#################################################################################################### # # Invoking X3D model self-test: # # $ python HiddenViewpointPrototype.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='3.0', head=head( children=[ meta(content='HiddenViewpointPrototype.x3d',name='title'), meta(content="Prototype to produce hidden viewpoints that becomes active (binds) upon pointer selection to reveal an interesting view, with an optionally label. Especially cool is deselecting: the user returns to wherever the previous viewpoint was. Numerous HiddenViewpoints can be used without cluttering up the browser's viewpoint description list.",name='description'), meta(content='Don Brutzman',name='creator'), meta(content='1 May 2001',name='created'), meta(content='28 November 2019',name='modified'), meta(content='HiddenViewpointTest-WaypointInterpolator.png',name='Image'), meta(content='https://www.web3d.org/x3d/content/examples/Savage/Tools/Animation/HiddenViewpointTest-WaypointInterpolator.png',name='Image'), meta(content='WaypointInterpolatorExample.x3d',name='reference'), meta(content='https://www.web3d.org/x3d/content/examples/Savage/Tools/Animation/HiddenViewpointPrototype.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='HiddenViewpointPrototype.x3d'), ProtoDeclare(appinfo='Hidden viewpoint becomes active (binds) upon pointer selection to reveal an interesting view with an optionally label',name='HiddenViewpoint', ProtoInterface=ProtoInterface( field=[ field(accessType='inputOutput',name='position',type='SFVec3f',value=(0,0,0)), field(accessType='inputOutput',name='rotation',type='SFRotation',value=(0,1,0,0)), field(accessType='initializeOnly',name='sensorRadius',type='SFFloat',value=1), field(accessType='inputOnly',name='activate',type='SFBool'), field(accessType='inputOutput',name='label',type='MFString'), field(accessType='inputOutput',name='labelOffset',type='SFVec3f',value=(0,-1,0)), field(accessType='initializeOnly',name='labelFontSize',type='SFFloat',value=1), field(accessType='inputOutput',name='labelColor',type='SFColor',value=(0.8,0.8,0.8))]), ProtoBody=ProtoBody( children=[ Comment(' Touchable Sphere to bind a labeled local viewpoint while clicked... '), Transform(DEF='LocationTransform', IS=IS( connect=[ connect(nodeField='translation',protoField='position'), connect(nodeField='center',protoField='position'), connect(nodeField='rotation',protoField='rotation')]), children=[ Shape( geometry=Sphere(DEF='TransparentSphere', IS=IS( connect=[ connect(nodeField='radius',protoField='sensorRadius')])), appearance=Appearance( material=Material(transparency=1))), TouchSensor(DEF='InvisibleTouchSensorNoDescription'), Transform(DEF='HiddenViewpointTransform', IS=IS( connect=[ connect(nodeField='translation',protoField='labelOffset')]), Comment(' No description is provided for HiddenViewpoint so that it does NOT appear in the viewpoint list. '), Viewpoint(DEF='HiddenViewNoDescription',position=(0,0,4), IS=IS( connect=[ connect(nodeField='set_bind',protoField='activate')]))]), LOD(DEF='LabelTextLOD',range=[8], children=[ Group( children=[ Transform(DEF='LabelTransform', IS=IS( connect=[ connect(nodeField='translation',protoField='labelOffset')]), children=[ Shape( geometry=Text(DEF='LabelText', IS=IS( connect=[ connect(nodeField='string',protoField='label')]), fontStyle=FontStyle(DEF='LabelFontStyle',justify=["MIDDLE","MIDDLE"], IS=IS( connect=[ connect(nodeField='size',protoField='labelFontSize')]))), appearance=Appearance( material=Material(DEF='TextMaterial',diffuseColor=(0,0,0), IS=IS( connect=[ connect(nodeField='emissiveColor',protoField='labelColor')])), # emissiveColor used for TextMaterial so that label is visible regardless. Thus diffuseColor set to (0 0 0) so that default value (0.8 0.8 0.8) doesn't wash out emissive. ))])]), WorldInfo(info=["null node"])])]), ROUTE(fromField='isActive',fromNode='InvisibleTouchSensorNoDescription',toField='set_bind',toNode='HiddenViewNoDescription')])), Comment(' ====================================== '), Viewpoint(description='HiddenViewpoint launch',position=(0,0,12)), Anchor(description='WaypointInterpolator example',parameter=["target=_blank"],url=["WaypointInterpolatorExample.x3d","https://www.web3d.org/x3d/content/examples/Savage/Tools/Animation/WaypointInterpolatorExample.x3d","WaypointInterpolatorExample.wrl","https://www.web3d.org/x3d/content/examples/Savage/Tools/Animation/WaypointInterpolatorExample.wrl"], children=[ Shape( geometry=Text(string=["Click on this text to see","HiddenViewpoint example use","","then click beneath origin axes","in WaypointInterpolator","example scene"], fontStyle=FontStyle(justify=["MIDDLE","MIDDLE"])), appearance=Appearance( material=Material(diffuseColor=(1,1,0.2))))])]) ) ### X3D model conversion complete ### #################################################################################################### # Self-test diagnostics #################################################################################################### print('Self-test diagnostics for HiddenViewpointPrototype.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 HiddenViewpointPrototype.py load and self-test diagnostics complete.")