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