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--></style></head><body lang=EN-US link=blue vlink="#954F72"><div class=WordSection1><p class=MsoNormal>Also, I do not know why the selector <span class=object-value-string-quote><span style='font-size:9.0pt;font-family:Consolas;color:#222222;background:#FFE3C7'>"</span></span><span style='font-size:9.0pt;font-family:Consolas;color:#C41A16;background:#FFE3C7'>#x3domxml [DEF='DECLDirectedPointSet_INSTANCE_FIELDcoord_cloud-points']</span><span class=object-value-string-quote><span style='font-size:9.0pt;font-family:Consolas;color:#222222;background:#FFE3C7'>" returns null</span></span></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Here it is very obviously under Scene #x3domxm (copied from Chrome)l:</p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><field accessType="initializeOnly" name="coord" type="SFNode"><Coordinate DEF="DECLDirectedPointSet_INSTANCE_FIELDcoord_cloud-points" point="0.6106 -0.2307 -0.7576 0.5971 -0.4775 0.6445 -0.4792 -0.6057 0.6352 0.726 -0.6251 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href="https://go.microsoft.com/fwlink/?LinkId=550986">Mail</a> for Windows 10</p><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:yottzumm@gmail.com">John Carlson</a><br><b>Sent: </b>Saturday, August 4, 2018 2:47 PM<br><b>To: </b><a href="mailto:andreasplesch@gmail.com">Andreas Plesch</a><br><b>Cc: </b><a href="mailto:vmarchetti@kshell.com">Vincent Marchetti</a>; <a href="mailto:x3d-public@web3d.org">X3D Graphics public mailing list</a>; <a href="mailto:x3dom-users@lists.sourceforge.net">x3dom mlist</a><br><b>Subject: </b>Re: [x3d-public] good example for ECMAScripting and Protos?</p></div><p class=MsoNormal><o:p> </o:p></p><div><div><p class=MsoNormal>I would give you instructions on how to follow along with me, but they are a bit complex. Basically you need a most recent version of X3DJSONLD, you need to put the file in a searchable place see /files in app.js or put it in src/main/data and src/main/html/index.html select options. Select or search for the file from <a href="http://localhost:3000">http://localhost:3000</a> (start server with node app.js). That will throw some errors to the web console. Select the loadScripts line error and set a breakpoint at eval(scripts.text); Rerun the file (select another file, then select below file again). Then step into the eval. Set a breakpoint in the initialize method following “ecmascript” step into the nodeUtil method and see that element is right and getFieldValue is not a function.</p></div></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>I will try some of your ideas below. getAttribute does return something. I think it’s just that X3DOM has not recognized the node because it’s inside a non-processed script field.</p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>Not really sure though.</p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>John</p></div><div><div><div><p class=MsoNormal>On Sat, Aug 4, 2018 at 1:47 PM John Carlson <<a href="mailto:yottzumm@gmail.com">yottzumm@gmail.com</a>> wrote:</p></div><blockquote style='border:none;border-left:solid #CCCCCC 1.0pt;padding:0in 0in 0in 6.0pt;margin-left:4.8pt;margin-right:0in'><div><div><p class=MsoNormal>I belive in this case, it’s the node and not the field we are trying to get the point field value from. The problem is that getFieldValue is not defined because I am pretty sure that the node wasn’t processed by X3DOM????</p></div></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>To change X3DOM, we would probably need a script tag and a way to handle the script fields. I believe these particular nodes are USEd elsewhere, so they should be active as nodes. Hmm.</p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>Probably requires more investigation on my part.</p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>In this case, the nodes are coordinate and normal nodes.