[x3d-public] X3D JSON Loader now includes sample Python imperative encoding as output; Challenge for Don.

[John Carlson]

My 32 line serializer doesn't create SAI, it's a translator more like
X3dToJson.xslt.   as mentioned, I am still working on Python SAI.

John

On Nov 10, 2016 11:07 AM, "Don Brutzman" <brutzman at nps.edu> wrote:

> John this is really wonderful.  Congratulations and thanks.
>
> Really interesting how the code patterns for HelloWorld.py are so similar
> to the Java example.
>
> It will be further interesting when we continue in these further planned
> directions: JavaScript, D3.js, C++.
>
> Peeking over the peek beyond that, if we get consistent working codebases
> running (known to be correct thanks to common basis in autoderivation from
> X3D Object Model) then smart programmers will build further applications
> and even utility libraries on top!
>
> Am currently working on toStringClassicVRML() and toStringVRML97() in the
> X3D Java SAI Library.  Talk about a mix of imperative and declarative -
> whew, tricky sledding!  (btw my serializer CreateX3dSceneAccessInterfaceJava.xslt
> is 14755 lines and growing - very jealous of your 32 lines!)
>
> Your challenge is much appreciated.  Will think about it - examples from
> other libraries/languages that illustrate your thinking will be welcome.
> Perhaps the X3D Java SAI Library will help us experiment further in that
> direction too, either in code generation or library usage.
>
> Again thanks for exposing X3D via python - wow, a major step towards a new
> milestone.  Onward we go together.  8)
>
> p.s. umm, have fun with X3D Python!  8)
>
>
> On 11/8/2016 1:17 PM, yottzumm at gmail.com wrote:
>
>> Following along with Don B.’s imperative HelloWorld.java, I have created
>> an imperative encoding for python.  See repository at:
>> https://github.com/coderextreme/X3DJSONLD and webserver:
>> http://coderextreme.net/X3DJSONLD/ for examples of this encoding. An
>> example HelloWorld.py is included here, but shouldn’t run—I’m still working
>> on that code.
>>
>>
>>
>> I hope more imperative encodings will be accepted in the future,
>> including JavaScript and D3.js.
>>
>>
>>
>> The approach I took when generating the python was to generate from DOM.
>> This worked well.   The serializer is 32 lines and is found in X3DJSONLD.js
>> in the repository. I have not tested comments or scripts yet.  So far, the
>> new encoding is only an output encoding.
>>
>>
>>
>> Don, I challenge you to create a declarative Java encoding using nested
>> object arrays.  Yes, you can translate XML into Java object arrays.
>>
>>
>>
>> I see a wonderful mixture of declarative and imperative styles coming.
>>
>>
>>
>> John
>>
>
> all the best, Don
> --
> Don Brutzman  Naval Postgraduate School, Code USW/Br
> brutzman at nps.edu
> Watkins 270,  MOVES Institute, Monterey CA 93943-5000 USA
> +1.831.656.2149
> X3D graphics, virtual worlds, navy robotics http://faculty.nps.edu/brutzma
> n
>
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