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<div>Leonard, </div>
<div>This sounds somehow as I would have expected. </div>
<div>To be honest: I am on vacation. Thus I am talking about SrrTrains only. Do not talk about Mixed Reality Group Call at the moment.</div>
<div>Two weeks ago we were at a VR Cafe. Unfortunately my weight is above the specified 120 kg. So I could not try the Omni walking System personally. But wouldn't it be nice to build custom scenery and models for your own VR Café. Using X3D of course?</div>
<div><br>
</div>
<div>Kr</div>
<div>Christoph</div>
<div><br>
</div>
<div><br>
</div>
<div><br>
</div>
<div id="composer_signature">
<div style="font-size:88%;color:#364f67" dir="auto">Von meinem Samsung Gerät gesendet.</div>
</div>
<br>
<br>
-------- Ursprüngliche Nachricht --------<br>
Von: Leonard Daly <Leonard.Daly@realism.com> <br>
Datum: 07.08.18 03:59 (GMT+01:00) <br>
An: x3d-public@web3d.org <br>
Betreff: Re: [x3d-public] good example for ECMAScripting and Protos? <br>
<br>
<div class="moz-cite-prefix">Christoph,<br>
<br>
I presume you are talking about an embedded HMD in a larger system such as aircraft operations. That would certainly not be a browser (though concept prototypes might be). This is a highly focused system where flexibility of a development environment (e.g.,
web browser) is generally avoided. In those types of systems it is all built for extreme performance, so interpreted code (JavaScript) and data objects (declarative languages) are almost never used in the display and render loop operations. That is all compiled
code. It would build upon concepts developed for more flexible environments but not use them.<br>
<br>
Leonard Daly<br>
<br>
<br>
<br>
</div>
<blockquote type="cite">
<div>Thank you. I hope I will have a chance to get in contact with X3DOM, X_ITE, ...... some day. My only concern is about performance i.e. resource consumption and about necessity of a W3C Browser for HMD.</div>
<div><br>
</div>
<div>Any advise?</div>
<div><br>
</div>
<div><br>
</div>
<div><br>
</div>
<div id="composer_signature">
<div dir="auto" style="font-size:88%; color:#364f67">Von meinem Samsung Gerät gesendet.</div>
</div>
<br>
<br>
-------- Ursprüngliche Nachricht --------<br>
Von: Leonard Daly <a class="moz-txt-link-rfc2396E" href="mailto:Leonard.Daly@realism.com">
<Leonard.Daly@realism.com></a> <br>
Datum: 06.08.18 22:27 (GMT+01:00) <br>
An: Valentin Christoph <a class="moz-txt-link-rfc2396E" href="mailto:Christoph.Valentin@kapsch.net">
<Christoph.Valentin@kapsch.net></a>, John Carlson <a class="moz-txt-link-rfc2396E" href="mailto:yottzumm@gmail.com">
<yottzumm@gmail.com></a> <br>
Cc: Andreas Plesch <a class="moz-txt-link-rfc2396E" href="mailto:andreasplesch@gmail.com">
<andreasplesch@gmail.com></a>, X3D-Public <a class="moz-txt-link-rfc2396E" href="mailto:x3d-public@web3d.org">
<x3d-public@web3d.org></a> <br>
Betreff: Re: AW: [x3d-public] good example for ECMAScripting and Protos? <br>
<br>
<div>
<div class="moz-cite-prefix">In X3DOM (I don't know enough about X_ITE to comment with authority), it is possible to write JS code that handles new nodes. The code would be loaded at run-time and handle parsing the processing the new nodes. It is necessary
to correctly connect them up with the rendering and other parts of the X3DOM system.
