#################################################################################################### # # Invoking X3D model self-test: # # $ python BoxSwitch.py # # Python package x3d.py package is available on PyPI for import. # This approach simplifies Python X3D deployment and use. # https://pypi.org/project/x3d # # Installation: # pip install x3d # or # python -m pip install x3d # # Developer options for loading x3d package in other Python programs: # # from x3d import * # preferred approach, terser source that avoids x3d.* class prefixes # # or # import x3d # traditional way to subclass x3d package, all classes require x3d.* prefix, # # but python source is very verbose, for example x3d.Material x3d.Shape etc. # # X3dToPython.xslt stylesheet insertPackagePrefix=true supports this option. # # Project home page: # X3D Python Scene Access Interface Library (X3DPSAIL) # # https://www.web3d.org/x3d/stylesheets/python/python.html # Conversion generator: # https://www.web3d.org/x3d/stylesheets/X3dToPython.xslt # #################################################################################################### from x3d import * newModel=X3D(profile='Immersive',version='3.3', head=head( children=[ meta(content='BoxSwitch.x3d',name='title'), meta(content='Don Brutzman',name='creator'), meta(content='30 December 2015',name='created'), meta(content='26 March 2026',name='modified'), meta(content='Demonstrate simple Switch animation by sequencing through a set of Box nodes that are each covered by a different ImageTexture.',name='description'), meta(content='CubeWithLabeledSidesViewpointSequencer.png',name='Image'), meta(content='BoxSwitch.mp4',name='MovingImage'), meta(content='CubeWithLabeledSides.x3d',name='reference'), meta(content='images/CubeSideImages.pdf',name='drawing'), meta(content='images/CubeSideImages.vsd',name='drawing'), meta(content='https://www.web3d.org/x3d/content/examples/X3dForAdvancedModeling/Animation/BoxSwitch.x3d',name='identifier'), meta(content='X3D-Edit 4.0, https://www.web3d.org/x3d/tools/X3D-Edit',name='generator'), meta(content='../license.html',name='license')]), Scene=Scene( children=[ WorldInfo(title='BoxSwitch.x3d'), Background(skyColor=[(0.8,0.8,0.9)]), NavigationInfo(type=["EXAMINE","FLY","WALK","ANY"]), Switch(DEF='BoxSwitcher',whichChoice=-1, children=[ Shape( geometry=Box(DEF='UnitBox'), appearance=Appearance( texture=ImageTexture(url=["images/RedImage.png","https://www.web3d.org/x3d/content/examples/X3dForAdvancedModeling/GeometricShapes/images/RedImage.png"]))), Shape( geometry=Box(USE='UnitBox'), appearance=Appearance( texture=ImageTexture(url=["images/GreenImage.png","https://www.web3d.org/x3d/content/examples/X3dForAdvancedModeling/GeometricShapes/images/GreenImage.png"]))), Shape( geometry=Box(USE='UnitBox'), appearance=Appearance( texture=ImageTexture(url=["images/TurquoiseImage.png","https://www.web3d.org/x3d/content/examples/X3dForAdvancedModeling/GeometricShapes/images/TurquoiseImage.png"]))), Shape( geometry=Box(USE='UnitBox'), appearance=Appearance( texture=ImageTexture(url=["images/YellowImage.png","https://www.web3d.org/x3d/content/examples/X3dForAdvancedModeling/GeometricShapes/images/YellowImage.png"]))), Shape( geometry=Box(USE='UnitBox'), appearance=Appearance( texture=ImageTexture(url=["images/WhiteImage.png","https://www.web3d.org/x3d/content/examples/X3dForAdvancedModeling/GeometricShapes/images/WhiteImage.png"]))), Shape( geometry=Box(USE='UnitBox'), appearance=Appearance( texture=ImageTexture(url=["images/GreyImage.png","https://www.web3d.org/x3d/content/examples/X3dForAdvancedModeling/GeometricShapes/images/GreyImage.png"])))]), Comment('Animated Box'), TimeSensor(DEF='Clock',cycleInterval=12,loop=True), IntegerSequencer(DEF='Sequencer',key=[0,0.1667,0.3333,0.5,0.6667,0.8333,1],keyValue=[0,1,2,3,4,5,0]), ROUTE(fromField='fraction_changed',fromNode='Clock',toField='set_fraction',toNode='Sequencer'), ROUTE(fromField='value_changed',fromNode='Sequencer',toField='whichChoice',toNode='BoxSwitcher'), Viewpoint(DEF='OrbitingView',description='Orbiting