#################################################################################################### # # Invoking X3D model self-test: # # $ python CapsuleGenerator.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='CapsuleGenerator.x3d',name='title'), meta(content='Capsule has top and bottom hemispheres with connected sides, with adjustable parameters in the contained Script fields. A Script node computes all coordIndex and Coordinate point values. X3D source for the produced capsule also appears on the player console.',name='description'), meta(content='13 October 2014',name='created'), meta(content='20 October 2019',name='modified'), meta(content='Don Brutzman',name='creator'), meta(content='CapsuleGenerator.log.txt',name='reference'), meta(content='CapsuleComparison.x3d',name='reference'), meta(content='InstantReality and BSContact work',name='info'), meta(content='H3DViewer: missing Script appinfo and new SFInt32 when running CapsuleGenerator.js; got bugtracker?',name='TODO'), meta(content='https://en.wikipedia.org/wiki/Capsule_(geometry)',name='reference'), meta(content='https://en.wiktionary.org/wiki/capsule',name='reference'), meta(content='This tessellation is not geodesic because the polygons are computed using rectangular quadrilaterals and vertical levels rather than triangulated shortest paths.',name='info'), meta(content='https://en.wiktionary.org/wiki/geodesic',name='reference'), meta(content='https://en.wiktionary.org/wiki/geodesic_dome',name='reference'), meta(content='https://en.wikipedia.org/wiki/Geodesic',name='reference'), meta(content='https://en.wikipedia.org/wiki/Geodesic_grid',name='reference'), meta(content='https://sourceforge.net/p/x3d/code/HEAD/tree/www.web3d.org/x3d/tools/X3dEdit3.3/X3D/src/org/web3d/x3d/NsidedPolygon.java',name='reference'), meta(content='https://savage.nps.edu/Savage/CommunicationsAndSensors/HalfDome/HemisphereExample.x3d',name='reference'), meta(content='https://savage.nps.edu/Savage/CommunicationsAndSensors/HalfDome/HemispherePrototype.x3d',name='reference'), meta(content='https://www.web3d.org/x3d/content/examples/X3dForAdvancedModeling/GeometricShapes/CapsuleGenerator.x3d',name='identifier'), 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='CapsuleGenerator.x3d'), Background(skyColor=[(0.5,1,0.9)]), Viewpoint(description='Capsule Generator',position=(0,0,4)), Shape(DEF='Capsule', # Polygonal Capsule consisting of 2 Hemispheres with connected sides geometry=IndexedFaceSet(DEF='COMPUTED_IFS',creaseAngle=0.785398, coord=Coordinate(DEF='COMPUTED_COORDINATE')), appearance=Appearance( material=Material(emissiveColor=(0.2,0.5,0)))), Script(DEF='CapsuleGeneratorScript',url=["CapsuleGenerator.js","https://www.web3d.org/x3d/content/examples/X3dForAdvancedModeling/GeometricShapes/CapsuleGenerator.js"], field=[ field(accessType='initializeOnly',appinfo='total height, includes top and bottom hemispheres',name='height',type='SFFloat',value=2.0), field(accessType='initializeOnly',appinfo='for cylinder and hemispherical end caps',name='radius',type='SFFloat',value=0.5), field(accessType='initializeOnly',appinfo='horizontal resolution for cylinder and hemispherical end caps',name='numberOfPoints',type='SFInt32',value=36), field(accessType='initializeOnly',appinfo='vertical resolution for cylinder and hemispherical end caps',name='numberOfLevels',type='SFInt32',value=10), field(accessType='initializeOnly',appinfo='radial scale factor',name='horizontalScale',type='SFFloat',value=1.0), field(accessType='initializeOnly',appinfo='vertical scale factor',name='verticalScale',type='SFFloat',value=1.0), field(accessType='initializeOnly',appinfo='whether to draw top hemisphere',name='top',type='SFBool',value=True), field(accessType='initializeOnly',appinfo='whether to draw side cylinder',name='side',type='SFBool',value=True), field(accessType='initializeOnly',appinfo='whether to draw bottom hemisphere',name='bottom',type='SFBool',value=True), field(accessType='outputOnly',appinfo='points for Coordinate node',name='pointsComputed',type='MFVec3f'), field(accessType='outputOnly',appinfo='index values for IFS',name='indicesComputed',type='MFInt32'), field(accessType='initializeOnly',appinfo='whether to trace output values on X3D browser console',name='traceEnabled',type='SFBool',value=False), field(accessType='initializeOnly',appinfo='determines console output node type: polygons=IndexedFaceSet, lines=IndexedLineSet, points=PointSet',name='geometryType',type='SFString',value='polygons')], sourceCode=""" ecmascript: """), ROUTE(fromField='indicesComputed',fromNode='CapsuleGeneratorScript',toField='set_coordIndex',toNode='COMPUTED_IFS'), ROUTE(fromField='pointsComputed',fromNode='CapsuleGeneratorScript',toField='set_point',toNode='COMPUTED_COORDINATE')]) ) ### X3D model conversion complete ### #################################################################################################### # Self-test diagnostics #################################################################################################### print('Self-test diagnostics for CapsuleGenerator.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 CapsuleGenerator.py load and self-test diagnostics complete.")