[vtkusers] memory allocation fail for MarchingCubes

[Cory Quammen]

Liu,

That is fairly large DICOM file. If your chosen isovalue picks up a
lot of background noise, the resulting isosurface could be huge.

To solve this, you need to either:

1). Increase your system's RAM

2). Choose a different isovalue that does not produce such a large geometry.

- Cory

On Tue, Feb 16, 2016 at 1:28 AM, Liu_tj <tjlp at netease.com> wrote:
> Hi,
>
> I am a newbie of VTK. Now I need to build 3d model which can be saved as STL
> file from DICOM files. I google it and find some guys mentions that
> MarchingCubes. So I try to load a DICOM series(515K one file, totally 676
> files, around 340M) with the sample code at
> http://www.vtk.org/Wiki/VTK/Examples/Cxx/Modelling/MarchingCubes. Even I set
> the isoValue of vtkMarchingCubes to 1, when the application memory increase
> to around 1.07G, then get a memory bad_alloc exception.
>
> What happen with it? What should I fix this problem?
>
> Thanks in advance.
>
> Liu Peng
>
>
>
>
>
>
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-- 
Cory Quammen
R&D Engineer
Kitware, Inc.