<br>
<br>
X3D Scripting is HTML/DOM scripting + X3D API calls for event and field handling. There are certain things that are easier to do in DOM scripting (e.g., connect HTML events to X3D actions and vice-versa). Note that JavaScript is not on top of HTML. The DOM
is the API to the parsed HTML and JavaScript can access the DOM. It is possible to have HTML without JavaScript and JavaScript without HTML.<br>
<br>
There may be cases where you will want a complete X3D environment without a browser, but those cases will become fewer in number and more restrictive in applicability. The world is moving to mobile devices and there is a general disinterest in loading specialized
apps unless there is a real solid and obvious advantage to the user. Soon the requirement to run outside the browser may be seen as a disadvantage, especially if it prevents full integration and use within the browser environment.<br>
<br>
Leonard Daly<br>
<br>
<br>
<br>
</div>
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<div>Hi John.</div>
<div><br>
</div>
<div>Cannot help here. I am just a user of X3D and I thought to stress the fact THAT extensibility is crucial. Cannot tell you HOW to achieve it. Sorry.</div>
<div><br>
</div>
<div>All the best</div>
<div><br>
</div>
<div><br>
</div>
<div><br>
</div>
<div id="composer_signature">
<div dir="auto" style="font-size:88%; color:#364f67">Von meinem Samsung Gerät gesendet.</div>
</div>
<br>
<br>
-------- Ursprüngliche Nachricht --------<br>
Von: John Carlson <a class="moz-txt-link-rfc2396E" href="mailto:yottzumm@gmail.com">
<yottzumm@gmail.com></a> <br>
Datum: 06.08.18 21:18 (GMT+01:00) <br>
An: Valentin Christoph <a class="moz-txt-link-rfc2396E" href="mailto:Christoph.Valentin@kapsch.net">
<Christoph.Valentin@kapsch.net></a>, Leonard Daly <a class="moz-txt-link-rfc2396E" href="mailto:Leonard.Daly@realism.com">
<Leonard.Daly@realism.com></a> <br>
Cc: Andreas Plesch <a class="moz-txt-link-rfc2396E" href="mailto:andreasplesch@gmail.com">
<andreasplesch@gmail.com></a>, X3D-Public <a class="moz-txt-link-rfc2396E" href="mailto:x3d-public@web3d.org">
<x3d-public@web3d.org></a> <br>
Betreff: RE: [x3d-public] good example for ECMAScripting and Protos? <br>
<br>
<div>
<div class="WordSection1">
<p class="MsoNormal">Here’s the one case I was successful at writing an interpreter:
<a href="http://dsmforum.org/events/DSVL01/carlson.pdf" target="_BLANK">http://dsmforum.org/events/DSVL01/carlson.pdf</a> I got help from Michael Turner, Jeffrey Allen and Frank Guerra. No scoping whatsoever.</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">John</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">Sent from <a href="https://go.microsoft.com/fwlink/?LinkId=550986" target="_BLANK">
Mail</a> for Windows 10</p>
<p class="MsoNormal"> </p>
<div style="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>Monday, August 6, 2018 3:13 PM<br>
<b>To: </b><a href="mailto:Christoph.Valentin@kapsch.net">Valentin Christoph</a>;
<a href="mailto:Leonard.Daly@realism.com">Leonard Daly</a><br>
<b>Cc: </b><a href="mailto:andreasplesch@gmail.com">Andreas Plesch</a>; <a href="mailto:x3d-public@web3d.org">
X3D-Public</a><br>
<b>Subject: </b>RE: [x3d-public] good example for ECMAScripting and Protos?</p>
</div>
<p class="MsoNormal"> </p>
<p class="MsoNormal">The only problem with this is that some X3D programmers are not capable of writing a good interpreter or compiler (only me perhaps). It’s another step up from regular programming (I have tried several times, and am only successful when
someone else helps). I don’t see why we can’t use the regular browser JavaScript for x3dscript, except for scoping issues, perhaps. Am I being obtuse/stupid?</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">John</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">Sent from <a href="https://go.microsoft.com/fwlink/?LinkId=550986" target="_BLANK">
