You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
52 lines
1.1 KiB
52 lines
1.1 KiB
2 years ago
|
package require vtk
|
||
|
|
|
||
|
|
# do alpha-blending of two images, but also clip with stencil
|
||
|
|
|
||
|
|
vtkBMPReader reader1
|
||
|
|
reader1 SetFileName "$VTK_DATA_ROOT/Data/masonry.bmp"
|
||
|
|
|
||
|
|
vtkPNMReader reader2
|
||
|
|
reader2 SetFileName "$VTK_DATA_ROOT/Data/B.pgm"
|
||
|
|
|
||
|
|
vtkLookupTable table
|
||
|
|
table SetTableRange 0 127
|
||
|
|
table SetValueRange 0.0 1.0
|
||
|
|
table SetSaturationRange 0.0 0.0
|
||
|
|
table SetHueRange 0.0 0.0
|
||
|
|
table SetAlphaRange 0.9 0.0
|
||
|
|
table Build
|
||
|
|
|
||
|
|
vtkImageTranslateExtent translate
|
||
|
|
translate SetInputConnection [reader2 GetOutputPort]
|
||
|
|
translate SetTranslation 60 60 0
|
||
|
|
|
||
|
|
vtkSphere sphere
|
||
|
|
sphere SetCenter 121 131 0
|
||
|
|
sphere SetRadius 70
|
||
|
|
|
||
|
|
vtkImplicitFunctionToImageStencil functionToStencil
|
||
|
|
functionToStencil SetInput sphere
|
||
|
|
[functionToStencil GetOutput] SetUpdateExtent 0 255 0 255 0 0
|
||
|
|
[functionToStencil GetOutput] Update
|
||
|
|
|
||
|
|
vtkImageBlend blend
|
||
|
|
blend SetInput 0 [reader1 GetOutput]
|
||
|
|
blend SetInput 1 [translate GetOutput]
|
||
|
|
blend SetOpacity 1 0.8
|
||
|
|
blend SetStencil [functionToStencil GetOutput]
|
||
|
|
|
||
|
|
vtkImageViewer viewer
|
||
|
|
viewer SetInputConnection [blend GetOutputPort]
|
||
|
|
viewer SetColorWindow 255.0
|
||
|
|
viewer SetColorLevel 127.5
|
||
|
|
viewer SetZSlice 0
|
||
|
|
viewer Render
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|