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67 lines
1.8 KiB
67 lines
1.8 KiB
#
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# these transformations permute medical image data to maintain proper orientation
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# regardless of the acqusition order. After applying these transforms with
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# vtkTransformFilter, a view up of 0,-1,0 will result in the body part
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# facing the viewer.
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# NOTE: some transformations have a -1 scale factor for one of the components.
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# To ensure proper polygon orientation and normal direction, you must
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# apply the vtkPolyDataNormals filter.
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#
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# Naming:
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# si - superior to inferior (top to bottom)
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# is - inferior to superior (bottom to top)
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# ap - anterior to posterior (front to back)
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# pa - posterior to anterior (back to front)
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# lr - left to right
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# rl - right to left
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#
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vtkTransform si
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si SetMatrix 1 0 0 0 0 0 1 0 0 -1 0 0 0 0 0 1
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vtkTransform is
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is SetMatrix 1 0 0 0 0 0 -1 0 0 -1 0 0 0 0 0 1
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vtkTransform ap
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ap Scale 1 -1 1
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vtkTransform pa
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pa Scale 1 -1 -1
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vtkTransform lr
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lr SetMatrix 0 0 -1 0 0 -1 0 0 1 0 0 0 0 0 0 1
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vtkTransform rl
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rl SetMatrix 0 0 1 0 0 -1 0 0 1 0 0 0 0 0 0 1
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#
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# the previous transforms assume radiological views of the slices (viewed from the feet). other
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# modalities such as physical sectioning may view from the head. these transforms modify the original
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# with a 180 rotation about y
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#
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vtkTransform hf
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hf SetMatrix -1 0 0 0 0 1 0 0 0 0 -1 0 0 0 0 1
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vtkTransform hfsi
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hfsi Concatenate [hf GetMatrix]
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hfsi Concatenate [si GetMatrix]
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vtkTransform hfis
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hfis Concatenate [hf GetMatrix]
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hfis Concatenate [is GetMatrix]
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vtkTransform hfap
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hfap Concatenate [hf GetMatrix]
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hfap Concatenate [ap GetMatrix]
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vtkTransform hfpa
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hfpa Concatenate [hf GetMatrix]
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hfpa Concatenate [pa GetMatrix]
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vtkTransform hflr
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hflr Concatenate [hf GetMatrix]
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hflr Concatenate [lr GetMatrix]
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vtkTransform hfrl
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hfrl Concatenate [hf GetMatrix]
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hfrl Concatenate [rl GetMatrix]
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