Mail</a> for Windows 10</p>
<p class="MsoNormal"> </p>
<div style="border:none; border-top:solid #E1E1E1 1.0pt; padding:3.0pt 0in 0in 0in">
<p class="MsoNormal"><b>From: </b><a href="mailto:Christoph.Valentin@kapsch.net">Valentin Christoph</a><br>
<b>Sent: </b>Monday, August 6, 2018 3:04 PM<br>
<b>To: </b><a href="mailto:yottzumm@gmail.com">John Carlson</a>; <a href="mailto:Leonard.Daly@realism.com">
Leonard Daly</a><br>
<b>Cc: </b><a href="mailto:andreasplesch@gmail.com">Andreas Plesch</a>; <a href="mailto:x3d-public@web3d.org">
X3D-Public</a><br>
<b>Subject: </b>AW: [x3d-public] good example for ECMAScripting and Protos?</p>
</div>
<p class="MsoNormal"> </p>
<p class="MsoNormal">I am in favor of keeping X3D Scripting and X3D prototypes even in X3DOM and similar. </p>
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<p class="MsoNormal"> </p>
</div>
<div>
<p class="MsoNormal">Reason: need some place "on top" of X3D. At least for experimental extensibility.</p>
</div>
<div>
<p class="MsoNormal"> </p>
</div>
<div>
<p class="MsoNormal">X3dscript "on top" of X3D ("on top" of Javascript "on top" of html)</p>
</div>
<div>
<p class="MsoNormal"> </p>
</div>
<div>
<p class="MsoNormal">The part within parentheses needs to remain optional IMHO</p>
</div>
<div>
<p class="MsoNormal"> </p>
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<p class="MsoNormal"> </p>
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<p class="MsoNormal"> </p>
</div>
<div id="composer_signature">
<div>
<p class="MsoNormal"><span style="font-size:9.5pt; color:#364F67">Von meinem Samsung Gerät gesendet.</span></p>
</div>
</div>
<p class="MsoNormal" style="margin-bottom:12.0pt"><br>
<br>
-------- Ursprüngliche Nachricht --------<br>
Von: John Carlson <a class="moz-txt-link-rfc2396E" href="mailto:yottzumm@gmail.com">
<yottzumm@gmail.com></a> <br>
Datum: 06.08.18 20:08 (GMT+01:00) <br>
An: Leonard Daly <a class="moz-txt-link-rfc2396E" href="mailto:Leonard.Daly@realism.com">
<Leonard.Daly@realism.com></a> <br>
Cc: Andreas Plesch <a class="moz-txt-link-rfc2396E" href="mailto:andreasplesch@gmail.com">
<andreasplesch@gmail.com></a>, X3D-Public <a class="moz-txt-link-rfc2396E" href="mailto:x3d-public@web3d.org">
<x3d-public@web3d.org></a> <br>
Betreff: Re: [x3d-public] good example for ECMAScripting and Protos? </p>
<div>
<div>
<div>
<p class="MsoNormal">I agree there should be a solution that everyone can use. One potential solution is to sandbox, which has worked for systems like VMware, virtual box etc. I don’t know the status of systems like this for JavaScript, but it may be worth
investigating such systems, and creating a recommendation for those implementing VRML on the web. Another potential solution is moving more things into declarative syntax. I favor this, but I don’t want to end up with something like CSAML (left to the reader
to investigate). A third solution get rid of scripting from X3D entirely and use DOM scripting. This perhaps is the best solution, but might leave some people out of the VRML world because they are too afraid of DOM scripting.</p>
</div>
</div>
<div>
<p class="MsoNormal"> </p>
<div>
<div>
<p class="MsoNormal">On Mon, Aug 6, 2018 at 1:56 PM Leonard Daly <<a href="mailto:Leonard.Daly@realism.com">Leonard.Daly@realism.com</a>> wrote:</p>
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<p class="MsoNormal" style="margin-left:4.8pt">[Removed X3DOM mailing list because the message applies to X3D in general and not X3DOM.]<br>
<br>
There has been several mentions over that last many months about using eval to process code in the browser. Sometimes the code is JSON, other times the code is JavaScript (sometimes HTML5 JavaScript, others X3D ECMAScript).
