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package require vtk
package require vtkinteraction
package require vtktesting
# Demonstrate the generation of a structured grid from field data. The output
# should be similar to combIso.tcl.
#
# NOTE: This test only works if the current directory is writable
#
if {[catch {set channel [open "test.tmp" "w"]}] == 0 } {
close $channel
file delete -force "test.tmp"
# get the interactor ui
# Create a reader and write out the field
vtkPLOT3DReader comb
comb SetXYZFileName "$VTK_DATA_ROOT/Data/combxyz.bin"
comb SetQFileName "$VTK_DATA_ROOT/Data/combq.bin"
comb SetScalarFunctionNumber 100
vtkStructuredGridWriter wsg
wsg SetInputConnection [comb GetOutputPort]
wsg SetFileTypeToBinary
wsg SetFileName "combsg.vtk"
wsg Write
vtkStructuredGridReader pl3d
pl3d SetFileName "combsg.vtk"
vtkDataSetToDataObjectFilter ds2do
ds2do SetInputConnection [pl3d GetOutputPort]
vtkDataObjectWriter writer
writer SetInputConnection [ds2do GetOutputPort]
writer SetFileName "SGridField.vtk"
writer Write
# read the field
vtkDataObjectReader dor
dor SetFileName "SGridField.vtk"
vtkDataObjectToDataSetFilter do2ds
do2ds SetInputConnection [dor GetOutputPort]
do2ds SetDataSetTypeToStructuredGrid
do2ds SetDimensionsComponent "Dimensions" 0
do2ds SetPointComponent 0 "Points" 0
do2ds SetPointComponent 1 "Points" 1
do2ds SetPointComponent 2 "Points" 2
vtkFieldDataToAttributeDataFilter fd2ad
fd2ad SetInput [do2ds GetStructuredGridOutput]
fd2ad SetInputFieldToDataObjectField
fd2ad SetOutputAttributeDataToPointData
fd2ad SetVectorComponent 0 "Momentum" 0
fd2ad SetVectorComponent 1 "Momentum" 1
fd2ad SetVectorComponent 2 "Momentum" 2
fd2ad SetScalarComponent 0 "Density" 0
# create pipeline
#
vtkContourFilter iso
iso SetInputConnection [fd2ad GetOutputPort]
iso SetValue 0 .38
vtkPolyDataNormals normals
normals SetInputConnection [iso GetOutputPort]
normals SetFeatureAngle 45
vtkPolyDataMapper isoMapper
isoMapper SetInputConnection [normals GetOutputPort]
isoMapper ScalarVisibilityOff
vtkActor isoActor
isoActor SetMapper isoMapper
eval [isoActor GetProperty] SetColor $bisque
vtkStructuredGridOutlineFilter outline
outline SetInput [fd2ad GetStructuredGridOutput]
vtkPolyDataMapper outlineMapper
outlineMapper SetInputConnection [outline GetOutputPort]
vtkActor outlineActor
outlineActor SetMapper outlineMapper
# Create the RenderWindow, Renderer and both Actors
#
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 outlineActor
ren1 AddActor isoActor
ren1 SetBackground 1 1 1
renWin SetSize 250 250
ren1 SetBackground 0.1 0.2 0.4
set cam1 [ren1 GetActiveCamera]
$cam1 SetClippingRange 3.95297 50
$cam1 SetFocalPoint 9.71821 0.458166 29.3999
$cam1 SetPosition 2.7439 -37.3196 38.7167
$cam1 SetViewUp -0.16123 0.264271 0.950876
# render the image
#
iren AddObserver UserEvent {wm deiconify .vtkInteract}
renWin Render
#
# cleanup
file delete -force "combsg.vtk"
file delete -force "SGridField.vtk"
# prevent the tk window from showing up then start the event loop
wm withdraw .
}
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