#################################################################################################### # # Invoking X3D model self-test: # # $ python ElevationGridNonPlanarQuadrilaterals.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='3.3', head=head( children=[ meta(content='ElevationGridNonPlanarQuadrilaterals.x3d',name='title'), meta(content='Show how a single nonplanar quadrilateral can be tesselated in 2 different ways.',name='description'), meta(content='Don Brutzman',name='creator'), meta(content='U.S. Naval Postgraduate School (NPS)',name='contributor'), meta(content='28 August 2005',name='created'), meta(content='20 October 2019',name='modified'), meta(content='https://www.web3d.org/x3d/content/examples/X3dForWebAuthors/Chapter06GeometryPointsLinesPolygons/ElevationGridNonPlanarQuadrilaterals.x3d',name='identifier'), meta(content='X3D-Edit 3.3, https://www.web3d.org/x3d/tools/X3D-Edit',name='generator'), meta(content='../license.html',name='license')]), Scene=Scene( children=[ WorldInfo(title='ElevationGridNonPlanarQuadrilaterals.x3d'), NavigationInfo(DEF='ExamineMode'), NavigationInfo(DEF='FlyPanNavigation',type=["FLY","ANY"]), Background(skyColor=[(1,1,1)]), Viewpoint(description='Book View',orientation=(0,1,0,0.01),position=(0.13,0.2,7.71)), Viewpoint(DEF='DefaultView',description='ElevationGrid tessellation examples',position=(0,0.2,10)), ROUTE(fromField='isBound',fromNode='DefaultView',toField='set_bind',toNode='FlyPanNavigation'), Transform(translation=(0,-0.75,0), children=[ Transform(DEF='FigureElevationGridBack',translation=(-4,0,0), children=[ Comment('Note that the base of each piece of polygonal geometry is based at (1 0 1)'), Viewpoint(description='Default brower ElevationGrid tessellation, front view',position=(1.5,0.4,4)), Transform(center=(1,0,1),rotation=(0,1,0,3.2), children=[ Group(DEF='DefaultElevationGrid', children=[ Shape(DEF='ExampleElevationGridShape', geometry=ElevationGrid(height=[0,0.5,0,0],solid=False), appearance=Appearance(DEF='DiffuseRedAppearance', material=Material(diffuseColor=(0.9,0.1,0.1),transparency=0.1))), Transform(DEF='FigureLabelBrowserElevationGrid',translation=(0.5,1,0.5), children=[ Billboard( children=[ Shape( geometry=Text(string=["Browser","ElevationGrid"], fontStyle=FontStyle(DEF='CenterFS',justify=["MIDDLE","MIDDLE"],size=0.25)), appearance=Appearance(DEF='LabelAppearance', material=Material(diffuseColor=(0.2,0.1,0.8))))])]), Group(DEF='CommonFigureElements', children=[ Shape(DEF='QuadOutlineShape', geometry=IndexedLineSet(colorIndex=[0,0,0,0],colorPerVertex=False,coordIndex=[0,1,3,2,0,-1], # first iterate on x-axis, then z-xis coord=Coordinate(DEF='QuadrilateralPoints',point=[(0,0,0),(1,0.5,0),(0,0,1),(1,0,1),(1,0,0)]), color=Color(DEF='White',color=[(1,1,1)]))), Shape(DEF='FloorShape', # setting all height values to zero is a simple way to get a square outline. A more efficient way is to use an IndexedFaceSet. geometry=ElevationGrid(solid=False), appearance=Appearance(DEF='TransparentGreyAppearance', material=Material(diffuseColor=(0,0,0),transparency=0.8))), Transform(DEF='PointLabels',translation=(0,-0.2,0), children=[ Billboard( children=[ Shape( geometry=Text(string=["h0"], fontStyle=FontStyle(USE='CenterFS')), appearance=Appearance(USE='LabelAppearance'))]), Transform(translation=(1,0,0), children=[ Billboard( children=[ Shape( geometry=Text(string=["h1"], fontStyle=FontStyle(USE='CenterFS')), appearance=Appearance(USE='LabelAppearance'))])]), Transform(translation=(0,0,1), children=[ Billboard( children=[ Shape( geometry=Text(string=["h2"], fontStyle=FontStyle(USE='CenterFS')), appearance=Appearance(USE='LabelAppearance'))])]), Transform(translation=(1,0,1), children=[ Billboard( children=[ Shape( geometry=Text(string=["h3"], fontStyle=FontStyle(USE='CenterFS')), appearance=Appearance(USE='LabelAppearance'))])])]), Shape(DEF='QuadVerticalLineShape', geometry=IndexedLineSet(colorIndex=[0,0,0,0],colorPerVertex=False,coordIndex=[1,4,-1], coord=Coordinate(USE='QuadrilateralPoints'), color=Color(USE='White')))]), Shape(DEF='QuadCrossDiagonalLineShape', geometry=IndexedLineSet(colorIndex=[0,0,0,0],colorPerVertex=False,coordIndex=[2,1,-1], coord=Coordinate(USE='QuadrilateralPoints'), color=Color(USE='White'))), Shape(DEF='QuadCenterDiagonalLineShape', geometry=IndexedLineSet(colorIndex=[0,0,0,0],colorPerVertex=False,coordIndex=[0,3,-1], coord=Coordinate(USE='QuadrilateralPoints'), color=Color(USE='White')))])])]), Transform(DEF='FigureElevationGridFront',translation=(-1,0,0), children=[ Viewpoint(description='Default brower ElevationGrid tessellation, back view',position=(0.5,0.4,4)), Transform(center=(1,0,1),rotation=(0,1,0,0.8), children=[ Group(USE='DefaultElevationGrid')])]), Transform(DEF='FigureIfsCenterDiagonal',translation=(1,0,0), children=[ Viewpoint(description='Center-diagonal tessellation',position=(0.5,0.4,4)), Transform(center=(1,0,1),rotation=(0,1,0,0.4), children=[ Shape( geometry=IndexedFaceSet(coordIndex=[0,3,1,-1,0,2,3,-1], coord=Coordinate(USE='QuadrilateralPoints')), appearance=Appearance(USE='DiffuseRedAppearance')), Transform(DEF='FigureLabelCenterDiagonalTessellation',translation=(0.5,1,0.5), children=[ Billboard( children=[ Shape( geometry=Text(string=["Center Diagonal","Tessellation"], fontStyle=FontStyle(USE='CenterFS')), appearance=Appearance(USE='LabelAppearance'))])]), Group(USE='CommonFigureElements'), Shape(USE='QuadCenterDiagonalLineShape')])]), Transform(DEF='FigureIfsCrossDiagonal',translation=(3,0,0), children=[ Viewpoint(description='Cross-diagonal tessellation',position=(0.5,0.4,4)), Transform(center=(1,0,1), children=[ Shape( geometry=IndexedFaceSet(coordIndex=[0,2,1,-1,2,3,1,-1], coord=Coordinate(USE='QuadrilateralPoints')), appearance=Appearance(USE='DiffuseRedAppearance')), Transform(DEF='FigureLabelCrossDiagonalTessellation',translation=(0.5,1,0.5), children=[ Billboard( children=[ Shape( geometry=Text(string=["Cross Diagonal","Tessellation"], fontStyle=FontStyle(USE='CenterFS')), appearance=Appearance(USE='LabelAppearance'))])]), Group(USE='CommonFigureElements'), Shape(USE='QuadCrossDiagonalLineShape')])])])]) ) ### X3D model conversion complete ### #################################################################################################### # Self-test diagnostics #################################################################################################### print('Self-test diagnostics for ElevationGridNonPlanarQuadrilaterals.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 ElevationGridNonPlanarQuadrilaterals.py load and self-test diagnostics complete.")