####################################################################################################
#
# Invoking X3D model self-test:
#
#   $ python Cowling.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='Interchange',version='3.0',
  head=head(
    children=[
    meta(content='Cowling.x3d',name='title'),
    meta(content='This file defines a cowling that is inlined to create a helicopter',name='description'),
    meta(content='Jane Wu (adapted from the original cowling.wrl created for vrtp demo helicopter)',name='creator'),
    meta(content='12 January 2001',name='created'),
    meta(content='20 October 2019',name='modified'),
    meta(content='https://www.web3d.org/x3d/content/examples/Savage/AircraftHelicopters/HelicopterUnitedStates/Cowling.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='Cowling.x3d'),
    Group(
      children=[
      Background(groundAngle=[1.309,1.570796],groundColor=[(0.1,0.1,0.0),(0.4,0.25,0.2),(0.6,0.6,0.6)],skyAngle=[1.309,1.571],skyColor=[(0.0,0.2,0.7),(0.0,0.5,1.0),(1.0,1.0,1.0)]),
      Shape(
        appearance=Appearance(DEF='GREEN',
          material=Material(diffuseColor=(0.0,0.5,0.0))),
        geometry=IndexedFaceSet(coordIndex=[0,1,2,3,4,-1,5,9,8,7,6,-1,0,4,3,8,9,5,-1,1,10,11,2,-1,6,7,13,12,-1,10,14,15,11,-1,12,13,17,16,-1,14,18,19,15,-1,16,17,21,20,-1,18,20,21,19,-1,3,2,7,8,-1,2,11,13,7,-1,11,15,17,13,-1,15,19,21,17,-1],
          coord=Coordinate(point=[(0.0,0.0,0.0),(1.0,0.0,0.4),(1.0,1.0,0.4),(0.4,1.0,0.0),(0.4,0.6,0.0),(0.0,0.0,-0.5),(1.0,0.0,-0.9),(1.0,1.0,-0.9),(0.4,1.0,-0.5),(0.4,0.6,-0.5),(2.0,0.0,0.4),(2.0,1.0,0.4),(2.0,0.0,-0.9),(2.0,1.0,-0.9),(3.5,0.0,0.4),(3.5,0.8,0.4),(3.5,0.0,-0.9),(3.5,0.8,-0.9),(4.2,0.0,0.1),(4.0,0.6,0.1),(4.2,0.0,-0.6),(4.0,0.6,-0.6)]))),
      Transform(translation=(1.5,1.04,-0.25),
        children=[
        Shape(
          appearance=Appearance(
            material=Material(DEF='BALL_COLOR',diffuseColor=(0.4,0.4,0.4))),
          geometry=Sphere(radius=0.04))]),
      Transform(translation=(1.5,1.02,-0.25),
        children=[
        Shape(
          appearance=Appearance(
            material=Material(diffuseColor=(0.1,0.1,0.1))),
          geometry=Cylinder(height=0.05,radius=0.06))]),
      TimeSensor(DEF='CLOCK',loop=True),
      ColorInterpolator(DEF='COLOR_PATH',key=[0.0,0.5,0.5,1.0],keyValue=[(1.0,0.0,0.0),(1.0,0.0,0.0),(1.0,1.0,1.0),(1.0,1.0,1.0)])]),
    ROUTE(fromField='fraction_changed',fromNode='CLOCK',toField='set_fraction',toNode='COLOR_PATH'),
    ROUTE(fromField='value_changed',fromNode='COLOR_PATH',toField='set_emissiveColor',toNode='BALL_COLOR')])
)

### X3D model conversion complete ###

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

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