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from vtkmodules.test import Testing as vtkTesting
class TestFilteredUpdateStatesFromObjects(vtkTesting.vtkTest):
def test(self):
from vtkmodules.vtkSerializationManager import vtkObjectManager
from vtkmodules.vtkRenderingCore import vtkRenderWindow, vtkRenderer, vtkRenderWindowInteractor, vtkPolyDataMapper, vtkActor
from vtkmodules.vtkFiltersSources import vtkSphereSource, vtkConeSource
# from vtkmodules.vtkCommonCore import vtkLogger
import json
sphereActor = vtkActor(mapper = (vtkSphereSource() >> vtkPolyDataMapper()).last)
coneActor = vtkActor(mapper = (vtkConeSource() >> vtkPolyDataMapper()).last)
sphereRenderWindow = vtkRenderWindow()
sphereRenderer = vtkRenderer()
sphereRenderWindow.AddRenderer(sphereRenderer)
sphereRenderer.AddActor(sphereActor)
coneRenderWindow = vtkRenderWindow()
coneRenderer = vtkRenderer()
coneRenderWindow.AddRenderer(coneRenderer)
coneRenderer.AddActor(coneActor)
sphereInteractor = vtkRenderWindowInteractor(render_window = sphereRenderWindow)
coneInteractor = vtkRenderWindowInteractor(render_window = coneRenderWindow)
sphereInteractor.Render()
coneInteractor.Render()
manager = vtkObjectManager()
manager.Initialize()
# manager.SetObjectManagerLogVerbosity(vtkLogger.VERBOSITY_WARNING)
# manager.serializer.SetSerializerLogVerbosity(vtkLogger.VERBOSITY_WARNING)
sphereRenderWindowId = manager.RegisterObject(sphereRenderWindow)
coneRenderWindowId = manager.RegisterObject(coneRenderWindow)
manager.UpdateStatesFromObjects()
# Keep track of the property IDs for verification later
spherePropertyId = manager.GetId(sphereActor.property)
conePropertyId = manager.GetId(coneActor.property)
sphereActor.property.opacity = 0.5 # Change sphere opacity to see if it gets updated correctly
manager.UpdateStatesFromObjects([sphereRenderWindowId])
self.assertIn("vtk-object-manager-kept-alive", json.loads(manager.GetState(sphereRenderWindowId)), "vtk-object-manager-kept-alive key not found in sphere render window state")
# verify that the sphere opacity change is reflected in the state
self.assertEqual(json.loads(manager.GetState(spherePropertyId))['Opacity'], 0.5)
sphereActor.property.opacity = 1.0 # Change sphere opacity back to original value
coneActor.property.opacity = 0.3 # Change cone opacity to see if it gets updated correctly
manager.UpdateStatesFromObjects([coneRenderWindowId])
self.assertIn("vtk-object-manager-kept-alive", json.loads(manager.GetState(coneRenderWindowId)), "vtk-object-manager-kept-alive key not found in cone render window state")
# verify that the cone opacity change is reflected in the state
self.assertEqual(json.loads(manager.GetState(conePropertyId))['Opacity'], 0.3)
# Since we only updated the cone render window, the sphere's opacity should not have changed
self.assertEqual(json.loads(manager.GetState(spherePropertyId))['Opacity'], 0.5)
if __name__ == "__main__":
vtkTesting.main([(TestFilteredUpdateStatesFromObjects, 'test')])
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