This looks like something simple to do but I am having difficulty in representing different scalar values in different colored planes. I have a file that contains the data of the seasons "dados_solo.vtk" and has the scalar value corresponding to the temperature of the soil "soilTemp", and I have to represent the data of temperature of the soil for each season in different colored planes. I had no trouble representing them with vtkStructuredGridGeometryFilter, but now I have to represent in planes, instead of points.
Here is the code I have so far:
package require vtk
package require vtkinteraction
vtkRenderer ren1
vtkRenderWindow renWin
renWin AddRenderer ren1
vtkRenderWindowInteractor iren
iren SetRenderWindow renWin
# Definir o estilo de interacção
vtkInteractorStyleTrackballCamera style
iren SetInteractorStyle style
iren AddObserver UserEvent {wm deiconify .vtkInteract}
vtkDataSetReader reader
reader SetFileName "dados_solo.vtk"
reader SetScalarsName soilTemp
reader Update
vtkDataSetReader readertemp
readertemp SetFileName "dados_solo.vtk"
readertemp SetScalarsName soilTemp
readertemp Update
# Contours of the grid-----------------------------------------------------
vtkStructuredGridOutlineFilter outline
outline SetInput [reader GetStructuredGridOutput]
vtkPolyDataMapper mapOutline
mapOutline SetInput [outline GetOutput]
vtkActor outlineActor
outlineActor SetMapper mapOutline
[outlineActor GetProperty] SetColor 1 0 0
# Points of Grid-----------------------------------------------------
vtkStructuredGridGeometryFilter compPlane
compPlane SetInput [reader GetStructuredGridOutput]
vtkPolyDataMapper planeMapper
planeMapper SetInput [compPlane GetOutput]
eval planeMapper SetScalarRange \
[[[[reader GetOutput] GetPointData] GetScalars] GetRange]
planeMapper ScalarVisibilityOn
vtkActor planeActor
planeActor SetMapper planeMapper
[planeActor GetProperty] SetColor 0 1 0
# -------------------------------------------------------------------
vtkPlane plane
eval plane SetOrigin [[reader GetOutput] GetCenter]
vtkCutter planeCut
planeCut SetInput [reader GetOutput]
planeCut SetCutFunction plane
vtkPolyDataMapper cutMapper
cutMapper SetInput [planeCut GetOutput]
eval cutMapper SetScalarRange \
[[[[reader GetOutput] GetPointData] GetScalars] GetRange]
vtkActor cutActor
cutActor SetMapper cutMapper
# -------------------------------------------------------------------
ren1 AddActor cutActor
ren1 AddActor outlineActor
ren1 AddActor planeActor
renWin SetSize 500 500
ren1 SetBackground 0.1 0.1 0.1
renWin Render