</p></div><div><p class=MsoNormal><o:p> </o:p></p><div><div><p class=MsoNormal>On Sat, Aug 4, 2018 at 8:53 AM Andreas Plesch <<a href="mailto:andreasplesch@gmail.com" target="_blank">andreasplesch@gmail.com</a>> wrote:</p></div></div></div></blockquote></div></div><p class=MsoNormal style='margin-left:9.6pt'>On Sat, Aug 4, 2018 at 4:56 AM John Carlson <<a href="mailto:yottzumm@gmail.com" target="_blank">yottzumm@gmail.com</a>> wrote:<br>><br>> I have a problem with this file in X3DOM, because as far as I can tell, the SFNode fields (the node, not the field) do not have getFieldValue for point etc. as a function, for example (but one can double check me). In other words, I don’t think this node is an X3DOM node.<br><br>I think you are referring to X3DOM's dom element method getFieldValue<br>and that it does not work for SFNode type fields. For example:<br><br>shapeDomNode.getFieldValue('Appearance')<br><br>does not return anything.<br><br>I do not think this will be fixed soon.<br><br>You can try this instead<br><br>shapeDomNode._x3domNode._cf.appearance<br><br>with something like<br><br>dom._x3domNode._cf[field.toLowerCase]<br><br>which gives you an x3domNode object.<br><br>><br>> Thus I cannot take a reasonable length in the script. One would have to parse the string.<br>><br>><br>> That’s as clear as I can get. I think this might be because x3dom does not process scripts correctly. We would need a script tag handler, and a field handler inside that.<br>><br>><br>><br>> Can you help Andreas? I’ve created a script tag before, but that code is lost. It might be in my GitHub repository somewhere, not sure.<br>><br>><br>><br>> We just need a script tag that has fields, but doesn’t execute its CDATA section. I am pretty sure<br><br>If you add a type='text/x3dscript' (or anything) attribute, the<br>browser will not try to execute the script.<br><br>><br>> How is V4.0 handling this?<br>><br>><br>><br>> Alternatively, I can change my nodeUtil code to look at the type and do the right thing converting a string to the correct type. Suggestions are welcome.<br>><br>><br>><br>> Thanks for the great example, Vince,<br>><br>><br>><br>> Should I adapt my code to deal with this failing in X3DOM, or should we change X3DOM?<br><br>What needs to be changed in x3dom ? The getFieldValue method ?<br><br>-Andreas<br>><br>><br>><br>> John<br>><br>><br>><br>> Sent from Mail for Windows 10<br>><br>><br>><br>> From: <a href="mailto:vmarchetti@kshell.com" target="_blank">vmarchetti@kshell.com</a><br>> Sent: Wednesday, August 1, 2018 9:04 PM<br>> To: John Carlson; X3D-Public<br>> Subject: Re: [x3d-public] good example for ECMAScripting and Protos?<br>><br>><br>><br>> See<br>><br>> <a href="http://www.kshell.com/pages/pointcloudvisualization/SphereDirectedPointSet.x3d" target="_blank">http://www.kshell.com/pages/pointcloudvisualization/SphereDirectedPointSet.x3d</a><br>><br>><br>><br>> It is a X3D file with with a Prototype + ecmascript definition of a point cloud, with a vector attached to each point of the cloud.<br>><br>> Example used is just points randomly distributed on sphere with directs pointed radially outward.<br>><br>><br>><br>> Potential uses would be to implement the scanning design pattern at <a href="http://x3dgraphics.com/examples/X3dForAdvancedModeling/Scanning/X3dMeshDesignPatternIndex.html" target="_blank">http://x3dgraphics.com/examples/X3dForAdvancedModeling/Scanning/X3dMeshDesignPatternIndex.html</a> , or<br>><br>> visualizing fluid flow or electromagnetic field<br>><br>><br>><br>> On Jul 31, 2018, at 10:30 PM, John Carlson <<a href="mailto:yottzumm@gmail.com" target="_blank">yottzumm@gmail.com</a>> wrote:<br>><br>><br>><br>> Is there a good example of ECMAScripting in X3D that I can use to test my X3D JSON ECMAScript preprocessor? Preferably with Protos<br>><br>><br>><br>><br>><br>> Thanks!<br>><br>><br>><br>> John<br>><br>><br>><br>> _______________________________________________<br>> x3d-public mailing list<br>> <a href="mailto:x3d-public@web3d.org" target="_blank">x3d-public@web3d.org</a><br>> <a href="http://web3d.org/mailman/listinfo/x3d-public_web3d.org" target="_blank">http://web3d.org/mailman/listinfo/x3d-public_web3d.org</a><br>><br>><br>><br>><br><br><br><br>-- <br>Andreas Plesch<br>Waltham, MA 02453</p><p class=MsoNormal><o:p> </o:p></p></div></body></html>