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</o:shapelayout></xml><![endif]--></head><body lang=EN-GB link=blue vlink="#954F72"><div class=WordSection1><p class=MsoNormal><span style='mso-fareast-language:EN-US'>John,<o:p></o:p></span></p><p class=MsoNormal><span style='mso-fareast-language:EN-US'><o:p> </o:p></span></p><p class=MsoNormal><span style='mso-fareast-language:EN-US'>JSON, just like the VRML encoding, does not need containerField. This is because the child content is listed below the specific field that contains it. So, for example, consider a CADFace listing from the JSON file you attached:<o:p></o:p></span></p><p class=MsoNormal><span style='mso-fareast-language:EN-US'><o:p> </o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'>{</span><span style='font-size:10.0pt;font-family:Consolas;color:black;background:white;mso-highlight:white'> </span><span style='font-size:10.0pt;font-family:Consolas;color:maroon;background:white;mso-highlight:white'>"CADFace"</span><span style='font-size:10.0pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'>:</span><span style='font-size:10.0pt;font-family:Consolas;color:black;background:white;mso-highlight:white'><o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:Consolas;color:black;background:white;mso-highlight:white'> </span><span style='font-size:10.0pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'>{</span><span style='font-size:10.0pt;font-family:Consolas;color:black;background:white;mso-highlight:white'><o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:Consolas;color:black;background:white;mso-highlight:white'> </span><span style='font-size:10.0pt;font-family:Consolas;color:maroon;background:white;mso-highlight:white'>"@name"</span><span style='font-size:10.0pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'>:</span><span style='font-size:10.0pt;font-family:Consolas;color:black;background:white;mso-highlight:white'>"outerSurface"</span><span style='font-size:10.0pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'>,</span><span style='font-size:10.0pt;font-family:Consolas;color:black;background:white;mso-highlight:white'><o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:Consolas;color:black;background:white;mso-highlight:white'> </span><span style='font-size:10.0pt;font-family:Consolas;color:maroon;background:white;mso-highlight:white'>"-shape"</span><span style='font-size:10.0pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'>:</span><span style='font-size:10.0pt;font-family:Consolas;color:black;background:white;mso-highlight:white'><o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:Consolas;color:black;background:white;mso-highlight:white'> </span><span style='font-size:10.0pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'>{</span><span style='font-size:10.0pt;font-family:Consolas;color:black;background:white;mso-highlight:white'> </span><span style='font-size:10.0pt;font-family:Consolas;color:maroon;background:white;mso-highlight:white'>"Shape"</span><span style='font-size:10.0pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'>:</span><span style='font-size:10.0pt;font-family:Consolas;color:black;background:white;mso-highlight:white'><o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:Consolas;color:black;background:white;mso-highlight:white'> </span><span style='font-size:10.0pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'>{</span><span style='font-size:10.0pt;font-family:Consolas;color:black;background:white;mso-highlight:white'><o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:Consolas;color:black;background:white;mso-highlight:white'> </span><span style='font-size:10.0pt;font-family:Consolas;color:maroon;background:white;mso-highlight:white'>"-children"</span><span style='font-size:10.0pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'>:[</span><span style='font-size:10.0pt;font-family:Consolas;color:black;background:white;mso-highlight:white'><o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:Consolas;color:black;background:white;mso-highlight:white'> </span><span style='font-size:10.0pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'>{</span><span style='font-size:10.0pt;font-family:Consolas;color:black;background:white;mso-highlight:white'> </span><span style='font-size:10.0pt;font-family:Consolas;color:maroon;background:white;mso-highlight:white'>"#comment"</span><span style='font-size:10.0pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'>:</span><span style='font-size:10.0pt;font-family:Consolas;color:black;background:white;mso-highlight:white'>"note solid='true' and so one-sided external rendering only"<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:Consolas;color:black;background:white;mso-highlight:white'> </span><span style='font-size:10.0pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'>}</span><span style='font-size:10.0pt;font-family:Consolas;color:black;background:white;mso-highlight:white'><o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:Consolas;color:black;background:white;mso-highlight:white'> </span><span style='font-size:10.0pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'>],</span><span