view',orientation=(0,1,0,-1.57),position=(-8,0,0)), Comment('Animated Viewpoint, orbiting about the origin'), PositionInterpolator(DEF='CircularPathPositionInterpolator',key=[0,0.02778,0.05556,0.08333,0.11111,0.13889,0.16667,0.19444,0.22222,0.25,0.27778,0.30556,0.33333,0.36111,0.38889,0.41667,0.44444,0.47222,0.5,0.52778,0.55556,0.58333,0.61111,0.63889,0.66667,0.69444,0.72222,0.75,0.77778,0.80556,0.83333,0.86111,0.88889,0.91667,0.94444,0.97222,1],keyValue=[(0,0,8),(1.389,0,7.878),(2.736,0,7.518),(4,0,6.928),(5.142,0,6.128),(6.128,0,5.142),(6.928,0,4),(7.518,0,2.736),(7.878,0,1.389),(8,0,0),(7.878,0,-1.389),(7.518,0,-2.736),(6.928,0,-4),(6.128,0,-5.142),(5.142,0,-6.128),(4,0,-6.928),(2.736,0,-7.518),(1.389,0,-7.878),(0,0,-8),(-1.389,0,-7.878),(-2.736,0,-7.518),(-4,0,-6.928),(-5.142,0,-6.128),(-6.128,0,-5.142),(-6.928,0,-4),(-7.518,0,-2.736),(-7.878,0,-1.389),(-8,0,-0),(-7.878,0,1.389),(-7.518,0,2.736),(-6.928,0,4),(-6.128,0,5.142),(-5.142,0,6.128),(-4,0,6.928),(-2.736,0,7.518),(-1.389,0,7.878),(0,0,8)]), ROUTE(fromField='fraction_changed',fromNode='Clock',toField='set_fraction',toNode='CircularPathPositionInterpolator'), ROUTE(fromField='value_changed',fromNode='CircularPathPositionInterpolator',toField='position',toNode='OrbitingView'), OrientationInterpolator(DEF='CenterFacingOrientationInterpolator',key=[0,0.3333,0.6667,1],keyValue=[(0,1,0,0),(0,1,0,2.094395),(0,1,0,4.18879),(0,1,0,0)]), ROUTE(fromField='fraction_changed',fromNode='Clock',toField='set_fraction',toNode='CenterFacingOrientationInterpolator'), ROUTE(fromField='value_changed',fromNode='CenterFacingOrientationInterpolator',toField='orientation',toNode='OrbitingView'), Comment('Additional Viewpoints'), Viewpoint(description='Front view',orientation=(0,1,0,1.57),position=(8,0,0)), Viewpoint(description='Back view',orientation=(0,1,0,-1.57),position=(-8,0,0)), Viewpoint(description='Left view',position=(0,0,8)), Viewpoint(description='Right view',orientation=(0,1,0,3.1416),position=(0,0,-8)), Viewpoint(description='Top view',orientation=(1,0,0,-1.57),position=(0,8,0)), Viewpoint(description='Bottom view',orientation=(1,0,0,1.57),position=(0,-8,0))]) ) ### X3D model conversion complete ### #################################################################################################### # Self-test diagnostics #################################################################################################### print('Self-test diagnostics for BoxSwitch.py:') if metaDiagnostics(newModel): # built-in utility method in X3D class print(metaDiagnostics(newModel)) # display meta info, hint, warning, error, TODO values in this model # print('check newModel.XML() serialization...') newModelXML= newModel.XML() # test export method XML() for exceptions during export newModel.XMLvalidate() # print(newModelXML) # diagnostic try: # print('check newModel.VRML() serialization...') newModelVRML=newModel.VRML() # test export method VRML() for exceptions during export # print(prependLineNumbers(newModelVRML)) # debug print("Python-to-VRML export of VRML output successful", flush=True) except Exception as err: # usually BaseException # https://stackoverflow.com/questions/18176602/how-to-get-the-name-of-an-exception-that-was-caught-in-python print("*** Python-to-VRML export of VRML output failed:", type(err).__name__, err) if newModelVRML: # may have failed to generate print(prependLineNumbers(newModelVRML, err.lineno)) try: # print('check newModel.JSON() serialization...') newModelJSON=newModel.JSON() # test export method JSON() for exceptions during export # print(prependLineNumbers(newModelJSON)) # debug print("Python-to-JSON export of JSON output successful (under development)") except Exception as err: # usually SyntaxError print("*** Python-to-JSON export of JSON output failed:", type(err).__name__, err) if newModelJSON: # may have failed to generate print(prependLineNumbers(newModelJSON,err.lineno)) print("python BoxSwitch.py load and self-test diagnostics complete.")