[vtkusers] Why image shows in a small size?

[tanyuguo]

Hello,vtkusers:

I'm writting a program that does reconstruction with vtkVolumeRayCastMapper,

in addition,I use a vtkImageViewer to show the xy-plane of the same volume.

Then,the vtkImageViewer shows the image using a automatic size that nearly 

filled the window ,but the volume only has about a half size of the xy-plane.

Why this problem happened? Can anyone help me?

Tan

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