<div dir="ltr">Don, I'm a bit unsure of the new semantics for NurbsSet....it includes other parametric geometry nodes which aren't NURBS?<div><br></div><div>Would ParametricGeometrySet be a better name than NurbsSet, or a good addition to X3D4?</div><div><br></div><div>Is it counterintuitive to look for a "ParametricGeometrySet" inside NURBS sections?</div><div><br></div><div>How does this impact browser implementations?</div><div><br></div><div>I don't know if the standard includes parametric, implicit, etc. descriptions?</div><div><br></div><div>Are we planning on dropping X3DNurbsSurfaceGeometryNode in the future?</div><div><br></div><div>NURBS seems a bit specialized, but at least I know I'm looking for NURBS. Parametric seems *way* general, and should probably remain at the abstract level.</div><div><br></div><div>I have no other issues that come to mind presently.</div><div><br></div><div>I'm a bit leery of Mantis, so I will now review your next email. My summary: Can one include more than one abstract type in the allowable types? That is, allow both <span style="background-color:rgb(255,255,0);font-family:"Courier New";font-size:13.3333px">X3DParametricGeometryNode</span></div><div>and X3DNurbsSurfaceGeometryNode sub node types for geometry?</div><div><br></div><div>Thanks!</div><div><br></div><div>John</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Wed, May 11, 2022 at 8:06 PM Brutzman, Donald (Don) (CIV) <<a href="mailto:brutzman@nps.edu">brutzman@nps.edu</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div lang="EN-US" style="overflow-wrap: break-word;"><div class="gmail-m_1426268416439981635WordSection1"><p class="MsoNormal">NurbsSet should be inclusive about which nodes an author thinks can be rendered together as one smooth surface.<u></u><u></u></p><p class="MsoNormal"><u></u> <u></u></p><ul style="margin-top:0in" type="disc"><li class="gmail-m_1426268416439981635MsoListParagraph" style="margin-left:0in">Mantis 27.4.9 NurbSet - Change child geometry model to X3DParametricGeometryNode <u></u><u></u></li><li class="gmail-m_1426268416439981635MsoListParagraph" style="margin-left:0in"><a href="https://www.web3d.org/member-only/mantis/view.php?id=700" target="_blank">https://www.web3d.org/member-only/mantis/view.php?id=700</a><u></u><u></u></li></ul><p class="MsoNormal"><u></u> <u></u></p><ul style="margin-top:0in" type="disc"><li class="gmail-m_1426268416439981635MsoListParagraph" style="margin-left:0in">X3D4 Architecture, NURBS component, 27.4.8 NurbsSet<u></u><u></u></li><li class="gmail-m_1426268416439981635MsoListParagraph" style="margin-left:0in"><a href="https://www.web3d.org/specifications/X3Dv4Draft/ISO-IEC19775-1v4-CD1/Part01/components/nurbs.html#NurbsSet" target="_blank">https://www.web3d.org/specifications/X3Dv4Draft/ISO-IEC19775-1v4-CD1/Part01/components/nurbs.html#NurbsSet</a><u></u><u></u></li></ul><p class="MsoNormal"><u></u> <u></u></p><p class="MsoNormal">Since X3DParametricGeometryNode includes X3DNurbsSurfaceGeometryNode, changed all three NurbsSet geometry fields from X3DNurbsSurfaceGeometryNode to X3DParametricGeometryNode.<u></u><u></u></p><p class="MsoNormal"><u></u> <u></u></p><p class="MsoNormal"><span style="font-size:10pt;font-family:"Courier New"">NurbsSet : X3DChildNode, X3DBoundedObject {<u></u><u></u></span></p><p class="MsoNormal"><span style="font-size:10pt;font-family:"Courier New""> MFNode [in] addGeometry [<span style="background:yellow">X3DParametricGeometryNode</span>]<u></u><u></u></span></p><p class="MsoNormal"><span style="font-size:10pt;font-family:"Courier New""> MFNode [in] removeGeometry [<span style="background:yellow">X3DParametricGeometryNode</span>]<u></u><u></u></span></p><p class="MsoNormal"><span style="font-size:10pt;font-family:"Courier New""> MFNode [in,out] geometry [] [<span style="background:yellow">X3DParametricGeometryNode</span>]<u></u><u></u></span></p><p class="MsoNormal"><span style="font-size:10pt;font-family:"Courier New""> SFNode [in,out] metadata NULL [X3DMetadataObject]<u></u><u></u></span></p><p class="MsoNormal"><span style="font-size:10pt;font-family:"Courier New""> SFFloat [in,out] tessellationScale 1.0 (0,∞)<u></u><u></u></span></p><p class="MsoNormal"><span style="font-size:10pt;font-family:"Courier New""> SFVec3f [] bboxCenter 0 0 0 (-∞,∞)<u></u><u></u></span></p><p class="MsoNormal"><span style="font-size:10pt;font-family:"Courier New""> SFVec3f [] bboxSize -1 -1 -1 [0,∞) or −1 −1 −1<u></u><u></u></span></p><p class="MsoNormal"><span style="font-size:10pt;font-family:"Courier New"">}<u></u><u></u></span></p><p class="MsoNormal"><u></u> <u></u></p><p class="MsoNormal">This changes X3DUOM and possibly some implementations. Comments welcome.<u></u><u></u></p><p class="MsoNormal"><u></u> <u></u></p><p class="MsoNormal">We current intend to accept this change as resolved once X3DUOM is updated.<u></u><u></u></p><p class="MsoNormal"><span style="font-size:10pt;font-family:"Courier New""><u></u> <u></u></span></p><p class="MsoNormal"><span style="font-size:10pt;font-family:"Courier New"">all the best, Don<u></u><u></u></span></p><p class="MsoNormal"><span style="font-size:10pt;font-family:"Courier New"">-- <u></u><u></u></span></p><p class="MsoNormal"><span style="font-size:10pt;font-family:"Courier New"">Don Brutzman Naval Postgraduate School, Code USW/Br <a href="mailto:brutzman@nps.edu" target="_blank">brutzman@nps.edu</a><u></u><u></u></span></p><p class="MsoNormal"><span style="font-size:10pt;font-family:"Courier New"">Watkins 270, MOVES Institute, Monterey CA 93943-5000 USA +1.831.656.2149<u></u><u></u></span></p><p class="MsoNormal"><span style="font-size:10pt;font-family:"Courier New"">X3D graphics, virtual worlds, Navy robotics https://</span> <span style="font-size:10pt;font-family:"Courier New""><a href="http://faculty.nps.edu/brutzman" target="_blank">faculty.nps.edu/brutzman</a><u></u><u></u></span></p><p class="MsoNormal"><u></u> <u></u></p></div></div>_______________________________________________<br>
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