[vtkusers] VTK beginner questions

[Jérôme]

Hi David,
- Sorry for this out-of-topic answer, Ali -
By reading the vtkVoxelModeller documentation, it outputs a volume
with scalar type VTK_BIT. I think that vtkMarchingCubes won't be able
to find a contour of value 0.5 in this case.

My 2c ;)

Jerome

2010/11/29 David Doria <daviddoria at gmail.com>:
> On Mon, Nov 29, 2010 at 5:17 AM, Ali Habib <ali.mahmoud.habib at gmail.com> wrote:
>> Hi All
>> I want to ask about the following
>> 1. I use vttransform class to transfer for example point from position x,y,z
>> to x1,y1,z1 I want to know what's the dimension of the transformation mm. cm
>> , meter or what.
>
> vtkTransform just uses the same "dimensionless" quantities that your
> data uses. You just specify the number and you have to interpret the
> units yourself.
>
>> 2. I use vtkmarching cube to get values(0.500) I need the iso surface 500
>> what shall I do
>
> Here is an example of vtkDiscreteMarchingCubes:
> http://www.vtk.org/Wiki/VTK/Examples/Cxx/Medical/GenerateModelsFromLabels
>
> The example of vtkMarchingCubes I was never able to get to work:
> http://www.vtk.org/Wiki/VTK/Examples/Broken/MarchingCubes
>
> David
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