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#!/usr/bin/env python
from vtkmodules.vtkCommonExecutionModel import vtkStreamingDemandDrivenPipeline
from vtkmodules.vtkFiltersGeometry import vtkStructuredGridGeometryFilter
from vtkmodules.vtkIOParallel import vtkPlot3DMetaReader
from vtkmodules.vtkRenderingCore import (
vtkActor,
vtkCamera,
vtkPolyDataMapper,
vtkRenderWindow,
vtkRenderWindowInteractor,
vtkRenderer,
)
import vtkmodules.vtkInteractionStyle
import vtkmodules.vtkRenderingFreeType
import vtkmodules.vtkRenderingOpenGL2
from vtkmodules.util.misc import vtkGetDataRoot
VTK_DATA_ROOT = vtkGetDataRoot()
renWin = vtkRenderWindow()
iren = vtkRenderWindowInteractor()
iren.SetRenderWindow(renWin)
r = vtkPlot3DMetaReader()
r.SetFileName("%s/Data/test.p3d" % VTK_DATA_ROOT)
r.UpdateInformation()
outInfo = r.GetOutputInformation(0)
l = outInfo.Length(vtkStreamingDemandDrivenPipeline.TIME_STEPS())
if l != 2:
raise "Error: wrong number of time steps: %d. Should be 2" % l
outInfo.Set(vtkStreamingDemandDrivenPipeline.UPDATE_TIME_STEP(), 3.5)
r.Update()
outInfo.Set(vtkStreamingDemandDrivenPipeline.UPDATE_TIME_STEP(), 4.5)
r.Update()
output = r.GetOutput().GetBlock(0)
plane = vtkStructuredGridGeometryFilter()
plane.SetInputData(output)
plane.SetExtent(25,25,0,100,0,100)
mapper = vtkPolyDataMapper()
mapper.SetInputConnection(plane.GetOutputPort())
mapper.SetScalarRange(output.GetPointData().GetScalars().GetRange())
actor = vtkActor()
actor.SetMapper(mapper)
ren = vtkRenderer()
camera = vtkCamera()
ren.SetActiveCamera(camera)
renWin.AddRenderer(ren)
ren.AddActor(actor)
camera.SetViewUp(0,1,0)
camera.SetFocalPoint(0,0,0)
camera.SetPosition(1,0,0)
ren.ResetCamera()
camera.Dolly(1.25)
ren.ResetCameraClippingRange()
renWin.SetSize(400,300)
renWin.Render()
iren.Initialize()
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