####################################################################################################
#
# Invoking X3D model self-test:
#
#   $ python LeftWheel.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='LeftWheel.x3d',name='title'),
    meta(content='Michael Collins',name='creator'),
    meta(content='LT Terry D. Norbraten, USN',name='.modifier'),
    meta(content='20 March 2001',name='created'),
    meta(content='20 October 2019',name='modified'),
    meta(content='Helicopter left main wheel. Black taurus for wheel and grey cylinders for axil and strut support. Box for floatation pylons.',name='description'),
    meta(content='X3D-Edit 3.2, https://www.web3d.org/x3d/tools/X3D-Edit',name='generator'),
    meta(content='https://www.fas.org/man/dod-101/sys/ac/sh-60.htm',name='reference'),
    meta(content='https://www.web3d.org/x3d/content/examples/Savage/AircraftHelicopters/SH60SeahawkUnitedStates/LeftWheel.x3d',name='identifier'),
    meta(content='../../license.html',name='license')]),
  Scene=Scene(
    children=[
    WorldInfo(title='LeftWheel.x3d'),
    Group(
      children=[
      Transform(rotation=(1,0,0,1.57),
        children=[
        Transform(rotation=(0,0,1,1.57),
          children=[
          Shape(DEF='Wheel',
            appearance=Appearance(
              material=Material(diffuseColor=(.2,.2,.2))),
            geometry=Extrusion(beginCap=False,convex=False,creaseAngle=1.57,crossSection=[(1.00,0.00),(0.92,-0.38),(0.71,-0.71),(0.38,-0.92),(0.00,-1.00),(-0.38,-0.92),(-0.71,-0.71),(-0.92,-0.38),(-1.00,-0.00),(-0.92,0.38),(-0.71,0.71),(-0.38,0.92),(0.00,1.00),(0.38,0.92),(0.71,0.71),(0.92,0.38),(1.00,0.00)],endCap=False,spine=[(2.00,0.0,0.00),(1.85,0.0,0.77),(1.41,0.0,1.41),(0.77,0.0,1.85),(0.00,0.0,2.00),(-0.77,0.0,1.85),(-1.41,0.0,1.41),(-1.85,0.0,0.77),(-2.00,0.0,0.00),(-1.85,0.0,-0.77),(-1.41,0.0,-1.41),(-0.77,0.0,-1.85),(0.00,0.0,-2.00),(0.77,0.0,-1.85),(1.41,0.0,-1.41),(1.85,0.0,-0.77),(2.00,0.0,0.00)])),
          Transform(translation=(0,-1,0),
            children=[
            Shape(DEF='Axil',
              geometry=Cylinder(height=3.4),
              appearance=Appearance(
                material=Material(),))]),
          Transform(rotation=(1,0,0,1.4),translation=(4.3,-2,-2),
            children=[
            Transform(rotation=(0,0,1,1.3),
              children=[
              Shape(
                geometry=Cylinder(height=8,radius=.7),
                appearance=Appearance(
                  material=Material(),)),
              Transform(translation=(0,-3,0),
                children=[
                Shape(
                  appearance=Appearance(
                    material=Material(),),
                  geometry=Box(size=(3,6,3)))])])])])]),
      Transform(scale=(.8,.8,.8),translation=(2,2,0),
        children=[
        Shape(USE='Axil')])]),
    Background(groundAngle=[1.309,1.570796],groundColor=[(0.1,0.1,0),(0.4,0.25,0.2),(0.6,0.6,0.6)],skyAngle=[1.309,1.571],skyColor=[(0,0.2,0.7),(0,0.5,1),(1,1,1)])])
)

### X3D model conversion complete ###

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

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