style='font-size:10.0pt;font-family:Consolas;color:black;background:white;mso-highlight:white'><o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:Consolas;color:black;background:white;mso-highlight:white'> </span><span style='font-size:10.0pt;font-family:Consolas;color:maroon;background:white;mso-highlight:white'>"-geometry"</span><span style='font-size:10.0pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'>:</span><span style='font-size:10.0pt;font-family:Consolas;color:black;background:white;mso-highlight:white'><o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:Consolas;color:black;background:white;mso-highlight:white'> </span><span style='font-size:10.0pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'>{</span><span style='font-size:10.0pt;font-family:Consolas;color:black;background:white;mso-highlight:white'> </span><span style='font-size:10.0pt;font-family:Consolas;color:maroon;background:white;mso-highlight:white'>"Cylinder"</span><span style='font-size:10.0pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'>:</span><span style='font-size:10.0pt;font-family:Consolas;color:black;background:white;mso-highlight:white'><o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:Consolas;color:black;background:white;mso-highlight:white'> </span><span style='font-size:10.0pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'>{</span><span style='font-size:10.0pt;font-family:Consolas;color:black;background:white;mso-highlight:white'><o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:Consolas;color:black;background:white;mso-highlight:white'> </span><span style='font-size:10.0pt;font-family:Consolas;color:maroon;background:white;mso-highlight:white'>"@bottom"</span><span style='font-size:10.0pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'>:</span><span style='font-size:10.0pt;font-family:Consolas;color:teal;background:white;mso-highlight:white'>false</span><span style='font-size:10.0pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'>,</span><span style='font-size:10.0pt;font-family:Consolas;color:black;background:white;mso-highlight:white'><o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:Consolas;color:black;background:white;mso-highlight:white'> </span><span style='font-size:10.0pt;font-family:Consolas;color:maroon;background:white;mso-highlight:white'>"@height"</span><span style='font-size:10.0pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'>:</span><span style='font-size:10.0pt;font-family:Consolas;color:teal;background:white;mso-highlight:white'>3</span><span style='font-size:10.0pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'>,</span><span style='font-size:10.0pt;font-family:Consolas;color:black;background:white;mso-highlight:white'><o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:Consolas;color:black;background:white;mso-highlight:white'> </span><span style='font-size:10.0pt;font-family:Consolas;color:maroon;background:white;mso-highlight:white'>"@radius"</span><span style='font-size:10.0pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'>:</span><span style='font-size:10.0pt;font-family:Consolas;color:teal;background:white;mso-highlight:white'>2</span><span style='font-size:10.0pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'>,</span><span style='font-size:10.0pt;font-family:Consolas;color:black;background:white;mso-highlight:white'><o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:Consolas;color:black;background:white;mso-highlight:white'> </span><span style='font-size:10.0pt;font-family:Consolas;color:maroon;background:white;mso-highlight:white'>"@top"</span><span style='font-size:10.0pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'>:</span><span style='font-size:10.0pt;font-family:Consolas;color:teal;background:white;mso-highlight:white'>false</span><span style='font-size:10.0pt;font-family:Consolas;color:black;background:white;mso-highlight:white'><o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:Consolas;color:black;background:white;mso-highlight:white'> </span><span style='font-size:10.0pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'>}</span><span style='font-size:10.0pt;font-family:Consolas;color:black;background:white;mso-highlight:white'><o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:Consolas;color:black;background:white;mso-highlight:white'> </span><span style='font-size:10.0pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'>},</span><span style='font-size:10.0pt;font-family:Consolas;color:black;background:white;mso-highlight:white'><o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:Consolas;color:black;background:white;mso-highlight:white'> </span><span style='font-size:10.0pt;font-family:Consolas;color:maroon;background:white;mso-highlight:white'>"-appearance"</span><span style='font-size:10.0pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'>:</span><span style='font-size:10.0pt;font-family:Consolas;color:black;background:white;mso-highlight:white'><o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:Consolas;color:black;background:white;mso-highlight:white'> </span><span style='font-size:10.0pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'>{</span><span style='font-size:10.0pt;font-family:Consolas;color:black;background:white;mso-highlight:white'> </span><span style='font-size:10.0pt;font-family:Consolas;color:maroon;background:white;mso-highlight:white'>"Appearance"</span><span