Have problem on render my data

Support
1

I am new for VTK, and recently my project need it,and i have many question waiting for resolution
Here is one:
when I load my data, i used the following code:

def load_Nifti(data):
Nifti = vtkNIFTIImageReader()
Nifti.SetFileName(data)
Nifti.Update()

volume = Nifti.GetOutput()

return volume

And my data’s original size is (208, 240, 368)
When i render my data, the code is automatic do the resample to 111,which i didn’t want to.
Because i found that when i used:

volume.GetBounds()

I get :

(0.0, 157.15559297800064, 0.0, 157.66013169288635, 0.0, 100.6149368584156)
obvious that is the resample size,which i had calculated

How can i render my original data?

2

image
image1824×1409 66 KB

That is what mesh Axis see, it can show that the size become the resample size

3

Hello,

A 1x1x1 resample is no resampling (you render all the voxels). Why do you think the renderer is skipping data?

regards,

Paulo

4

Because the data original spacing and size are：

(0.4282168745994568, 0.6596658229827881, 0.48606249690055847)
(208, 240, 368)

And after render, the size is become (158, 158, 101), and that size is when resample to 1x1x1

5

What class volume belongs to?

6

I figured it out.
After render，the volume become physical size，it didn’t do any other opera
And i hadn’t thought that before
Thank you very much for your help

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