[vtkusers] vtkImageData Spacing

[Jonathan Ruiz Peinado]

Ok, seems that method SetOutputSpacingToDefault() do what I need

2012/7/4 Jonathan Ruiz Peinado <jonathan.ruiz3 at gmail.com>

> If I wasn't wrong about spacing in first place, how can i set the spacing
> for an image reslice output? , seems that is 1.0 1.0 1.0   wahtever the
> input was.
>
> vtkImageReslice reslice_rotation_z = new vtkImageReslice();
>
> reslice_rotation_z.SetInput( DicomStudio.dicomImage.getOutput());
> reslice_rotation_z.SetInformationInput(
> DicomStudio.dicomImage.getOutput());
> reslice_rotation_z.SetResliceAxes(transform_matrix_rotation_z);
> reslice_rotation_z.SetInterpolationModeToLinear();
> reslice_rotation_z.Update();
>
> using vtk 5.6
>
> input has spacing  0.3 0.3 0.5 nad out put has 1.0 1.0 1.0
>
>
> 2012/7/4 Jonathan Ruiz Peinado <jonathan.ruiz3 at gmail.com>
>
>> Hi, It's a concept question, I tough that vtkImageData spacing was the
>> real distance between each pixel or pixel size, so if spacing[0] is 0.5 the
>> lenght of a pixel along the axis is 0.5 in units(mm).
>>
>> But After use vtkImageReslice, the output spaicng change to 1.0 1.0 1.0
>> where the input spacing was 0.3 0.3 0.5, I though it would chage the size
>> of my image data, the real size, but seems that the image still having the
>> same real size, so I got to be wrong about spacing.
>>
>>
>> Is not "spacing" the space between cells/points/pixels ?
>> If I got spacing = 1.0 means that I got a cells/points/pixels each 1.0
>> units (mm) ?
>>
>> Thanks
>>
>
>
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