#################################################################################################### # # Invoking X3D model self-test: # # $ python TimeSensorEaseInEaseOutPrototype.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='3.2', head=head( children=[ meta(content='TimeSensorEaseInEaseOutPrototype.x3d',name='title'), meta(content='Time sensor ease-in ease-out design pattern, implemented as a reusable prototype node.',name='description'), meta(content='Don Brutzman and MV4204 class',name='creator'), meta(content='4 April 2006',name='created'), meta(content='28 November 2019',name='modified'), meta(content='TimeSensorEaseInEaseOutExample.x3d',name='reference'), meta(content='TimeDelaySensorPrototype.x3d',name='reference'), meta(content='TimeSensorEaseInEaseOut',name='subject'), meta(content='X3D v3.1 or greater',name='info'), meta(content='https://www.web3d.org/x3d/content/examples/Savage/Tools/Animation/TimeSensorEaseInEaseOutPrototype.x3d',name='identifier'), meta(content='X3D-Edit 3.2, https://www.web3d.org/x3d/tools/X3D-Edit',name='generator'), meta(content='../../license.html',name='license')]), Scene=Scene( children=[ WorldInfo(title='TimeSensorEaseInEaseOutPrototype.x3d'), ProtoDeclare(appinfo='TimeSensorEaseInEaseOut is a TimeSensor node with gradual start and stop rates',name='TimeSensorEaseInEaseOut', ProtoInterface=ProtoInterface( field=[ field(accessType='inputOutput',appinfo='whether sensor is active',name='enabled',type='SFBool',value=True), field(accessType='inputOutput',appinfo='repeat indefinitely when loop=true, repeat only once when loop=false',name='loop',type='SFBool',value=False), field(accessType='inputOutput',appinfo='loop duration in seconds',name='cycleInterval',type='SFTime',value=1), field(accessType='outputOnly',appinfo='fraction_changed sends values in range [0,1] showing time progress in the current cycle',name='fraction_changed',type='SFFloat'), field(accessType='outputOnly',appinfo='isActive true/false events are sent when TimeSensor starts/stops running',name='isActive',type='SFBool'), field(accessType='outputOnly',appinfo='isPaused true/false events are sent when TimeSensor is paused/resumed',name='isPaused',type='SFBool'), field(accessType='inputOutput',appinfo='when current time exceeds startTime, isActive becomes true and sensor becomes active',name='startTime',type='SFTime',value=0), field(accessType='inputOutput',appinfo='when current time exceeds stopTime, isActive becomes false and sensor becomes inactive',name='stopTime',type='SFTime',value=0), field(accessType='inputOutput',appinfo='when current time exceeds pauseTime, isPaused becomes false and sensor becomes paused',name='pauseTime',type='SFTime',value=0), field(accessType='inputOutput',appinfo='when current time exceeds resumeTime, isPaused becomes false and sensor resumes running',name='resumeTime',type='SFTime',value=0), field(accessType='outputOnly',appinfo='cycleTime sends a time event at startTime, and also at the beginning of each new cycle',name='cycleTime',type='SFTime'), field(accessType='outputOnly',appinfo='elapsed time since TimeSensor activated/running, cumulative in seconds, not counting any paused time',name='elapsedTime',type='SFTime'), field(accessType='outputOnly',appinfo='absolute time (since January 1, 1970) for each event loop',name='time',type='SFTime')]), ProtoBody=ProtoBody( children=[ Group( children=[ TimeSensor(DEF='TimeDelayClock', IS=IS( connect=[ connect(nodeField='enabled',protoField='enabled'), connect(nodeField='loop',protoField='loop'), connect(nodeField='cycleInterval',protoField='cycleInterval'), # fraction_changed is handled by ScalarInterpolator connect(nodeField='isActive',protoField='isActive'), connect(nodeField='isPaused',protoField='isPaused'), connect(nodeField='startTime',protoField='startTime'), connect(nodeField='stopTime',protoField='stopTime'), connect(nodeField='pauseTime',protoField='pauseTime'), connect(nodeField='resumeTime',protoField='resumeTime'), connect(nodeField='cycleTime',protoField='cycleTime'), connect(nodeField='elapsedTime',protoField='elapsedTime'), connect(nodeField='time',protoField='time')])), ScalarInterpolator(DEF='PiecewiseLinearDelayFilter',key=[0,0.1,0.9,1],keyValue=[0,0.03,0.97,1], IS=IS( connect=[ connect(nodeField='value_changed',protoField='fraction_changed')])), ROUTE(fromField='fraction_changed',fromNode='TimeDelayClock',toField='set_fraction',toNode='PiecewiseLinearDelayFilter')])])), Comment(' ====================================== '), Comment(' Example use '), Anchor(description='TimeSensorEaseInEaseOut Example',url=["TimeSensorEaseInEaseOutExample.x3d","https://www.web3d.org/x3d/content/examples/Savage/Tools/Animation/TimeSensorEaseInEaseOutExample.x3d","TimeSensorEaseInEaseOutExample.wrl","https://www.web3d.org/x3d/content/examples/Savage/Tools/Animation/TimeSensorEaseInEaseOutExample.wrl"], children=[ Shape( geometry=Text(string=["TimeSensorEaseInEaseOutPrototype","defines a prototype","","Click text to see","TimeSensorEaseInEaseOutExample scene"], fontStyle=FontStyle(justify=["MIDDLE","MIDDLE"],size=0.7)), appearance=Appearance( material=Material(diffuseColor=(1,1,0.2))))])]) ) ### X3D model conversion complete ### #################################################################################################### # Self-test diagnostics #################################################################################################### print('Self-test diagnostics for TimeSensorEaseInEaseOutPrototype.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 TimeSensorEaseInEaseOutPrototype.py load and self-test diagnostics complete.")