style='font-size:10.0pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'>:</span><span style='font-size:10.0pt;font-family:Consolas;color:black;background:white;mso-highlight:white'><o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:Consolas;color:black;background:white;mso-highlight:white'> </span><span style='font-size:10.0pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'>{</span><span style='font-size:10.0pt;font-family:Consolas;color:black;background:white;mso-highlight:white'><o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:Consolas;color:black;background:white;mso-highlight:white'> </span><span style='font-size:10.0pt;font-family:Consolas;color:maroon;background:white;mso-highlight:white'>"@DEF"</span><span style='font-size:10.0pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'>:</span><span style='font-size:10.0pt;font-family:Consolas;color:black;background:white;mso-highlight:white'>"AppearanceGrey"</span><span style='font-size:10.0pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'>,</span><span style='font-size:10.0pt;font-family:Consolas;color:black;background:white;mso-highlight:white'><o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:Consolas;color:black;background:white;mso-highlight:white'> </span><span style='font-size:10.0pt;font-family:Consolas;color:maroon;background:white;mso-highlight:white'>"-material"</span><span style='font-size:10.0pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'>:</span><span style='font-size:10.0pt;font-family:Consolas;color:black;background:white;mso-highlight:white'><o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:Consolas;color:black;background:white;mso-highlight:white'> </span><span style='font-size:10.0pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'>{</span><span style='font-size:10.0pt;font-family:Consolas;color:black;background:white;mso-highlight:white'> </span><span style='font-size:10.0pt;font-family:Consolas;color:maroon;background:white;mso-highlight:white'>"Material"</span><span style='font-size:10.0pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'>:</span><span style='font-size:10.0pt;font-family:Consolas;color:black;background:white;mso-highlight:white'><o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:Consolas;color:black;background:white;mso-highlight:white'> </span><span style='font-size:10.0pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'>{</span><span style='font-size:10.0pt;font-family:Consolas;color:black;background:white;mso-highlight:white'><o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:Consolas;color:black;background:white;mso-highlight:white'> </span><span style='font-size:10.0pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'>}</span><span style='font-size:10.0pt;font-family:Consolas;color:black;background:white;mso-highlight:white'><o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:Consolas;color:black;background:white;mso-highlight:white'> </span><span style='font-size:10.0pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'>}</span><span style='font-size:10.0pt;font-family:Consolas;color:black;background:white;mso-highlight:white'><o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:Consolas;color:black;background:white;mso-highlight:white'> </span><span style='font-size:10.0pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'>}</span><span style='font-size:10.0pt;font-family:Consolas;color:black;background:white;mso-highlight:white'><o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:Consolas;color:black;background:white;mso-highlight:white'> </span><span style='font-size:10.0pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'>}</span><span style='font-size:10.0pt;font-family:Consolas;color:black;background:white;mso-highlight:white'><o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:Consolas;color:black;background:white;mso-highlight:white'> </span><span style='font-size:10.0pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'>}</span><span style='font-size:10.0pt;font-family:Consolas;color:black;background:white;mso-highlight:white'><o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:Consolas;color:black;background:white;mso-highlight:white'> </span><span style='font-size:10.0pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'>}</span><span style='font-size:10.0pt;font-family:Consolas;color:black;background:white;mso-highlight:white'><o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:Consolas;color:black;background:white;mso-highlight:white'> </span><span style='font-size:10.0pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'>}</span><span style='font-size:10.0pt;font-family:Consolas;color:black;background:white;mso-highlight:white'><o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'>}</span><span style='font-size:10.0pt;font-family:Consolas;color:black;background:white;mso-highlight:white'><o:p></o:p></span></p><p class=MsoNormal><span style='mso-fareast-language:EN-US'><o:p> </o:p></span></p><p class=MsoNormal><span style='mso-fareast-language:EN-US'>The CADFace node has the value of two fields specified. The first is the “name” field, with the value “outerSurface”. The second is the “shape” field, with the value being the “Shape” node.