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201 lines
7.1 KiB
201 lines
7.1 KiB
# This example demonstrates the use of vtkXYPlotActor to display three
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# probe lines using three different techniques. In this example, we are
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# loading data using the vtkPLOT3DReader. We are using the vtkProbeFilter
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# to extract the underlying point data along three probe lines.
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#
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# First we include the VTK Tcl packages which will make available
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# all of the vtk commands to Tcl.
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#
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package require vtk
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package require vtkinteraction
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# Create a PLOT3D reader and load the data.
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#
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vtkPLOT3DReader pl3d
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pl3d SetXYZFileName "$VTK_DATA_ROOT/Data/combxyz.bin"
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pl3d SetQFileName "$VTK_DATA_ROOT/Data/combq.bin"
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pl3d SetScalarFunctionNumber 100
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pl3d SetVectorFunctionNumber 202
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pl3d Update
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# Create three the line source to use for the probe lines.
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vtkLineSource line
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line SetResolution 30
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# Move the line into place and create the probe filter. For vtkProbeFilter,
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# the probe line is the input, and the underlying data set is the source.
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vtkTransform transL1
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transL1 Translate 3.7 0.0 28.37
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transL1 Scale 5 5 5
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transL1 RotateY 90
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vtkTransformPolyDataFilter tf
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tf SetInputConnection [line GetOutputPort]
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tf SetTransform transL1
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vtkProbeFilter probe
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probe SetInputConnection [tf GetOutputPort]
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probe SetSource [pl3d GetOutput]
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# Move the line again and create another probe filter.
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vtkTransform transL2
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transL2 Translate 9.2 0.0 31.20
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transL2 Scale 5 5 5
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transL2 RotateY 90
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vtkTransformPolyDataFilter tf2
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tf2 SetInputConnection [line GetOutputPort]
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tf2 SetTransform transL2
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vtkProbeFilter probe2
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probe2 SetInputConnection [tf2 GetOutputPort]
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probe2 SetSource [pl3d GetOutput]
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# Move the line again and create a third probe filter.
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vtkTransform transL3
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transL3 Translate 13.27 0.0 33.40
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transL3 Scale 4.5 4.5 4.5
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transL3 RotateY 90
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vtkTransformPolyDataFilter tf3
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tf3 SetInputConnection [line GetOutputPort]
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tf3 SetTransform transL3
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vtkProbeFilter probe3
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probe3 SetInputConnection [tf3 GetOutputPort]
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probe3 SetSource [pl3d GetOutput]
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# Create a vtkAppendPolyData to merge the output of the three probe filters
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# into one data set.
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vtkAppendPolyData appendF
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appendF AddInput [probe GetPolyDataOutput]
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appendF AddInput [probe2 GetPolyDataOutput]
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appendF AddInput [probe3 GetPolyDataOutput]
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# Create a tube filter to represent the lines as tubes. Set up the associated
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# mapper and actor.
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vtkTubeFilter tuber
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tuber SetInputConnection [appendF GetOutputPort]
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tuber SetRadius 0.1
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vtkPolyDataMapper lineMapper
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lineMapper SetInputConnection [tuber GetOutputPort]
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vtkActor lineActor
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lineActor SetMapper lineMapper
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# Create an xy-plot using the output of the 3 probe filters as input.
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# The x-values we are plotting are arc length.
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vtkXYPlotActor xyplot
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xyplot AddInput [probe GetOutput]
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xyplot AddInput [probe2 GetOutput]
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xyplot AddInput [probe3 GetOutput]
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[xyplot GetPositionCoordinate] SetValue 0.0 0.67 0
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[xyplot GetPosition2Coordinate] SetValue 1.0 0.33 0;#relative to Position
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xyplot SetXValuesToArcLength
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xyplot SetNumberOfXLabels 6
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xyplot SetTitle "Pressure vs. Arc Length (Zoomed View)"
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xyplot SetXTitle ""
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xyplot SetYTitle "P"
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xyplot SetXRange .1 .35
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xyplot SetYRange .2 .4
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[xyplot GetProperty] SetColor 0 0 0
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[xyplot GetProperty] SetLineWidth 2
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# Set text prop color (same color for backward compat with test)
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# Assign same object to all text props
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set tprop [xyplot GetTitleTextProperty]
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eval $tprop SetColor [[xyplot GetProperty] GetColor]
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xyplot SetAxisTitleTextProperty $tprop
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xyplot SetAxisLabelTextProperty $tprop
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# Create an xy-plot using the output of the 3 probe filters as input.
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# The x-values we are plotting are normalized arc length.
