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package require vtk
package require vtkinteraction
# Read a field representing unstructured grid and display it (similar to blow.tcl)
# create a reader and write out field daya
vtkUnstructuredGridReader reader
reader SetFileName "$VTK_DATA_ROOT/Data/blow.vtk"
reader SetScalarsName "thickness9"
reader SetVectorsName "displacement9"
vtkDataSetToDataObjectFilter ds2do
ds2do SetInputConnection [reader GetOutputPort]
# we must be able to write here
if {[catch {set channel [open "UGridField.vtk" "w"]}] == 0 } {
close $channel
vtkDataObjectWriter write
write SetInputConnection [ds2do GetOutputPort]
write SetFileName "UGridField.vtk"
write Write
# Read the field and convert to unstructured grid.
vtkDataObjectReader dor
dor SetFileName "UGridField.vtk"
vtkDataObjectToDataSetFilter do2ds
do2ds SetInputConnection [dor GetOutputPort]
do2ds SetDataSetTypeToUnstructuredGrid
do2ds SetPointComponent 0 "Points" 0
do2ds SetPointComponent 1 "Points" 1
do2ds SetPointComponent 2 "Points" 2
do2ds SetCellTypeComponent "CellTypes" 0
do2ds SetCellConnectivityComponent "Cells" 0
vtkFieldDataToAttributeDataFilter fd2ad
fd2ad SetInput [do2ds GetUnstructuredGridOutput]
fd2ad SetInputFieldToDataObjectField
fd2ad SetOutputAttributeDataToPointData
fd2ad SetVectorComponent 0 "displacement9" 0
fd2ad SetVectorComponent 1 "displacement9" 1
fd2ad SetVectorComponent 2 "displacement9" 2
fd2ad SetScalarComponent 0 "thickness9" 0
# Now start visualizing
vtkWarpVector warp
warp SetInput [fd2ad GetUnstructuredGridOutput]
# extract mold from mesh using connectivity
vtkConnectivityFilter connect
connect SetInputConnection [warp GetOutputPort]
connect SetExtractionModeToSpecifiedRegions
connect AddSpecifiedRegion 0
connect AddSpecifiedRegion 1
vtkDataSetMapper moldMapper
moldMapper SetInputConnection [connect GetOutputPort]
moldMapper ScalarVisibilityOff
vtkActor moldActor
moldActor SetMapper moldMapper
[moldActor GetProperty] SetColor .2 .2 .2
[moldActor GetProperty] SetRepresentationToWireframe
# extract parison from mesh using connectivity
vtkConnectivityFilter connect2
connect2 SetInputConnection [warp GetOutputPort]
connect2 SetExtractionModeToSpecifiedRegions
connect2 AddSpecifiedRegion 2
vtkGeometryFilter parison
parison SetInputConnection [connect2 GetOutputPort]
vtkPolyDataNormals normals2
normals2 SetInputConnection [parison GetOutputPort]
normals2 SetFeatureAngle 60
vtkLookupTable lut
lut SetHueRange 0.0 0.66667
vtkPolyDataMapper parisonMapper
parisonMapper SetInputConnection [normals2 GetOutputPort]
parisonMapper SetLookupTable lut
parisonMapper SetScalarRange 0.12 1.0
vtkActor parisonActor
parisonActor SetMapper parisonMapper
vtkContourFilter cf
cf SetInputConnection [connect2 GetOutputPort]
cf SetValue 0 .5
vtkPolyDataMapper contourMapper
contourMapper SetInputConnection [cf GetOutputPort]
vtkActor contours
contours SetMapper contourMapper
# Create graphics stuff
vtkRenderer ren1
vtkRenderWindow renWin
renWin AddRenderer ren1
vtkRenderWindowInteractor iren
iren SetRenderWindow renWin
# Add the actors to the renderer, set the background and size
ren1 AddActor moldActor
ren1 AddActor parisonActor
ren1 AddActor contours
ren1 ResetCamera
[ren1 GetActiveCamera] Azimuth 60
[ren1 GetActiveCamera] Roll -90
[ren1 GetActiveCamera] Dolly 2
ren1 ResetCameraClippingRange
ren1 SetBackground 1 1 1
renWin SetSize 375 200
iren Initialize
iren AddObserver UserEvent {wm deiconify .vtkInteract}
if {[info commands "rtExMath"] != ""} {
file delete -force "UGridField.vtk"
}
}
# prevent the tk window from showing up then start the event loop
wm withdraw .
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