<o:p></o:p></span></p><p class=MsoNormal><span style='mso-fareast-language:EN-US'><o:p> </o:p></span></p><p class=MsoNormal><span style='mso-fareast-language:EN-US'>How does this appear in the XML encoding? It is :<o:p></o:p></span></p><p class=MsoNormal><span style='mso-fareast-language:EN-US'><o:p> </o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'><</span><span style='font-size:10.0pt;font-family:Consolas;color:maroon;background:white;mso-highlight:white'>CADFace</span><span style='font-size:10.0pt;font-family:Consolas;color:red;background:white;mso-highlight:white'> name</span><span style='font-size:10.0pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'>="</span><span style='font-size:10.0pt;font-family:Consolas;color:black;background:white;mso-highlight:white'>outerSurface</span><span style='font-size:10.0pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'>"><o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'> <</span><span style='font-size:10.0pt;font-family:Consolas;color:maroon;background:white;mso-highlight:white'>Shape</span><span style='font-size:10.0pt;font-family:Consolas;color:red;background:white;mso-highlight:white'> containerField</span><span style='font-size:10.0pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'>="</span><span style='font-size:10.0pt;font-family:Consolas;color:black;background:white;mso-highlight:white'>shape</span><span style='font-size:10.0pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'>"><!--</span><span style='font-size:10.0pt;font-family:Consolas;color:gray;background:white;mso-highlight:white'>note solid='true' and so one-sided external rendering only</span><span style='font-size:10.0pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'>--><o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'> <</span><span style='font-size:10.0pt;font-family:Consolas;color:maroon;background:white;mso-highlight:white'>Cylinder</span><span style='font-size:10.0pt;font-family:Consolas;color:red;background:white;mso-highlight:white'> containerField</span><span style='font-size:10.0pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'>="</span><span style='font-size:10.0pt;font-family:Consolas;color:black;background:white;mso-highlight:white'>geometry</span><span style='font-size:10.0pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'>"</span><span style='font-size:10.0pt;font-family:Consolas;color:red;background:white;mso-highlight:white'> bottom</span><span style='font-size:10.0pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'>="</span><span style='font-size:10.0pt;font-family:Consolas;color:black;background:white;mso-highlight:white'>false</span><span style='font-size:10.0pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'>"</span><span style='font-size:10.0pt;font-family:Consolas;color:red;background:white;mso-highlight:white'> height</span><span style='font-size:10.0pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'>="</span><span style='font-size:10.0pt;font-family:Consolas;color:black;background:white;mso-highlight:white'>3</span><span style='font-size:10.0pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'>"</span><span style='font-size:10.0pt;font-family:Consolas;color:red;background:white;mso-highlight:white'> radius</span><span style='font-size:10.0pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'>="</span><span style='font-size:10.0pt;font-family:Consolas;color:black;background:white;mso-highlight:white'>2</span><span style='font-size:10.0pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'>"</span><span style='font-size:10.0pt;font-family:Consolas;color:red;background:white;mso-highlight:white'> top</span><span style='font-size:10.0pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'>="</span><span style='font-size:10.0pt;font-family:Consolas;color:black;background:white;mso-highlight:white'>false</span><span style='font-size:10.0pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'>"></</span><span style='font-size:10.0pt;font-family:Consolas;color:maroon;background:white;mso-highlight:white'>Cylinder</span><span style='font-size:10.0pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'>></span><span style='font-size:10.0pt;font-family:Consolas;color:black;background:white;mso-highlight:white'><o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'> <</span><span style='font-size:10.0pt;font-family:Consolas;color:maroon;background:white;mso-highlight:white'>Appearance</span><span style='font-size:10.0pt;font-family:Consolas;color:red;background:white;mso-highlight:white'> containerField</span><span style='font-size:10.0pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'>="</span><span style='font-size:10.0pt;font-family:Consolas;color:black;background:white;mso-highlight:white'>appearance</span><span style='font-size:10.0pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'>"</span><span style='font-size:10.0pt;font-family:Consolas;color:red;background:white;mso-highlight:white'> DEF</span><span style='font-size:10.0pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'>="</span><span style='font-size:10.0pt;font-family:Consolas;color:black;background:white;mso-highlight:white'>AppearanceGrey</span><span style='font-size:10.0pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'>"><o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'> <</span><span