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vtkXYPlotActor xyplot2
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xyplot2 AddInput [probe GetOutput]
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xyplot2 AddInput [probe2 GetOutput]
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xyplot2 AddInput [probe3 GetOutput]
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[xyplot2 GetPositionCoordinate] SetValue 0.00 0.33 0
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[xyplot2 GetPosition2Coordinate] SetValue 1.0 0.33 0;#relative to Position
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xyplot2 SetXValuesToNormalizedArcLength
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xyplot2 SetNumberOfXLabels 6
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xyplot2 SetTitle "Pressure vs. Normalized Arc Length"
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xyplot2 SetXTitle ""
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xyplot2 SetYTitle "P"
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xyplot2 PlotPointsOn
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xyplot2 PlotLinesOff
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[xyplot2 GetProperty] SetColor 1 0 0
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[xyplot2 GetProperty] SetPointSize 2
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# Set text prop color (same color for backward compat with test)
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# Assign same object to all text props
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set tprop [xyplot2 GetTitleTextProperty]
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eval $tprop SetColor [[xyplot2 GetProperty] GetColor]
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xyplot2 SetAxisTitleTextProperty $tprop
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xyplot2 SetAxisLabelTextProperty $tprop
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# Create an xy-plot using the output of the 3 probe filters as input.
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# The x-values we are plotting are the underlying point data values.
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vtkXYPlotActor xyplot3
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xyplot3 AddInput [probe GetOutput]
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xyplot3 AddInput [probe2 GetOutput]
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xyplot3 AddInput [probe3 GetOutput]
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[xyplot3 GetPositionCoordinate] SetValue 0.0 0.0 0
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[xyplot3 GetPosition2Coordinate] SetValue 1.0 0.33 0;#relative to Position
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xyplot3 SetXValuesToIndex
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xyplot3 SetNumberOfXLabels 6
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xyplot3 SetTitle "Pressure vs. Point Id"
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xyplot3 SetXTitle "Probe Length"
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xyplot3 SetYTitle "P"
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xyplot3 PlotPointsOn
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[xyplot3 GetProperty] SetColor 0 0 1
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[xyplot3 GetProperty] SetPointSize 3
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# Set text prop color (same color for backward compat with test)
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# Assign same object to all text props
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set tprop [xyplot3 GetTitleTextProperty]
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eval $tprop SetColor [[xyplot3 GetProperty] GetColor]
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xyplot3 SetAxisTitleTextProperty $tprop
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xyplot3 SetAxisLabelTextProperty $tprop
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# Draw an outline of the PLOT3D data set.
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vtkStructuredGridOutlineFilter outline
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outline SetInputConnection [pl3d GetOutputPort]
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vtkPolyDataMapper outlineMapper
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outlineMapper SetInputConnection [outline GetOutputPort]
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vtkActor outlineActor
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outlineActor SetMapper outlineMapper
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[outlineActor GetProperty] SetColor 0 0 0
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# Create the Renderers, RenderWindow, and RenderWindowInteractor.
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#
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vtkRenderer ren1
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vtkRenderer ren2
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vtkRenderWindow renWin
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renWin AddRenderer ren1
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renWin AddRenderer ren2
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vtkRenderWindowInteractor iren
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iren SetRenderWindow renWin
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# Set the background, viewport (necessary because we want to have the
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# renderers draw to different parts of the render window) of the first
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# renderer. Add the outline and line actors to the renderer.
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ren1 SetBackground 0.6784 0.8471 0.9020
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ren1 SetViewport 0 0 .5 1
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ren1 AddActor outlineActor
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ren1 AddActor lineActor
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# Set the background and viewport of the second renderer. Add the xy-plot
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# actors to the renderer. Set the size of the render window.
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ren2 SetBackground 1 1 1
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ren2 SetViewport 0.5 0.0 1.0 1.0
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ren2 AddActor2D xyplot
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ren2 AddActor2D xyplot2
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ren2 AddActor2D xyplot3
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renWin SetSize 500 250
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# Set up the camera parameters.
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set cam1 [ren1 GetActiveCamera]
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$cam1 SetClippingRange 3.95297 100
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$cam1 SetFocalPoint 8.88908 0.595038 29.3342
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$cam1 SetPosition -12.3332 31.7479 41.2387
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$cam1 SetViewUp 0.060772 -0.319905 0.945498
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iren Initialize
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# Set the user method (bound to key 'u')
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#
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iren AddObserver UserEvent {wm deiconify .vtkInteract}
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# Withdraw the default tk window.
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wm withdraw .
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