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
|
package require vtk
package require vtkinteraction
# This example demonstrates the use of the linear extrusion filter and
# the USA state outline vtk dataset. It also tests the triangulation filter.
# get the interactor ui
# Create the RenderWindow, Renderer and both Actors
vtkRenderer ren1
vtkRenderWindow renWin
renWin AddRenderer ren1
vtkRenderWindowInteractor iren
iren SetRenderWindow renWin
# create pipeline - read data
#
vtkPolyDataReader reader
reader SetFileName "$VTK_DATA_ROOT/Data/usa.vtk"
# okay, now create some extrusion filters with actors for each US state
vtkMath math
for {set i 0} {$i < 51} {incr i} {
vtkGeometryFilter extractCell$i
extractCell$i SetInputConnection [reader GetOutputPort]
extractCell$i CellClippingOn
extractCell$i SetCellMinimum $i
extractCell$i SetCellMaximum $i
vtkTriangleFilter tf$i
tf$i SetInputConnection [extractCell$i GetOutputPort]
vtkLinearExtrusionFilter extrude$i
extrude$i SetInputConnection [tf$i GetOutputPort]
extrude$i SetExtrusionType 1
extrude$i SetVector 0 0 1
extrude$i CappingOn
extrude$i SetScaleFactor [math Random 1 10]
vtkPolyDataMapper mapper$i
mapper$i SetInputConnection [extrude$i GetOutputPort]
vtkActor actor$i
actor$i SetMapper mapper$i
[actor$i GetProperty] SetColor [math Random 0 1] \
[math Random 0 1] [math Random 0 1]
ren1 AddActor actor$i
}
ren1 SetBackground 1 1 1
renWin SetSize 500 250
set cam1 [ren1 GetActiveCamera]
$cam1 SetClippingRange 10.2299 511.497
$cam1 SetPosition -119.669 -25.5502 79.0198
$cam1 SetFocalPoint -115.96 41.6709 1.99546
$cam1 SetViewUp -0.0013035 0.753456 0.657497
# render the image
#
iren AddObserver UserEvent {wm deiconify .vtkInteract}
renWin Render
# prevent the tk window from showing up then start the event loop
wm withdraw .
|
