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--></style></head><body lang=EN-US link=blue vlink="#954F72" style='word-wrap:break-word'><div class=WordSection1><p class=MsoNormal><o:p> </o:p></p><pre style='margin-left:24.0pt;text-indent:-.25in;mso-list:l0 level1 lfo1'><![if !supportLists]><code><span style='font-family:Wingdings;color:#15141A'><span style='mso-list:Ignore'>Ø<span style='font:7.0pt "Times New Roman"'> </span></span></span></code><![endif]><code><span style='color:#15141A'> </span></code><span class=token><span style='color:#15141A'><use x="5" y="5" href="#myCircle" fill="url('#myGradient')" /></span></span><code><span style='color:#15141A'><o:p></o:p></span></code></pre><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>OK, but why the use uses href and url names when the objective is the same, just to reference the defs id values? </p><p class=MsoNormal>Can you change the values in the defs? </p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Thanks,</p><p class=MsoNormal>Joe</p><p class=MsoNormal><o:p> </o:p></p><pre><span class=token><span style='color:#15141A'><svg viewBox="0 0 10 10" xmlns="http://www.w3.org/2000/svg"></span></span><code><span style='color:#15141A'><o:p></o:p></span></code></pre><pre><code><span style='color:#15141A'> </span></code><span class=token><span style='color:#15141A'><!-- Some graphical objects to use --></span></span><code><span style='color:#15141A'><o:p></o:p></span></code></pre><pre><code><span style='color:#15141A'> </span></code><span class=token><span style='color:#15141A'><defs></span></span><code><span style='color:#15141A'><o:p></o:p></span></code></pre><pre><code><span style='color:#15141A'> </span></code><span class=token><span style='color:#15141A'><circle id="myCircle" cx="0" cy="0" r="5" /></span></span><code><span style='color:#15141A'><o:p></o:p></span></code></pre><pre><code><span style='color:#15141A'><o:p> </o:p></span></code></pre><pre><code><span style='color:#15141A'> </span></code><span class=token><span style='color:#15141A'><linearGradient id="myGradient" gradientTransform="rotate(90)"></span></span><code><span style='color:#15141A'><o:p></o:p></span></code></pre><pre><code><span style='color:#15141A'> </span></code><span class=token><span style='color:#15141A'><stop offset="20%" stop-color="gold" /></span></span><code><span style='color:#15141A'><o:p></o:p></span></code></pre><pre><code><span style='color:#15141A'> </span></code><span class=token><span style='color:#15141A'><stop offset="90%" stop-color="red" /></span></span><code><span style='color:#15141A'><o:p></o:p></span></code></pre><pre><code><span style='color:#15141A'> </span></code><span class=token><span style='color:#15141A'></linearGradient></span></span><code><span style='color:#15141A'><o:p></o:p></span></code></pre><pre><code><span style='color:#15141A'> </span></code><span class=token><span style='color:#15141A'></defs></span></span><code><span style='color:#15141A'><o:p></o:p></span></code></pre><pre><code><span style='color:#15141A'><o:p> </o:p></span></code></pre><pre><code><span style='color:#15141A'> </span></code><span class=token><span style='color:#15141A'><!-- using my graphical objects --></span></span><code><span style='color:#15141A'><o:p></o:p></span></code></pre><pre><code><span style='color:#15141A'> </span></code><span class=token><span style='color:#15141A'><use x="5" y="5" href="#myCircle" fill="url('#myGradient')" /></span></span><code><span style='color:#15141A'><o:p></o:p></span></code></pre><pre><span class=token><span style='color:#15141A'></svg></span></span><span style='font-size:10.5pt'><o:p></o:p></span></pre><p class=MsoNormal><o:p> </o:p></p><div style='mso-element:para-border-div;border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal style='border:none;padding:0in'><b>From: </b><a href="mailto:andreasplesch@gmail.com">Andreas Plesch</a><br><b>Sent: </b>Friday, March 11, 2022 7:32 AM<br><b>To: </b><a href="mailto:brutzman@nps.edu">Brutzman, Donald (Don) (CIV)</a><br><b>Cc: </b><a href="mailto:joedwil@earthlink.net">Joseph D Williams</a>; <a href="mailto:x3d-public@web3d.org">X3D Graphics public mailing list</a>; <a href="mailto:flotynski@kti.ue.poznan.pl">Jakub Flotyński</a><br><b>Subject: </b>Re: [x3d-public] X3DParticleEmitter node inherit fromX3DChildNode(ratherthan X3DNode)</p></div><p class=MsoNormal><o:p> </o:p></p><div><div><p class=MsoNormal>On Thu, Mar 10, 2022 at 9:41 PM Brutzman, Donald (Don) (CIV) <<a href="mailto:brutzman@nps.edu">brutzman@nps.edu</a>> wrote:</p></div><div><blockquote style='border:none;border-left:solid #CCCCCC 1.0pt;padding:0in 0in 0in 6.0pt;margin-left:4.8pt;margin-top:5.0pt;margin-right:0in;margin-bottom:5.0pt'><div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:4.8pt'>Sorry I thought we were talking about Metadata examples, not DEF/USE id/idref identifier/copy-by-reference kinds of reuse.</p></div></div></blockquote><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>glTF and collada have "extras" for unstructured metadata. glTF now also has structured metadata:</p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal><a href="https://www.khronos.org/blog/pervasive-asset-metadata-in-3dcommerce">https://www.khronos.org/blog/pervasive-asset-metadata-in-3dcommerce</a></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>based on the XMP standard.</p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal><a href="https://github.com/KhronosGroup/glTF/tree/main/extensions/2.0/Khronos/KHR_xmp_json_ld">https://github.com/KhronosGroup/glTF/tree/main/extensions/2.0/Khronos/KHR_xmp_json_ld</a></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>has the details.</p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>To avoid further confusion, let me emphasize this is completely unrelated to library node functionality.</p></div><div><p class=MsoNormal><o:p> </o:p></p></div></div></div><p class=MsoNormal>Hope this helps, Andreas</p><p class=MsoNormal><o:p> </o:p></p></div></body></html>