#################################################################################################### # # Invoking X3D model self-test: # # $ python KelpPrototype.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='KelpPrototype.x3d',name='title'), meta(content='Creates Kelp Prototype - this file uses Bulb and is used by KelpExamplesNoBase.',name='description'), meta(content='Joseph Cannon, Dan DeVos',name='creator'), meta(content='18 March 1999',name='created'), meta(content='20 October 2019',name='modified'), meta(content='http://faculty.nps.edu/brutzman/kelp',name='reference'), meta(content='KelpForestDesignPaperWeb3dSymposiumFebruary2002.pdf',name='reference'), meta(content='https://www.web3d.org/x3d/content/examples/X3dForWebAuthors/KelpForestExhibit/KelpForestDesignPaperWeb3dSymposiumFebruary2002.pdf',name='reference'), meta(content='https://www.web3d.org/x3d/content/examples/X3dForWebAuthors/KelpForestExhibit/Teaching3d-KelpForestCaseStudy.pdf',name='reference'), meta(content='All content has permissions for free use. Please provide credit to the Naval Postgraduate School (NPS) Modeling Virtual Environments and Simulation (MOVES) Institute.',name='accessRights'), meta(content='https://www.web3d.org/x3d/content/examples/X3dForWebAuthors/KelpForestExhibit/KelpPrototype.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='KelpPrototype.x3d'), ProtoDeclare(appinfo='Kelp strands and bulbs with no base',name='Kelp', ProtoInterface=ProtoInterface( field=[ field(accessType='inputOutput',name='frontBladeSize',type='SFVec3f',value=(0.7,0.7,0.7)), field(accessType='inputOutput',name='frontSideBladeHeight',type='SFVec3f',value=(0,4,0)), field(accessType='inputOutput',name='rightBladeSize',type='SFVec3f',value=(0.7,0.7,0.7)), field(accessType='inputOutput',name='rightSideBladeHeight',type='SFVec3f',value=(0,12,0)), field(accessType='inputOutput',name='rearBladeSize',type='SFVec3f',value=(0.4,0.4,0.4)), field(accessType='inputOutput',name='rearSideBladeHeight',type='SFVec3f',value=(0,20,0)), field(accessType='inputOutput',name='leftBladeSize',type='SFVec3f',value=(0.4,0.4,0.4)), field(accessType='inputOutput',name='leftSideBladeHeight',type='SFVec3f',value=(0,24,0))]), ProtoBody=ProtoBody( children=[ Group( children=[ Transform(DEF='stipe',center=(0,-16,0),translation=(0,14,0), children=[ Shape(DEF='stemShape', appearance=Appearance(DEF='kelpColor', material=Material(diffuseColor=(0.882,0.757,0.184))), geometry=Cylinder(bottom=False,height=28.0,radius=0.2,top=False)), Transform(DEF='horizontalStipe',center=(0,16,0),rotation=(0,0,1,1.5707),scale=(0.5,0.3,0.5),translation=(1.3,0,0), children=[ Transform( children=[ Shape(USE='stemShape')]), Transform(DEF='blade_X1',rotation=(0,1,0,1.0),translation=(0,12,0), children=[ Transform(DEF='bladeRotateZ',rotation=(0,0,1,-1.2), children=[ Transform(DEF='BLADE',center=(-0.5,0,0),translation=(1,0,0), children=[ Inline(DEF='bulb',url=["KelpBulb.x3d","https://www.web3d.org/x3d/content/examples/X3dForWebAuthors/KelpForestExhibit/KelpBulb.x3d","KelpBulb.wrl","https://www.web3d.org/x3d/content/examples/X3dForWebAuthors/KelpForestExhibit/KelpBulb.wrl"])])])]), Transform(DEF='blade_X2',rotation=(0,1,0,-1.0), children=[ Transform(USE='bladeRotateZ')]), Transform(DEF='blade_X3',rotation=(0,1,0,4.342),translation=(0,-12,0), children=[ Transform(USE='bladeRotateZ')])]), Transform(translation=(0,14,0), children=[ Shape( appearance=Appearance(USE='kelpColor'), geometry=Extrusion(creaseAngle=1.57,crossSection=[(0.2,0),(0.184,-0.076),(0.142,-0.142),(0.076,-0.184),(0,-0.2),(-0.076,-0.184),(-0.142,-0.142),(-0.184,-0.076),(-0.2,-0),(-0.184,0.076),(-0.142,0.142),(-0.076,0.184),(0,0.2),(0.076,0.184),(0.142,0.142),(0.184,0.076),(0.2,0)],scale=[(1,1),(0.8,0.8),(0.7,0.7),(0.6,0.6),(0.5,0.5)],spine=[(0,0,0),(0.15,0.77,0),(0.59,1.41,0),(1.23,1.85,0),(2,2,0)]))])]), Transform(DEF='blade_Y1',rotation=(0,0,1,1.2), IS=IS( connect=[ connect(nodeField='scale',protoField='frontBladeSize'), connect(nodeField='translation',protoField='frontSideBladeHeight')]), children=[ Transform(USE='BLADE')]), Transform(DEF='blade_Y2',rotation=(0,1,0,4.2), IS=IS( connect=[ connect(nodeField='scale',protoField='rightBladeSize'), connect(nodeField='translation',protoField='rightSideBladeHeight')]), children=[ Transform(DEF='bladeToTheSide',rotation=(1,0,0,3.142), children=[ Transform(rotation=(0,0,1,-1.2), children=[ Transform(DEF='rotateBlade90',center=(-0.5,0,0),rotation=(1,0,0,1.5707),translation=(1,0,0), children=[ Inline(USE='bulb')])])])]), Transform(DEF='blade_Y3',rotation=(0,1,0,3.2), IS=IS( connect=[ connect(nodeField='scale',protoField='rearBladeSize'), connect(nodeField='translation',protoField='rearSideBladeHeight')]), children=[ Transform(DEF='Blade-Z',rotation=(1,0,0,3.142), children=[ Transform(rotation=(0,0,1,-1.2), children=[ Transform(USE='BLADE')])])]), Transform(DEF='blade_Y4',rotation=(0,1,0,1.2), IS=IS( connect=[ connect(nodeField='scale',protoField='leftBladeSize'), connect(nodeField='translation',protoField='leftSideBladeHeight')]), children=[ Transform(USE='bladeToTheSide')]), TimeSensor(DEF='Clock',cycleInterval=5.5,loop=True), OrientationInterpolator(DEF='horizontalStipeMover',key=[0,0.25,0.5,0.75,1.0],keyValue=[(0,0,1,1.471),(0,0,1,1.571),(0,0,1,1.671),(0,0,1,1.571),(0,0,1,1.471)])]), ROUTE(fromField='fraction_changed',fromNode='Clock',toField='set_fraction',toNode='horizontalStipeMover'), ROUTE(fromField='value_changed',fromNode='horizontalStipeMover',toField='set_rotation',toNode='horizontalStipe')])), Comment('Example use of this prototype is in KelpNoBase.x3d, .wrl'), Viewpoint(description='click message to view example',position=(0,0,8)), Comment('Redirection text in case a user examines this PROTO file via a 3D browser:'), Anchor(DEF='TouchTextForExample',description='KelpNoBase',parameter=["target=_blank"],url=["KelpExamplesNoBase.x3d","https://www.web3d.org/x3d/content/examples/X3dForWebAuthors/KelpForestExhibit/KelpExamplesNoBase.x3d","KelpExamplesNoBase.wrl","https://www.web3d.org/x3d/content/examples/X3dForWebAuthors/KelpForestExhibit/KelpExamplesNoBase.wrl"], children=[ Shape( appearance=Appearance( material=Material(diffuseColor=(0,1,1),emissiveColor=(0,1,1))), geometry=Text(string=["KelpPrototype","is a Prototype declaration file.","","To see an example using 3 instances of","this new node, click this text and view","KelpNoBase scene"], fontStyle=FontStyle(justify=["MIDDLE","MIDDLE"],size=0.5))), Comment('Selectable Text design pattern has transparent Box and TouchSensor description as a tooltip'), Shape( geometry=Box(size=(8,3,.001)), appearance=Appearance( material=Material(transparency=1)))])]) ) ### X3D model conversion complete ### #################################################################################################### # Self-test diagnostics #################################################################################################### print('Self-test diagnostics for KelpPrototype.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 KelpPrototype.py load and self-test diagnostics complete.")