[x3d-public] [X3D-Public] Prototype

[Daniel Vera]

John,

Apologies for reviving an old thread, but in my opinion not having 
capability similar to VRML protos is indeed a loss of functionality;

Explanation: I am an engineer (industrial production), not a developer; 
VRML PROTO/EXTERNPROTO has allowed our group to build rich 3D based 
engineering application using VRML/javascript code only (i.e. without 
the need to go in the depth of coding with low level libraries etc.).

(https://www.youtube.com/user/FDSvideosFDS/videos)

Looking into Andreas links (Box.js code in particular), it seems the way 
to go is to define additional X3DOM nodes, but that requires 
understanding X3DOM code, which not every class of users wants or has 
time to do; In my opinion, X3DOM should match the capability provided by 
X3D in defining complex modelling class/object using X3D/javascript 
code/syntax only.

That said, I am open to additional suggestion, discussion or links to 
more information!

Regards, Daniel






> John Richardson <mailto:richards at spawar.navy.mil>
> 07 October 2014 19:53
> Hello,
>
> Is this a loss of usability from the development perspective?
>
> John F. Richardson
>
> -----Original Message-----
> From: X3D-Public [mailto:x3d-public-bounces at web3d.org] On Behalf Of 
> Andreas Plesch
> Sent: Tuesday, October 07, 2014 7:03 AM
> To: Daniel Vera
> Cc: x3d-public at web3d.org
> Subject: Re: [X3D-Public] Prototype
>
> Hi Daniel,
>
> there is the vague hint on http://www.x3dom.org/?page_id=158 to use 
> DOM/HTML techniques, and there is a discussion on the x3dom developer 
> mailing list suggesting to use the component system:
>
> http://sourceforge.net/p/x3dom/mailman/message/30219569/
>
> https://x3dom.readthedocs.org/en/latest/components/index.html#extending-x3dom
>
> This talks about to how to define your own nodes, essentially in 
> parallel to how x3dom.js defines nodes. Unfortunately, the example is 
> a bit too basic and one would need to look at x3dom source to 
> understand better how to do that. See for example 
> https://github.com/x3dom/x3dom/blob/master/src/nodes/Geometry3D/Box.js .
>
> Another basic idea is to create and manipulate nodes procedurally, not 
> declaratively. The scene API helps with that:
> http://doc.x3dom.org/author/index.html. So one could image a 
> javascript function which inserts a series of nodes into the DOM based 
> on provided parameters. This approach may be more accessible and there 
> some basic examples on http://examples.x3dom.org/simpleExamples.html 
> which provide pointers in that direction.
>
> Hope this helps,
>
> Andreas
>
>
>
>
>
> --
> Andreas Plesch
> 39 Barbara Rd.
> Waltham, MA 02453
>
>
> _______________________________________________
> X3D-Public mailing list
> X3D-Public at web3d.org
> http://web3d.org/mailman/listinfo/x3d-public_web3d.org
> Andreas Plesch <mailto:andreasplesch at gmail.com>
> 07 October 2014 15:03
> Hi Daniel,
>
> there is the vague hint on http://www.x3dom.org/?page_id=158 to use 
> DOM/HTML techniques, and there is a discussion on the x3dom developer 
> mailing list suggesting to use the component system:
>
> http://sourceforge.net/p/x3dom/mailman/message/30219569/
>
> https://x3dom.readthedocs.org/en/latest/components/index.html#extending-x3dom
>
> This talks about to how to define your own nodes, essentially in 
> parallel to how x3dom.js defines nodes. Unfortunately, the example is 
> a bit too basic and one would need to look at x3dom source to 
> understand better how to do that. See for example 
> https://github.com/x3dom/x3dom/blob/master/src/nodes/Geometry3D/Box.js .
>
> Another basic idea is to create and manipulate nodes procedurally, not 
> declaratively. The scene API helps with that: 
> http://doc.x3dom.org/author/index.html. So one could image a 
> javascript function which inserts a series of nodes into the DOM based 
> on provided parameters. This approach may be more accessible and there 
> some basic examples on http://examples.x3dom.org/simpleExamples.html 
> which provide pointers in that direction.
>
> Hope this helps,
>
> Andreas
>
>
>
>
>
>
> -- 
> Andreas Plesch
> 39 Barbara Rd.
> Waltham, MA 02453
> Daniel Vera <mailto:d.a.vera at warwick.ac.uk>
> 07 October 2014 08:42
> Hi Andreas,
> Do you have anything specific in mind? Is there anything that can be 
> used currently to achieve functionalities similar to PROTO/EXTERNPROTO 
> in X3DOM?
>
> Best regards,
>
> --
>
> Daniel Vera
>
>
>
>
> Andreas Plesch <mailto:andreasplesch at gmail.com>
> 05 October 2014 22:03
>
> Hi Joe,
>
> x3dom does not support proto nodes, see http://www.x3dom.org/?page_id=158
>
> You could ask on the x3dom developer mailing list about plans but my 
> impression is that this not a priority since there may be other ways 
> to achieve similar functionality.
>
> Andreas
>
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