[x3d-public] loading DOM VRML Script. Cobweb enhancement?

[John Carlson]

Because I may not have the full x3d examples downloaded.   And I do want to
test to see if JSON inclusion works.

On Dec 2, 2016 3:04 PM, "Andreas Plesch" <andreasplesch at gmail.com> wrote:

> Hi John,
>
> I tried a bit to load gears.json with X3DJSONLD:
>
> https://raw.githubusercontent.com/andreasplesch/X3DJSONLD/
> master/AP_minimal_JSLD.html
>
> But even before any script parsing/loading, there is a problem with the
> ExternProtoDeclare node in gears.json. It has a url field to Rotor.x3d
> which is replaced by the json loader with Rotor.json before being handed
> off to cobweb with importDocument(). Cobweb does not know what to do with
> the Rotor.json file and gives up.
>
> Why modify the url field value ? If the scene author wants to use a .json
> encoded scene, she will put it in  the url field just like a .wrl encoded
> scene.
>
> On another note, I agree that eval() cannot be avoided if script should be
> supported. cobweb itself also uses eval() (after some setup and massaging)
> to run the x3d script.
>
> type="application/x-vrmlscript" is necessary because without it the web
> browser will try to run the script "as is" as soon as it gets appended to
> the page DOM. When cobweb gets a chance to check for the type attribute, it
> is already too late. So it cannot use the attribute to prevent it from
> running. It can only not reject it which is what it does.
>
> -Andreas
>
>
> On Thu, Dec 1, 2016 at 1:02 AM, <yottzumm at gmail.com> wrote:
>
>> It appears that Cobweb is fouled up with DOM loading of scripts, even
>> with the additional name value pair.  See gears.x3d/gears.json and load DOM
>> through importDocument.  And independent test would help.  I am not sure
>> which of my X3DCanvases gets loaded first and I am using absolute indexing,
>> so it could be the XML loaded one that is failing.  Basically, we need a
>> good way to load scripts coming in through JSON I think, and the only real
>> way I know how to do it is eval or cobweb with JSON to XML conversion and
>> VRMLscript.  If Cobweb could use the VRMLscript from JSON or DOM, that
>> might be ideal.
>>
>>
>>
>> This is with cobweb 2.4.
>>
>>
>>
>> John
>>
>>
>>
>> Sent from Mail <https://go.microsoft.com/fwlink/?LinkId=550986> for
>> Windows 10
>>
>>
>>
>> *From: *yottzumm at gmail.com
>> *Sent: *Thursday, December 1, 2016 12:32 AM
>> *To: *Andreas Plesch <andreasplesch at gmail.com>; Don Brutzman
>> <brutzman at nps.edu>; Roy Walmsley <roy.walmsley at ntlworld.com>
>> *Subject: *FW: loading X3D DOM. Latest Cobweb techniques?
>>
>>
>>
>> Would it be possible to get a name/value of
>>
>>
>>
>> "@type" : "application/x-vrmlscript"
>>
>>
>>
>> On the Script tag in X3D JSON?  I will do some testing here first to see
>> if it will help.
>>
>>
>>
>> John
>>
>>
>>
>> *From: *yottzumm at gmail.com
>> *Sent: *Thursday, December 1, 2016 12:24 AM
>> *To: *Andreas Plesch <andreasplesch at gmail.com>
>> *Subject: *RE: loading X3D DOM. Latest Cobweb techniques?
>>
>>
>>
>> One thing I noticed once I got both DOM and XML views loaded, was that I
>> think the DOM VRML script tag was disabled, but the XML one worked.  Was
>> there some attribute to add to the Script tag to make it work?  Can I add
>> it in both XML and DOM?  Thanks, John  I will start email search.
>>
>>
>>
>>
>>
>>
>>
>
>
>
> --
> Andreas Plesch
> 39 Barbara Rd.
> Waltham, MA 02453
>
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