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package require vtk
package require vtkinteraction
vtkSphereSource ss
ss SetPhiResolution 10
ss SetThetaResolution 20
vtkSimpleElevationFilter ele
ele SetInputConnection [ss GetOutputPort]
vtkPointDataToCellData pd2cd
pd2cd SetInput [ele GetPolyDataOutput]
# First way or writing
vtkPLYWriter w
w SetInput [pd2cd GetPolyDataOutput]
w SetFileName "plyWriter.ply"
w SetFileTypeToBinary
w SetDataByteOrderToLittleEndian
w SetColorModeToUniformCellColor
w SetColor 255 0 0
w Write
vtkPLYReader r
r SetFileName "plyWriter.ply"
r Update
file delete -force "plyWriter.ply"
vtkPolyDataMapper plyMapper
plyMapper SetInputConnection [r GetOutputPort]
vtkActor plyActor
plyActor SetMapper plyMapper
# Second way or writing - it will map through a lookup table
vtkLookupTable lut
lut Build
vtkPLYWriter w2
w2 SetInput [pd2cd GetPolyDataOutput]
w2 SetFileName "plyWriter.ply"
w2 SetFileTypeToBinary
w2 SetDataByteOrderToLittleEndian
w2 SetColorModeToDefault
w2 SetLookupTable lut
w2 SetArrayName "Elevation"
w2 SetComponent 0
w2 Write
vtkPLYReader r2
r2 SetFileName "plyWriter.ply"
r2 Update
vtkPolyDataMapper plyMapper2
plyMapper2 SetInputConnection [r2 GetOutputPort]
vtkActor plyActor2
plyActor2 SetMapper plyMapper2
plyActor2 AddPosition 1 0 0
# Third way or writing - it will read the previous file with rgb cell color
vtkPLYReader r3
r3 SetFileName "plyWriter.ply"
r3 Update
vtkPLYWriter w3
w3 SetInputConnection [r3 GetOutputPort]
w3 SetFileName "plyWriter.ply"
w3 SetFileTypeToBinary
w3 SetDataByteOrderToLittleEndian
w3 SetColorModeToDefault
w3 SetArrayName "RGB"
w3 SetComponent 0
w3 Write
vtkPLYReader r4
r4 SetFileName "plyWriter.ply"
r4 Update
vtkPolyDataMapper plyMapper3
plyMapper3 SetInputConnection [r4 GetOutputPort]
vtkActor plyActor3
plyActor3 SetMapper plyMapper3
plyActor3 AddPosition 2 0 0
file delete -force "plyWriter.ply"
# 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 plyActor
ren1 AddActor plyActor2
ren1 AddActor plyActor3
renWin SetSize 325 125
iren Initialize
renWin Render
[ren1 GetActiveCamera] Zoom 3.0
iren AddObserver UserEvent {wm deiconify .vtkInteract}
# prevent the tk window from showing up then start the event loop
wm withdraw .
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