<br>
<br>
I do not recall seeing any discussion of potential security issues when 'eval'ing code.
<br>
<br>
If the string is JSON, then the proper way to convert the JSON string to internal data structure is with JSON.parse (e.g., see
<a href="https://www.w3schools.com/js/js_json_parse.asp" target="_BLANK">https://www.w3schools.com/js/js_json_parse.asp</a>). This built-in method ensures that no code is executed and only data structures are created.<br>
<br>
eval() is a dangerous function. <br>
<br>
<a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/eval#Do_not_ever_use_eval" target="_BLANK">https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/eval#Do_not_ever_use_eval</a>!<br>
<br>
Any library that provides the ability to execute uncontrolled code is really asking for trouble and probably will not be allowed in any corporate environment. Any X3D solution that requires the use of eval() for user code needs to be re-thought to develop a
solution without that requirement -- either explicitly stated or required because no other solution to the requirements is possible.</p>
</div>
</div>
<div>
<div>
<p class="MsoNormal" style="margin-right:0in; margin-bottom:12.0pt; margin-left:4.8pt">
<br>
<br>
<br>
Leonard Daly<br>
<br>
<br>
</p>
</div>
<blockquote style="margin-top:5.0pt; margin-bottom:5.0pt">
<div>
<div>
<p class="MsoNormal" style="margin-left:40.8pt">I am interested in the fields, specifically getting scengraph values out of SFNodes which are in fields. I can call the script node mooluckpooluck when I insert it into DOM, let’s just decide on something and
add it to both X_ITE and X3DOM. X_ITE already uses eval. Are we going to make that magically disappear, if so, how? Let’s hop skip jump to it if it has to go through W3C.</p>
</div>
</div>
<div>
<p class="MsoNormal" style="margin-left:40.8pt"> </p>
</div>
<div>
<p class="MsoNormal" style="margin-left:40.8pt">John</p>
</div>
<div>
<p class="MsoNormal" style="margin-left:40.8pt"> </p>
<div>
<div>
<p class="MsoNormal" style="margin-left:40.8pt">On Mon, Aug 6, 2018 at 1:32 AM John Carlson <<a href="mailto:yottzumm@gmail.com">yottzumm@gmail.com</a>> wrote:</p>
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<div>
<p class="MsoNormal" style="margin-left:45.6pt">I don’t care if the script tag is called mooluckpooluck or if there is a conflict. I’m working in the JSON environment, so the rules are somewhat different. What I am concerned about is getting my arrays converted
to arrays and not strings.</p>
</div>
</div>
<div>
<p class="MsoNormal" style="margin-left:45.6pt"> </p>
<div>
<div>
<p class="MsoNormal" style="margin-left:45.6pt">On Mon, Aug 6, 2018 at 1:19 AM 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-top:5.0pt; margin-right:0in; margin-bottom:5.0pt">
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<div>
<p class="MsoNormal" style="margin-left:.7in">Leonard, I agree my approach may not work in all environments.</p>
</div>
</div>
<div>
<p class="MsoNormal" style="margin-left:.7in"> </p>
</div>
<div>
<p class="MsoNormal" style="margin-left:.7in">Determining a valid or invalid mime type is extremely difficult if done semantically, but extremely easy if done syntactically. My guess is that many of the X3D tags are semantically invalid, unless someone has
added them to Apache. I do not know the status of this. I have to add mine types to my server for every new extension I add. It is not a that big of a deal.</p>
</div>
<div>
<p class="MsoNormal" style="margin-left:.7in"> </p>
</div>
<div>
