#################################################################################################### # # Invoking X3D model self-test: # # $ python AirSpeed.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. # #################################################################################################### from x3d import * newModel=X3D(profile='Interchange',version='3.0', head=head( children=[ meta(content='AirSpeed.x3d',name='title'), meta(content='This file defines an air speed screen that is inlined to create the cockpit console of a helicopter',name='description'), meta(content='Jane Wu (adapted from the original airspeed.wrl created for vrtp demo helicopter)',name='creator'), meta(content='9 January 2001',name='created'), meta(content='20 October 2019',name='modified'), meta(content='https://savage.nps.edu/Savage/AircraftHelicopters/HelicopterUnitedStates/AirSpeed.x3d',name='identifier'), meta(content='X3D-Edit 3.2, https://savage.nps.edu/X3D-Edit',name='generator'), meta(content='../../license.html',name='license')]), Scene=Scene( children=[ WorldInfo(title='AirSpeed.x3d'), Group( children=[ Shape( appearance=Appearance(DEF='GREEN', material=Material(diffuseColor=(0.0,1.0,0.0))), geometry=Box(size=(0.06,0.06,0.03))), Transform(rotation=(1.0,0.0,0.0,1.57),translation=(0.0,0.0,0.015), children=[ Shape( appearance=Appearance(DEF='BLACK', material=Material(diffuseColor=(0.0,0.0,0.0))), geometry=Cylinder(bottom=False,height=0.008,radius=0.025))]), Transform(translation=(0.0,0.01,0.018), children=[ Shape( appearance=Appearance(DEF='WHITE', material=Material(diffuseColor=(1.0,1.0,1.0))), geometry=Box(size=(0.002,0.018,0.003)))])])]) ) # X3D model complete #################################################################################################### # Self-test diagnostics #################################################################################################### print('Self-test diagnostics for AirSpeed.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 AirSpeed.py load and self-test diagnostics complete.")