style='font-size:10.0pt;font-family:Consolas;color:maroon;background:white;mso-highlight:white'>Material</span><span style='font-size:10.0pt;font-family:Consolas;color:red;background:white;mso-highlight:white'> containerField</span><span style='font-size:10.0pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'>="</span><span style='font-size:10.0pt;font-family:Consolas;color:black;background:white;mso-highlight:white'>material</span><span style='font-size:10.0pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'>"></</span><span style='font-size:10.0pt;font-family:Consolas;color:maroon;background:white;mso-highlight:white'>Material</span><span style='font-size:10.0pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'>></span><span style='font-size:10.0pt;font-family:Consolas;color:black;background:white;mso-highlight:white'><o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'> </</span><span style='font-size:10.0pt;font-family:Consolas;color:maroon;background:white;mso-highlight:white'>Appearance</span><span style='font-size:10.0pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'>></span><span style='font-size:10.0pt;font-family:Consolas;color:black;background:white;mso-highlight:white'><o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'> </</span><span style='font-size:10.0pt;font-family:Consolas;color:maroon;background:white;mso-highlight:white'>Shape</span><span style='font-size:10.0pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'>></span><span style='font-size:10.0pt;font-family:Consolas;color:black;background:white;mso-highlight:white'><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'></</span><span style='font-size:10.0pt;font-family:Consolas;color:maroon;background:white;mso-highlight:white'>CADFace</span><span style='font-size:10.0pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'>></span><span style='mso-fareast-language:EN-US'> <o:p></o:p></span></p><p class=MsoNormal><span style='mso-fareast-language:EN-US'><o:p> </o:p></span></p><p class=MsoNormal><span style='mso-fareast-language:EN-US'>So could have been written as follows:<o:p></o:p></span></p><p class=MsoNormal><span style='mso-fareast-language:EN-US'><o:p> </o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'><</span><span style='font-size:10.0pt;font-family:Consolas;color:maroon;background:white;mso-highlight:white'>CADFace</span><span style='font-size:10.0pt;font-family:Consolas;color:red;background:white;mso-highlight:white'> name</span><span style='font-size:10.0pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'>="</span><span style='font-size:10.0pt;font-family:Consolas;color:black;background:white;mso-highlight:white'>outerSurface</span><span style='font-size:10.0pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'>"><o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'> <</span><span style='font-size:10.0pt;font-family:Consolas;color:maroon;background:white;mso-highlight:white'>Shape</span><span style='font-size:10.0pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'>><!--</span><span style='font-size:10.0pt;font-family:Consolas;color:gray;background:white;mso-highlight:white'>note solid='true' and so one-sided external rendering only</span><span style='font-size:10.0pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'>--><o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'> <</span><span style='font-size:10.0pt;font-family:Consolas;color:maroon;background:white;mso-highlight:white'>Cylinder </span><span style='font-size:10.0pt;font-family:Consolas;color:red;background:white;mso-highlight:white'>bottom</span><span style='font-size:10.0pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'>="</span><span style='font-size:10.0pt;font-family:Consolas;color:black;background:white;mso-highlight:white'>false</span><span style='font-size:10.0pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'>"</span><span style='font-size:10.0pt;font-family:Consolas;color:red;background:white;mso-highlight:white'> height</span><span style='font-size:10.0pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'>="</span><span style='font-size:10.0pt;font-family:Consolas;color:black;background:white;mso-highlight:white'>3</span><span style='font-size:10.0pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'>"</span><span style='font-size:10.0pt;font-family:Consolas;color:red;background:white;mso-highlight:white'> radius</span><span style='font-size:10.0pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'>="</span><span style='font-size:10.0pt;font-family:Consolas;color:black;background:white;mso-highlight:white'>2</span><span style='font-size:10.0pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'>"</span><span style='font-size:10.0pt;font-family:Consolas;color:red;background:white;mso-highlight:white'> top</span><span style='font-size:10.0pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'>="</span><span style='font-size:10.0pt;font-family:Consolas;color:black;background:white;mso-highlight:white'>false</span><span style='font-size:10.0pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'>"></</span><span style='font-size:10.0pt;font-family:Consolas;color:maroon;background:white;mso-highlight:white'>Cylinder</span><span