean I can use vtkGDCMPolyDataReader and get it's output and pass it
through  ImageStencil.

Thanks

Jothy

On Wed, Mar 9, 2011 at 5:59 PM, Mark Roden <mmroden at gmail.com> wrote:

> Hi Jothy,
>
> You should probably then pipeline the polydata into vtk marching
> cubes, rather than try to rewrite the gdcm reader.
>
> Such a pipeline would look like:
>
> polydatareader
> polydata to image stencil (produces a binary mask from the contours)
> vtkMarchingCubes (volume from the binary mask)
>
> You could put the creation of the binary mask into gdcm, but vtk is
> much better suited for this kind of approach.
>
> Mark
>
> On Wed, Mar 9, 2011 at 9:14 AM, Jothy <jothybasu at gmail.com> wrote:
> > Yes, but I want to create my own code so that I can create a mesh with
> > vtkMarchingCubes.
> >
> > But, the same code works well for python (the one I posted earlier.
> >
> >
> > Thank you
> >
> > Jothy
> >
> >
> > On Wed, Mar 9, 2011 at 5:07 PM, Mark Roden <mmroden at gmail.com> wrote:
> >>
> >> Hi Jothy,
> >>
> >> Have you looked at the code for the vtkGDCMPolyDataReader class?  That
> >> code parses an rtstruct into vtk polydata objects.
> >>
> >> Mark
> >>
> >> On Wed, Mar 9, 2011 at 8:50 AM, Jothy <jothybasu at gmail.com> wrote:
> >> > Hi all,
> >> >
> >> > I am trying to read a rt structure file. Butm when the program crashes
> >> > on
> >> > GetNumberOfItems().
> >> >
> >> > here is the code
> >> >
> >> >       gdcm::Reader reader;
> >> >
> >> >     reader.SetFileName(this->structFileName.toStdString().data());
> >> >
> >> >     //show error msg if file can't be read.
> >> >
> >> >     if( !reader.Read() )
> >> >
> >> >         {
> >> >
> >> >         QMessageBox msgBox;
> >> >
> >> >         msgBox.setText("Can not read the file!");
> >> >
> >> >         msgBox.setIcon(QMessageBox::Critical);
> >> >
> >> >         msgBox.exec();
> >> >
> >> >         }
> >> >
> >> >     reader.Read();
> >> >
> >> >     gdcm::File &file = reader.GetFile();
> >> >
> >> >     // the dataset is the the set of element we are interested in:
> >> >
> >> >     gdcm::DataSet &ds = file.GetDataSet();
> >> >
> >> >     gdcm::Tag troicsq (0x3006,0x0020); // Structure set ROI sequence
> tag
> >> >
> >> >     gdcm::DataElement de=ds.GetDataElement(troicsq);
> >> >
> >> >     gdcm::SequenceOfItems* roicsq=de.GetSequenceOfItems();
> >> >
> >> >     qDebug()<<roicsq.GetNumberOfItems();
> >> >
> >> > It says - request for member "GetNumberOfItems" in "roicsq" ,which is
> of
> >> >
> >> > non-class type gdcm::SequenceOfItems*.
> >> >
> >> > Any hints, what's wrong here?
> >> >
> >> > Thank you
> >> >
> >> >
> >> > Jothy
> >> >
> >> >
> >> >
> >> >
> ------------------------------------------------------------------------------
> >> > Colocation vs. Managed Hosting
> >> > A question and answer guide to determining the best fit
> >> > for your organization - today and in the future.
> >> > http://p.sf.net/sfu/internap-sfd2d
> >> > _______________________________________________
> >> > Gdcm-developers mailing list
> >> > Gdcm-developers at lists.sourceforge.net
> >> > https://lists.sourceforge.net/lists/listinfo/gdcm-developers
> >> >
> >> >
> >
> >
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.vtk.org/pipermail/vtkusers/attachments/20110309/132ce18d/attachment.htm>