#################################################################################################### # # Invoking X3D model self-test: # # $ python OlympicRings.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='OlympicRings.x3d',name='title'), meta(content='Olympic Rings built for authoring course MV3204 using regulation colors, each approximately 5m radius. Debugging efforts showed difficulties with concave crossSection, important to set convex=false for proper rendering.',name='description'), meta(content='Tobias Brennenstuhl',name='creator'), meta(content='10 December 2019',name='created'), meta(content='14 July 2025',name='modified'), meta(content='CircleCalculator.xlsx',name='reference'), meta(content='https://en.wikipedia.org/wiki/Olympic_symbols',name='reference'), meta(content='https://en.wikipedia.org/wiki/Olympic_symbols#/media/File:Olympic_rings_without_rims.svg',name='drawing'), meta(content='https://www.olympics.com/ioc/olympic-rings',name='reference'), meta(content='OlympicRings.FreeWRL.png',name='Image'), meta(content='OlympicRings.H3dViewer.png',name='Image'), meta(content='OlympicRings.InstantReality.png',name='Image'), meta(content='OlympicRings.Octaga.png',name='Image'), meta(content='OlympicRings.view3dScene.png',name='Image'), meta(content='OlympicRings.XJ3dBrowser.png',name='Image'), meta(content='OlympicRingsBlender.blend',name='reference'), meta(content='OlympicRingsBlender.png',name='reference'), meta(content='OlympicRingsBlender.original.txt',name='reference'), meta(content='OlympicRingsBlender.x3d',name='reference'), meta(content='ExtrusionCrossSectionSelfIntersectingView3dsceneVisualization.mp4',name='reference'), meta(content='https://twitter.com/Web3DConsortium/status/1245370306417418240',name='reference'), meta(content='Olympic Rings',name='subject'), meta(content='X3D-Edit 3.3, https://www.web3d.org/x3d/tools/X3D-Edit',name='generator'), meta(content='https://gitlab.nps.edu/Savage/mv3204x3dforwebauthors/blob/master/assignments/DirectedStudy/Tobias/Scenes/OlympicRings.x3d',name='reference'), meta(content='https://www.web3d.org/x3d/content/examples/X3dForAdvancedModeling/GeometricShapes/OlympicRings.x3d',name='identifier'), meta(content='../license.html',name='license')]), Scene=Scene( children=[ WorldInfo(title='OlympicRings.x3d'), NavigationInfo(headlight=False), PointLight(DEF='PointLight',location=(0,0,45)), Viewpoint(DEF='OlympicRingsFromInFront',description='Regulation color Olympic Rings',position=(0,0,45)), Background(skyColor=[(0.2,0.2,0.2)]), Transform(DEF='AllRings',translation=(0,2,0), children=[ Transform(rotation=(1,0,0,1.6),translation=(-11,2.5,0.1), children=[ Shape( geometry=Extrusion(DEF='RingExtrusion',convex=False,crossSection=[(4.924039,0.868241),(4.698463,1.710101),(4.330127,2.5),(3.830222,3.213938),(3.213938,3.830222),(2.5,4.330127),(1.710101,4.698463),(0.868241,4.924039),(0,5),(-0.868241,4.924039),(-1.710101,4.698463),(-2.5,4.330127),(-3.213938,3.830222),(-3.830222,3.213938),(-4.330127,2.5),(-4.698463,1.710101),(-4.924039,0.868241),(-5,0),(-4.924039,-0.868241),(-4.698463,-1.710101),(-4.330127,-2.5),(-3.830222,-3.213938),(-3.213938,-3.830222),(-2.5,-4.330127),(-1.710101,-4.698463),(-0.868241,-4.924039),(-0,-5),(0.868241,-4.924039),(1.710101,-4.698463),(2.5,-4.330127),(3.213938,-3.830222),(3.830222,-3.213938),(4.330127,-2.5),(4.698463,-1.710101),(4.924039,-0.868241),(5,-0),(4.5,0),(4.431635,-0.781417),(4.228617,-1.539091),(3.897114,-2.25),(3.4472,-2.892544),(2.892544,-3.4472),(2.25,-3.897114),(1.539091,-4.228617),(0.781417,-4.431635),(-0,-4.5),(-0.781417,-4.431635),(-1.539091,-4.228617),(-2.25,-3.897114),(-2.892544,-3.4472),(-3.4472,-2.892544),(-3.897114,-2.25),(-4.228617,-1.539091),(-4.431635,-0.781417),(-4.5,0),(-4.431635,0.781417),(-4.228617,1.539091),(-3.897114,2.25),(-3.4472,2.892544),(-2.892544,3.4472),(-2.25,3.897114),(-1.539091,4.228617),(-0.781417,4.431635),(0,4.5),(0.781417,4.431635),(1.539091,4.228617),(2.25,3.897114),(2.892544,3.4472),(3.4472,2.892544),(3.897114,2.25),(4.228617,1.539091),(4.431635,0.781417),(4.5,0),(5,0),(4.924039,0.868241)],solid=False, # spine is open, crossSection is closed ), appearance=Appearance( material=Material(DEF='StrongBlue',diffuseColor=(0.003922,0.52549,0.768627))))]), Transform(rotation=(1,0,0,1.54),translation=(0,2.5,-0.1), children=[ Shape( geometry=Extrusion(USE='RingExtrusion'), appearance=Appearance( material=Material(DEF='SolidBlack',diffuseColor=(0,0,0))))]), Transform(rotation=(1,0,0,1.50),translation=(11,2.5,-0.21), children=[ Shape( geometry=Extrusion(USE='RingExtrusion'), appearance=Appearance( material=Material(DEF='StrongRed',diffuseColor=(0.933333333,0.188235294,0.298039216))))]), Transform(rotation=(1,0,0,1.57),translation=(-5.5,-3,0), children=[ Shape( geometry=Extrusion(USE='RingExtrusion'), appearance=Appearance( material=Material(DEF='MustardYellow',diffuseColor=(0.984313725,0.701960784,0.184313725))))]), Transform(rotation=(1,0,0,1.52),translation=(5.5,-3,0.1), children=[ Shape( geometry=Extrusion(USE='RingExtrusion'), appearance=Appearance( material=Material(DEF='OlympicGreen',diffuseColor=(0.082352941,0.549019608,0.223529412))))])])]) ) ### X3D model conversion complete ### #################################################################################################### # Self-test diagnostics #################################################################################################### print('Self-test diagnostics for OlympicRings.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 OlympicRings.py load and self-test diagnostics complete.")