<p class="MsoNormal" style="margin-left:.7in">One may not need a script tag around X3D script to execute X3D script. One may use eval in a script tag. One may make script inconsequential by making the scripts only functions, and move the functions to a string
which is evaled. Essentially you are parsing twice.</p>
</div>
<div>
<p class="MsoNormal" style="margin-left:.7in"> </p>
</div>
<div>
<p class="MsoNormal" style="margin-left:.7in">If we want script fields handled by X3DOM, we will have to find someway to bring them into X3DOM. X_ITE has shown the way. We can take other approaches than X3DOM, like straight DOM. I am beginning to think
this is preferable, but using DEF to find node which aren’t in the scenegraph has kind of been, wtf?</p>
</div>
<div>
<p class="MsoNormal" style="margin-left:.7in"> </p>
</div>
<div>
<p class="MsoNormal" style="margin-left:.7in">The question has become “Are DEFed SFNodes valid scenegraph objects if they are in fields?” This may show a failing of X3DOM, which may need to be corrected. I can probably find the scengraph object using USE,
but I really want to use DEF. Can someone show me how to do it in the HTML5 environment?</p>
</div>
<div>
<p class="MsoNormal" style="margin-left:.7in"> </p>
</div>
<div>
<p class="MsoNormal" style="margin-left:.7in">John</p>
</div>
<div>
<div>
<div>
<p class="MsoNormal" style="margin-left:.7in">On Mon, Aug 6, 2018 at 12:24 AM Leonard Daly <<a href="mailto:Leonard.Daly@realism.com">Leonard.Daly@realism.com</a>> wrote:</p>
</div>
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<div>
<p class="MsoNormal" style="margin-left:55.2pt">I am replying to an early message in this thread, but I hope to capture comments from all messages in the thread. My comments only apply to the web browser (HTML5) environment.<br>
<br>
First, any Script tag (in any case) will be handled by the web browser, and the web browser will parse content before anything else. If you really need to independently parse some tags, you will need to "read" it into a JavaScript variable and handle it that
way. If it's in the page file, it will be parsed.<br>
<br>
There was a suggestion to use "text/x3dscript" or some other string. The W3C has something to say about this at
<a href="https://www.w3.org/TR/html5/scripting-1.html#the-script-element" target="_BLANK">
https://www.w3.org/TR/html5/scripting-1.html#the-script-element</a>. The value of the type attribute must either be</p>
<p class="MsoNormal" style="margin-left:91.2pt; text-indent:-.25in"><span style="">1.<span style="">
</span></span>omitted </p>
<p class="MsoNormal" style="margin-left:91.2pt; text-indent:-.25in"><span style="">2.<span style="">
</span></span>JavaScript MIME type </p>
<p class="MsoNormal" style="margin-left:91.2pt; text-indent:-.25in"><span style="">3.<span style="">
</span></span>"module" </p>
<p class="MsoNormal" style="margin-left:91.2pt; text-indent:-.25in"><span style="">4.<span style="">
</span></span>any other valid mime type </p>
<p>So the use of an invalid MIME type is not technically valid HTML. This may cause a problem with some browsers or validators; or present future problems if that string is ever defined to have a particular meaning.</p>
<p>X3DOM does not have X3D scripting. If you need scripting to correctly process an X3DOM environment; then you need to do it in HTML5 Javascript. X3DOM does not process the Script tag, that is done by HTML5. While X3DOM parser could recognize that tag, it
does not; hence, none of the X3DOM methods are available to handle interactions on a Script node (a Script tag parsed into DOM).</p>
<p>The X3D Script / HTML5 Script tag name conflict is a long-standing and known issue. To my knowledge no work has been done to break the conflict.
