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package require vtk
package require vtkinteraction
# create tensor ellipsoids
# Create the RenderWindow, Renderer and interactive renderer
#
vtkRenderer ren1
vtkRenderWindow renWin
renWin SetMultiSamples 0
renWin AddRenderer ren1
vtkRenderWindowInteractor iren
iren SetRenderWindow renWin
#
# Create tensor ellipsoids
#
# generate tensors
vtkPointLoad ptLoad
ptLoad SetLoadValue 100.0
ptLoad SetSampleDimensions 6 6 6
ptLoad ComputeEffectiveStressOn
ptLoad SetModelBounds -10 10 -10 10 -10 10
# extract plane of data
vtkImageDataGeometryFilter plane
plane SetInputConnection [ptLoad GetOutputPort]
plane SetExtent 2 2 0 99 0 99
# Generate ellipsoids
vtkSphereSource sphere
sphere SetThetaResolution 8
sphere SetPhiResolution 8
vtkTensorGlyph ellipsoids
ellipsoids SetInputConnection [ptLoad GetOutputPort]
ellipsoids SetSourceConnection [sphere GetOutputPort]
ellipsoids SetScaleFactor 10
ellipsoids ClampScalingOn
vtkPolyDataNormals ellipNormals
ellipNormals SetInputConnection [ellipsoids GetOutputPort]
# Map contour
vtkLogLookupTable lut
lut SetHueRange .6667 0.0
vtkPolyDataMapper ellipMapper
ellipMapper SetInputConnection [ellipNormals GetOutputPort]
ellipMapper SetLookupTable lut
plane Update;#force update for scalar range
eval ellipMapper SetScalarRange [[plane GetOutput] GetScalarRange]
vtkActor ellipActor
ellipActor SetMapper ellipMapper
#
# Create outline around data
#
vtkOutlineFilter outline
outline SetInputConnection [ptLoad GetOutputPort]
vtkPolyDataMapper outlineMapper
outlineMapper SetInputConnection [outline GetOutputPort]
vtkActor outlineActor
outlineActor SetMapper outlineMapper
eval [outlineActor GetProperty] SetColor 0 0 0
#
# Create cone indicating application of load
#
vtkConeSource coneSrc
coneSrc SetRadius .5
coneSrc SetHeight 2
vtkPolyDataMapper coneMap
coneMap SetInputConnection [coneSrc GetOutputPort]
vtkActor coneActor
coneActor SetMapper coneMap;
coneActor SetPosition 0 0 11
coneActor RotateY 90
eval [coneActor GetProperty] SetColor 1 0 0
vtkCamera camera
camera SetFocalPoint 0.113766 -1.13665 -1.01919
camera SetPosition -29.4886 -63.1488 26.5807
camera SetViewAngle 24.4617
camera SetViewUp 0.17138 0.331163 0.927879
camera SetClippingRange 1 100
ren1 AddActor ellipActor
ren1 AddActor outlineActor
ren1 AddActor coneActor
ren1 SetBackground 1.0 1.0 1.0
ren1 SetActiveCamera camera
renWin SetSize 400 400
renWin Render
iren AddObserver UserEvent {wm deiconify .vtkInteract}
# prevent the tk window from showing up then start the event loop
wm withdraw .
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