style='font-size:10.0pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'>></span><span style='font-size:10.0pt;font-family:Consolas;color:black;background:white;mso-highlight:white'><o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'> <</span><span style='font-size:10.0pt;font-family:Consolas;color:maroon;background:white;mso-highlight:white'>Appearance </span><span style='font-size:10.0pt;font-family:Consolas;color:red;background:white;mso-highlight:white'>DEF</span><span style='font-size:10.0pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'>="</span><span style='font-size:10.0pt;font-family:Consolas;color:black;background:white;mso-highlight:white'>AppearanceGrey</span><span style='font-size:10.0pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'>"><o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'> <</span><span style='font-size:10.0pt;font-family:Consolas;color:maroon;background:white;mso-highlight:white'>Material</span><span style='font-size:10.0pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'>></</span><span style='font-size:10.0pt;font-family:Consolas;color:maroon;background:white;mso-highlight:white'>Material</span><span style='font-size:10.0pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'>></span><span style='font-size:10.0pt;font-family:Consolas;color:black;background:white;mso-highlight:white'><o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'> </</span><span style='font-size:10.0pt;font-family:Consolas;color:maroon;background:white;mso-highlight:white'>Appearance</span><span style='font-size:10.0pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'>></span><span style='font-size:10.0pt;font-family:Consolas;color:black;background:white;mso-highlight:white'><o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'> </</span><span style='font-size:10.0pt;font-family:Consolas;color:maroon;background:white;mso-highlight:white'>Shape</span><span style='font-size:10.0pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'>></span><span style='font-size:10.0pt;font-family:Consolas;color:black;background:white;mso-highlight:white'><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'></</span><span style='font-size:10.0pt;font-family:Consolas;color:maroon;background:white;mso-highlight:white'>CADFace</span><span style='font-size:10.0pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'>></span><span style='mso-fareast-language:EN-US'> <o:p></o:p></span></p><p class=MsoNormal><span style='mso-fareast-language:EN-US'><o:p> </o:p></span></p><p class=MsoNormal><span style='mso-fareast-language:EN-US'>Notice that the “containerField” attributes have all been deleted. This might well fail to load. Why? Because, reference to the XML schema shows that the default value of “containerField” for the “Shape” node is “children”. However, CADFace does not have a “children” field. So, it is necessary to specify somehow which field the “Shape” node should be assigned to. Hence the “containerField” attribute.<o:p></o:p></span></p><p class=MsoNormal><span style='mso-fareast-language:EN-US'><o:p> </o:p></span></p><p class=MsoNormal><span style='mso-fareast-language:EN-US'>In summary, in the X3D standard 19775-1 there is no “containerField”. In the ClassicVRML encoding 19776-2 there is no “containerField”. In the JSON encoding 19776-5 there is no “containerField”. It is, however, in the XML encoding 19776-1. This is the only text encoding that it appears in. Note that it would not be expected to be included in an implementation. That is because, on loading into memory, and having created an instance of the “CADFace” node, the reading of the “Shape” node would create that instance, and then store the reference to it in the “shape” field of the “CADFace” node. So it is only required by the XML loader to determine which node field to add the child node reference to.<o:p></o:p></span></p><p class=MsoNormal><span style='mso-fareast-language:EN-US'><o:p> </o:p></span></p><p class=MsoNormal><span style='mso-fareast-language:EN-US'>All the best,<o:p></o:p></span></p><p class=MsoNormal><span style='mso-fareast-language:EN-US'><o:p> </o:p></span></p><p class=MsoNormal><span style='mso-fareast-language:EN-US'>Roy<o:p></o:p></span></p><p class=MsoNormal><span style='mso-fareast-language:EN-US'><o:p> </o:p></span></p><p class=MsoNormal><span style='mso-fareast-language:EN-US'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm 0cm 0cm'><p class=MsoNormal><b><span lang=EN-US>From:</span></b><span lang=EN-US> yottzumm@gmail.com [mailto:yottzumm@gmail.com] <br><b>Sent:</b> 21 February 2017 06:38<br><b>To:</b> Don Brutzman <brutzman@nps.edu>; Roy Walmsley <roy.walmsley@ntlworld.com>; X3D Graphics public mailing list <x3d-public@web3d.org><br><b>Subject:</b> How should CAD -shape containerField be expressed in X3DJSAIL<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><span lang=EN-US>Attached input JSON and converted Java. The Java does not produce -shape in the output JSON.json file [ not provided—compile and run the Java ]. Is this OK? I am currently using setShape in the Java. Why doesn’t the JSON.json have the containerField? Thanks!<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>John<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p></div></body></html>