</p>
<p>Leonard Daly</p>
<p> </p>
<p> </p>
<p class="MsoNormal" style="margin-right:0in; margin-bottom:12.0pt; margin-left:55.2pt">
</p>
</div>
</div>
<div>
<blockquote style="margin-top:5.0pt; margin-bottom:5.0pt">
<div>
<p class="MsoNormal" style="margin-left:91.2pt">Here’s my current code for clearing the ECMAScript out of a X3D file so that it doesn’t show on the screen:</p>
<p class="MsoNormal" style="margin-left:91.2pt"> </p>
<p class="MsoNormal" style="margin-left:91.2pt"> </p>
<p class="MsoNormal" style="margin-left:91.2pt"> $(selector+" Script").contents().filter(function () {</p>
<p class="MsoNormal" style="margin-left:91.2pt"> return this.nodeType === 3 || this.nodeType === 4;</p>
<p class="MsoNormal" style="margin-left:91.2pt"> }).remove();</p>
<p class="MsoNormal" style="margin-left:91.2pt"> </p>
<p class="MsoNormal" style="margin-left:91.2pt">This retains the fields. I may change my code to work with fields instead of parsing out the fields into properties (but directOutput is nice). This would mean that X3DOM has to route to and from the script
fields (is this possible?).</p>
<p class="MsoNormal" style="margin-left:91.2pt"> </p>
<p class="MsoNormal" style="margin-left:91.2pt">John</p>
<p class="MsoNormal" style="margin-left:91.2pt">Sent from <a href="https://go.microsoft.com/fwlink/?LinkId=550986" target="_BLANK">
Mail</a> for Windows 10</p>
<p class="MsoNormal" style="margin-left:91.2pt"> </p>
<div style="border:none; border-top:solid
#E1E1E1 1.0pt; padding:3.0pt 0in
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<p class="MsoNormal" style="margin-left:91.2pt"><b>From: </b><a href="mailto:yottzumm@gmail.com">John Carlson</a><br>
<b>Sent: </b>Saturday, August 4, 2018 4:56 AM<br>
<b>To: </b><a href="mailto:vmarchetti@kshell.com">vmarchetti@kshell.com</a>; <a href="mailto:x3d-public@web3d.org">
X3D-Public</a>; <a href="mailto:x3dom-users@lists.sourceforge.net">x3dom mlist</a>;
<a href="mailto:andreasplesch@gmail.com">Andreas Plesch</a><br>
<b>Subject: </b>RE: [x3d-public] good example for ECMAScripting and Protos?</p>
</div>
<p class="MsoNormal" style="margin-left:91.2pt"> </p>
<p class="MsoNormal" style="margin-left:91.2pt">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.</p>
<p class="MsoNormal" style="margin-left:91.2pt"> </p>
<p class="MsoNormal" style="margin-left:91.2pt">Thus I cannot take a reasonable length in the script. One would have to parse the string.</p>
<p class="MsoNormal" style="margin-left:91.2pt"><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.</p>
<p class="MsoNormal" style="margin-left:91.2pt"> </p>
<p class="MsoNormal" style="margin-left:91.2pt">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.</p>
<p class="MsoNormal" style="margin-left:91.2pt"> </p>
<p class="MsoNormal" style="margin-left:91.2pt">We just need a script tag that has fields, but doesn’t execute its CDATA section. I am pretty sure</p>
<p class="MsoNormal" style="margin-left:91.2pt"> </p>
<p class="MsoNormal" style="margin-left:91.2pt">How is V4.0 handling this?</p>
<p class="MsoNormal" style="margin-left:91.2pt"> </p>
<p class="MsoNormal" style="margin-left:91.2pt">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.</p>
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<p class="MsoNormal" style="margin-left:91.2pt">Thanks for the great example, Vince,</p>
<p class="MsoNormal" style="margin-left:91.2pt"> </p>
<p class="MsoNormal" style="margin-left:91.2pt">Should I adapt my code to deal with this failing in X3DOM, or should we change X3DOM?</p>
<p class="MsoNormal" style="margin-left:91.2pt"> </p>
<p class="MsoNormal" style="margin-left:91.2pt">John</p>
<p class="MsoNormal" style="margin-left:91.2pt"> </p>
<p class="MsoNormal" style="margin-left:91.2pt">Sent from <a href="https://go.microsoft.com/fwlink/?LinkId=550986" target="_BLANK">
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<p class="MsoNormal" style="margin-left:91.2pt"> </p>
