#################################################################################################### # # Invoking X3D model self-test: # # $ python IcosahedronSubdivisionLevel2.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='Interchange',version='3.1', head=head( children=[ meta(content='IcosahedronSubdivisionLevel2.x3d',name='title'), meta(content='IcosahedronSubdivisionLevel2.ply',name='reference'), meta(content='Icosahedron is a polyhedron with twenty faces, subdivided to level 2, where all 162 vertices and 320 faces produce regular (equilateral) triangles.',name='description'), meta(content='13 September 2014',name='created'), meta(content='20 October 2019',name='modified'), meta(content='Don Brutzman',name='creator'), meta(content='Icosahedron.x3d',name='reference'), meta(content='https://en.wikipedia.org/wiki/Icosahedron',name='reference'), meta(content='https://en.wiktionary.org/wiki/icosahedron',name='reference'), meta(content='https://en.wikipedia.org/wiki/Platonic_solid',name='reference'), meta(content='https://en.wikipedia.org/wiki/Geodesic_grid',name='reference'), meta(content='https://www.web3d.org/x3d/content/examples/X3dForAdvancedModeling/GeometricShapes/IcosahedronSubdivisionLevel2.x3d',name='identifier'), meta(content='Meshlab X3D Exported, http://meshlab.sourceforge.net',name='generator'), meta(content='X3D-Edit 3.3, https://www.web3d.org/x3d/tools/X3D-Edit',name='generator'), meta(content='../license.html',name='license')]), Scene=Scene( children=[ WorldInfo(title='IcosahedronSubdivisionLevel2.x3d'), Background(skyColor=[(0.5,1,0.9)]), Viewpoint(description='Icosahedron, subdivision level 2',position=(0,0,6)), Shape(DEF='IcosahedronSubdivisionLevel2', 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appearance=Appearance( material=Material(diffuseColor=(0.2,0.5,0.8))))]) ) ### X3D model conversion complete ### #################################################################################################### # Self-test diagnostics #################################################################################################### print('Self-test diagnostics for IcosahedronSubdivisionLevel2.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 IcosahedronSubdivisionLevel2.py load and self-test diagnostics complete.")