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107 lines
2.8 KiB
107 lines
2.8 KiB
2 years ago
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package require vtk
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package require vtkinteraction
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vtkLookupTable lut
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lut SetHueRange 0.6 0
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lut SetSaturationRange 1.0 0
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lut SetValueRange 0.5 1.0
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# Read the data: a height field results
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vtkDEMReader demReader
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demReader SetFileName "$VTK_DATA_ROOT/Data/SainteHelens.dem"
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demReader Update
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set lo [lindex [[demReader GetOutput] GetScalarRange] 0]
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set hi [lindex [[demReader GetOutput] GetScalarRange] 1]
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vtkImageDataGeometryFilter surface
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surface SetInputConnection [demReader GetOutputPort]
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vtkWarpScalar warp
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warp SetInputConnection [surface GetOutputPort]
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warp SetScaleFactor 1
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warp UseNormalOn
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warp SetNormal 0 0 1
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vtkPolyDataNormals normals
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normals SetInput [warp GetPolyDataOutput]
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normals SetFeatureAngle 60
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normals SplittingOff
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vtkPolyDataMapper demMapper
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demMapper SetInputConnection [normals GetOutputPort]
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eval demMapper SetScalarRange $lo $hi
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demMapper SetLookupTable lut
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vtkLODActor demActor
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demActor SetMapper demMapper
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# Create some paths
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vtkPoints pts
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pts InsertNextPoint 562669 5.1198e+006 1992.77
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pts InsertNextPoint 562801 5.11618e+006 2534.97
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pts InsertNextPoint 562913 5.11157e+006 1911.1
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pts InsertNextPoint 559849 5.11083e+006 1681.34
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pts InsertNextPoint 562471 5.11633e+006 2593.57
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pts InsertNextPoint 563223 5.11616e+006 2598.31
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pts InsertNextPoint 566579 5.11127e+006 1697.83
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pts InsertNextPoint 569000 5.11127e+006 1697.83
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vtkCellArray lines
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lines InsertNextCell 3
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lines InsertCellPoint 0
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lines InsertCellPoint 1
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lines InsertCellPoint 2
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lines InsertNextCell 5
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lines InsertCellPoint 3
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lines InsertCellPoint 4
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lines InsertCellPoint 5
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lines InsertCellPoint 6
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lines InsertCellPoint 7
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vtkPolyData terrainPaths
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terrainPaths SetPoints pts
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terrainPaths SetLines lines
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vtkProjectedTerrainPath projectedPaths
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projectedPaths SetInput terrainPaths
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projectedPaths SetSource [demReader GetOutput]
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projectedPaths SetHeightOffset 25
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projectedPaths SetHeightTolerance 5
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projectedPaths SetProjectionModeToNonOccluded
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projectedPaths SetProjectionModeToHug
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vtkPolyDataMapper pathMapper
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pathMapper SetInputConnection [projectedPaths GetOutputPort]
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vtkActor paths
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paths SetMapper pathMapper
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[paths GetProperty] SetColor 1 0 0
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# Create the RenderWindow, Renderer and both Actors
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#
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vtkRenderer ren1
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vtkRenderWindow renWin
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renWin AddRenderer ren1
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vtkRenderWindowInteractor iren
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iren SetRenderWindow renWin
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# Add the actors to the renderer, set the background and size
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#
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ren1 AddActor demActor
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ren1 AddActor paths
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ren1 SetBackground .1 .2 .4
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iren AddObserver UserEvent {wm deiconify .vtkInteract}
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iren SetDesiredUpdateRate 5
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[ren1 GetActiveCamera] SetViewUp 0 0 1
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[ren1 GetActiveCamera] SetPosition -99900 -21354 131801
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[ren1 GetActiveCamera] SetFocalPoint 41461 41461 2815
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ren1 ResetCamera
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[ren1 GetActiveCamera] Dolly 1.2
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ren1 ResetCameraClippingRange
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renWin Render
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wm withdraw .
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