#################################################################################################### # # Invoking X3D model self-test: # # $ python MultipleTimerExplodingBuildingPrototype.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='MultipleTimerExplodingBuildingPrototype.x3d',name='title'), meta(content='A simple exploding structure, experimenting with the "Hello World" of explosions - click on the silver chimney to trigger the explosion.',name='description'), meta(content='Don Brutzman',name='creator'), meta(content='1 January 2001',name='created'), meta(content='28 November 2019',name='modified'), meta(content='MultipleTimerExplodingBuildingExampleIntermediateAnimation.png',name='Image'), meta(content='MultipleTimerExplodingBuildingVideo.mov',name='MovingImage'), meta(content='Exploding building schematic layout diagram:',name='reference'), meta(content='ExplodingBuildingLayout.pdf',name='reference'), meta(content='ExplodingBuildingLargeExample.wrl',name='reference'), meta(content='Rotation calculations performed using the Dizzy utility from Vapour Technologies by James Smith.',name='reference'), meta(content='http://www.vapourtech.com',name='reference'), meta(content='DIS-Java-VRML Working Group',name='reference'), meta(content='https://www.web3d.org/WorkingGroups/vrtp/dis-java-vrml',name='reference'), meta(content='https://savage.nps.edu/Savage/Tools/Explosions/MultipleTimerExplodingBuildingPrototype.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='MultipleTimerExplodingBuildingPrototype.x3d'), ProtoDeclare(appinfo='Prototype to explode different pieces and parts in different ways.',name='Exploder', ProtoInterface=ProtoInterface( field=[ field(accessType='initializeOnly',appinfo='geometry node, to be used inside a Shape',name='geometry',type='SFNode', # initialization node (if any) goes here ), field(accessType='initializeOnly',appinfo='Material node for this geometry, to be used inside a Shape',name='material',type='SFNode', # initialization node (if any) goes here ), field(accessType='initializeOnly',appinfo='starting point',name='initialPosition',type='SFVec3f',value=(0,0,0)), field(accessType='initializeOnly',appinfo='finish point',name='finalPosition',type='SFVec3f',value=(0,0,0)), field(accessType='initializeOnly',appinfo='starting point orientation',name='initialOrientation',type='SFRotation',value=(0,1,0,0)), field(accessType='initializeOnly',appinfo='finish point orientation',name='finalOrientation',type='SFRotation',value=(0,1,0,0)), field(accessType='inputOnly',appinfo='animation input',name='set_fraction',type='SFFloat'), field(accessType='inputOutput',appinfo='animation trigger',name='startTime',type='SFTime',value=0)]), ProtoBody=ProtoBody( children=[ Transform(DEF='LocationTransform', IS=IS( connect=[ connect(nodeField='translation',protoField='initialPosition')]), children=[ Transform(DEF='RotationTransform', IS=IS( connect=[ connect(nodeField='rotation',protoField='initialOrientation')]), children=[ Shape(DEF='AnimatedShape', IS=IS( connect=[ connect(nodeField='geometry',protoField='geometry')]), appearance=Appearance(DEF='AnimatedShapeAppearance', IS=IS( connect=[ connect(nodeField='material',protoField='material')])))])]), Script(DEF='ProtoAnimationScript', field=[ field(accessType='initializeOnly',name='initialPosition',type='SFVec3f'), field(accessType='initializeOnly',name='finalPosition',type='SFVec3f'), field(accessType='initializeOnly',name='initialOrientation',type='SFRotation'), field(accessType='initializeOnly',name='finalOrientation',type='SFRotation'), field(accessType='outputOnly',name='runTime',type='SFTime'), field(accessType='outputOnly',name='position_changeds',type='MFVec3f'), field(accessType='outputOnly',name='rotationValues',type='MFRotation')], # IS=IS( connect=[ connect(nodeField='initialPosition',protoField='initialPosition'), connect(nodeField='finalPosition',protoField='finalPosition'), connect(nodeField='initialOrientation',protoField='initialOrientation'), connect(nodeField='finalOrientation',protoField='finalOrientation')]), sourceCode=""" ecmascript: function initialize () { dx = finalPosition.x - initialPosition.x; dy = finalPosition.y - initialPosition.y; dz = finalPosition.z - initialPosition.z; // Browser.println ('dx=' + dx + ', dy=' + dy + ', dz=' + dz); distance = Math.sqrt (dx*dx + dy*dy + dz*dz); runTime = distance/20; // Browser.println ('runTime = ' + runTime); // Browser.println ('distance =' + distance); quarterPoint = initialPosition.add (new SFVec3f ( dx/4, dy/4 + 0.707*distance, dz/4)); halfwaypoint = initialPosition.add (new SFVec3f ( dx/2, dy/2 + distance, dz/2)); three4thsPoint = initialPosition.add (new SFVec3f (3*dx/4, 3*dy/4 + 0.707*distance/2, 3*dz/4)); position_changeds = new MFVec3f (initialPosition, initialPosition, quarterPoint, halfwaypoint, three4thsPoint, finalPosition); // Browser.println ('position_changeds =' + position_changeds); rotationValues = new MFRotation (initialOrientation, finalOrientation); // Browser.println ('initialPosition =' + initialPosition); // Browser.println ('finalPosition =' + finalPosition); // Browser.println ('position_changeds =' + position_changeds); // Browser.println ('initialOrientation=' + initialOrientation); // Browser.println ('finalOrientation =' + finalOrientation); // Browser.println ('rotationValues=' + rotationValues); } """), TimeSensor(DEF='ProtoTimeSensor', IS=IS( connect=[ connect(nodeField='startTime',protoField='startTime')])), PositionInterpolator(DEF='ProtoPositionInterpolatorCalculated',key=[0,0.2,0.4,0.6,0.8,1],keyValue=[(0,0,0),(0,0,0),(0,0,0),(0,0,0),(0,0,0),(0,0,0)], IS=IS( connect=[ connect(nodeField='set_fraction',protoField='set_fraction')])), OrientationInterpolator(DEF='ProtoOrientationInterpolatorCalculated',key=[0,1],keyValue=[(0,1,0,0),(0,1,0,0)], IS=IS( connect=[ connect(nodeField='set_fraction',protoField='set_fraction')])), ROUTE(fromField='value_changed',fromNode='ProtoPositionInterpolatorCalculated',toField='translation',toNode='LocationTransform'), ROUTE(fromField='value_changed',fromNode='ProtoOrientationInterpolatorCalculated',toField='rotation',toNode='RotationTransform'), ROUTE(fromField='position_changeds',fromNode='ProtoAnimationScript',toField='keyValue',toNode='ProtoPositionInterpolatorCalculated'), ROUTE(fromField='rotationValues',fromNode='ProtoAnimationScript',toField='keyValue',toNode='ProtoOrientationInterpolatorCalculated'), ROUTE(fromField='runTime',fromNode='ProtoAnimationScript',toField='cycleInterval',toNode='ProtoTimeSensor'), ROUTE(fromField='fraction_changed',fromNode='ProtoTimeSensor',toField='set_fraction',toNode='ProtoPositionInterpolatorCalculated'), ROUTE(fromField='fraction_changed',fromNode='ProtoTimeSensor',toField='set_fraction',toNode='ProtoOrientationInterpolatorCalculated')])), # ==================== Viewpoint(description='Multiple Timer Exploding Building',position=(0,0,12)), Background(groundAngle=[1.57],groundColor=[(0.6,0.9,0.6),(0.6,0.9,0.6)],skyColor=[(0.6,0.6,0.9)]), Anchor(description='MultipleTimerExplodingBuildingExample',parameter=["target=_blank"],url=["MultipleTimerExplodingBuildingExample.x3d","https://savage.nps.edu/Savage/Tools/Explosions/MultipleTimerExplodingBuildingExample.x3d","MultipleTimerExplodingBuildingExample.wrl","https://savage.nps.edu/Savage/Tools/Explosions/MultipleTimerExplodingBuildingExample.wrl"], children=[ Shape( geometry=Text(string=["MultipleTimerExplodingBuildingPrototype","is a prototype definition file","","Click this text to see","MultipleTimerExplodingBuildingExample"], fontStyle=FontStyle(justify=["MIDDLE","MIDDLE"])), appearance=Appearance( material=Material(diffuseColor=(0.2,0.2,0.8))))])]) ) # X3D model complete #################################################################################################### # Self-test diagnostics #################################################################################################### print('Self-test diagnostics for MultipleTimerExplodingBuildingPrototype.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 MultipleTimerExplodingBuildingPrototype.py load and self-test diagnostics complete.")