1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
|
package require vtk
package require vtktesting
set NUMBER_OF_PIECES 5
# Generate implicit model of a sphere
#
# Create renderer stuff
#
vtkRenderer ren1
vtkRenderWindow renWin
renWin AddRenderer ren1
vtkRenderWindowInteractor iren
iren SetRenderWindow renWin
# create pipeline that handles ghost cells
vtkSphereSource sphere
sphere SetRadius 3
sphere SetPhiResolution 100
sphere SetThetaResolution 150
# sphere AddObserver StartEvent {tk_messageBox -message "Executing with piece [[sphere GetOutput] GetUpdatePiece]"}
# Just playing with an alternative that is not currently used.
proc NotUsed {} {
# This filter actually spoils the example because it asks for the whole input.
# The only reason it is here is because sphere complains it cannot generate ghost cells.
vtkExtractPolyDataPiece piece
piece SetInputConnection [sphere GetOutputPort]
# purposely put seams in here.
piece CreateGhostCellsOff
# purposely put seams in here.
vtkPolyDataNormals pdn
pdn SetInputConnection [piece GetOutputPort]
}
# Just playing with an alternative that is not currently used.
vtkDecimatePro deci
deci SetInputConnection [sphere GetOutputPort]
# this did not remove seams as I thought it would
deci BoundaryVertexDeletionOff
#deci PreserveTopologyOn
# Since quadric Clustering does not handle borders properly yet,
# the pieces will have dramatic "eams"
vtkQuadricClustering q
q SetInputConnection [sphere GetOutputPort]
q SetNumberOfXDivisions 5
q SetNumberOfYDivisions 5
q SetNumberOfZDivisions 10
q UseInputPointsOn
vtkPolyDataStreamer streamer
#streamer SetInputConnection [deci GetOutputPort]
streamer SetInputConnection [q GetOutputPort]
#streamer SetInputConnection [pdn GetOutputPort]
streamer SetNumberOfStreamDivisions $NUMBER_OF_PIECES
vtkPolyDataMapper mapper
mapper SetInputConnection [streamer GetOutputPort]
mapper ScalarVisibilityOff
mapper SetPiece 0
mapper SetNumberOfPieces 2
mapper ImmediateModeRenderingOn
vtkActor actor
actor SetMapper mapper
eval [actor GetProperty] SetColor $english_red
# Add the actors to the renderer, set the background and size
#
[ren1 GetActiveCamera] SetPosition 5 5 10
[ren1 GetActiveCamera] SetFocalPoint 0 0 0
ren1 AddActor actor
ren1 SetBackground 1 1 1
renWin SetSize 300 300
iren Initialize
# render the image
#
iren AddObserver UserEvent {wm deiconify .vtkInteract}
# prevent the tk window from showing up then start the event loop
wm withdraw .
|
