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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link="#0563C1" vlink="#954F72" style='word-wrap:break-word'><div class=WordSection1><p class=MsoNormal>I rechecked the wording of <b>35.4.2 LayerSet</b> after our meeting edits, and it still seemed a bit choppy.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Here is an improvement without loss of original meaning. Review and possibly further refinement remain welcome.<o:p></o:p></p><div style='mso-element:para-border-div;border:none;border-bottom:solid windowtext 1.5pt;padding:0in 0in 1.0pt 0in'><p class=MsoNormal style='border:none;padding:0in'><o:p> </o:p></p></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>[…]<o:p></o:p></p><ol style='margin-top:0in' start=1 type=a><li class=MsoListParagraph style='margin-left:0in;mso-list:l5 level1 lfo7'>Mantis 1292, Layering component, numbering of z order of layers in LayerSet<o:p></o:p></li></ol><p class=MsoListParagraph>https://www.web3d.org/member-only/mantis/view.php?id=1292<o:p></o:p></p><p class=MsoListParagraph>https://www.web3d.org/specifications/X3Dv4Draft/ISO-IEC19775-1v4-CD1/Part01/components/layering.html#LayerSet<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Numbering schemes for layers in LayerSet now seem pretty closely aligned to HTML/CSS z order. Nicholas will take one last close look on this.<o:p></o:p></p><div style='mso-element:para-border-div;border:none;border-bottom:solid windowtext 1.5pt;padding:0in 0in 1.0pt 0in'><p class=MsoNormal style='border:none;padding:0in'><o:p> </o:p></p></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal style='margin-top:10.5pt;mso-margin-bottom-alt:auto'><b><span style='font-size:14.5pt;font-family:"Verdana",sans-serif;color:black'>35.4.2 LayerSet<o:p></o:p></span></b></p><p class=MsoNormal style='margin-left:18.75pt'><span style='font-size:8.5pt;font-family:"Courier New";color:black'>LayerSet : X3DNode { <o:p></o:p></span></p><p class=MsoNormal style='margin-left:18.75pt'><span style='font-size:8.5pt;font-family:"Courier New";color:black'> SFInt32 [in,out] activeLayer 0 [0,∞)<o:p></o:p></span></p><p class=MsoNormal style='margin-left:18.75pt'><span style='font-size:8.5pt;font-family:"Courier New";color:black'> MFNode [in,out] layers [] [X3DLayerNode]<o:p></o:p></span></p><p class=MsoNormal style='margin-left:18.75pt'><span style='font-size:8.5pt;font-family:"Courier New";color:black'> SFNode [in,out] metadata NULL [X3DMetadataObject]<o:p></o:p></span></p><p class=MsoNormal style='margin-left:18.75pt'><span style='font-size:8.5pt;font-family:"Courier New";color:black'> MFInt32 [in,out] order [0] [0,∞)<o:p></o:p></span></p><p class=MsoNormal style='margin-left:18.75pt'><span style='font-size:8.5pt;font-family:"Courier New";color:black'>}<o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:12.0pt;font-family:"Verdana",sans-serif;color:black'>The LayerSet node specifies a list of layers and a rendering order.<o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:12.0pt;font-family:"Verdana",sans-serif;color:black'>The <i>activeLayer</i> field specifies the layer in which navigation takes place.<o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:12.0pt;font-family:"Verdana",sans-serif;color:black'>The list defined by <i>layers</i> contains the constituent parts of the scene. Each layer is assigned an ordinal number depending on its position in the list. Ordinals start with the numeral <span style='background:yellow'>0</span> <s><span style='background:orange'>1</span></s> representing the first item in the list.<o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:12.0pt;font-family:"Verdana",sans-serif;color:black'>The list defined by the <span style='background:yellow'>the</span> <i>order</i> <span style='background:yellow'>field</span> specifies the order in which the layers are rendered. <span style='background:yellow'>Each</span> <s><span style='background:orange'>The</span></s> number specified corresponds to the ordinals of the layers. The <i>order</i> field may contain repetitions of the ordinals, in which case the <span style='background:yellow'>corresponding</span> layer is rendered again. If <span style='background:yellow'>the</span> <i>order</i> <span style='background:yellow'>field</span> contains numbers that are not ordinals assigned to layers, such numbers are ignored. Layers included in <span style='background:yellow'>the</span> <i>layers</i> <span style='background:yellow'>field</span> that are not listed in <span style='background:yellow'>the</span> <i>order</i> <span style='background:yellow'>field</span> are not rendered.<o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:12.0pt;font-family:"Verdana",sans-serif;color:black'>Object picking according to the <i>pickable</i> field of a Layer node occurs even if that Layer is not visible.<o:p></o:p></span></p><div style='mso-element:para-border-div;border:none;border-bottom:solid windowtext 1.5pt;padding:0in 0in 1.0pt 0in'><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;border:none;padding:0in'><span style='font-size:12.0pt;font-family:"Verdana",sans-serif;color:black'>Nodes that are not part of a layer are considered to be the first nodes in layer 0.</span><span style='font-size:8.0pt;font-family:"Verdana",sans-serif;color:black'><o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;border:none;padding:0in'><span style='font-size:12.0pt;font-family:"Verdana",sans-serif;color:black'><o:p> </o:p></span></p></div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'>all the best, Don<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'>-- <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'>Don Brutzman Naval Postgraduate School, Code USW/Br <a href="mailto:brutzman@nps.edu">brutzman@nps.edu</a><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'>Watkins 270, MOVES Institute, Monterey CA 93943-5000 USA +1.831.656.2149<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'>X3D graphics, virtual worlds, Navy robotics https://</span> <span style='font-size:10.0pt;font-family:"Courier New"'>faculty.nps.edu/brutzman<o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p></div></body></html>