####################################################################################################
#
# Invoking X3D model self-test:
#
#   $ python TailRotor.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='TailRotor.x3d',name='title'),
    meta(content='This file defines a tail rotor that is inlined to create the tail boom of a helicopter',name='description'),
    meta(content='Jane Wu (adapted from the original tailrotor2.wrl created for vrtp demo helicopter)',name='creator'),
    meta(content='8 January 2001',name='created'),
    meta(content='20 October 2019',name='modified'),
    meta(content='https://www.web3d.org/x3d/content/examples/Savage/AircraftHelicopters/HelicopterUnitedStates/TailRotor.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='TailRotor.x3d'),
    Group(
      children=[
      Transform(DEF='TailRotor',
        children=[
        Transform(rotation=(1.0,0.0,0.0,1.57),translation=(0.0,0.0,-0.14),
          children=[
          Shape(
            appearance=Appearance(
              material=Material(diffuseColor=(0.75,0.75,0.75))),
            geometry=Cylinder(height=0.35,radius=0.02))]),
        Transform(translation=(-0.05,0.0,0.0),
          children=[
          Shape(DEF='Blade',
            appearance=Appearance(
              material=Material(diffuseColor=(0.2,0.2,0.2))),
            geometry=Extrusion(creaseAngle=0.8,crossSection=[(0.00,0.00),(0.03,-0.005),(0.05,-0.007),(0.07,-0.009),(0.09,-0.01),(0.11,-0.009),(0.12,-0.007),(0.13,-0.005),(0.135,0.0),(0.13,0.005),(0.12,0.007),(0.11,0.009),(0.09,0.01),(0.07,0.009),(0.05,0.007),(0.03,0.005),(0,0)],solid=False,spine=[(-0.015,0.02,0.0),(-0.015,0.82,0.0)]))]),
        Transform(rotation=(1,0,0,3.14),translation=(0.05,0,0),
          children=[
          Transform(rotation=(0,1,0,3.14),
            children=[
            Shape(USE='Blade')])])]),
      TimeSensor(DEF='Clock',loop=True),
      OrientationInterpolator(DEF='TailRotorPath',key=[0.0,0.25,0.5,0.75,1.0],keyValue=[(0.00,0.00,1.00,0.00),(0.00,0.00,1.00,1.57),(0.00,0.00,1.00,3.14),(0.00,0.00,1.00,4.712),(0.00,0.00,1.00,6.284)])]),
    ROUTE(fromField='fraction_changed',fromNode='Clock',toField='set_fraction',toNode='TailRotorPath'),
    ROUTE(fromField='value_changed',fromNode='TailRotorPath',toField='set_rotation',toNode='TailRotor')])
)

### X3D model conversion complete ###

####################################################################################################
# Self-test diagnostics
####################################################################################################

print('Self-test diagnostics for TailRotor.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 TailRotor.py load and self-test diagnostics complete.")