#################################################################################################### # # Invoking X3D model self-test: # # $ python SliderExample.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='Immersive',version='3.0', head=head( children=[ meta(content='SliderExample.x3d',name='title'), meta(content='Mike Hunsberger',name='creator'), meta(content='12 February 2001',name='created'), meta(content='28 November 2019',name='modified'), meta(content='This example uses an external proto SliderProto to generate a slider that produces integer values.',name='description'), meta(content='needs troubleshooting.',name='warning'), meta(content='https://savage.nps.edu/Savage/Tools/ExerciseClock/SliderExample.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='SliderExample.x3d'), ExternProtoDeclare(name='Slider',url=["SliderPrototype.x3d#Slider","https://savage.nps.edu/Savage/Tools/ExerciseClock/SliderPrototype.x3d#Slider","SliderPrototype.wrl#Slider","https://savage.nps.edu/Savage/Tools/ExerciseClock/SliderPrototype.wrl#Slider"], field=[ field(accessType='initializeOnly',name='height',type='SFFloat'), field(accessType='initializeOnly',name='radius',type='SFFloat'), field(accessType='initializeOnly',name='min',type='SFInt32'), field(accessType='initializeOnly',name='max',type='SFInt32'), field(accessType='initializeOnly',name='value',type='SFInt32'), field(accessType='inputOnly',name='set_min',type='SFInt32'), field(accessType='inputOnly',name='set_max',type='SFInt32'), field(accessType='outputOnly',name='set_value',type='SFInt32'), field(accessType='outputOnly',name='value_changed',type='SFInt32')]), ExternProtoDeclare(name='ScaledSFFloat',url=["SliderPrototype.x3d#ScaledSFFloat","https://savage.nps.edu/Savage/Tools/ExerciseClock/SliderPrototype.x3d#ScaledSFFloat","SliderPrototype.wrl#ScaledSFFloat","https://savage.nps.edu/Savage/Tools/ExerciseClock/SliderPrototype.wrl#ScaledSFFloat"], field=[ field(accessType='initializeOnly',name='oldMin',type='SFFloat'), field(accessType='initializeOnly',name='oldMax',type='SFFloat'), field(accessType='initializeOnly',name='newMin',type='SFFloat'), field(accessType='initializeOnly',name='newMax',type='SFFloat'), field(accessType='inputOnly',name='set_oldMin',type='SFFloat'), field(accessType='inputOnly',name='set_oldMax',type='SFFloat'), field(accessType='inputOnly',name='set_newMin',type='SFFloat'), field(accessType='inputOnly',name='set_newMax',type='SFFloat'), field(accessType='inputOnly',name='set_value',type='SFFloat'), field(accessType='outputOnly',name='value_changed',type='SFFloat')]), ExternProtoDeclare(name='SingleTypeConversion',url=["SliderPrototype.x3d#SingleTypeConversion","https://savage.nps.edu/Savage/Tools/ExerciseClock/SliderPrototype.x3d#SingleTypeConversion","SliderPrototype.wrl#SingleTypeConversion","https://savage.nps.edu/Savage/Tools/ExerciseClock/SliderPrototype.wrl#SingleTypeConversion"], field=[ field(accessType='inputOnly',name='SFBoolValue',type='SFBool'), field(accessType='inputOnly',name='SFFloatValue',type='SFFloat'), field(accessType='inputOnly',name='SFInt32Value',type='SFInt32'), field(accessType='inputOnly',name='SFStringValue',type='SFString'), field(accessType='outputOnly',name='SFBoolResult',type='SFBool'), field(accessType='outputOnly',name='SFFloatResult',type='SFFloat'), field(accessType='outputOnly',name='SFInt32Result',type='SFInt32'), field(accessType='outputOnly',name='SFStringResult',type='SFString'), field(accessType='outputOnly',name='MFStringResult',type='MFString')]), Viewpoint(description='Slider Example'), Transform(rotation=(0,0,1,-1.57079), children=[ ProtoInstance(DEF='Slider',name='Slider', fieldValue=[ fieldValue(name='min',value=0), fieldValue(name='max',value=24), fieldValue(name='height',value=5), fieldValue(name='radius',value=0.1), fieldValue(name='value',value=12)])]), Transform(translation=(4,2,0), children=[ Shape( geometry=Text(DEF='VALUE_TEXT',string=["Value"]))]), ProtoInstance(DEF='Converter',name='SingleTypeConversion'), ProtoInstance(DEF='Scaler',name='ScaledSFFloat', fieldValue=[ fieldValue(name='oldMin',value=0), fieldValue(name='oldMax',value=24), fieldValue(name='newMin',value=0), fieldValue(name='newMax',value=1)]), ROUTE(fromField='value_changed',fromNode='Slider',toField='SFInt32Value',toNode='Converter'), ROUTE(fromField='SFFloatResult',fromNode='Converter',toField='set_value',toNode='Scaler'), ROUTE(fromField='MFStringResult',fromNode='Converter',toField='set_string',toNode='VALUE_TEXT')]) ) # X3D model complete #################################################################################################### # Self-test diagnostics #################################################################################################### print('Self-test diagnostics for SliderExample.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 SliderExample.py load and self-test diagnostics complete.")