#################################################################################################### # # Invoking X3D model self-test: # # $ python gridBack.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='3.0', head=head( children=[ meta(content='gridBack.x3d',name='title'), meta(content='Checkerboard grid background for X3D/VRML materials selection.',name='description'), meta(content='David Roussel',name='creator'), meta(content='James Harney, Don Brutzman NPS',name='translator'), meta(content='8 April 2002',name='created'), meta(content='20 October 2019',name='modified'), meta(content='http://vrmlstuff.free.fr/materials',name='reference'), meta(content='Universal Media Material Library',name='subject'), meta(content='https://www.web3d.org/x3d/content/examples/Basic/UniversalMediaMaterials/gridBack.x3d',name='identifier'), meta(content='Vrml97ToX3dNist, http://ovrt.nist.gov/v2_x3d.html',name='generator'), meta(content='../license.html',name='license')]), Scene=Scene( children=[ WorldInfo(title='gridBack.x3d'), Shape( appearance=Appearance( material=Material(ambientIntensity=0.01,diffuseColor=(1.0,1.0,1.0),shininess=0.05)), geometry=IndexedFaceSet(colorIndex=[0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0],colorPerVertex=False,coordIndex=[0,8,9,1,-1,1,9,10,2,-1,2,10,11,3,-1,3,11,12,4,-1,4,12,13,5,-1,5,13,14,6,-1,6,14,15,7,-1,8,16,17,9,-1,9,17,18,10,-1,10,18,19,11,-1,11,19,20,12,-1,12,20,21,13,-1,13,21,22,14,-1,14,22,23,15,-1,16,24,25,17,-1,17,25,26,18,-1,18,26,27,19,-1,19,27,28,20,-1,20,28,29,21,-1,21,29,30,22,-1,22,30,31,23,-1,24,32,33,25,-1,25,33,34,26,-1,26,34,35,27,-1,27,35,36,28,-1,28,36,37,29,-1,29,37,38,30,-1,30,38,39,31,-1,32,40,41,33,-1,33,41,42,34,-1,34,42,43,35,-1,35,43,44,36,-1,36,44,45,37,-1,37,45,46,38,-1,38,46,47,39,-1,40,48,49,41,-1,41,49,50,42,-1,42,50,51,43,-1,43,51,52,44,-1,44,52,53,45,-1,45,53,54,46,-1,46,54,55,47,-1,48,56,57,49,-1,49,57,58,50,-1,50,58,59,51,-1,51,59,60,52,-1,52,60,61,53,-1,53,61,62,54,-1,54,62,63,55,-1],normalPerVertex=False, coord=Coordinate(point=[(-5.25,5.25,0.0),(-3.75,5.25,0.0),(-2.25,5.25,0.0),(-0.75,5.25,0.0),(0.75,5.25,0.0),(2.25,5.25,0.0),(3.75,5.25,0.0),(5.25,5.25,0.0),(-5.25,3.75,0.0),(-3.75,3.75,0.0),(-2.25,3.75,0.0),(-0.75,3.75,0.0),(0.75,3.75,0.0),(2.25,3.75,0.0),(3.75,3.75,0.0),(5.25,3.75,0.0),(-5.25,2.25,0.0),(-3.75,2.25,0.0),(-2.25,2.25,0.0),(-0.75,2.25,0.0),(0.75,2.25,0.0),(2.25,2.25,0.0),(3.75,2.25,0.0),(5.25,2.25,0.0),(-5.25,0.75,0.0),(-3.75,0.75,0.0),(-2.25,0.75,0.0),(-0.75,0.75,0.0),(0.75,0.75,0.0),(2.25,0.75,0.0),(3.75,0.75,0.0),(5.25,0.75,0.0),(-5.25,-0.75,0.0),(-3.75,-0.75,0.0),(-2.25,-0.75,0.0),(-0.75,-0.75,0.0),(0.75,-0.75,0.0),(2.25,-0.75,0.0),(3.75,-0.75,0.0),(5.25,-0.75,0.0),(-5.25,-2.25,0.0),(-3.75,-2.25,0.0),(-2.25,-2.25,0.0),(-0.75,-2.25,0.0),(0.75,-2.25,0.0),(2.25,-2.25,0.0),(3.75,-2.25,0.0),(5.25,-2.25,0.0),(-5.25,-3.75,0.0),(-3.75,-3.75,0.0),(-2.25,-3.75,0.0),(-0.75,-3.75,0.0),(0.75,-3.75,0.0),(2.25,-3.75,0.0),(3.75,-3.75,0.0),(5.25,-3.75,0.0),(-5.25,-5.25,0.0),(-3.75,-5.25,0.0),(-2.25,-5.25,0.0),(-0.75,-5.25,0.0),(0.75,-5.25,0.0),(2.25,-5.25,0.0),(3.75,-5.25,0.0),(5.25,-5.25,0.0)]), color=Color(color=[(0.5,0.5,0.5),(0.75,0.75,0.75)])))]) ) ### X3D model conversion complete ### #################################################################################################### # Self-test diagnostics #################################################################################################### print('Self-test diagnostics for gridBack.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 gridBack.py load and self-test diagnostics complete.")