[x3d-public] X3DPSAIL x3d.py package updated and deployed to x3d.py, adding initial support for JSON export

[John Carlson]

What I did was test to see if the key was present before parsing.

John

On Mon, Dec 6, 2021 at 10:35 AM Brutzman, Donald (Don) (CIV) <
brutzman at nps.edu> wrote:

> See the code in x3d.py for details on use of Null and []
>
>
>
> Testing that a list is not empty before iterating avoids errors like object
> is not iterable
>
>
>
>
>
> 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 https://
> faculty.nps.edu/brutzman
>
>
>
> *From:* John Carlson <yottzumm at gmail.com>
> *Sent:* Sunday, December 5, 2021 10:41 PM
> *To:* Brutzman, Donald (Don) (CIV) <brutzman at nps.edu>; Vince Marchetti <
> vmarchetti at kshell.com>
> *Cc:* X3D Public Mailing List (x3d-public at web3d.org) <x3d-public at web3d.org
> >
> *Subject:* Re: X3DPSAIL x3d.py package updated and deployed to x3d.py,
> adding initial support for JSON export
>
>
>
> NPS WARNING: *external sender* verify before acting.
>
>
>
>
>
> On 12/6/21 00:29, John Carlson wrote:
>
>
>
> On 12/6/21 00:19, John Carlson wrote:
>
> Don, I will probably begin working on JSON export testing after I take the
> JSON import example for a short spin.  It's good to get a code download.
>
> Note that SFVec3f should put a tuple in the structure when parsing
> JSON...normal JSON does not include tuples, so there needs to be a type
> conversion.
>
> That is, centerOfRotation and position in Viewpoint should be tuples, not
> lists as JSON provides.
>
> Fixed as far as I am concerned right now.  I will try to remove my tuple
> soon.
>
> Tested removing tuple() without any problems.
>
> I sent a previous message about HelloWorld.py and how the fields might be
> converted to lists in the the constructor call.
>
> That has been done, AFAICT.
>
> SFVec3f field values converted to lists from tuples, to clarify.  Good
> work!
>
>
>
> John, please collect your comments and examples regarding JSON export
> flaws.  The build.examples.log.txt file is a good place to start.  Am
> returning to work this week, finishing up everything not yet done this year…
>
> I need to talk to you about making MF fields and nodes iterable.  Output
> fails in both JSON and XML output.
>
> See traceback here:
>
>
>
> Traceback (most recent call last):
>  File "/c/x3d-code/www.web3d.org/x3d/content/examples/x3dinput.py", line
> 141, in <module>
>    print(scene.JSON())
>  File "/c/x3d-code/www.web3d.org/x3d/content/examples/x3d.py", line
> 12790, in JSON
>    result += str(self.head.JSON(indentLevel=indentLevel+1, syntax=syntax))
>  File "/c/x3d-code/www.web3d.org/x3d/content/examples/x3d.py", line
> 10792, in JSON
>    for each in self.children:
> TypeError: 'JSON_MFNode' object is not iterable
>
>
>
> I'm hoping we can spend some collaboration time working on these issues.
> Otherwise, I will try to engage my python programmer to discuss options.
>
> Pretty much all my code has been posted except for removing tuple().
>
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