<div style="border:none; border-top:solid
#E1E1E1 1.0pt; padding:3.0pt 0in
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<p class="MsoNormal" style="margin-left:91.2pt"><b>From: </b><a href="mailto:vmarchetti@kshell.com">vmarchetti@kshell.com</a><br>
<b>Sent: </b>Wednesday, August 1, 2018 9:04 PM<br>
<b>To: </b><a href="mailto:yottzumm@gmail.com">John Carlson</a>; <a href="mailto:x3d-public@web3d.org">
X3D-Public</a><br>
<b>Subject: </b>Re: [x3d-public] good example for ECMAScripting and Protos?</p>
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<p class="MsoNormal" style="margin-left:91.2pt"> </p>
<p class="MsoNormal" style="margin-left:91.2pt">See </p>
<p class="MsoNormal" style="margin-left:91.2pt"><a href="http://www.kshell.com/pages/pointcloudvisualization/SphereDirectedPointSet.x3d" target="_BLANK">http://www.kshell.com/pages/pointcloudvisualization/SphereDirectedPointSet.x3d</a></p>
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<p class="MsoNormal" style="margin-left:91.2pt">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.</p>
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<p class="MsoNormal" style="margin-left:91.2pt">Example used is just points randomly distributed on sphere with directs pointed radially outward.</p>
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<p class="MsoNormal" style="margin-left:91.2pt">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</p>
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<p class="MsoNormal" style="margin-left:91.2pt">visualizing fluid flow or electromagnetic field</p>
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<p class="MsoNormal" style="margin-left:127.2pt">On Jul 31, 2018, at 10:30 PM, John Carlson
<a href="mailto:yottzumm@gmail.com"><yottzumm@gmail.com></a> wrote:</p>
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<p class="MsoNormal" style="margin-left:127.2pt">Is there a good example of ECMAScripting in X3D that I can use to test my X3D JSON ECMAScript preprocessor? Preferably with Protos<span class="m-1560826583463856358m3705278146108278236m8095493740017175402m-7056022351321710558apple-converted-space"> </span></p>
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<p class="MsoNormal" style="margin-left:127.2pt">Thanks!</p>
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<p class="MsoNormal" style="margin-left:127.2pt">John</p>
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<p> </p>
<div>
<p class="MsoNormal" style="margin-left:55.2pt">-- <br>
<b><span style="font-size:13.5pt; color:#333366">Leonard Daly</span></b><span style="color:#333366"><br>
3D Systems & Cloud Consultant<br>
LA ACM SIGGRAPH Past Chair<br>
President, Daly Realism - <i>Creating the Future</i> </span></p>
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<p class="MsoNormal" style="margin-left:4.8pt">-- <br>
<b><span style="font-size:13.5pt; color:#333366">Leonard Daly</span></b><span style="color:#333366"><br>
3D Systems & Cloud Consultant<br>
LA ACM SIGGRAPH Past Chair<br>
President, Daly Realism - <i>Creating the Future</i> </span></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><span style="font-size:7.0pt"><br>
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<div class="moz-signature">-- <br>
<font class="tahoma,arial,helvetica san serif" color="#333366"><font size="+1"><b>Leonard Daly</b></font><br>
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LA ACM SIGGRAPH Past Chair<br>
President, Daly Realism - <i>Creating the Future</i> </font></div>
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<div class="moz-signature">-- <br>
<font class="tahoma,arial,helvetica san serif" color="#333366"><font size="+1"><b>Leonard Daly</b></font><br>
3D Systems & Cloud Consultant<br>
LA ACM SIGGRAPH Past Chair<br>
President, Daly Realism - <i>Creating the Future</i> </font></div>
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