[x3d-public] Fwd: Next, in Python news...

John Carlson yottzumm at gmail.com
Wed Aug 25 18:34:17 PDT 2021 

Joe,  you totally missed the point.   I was referring to the python code.

John

On Wed, Aug 25, 2021 at 6:03 PM Joseph D Williams <joedwil at earthlink.net>
wrote:

>
> https://www.web3d.org/x3d/content/examples/HumanoidAnimation/Prototypes/AllenStandShootRifleM24Index.html
>
>
>
> When I look at this I see maybe a browser-specific problem, that the
> player is drawing geometries twice.
>
> The first is drawn from the Humanoid skeleton user code and the second set
> is drawn from the (my word) spurious joints, segments and sites fields, the
> lists of skeleton items.
>
> Of course the funny thing is that the second set, of course, doesn’t get
> animated, so the problem is easy to see. This is positive proof that the
> style of coding using USE in those lists of nodes is bad coding. If these
> are needed, then all that is necessary is a simple list of the DEF names,
> omitting the USE.
>
> Otherwise we need that (my word) silly rule that Hey players, don’t draw
> the USE - DEFs in the joints, segments, sites fields!!!!
>
> Mush simpler and more in the old spirit to simply MFsptring of quoted
> either  DEFs used in the skeleton, or, even more enlightend, the  element
> names.
>
>
>
> Thanks and Best,
>
> Joe
>
>
>
> *From: *John Carlson <yottzumm at gmail.com>
> *Sent: *Wednesday, August 25, 2021 1:18 PM
> *To: *Brutzman, Donald (Don) (CIV) <brutzman at nps.edu>; Joseph D Williams
> <joedwil at earthlink.net>
> *Cc: *X3D Graphics public mailing list <x3d-public at web3d.org>
> *Subject: *Re: [x3d-public] Fwd: Next, in Python news...
>
>
>
> Downloaded:
>
> AllenStandShootRifleM24.py
>
> From:
>
>
> https://www.web3d.org/x3d/content/examples/HumanoidAnimation/Prototypes/AllenStandShootRifleM24Index.html
>
> Results:
>
> coderextreme at coderextreme-Kubuntu20:~/Downloads$ python3
> AllenStandShootRifleM24.py
> Traceback (most recent call last):
>   File "AllenStandShootRifleM24.py", line 21, in <module>
>     from x3d import *
> AttributeError: module 'x3d' has no attribute 'SFBool'
>
>
>
> coderextreme at coderextreme-Kubuntu20:~/Downloads$ source
> ~/X3DJSONLD/src/main/python/venv/bin/activate
>
>
>
> (venv) coderextreme at coderextreme-Kubuntu20:~/Downloads$ python3
> AllenStandShootRifleM24.py Traceback (most recent call last):
>   File "AllenStandShootRifleM24.py", line 21, in <module>
>     from x3d import *
> AttributeError: module 'x3d' has no attribute 'SFBool'
>
>
>
> (venv) coderextreme at coderextreme-Kubuntu20:~/Downloads$ export
> PYTHONPATH=~/X3DJSONLD/src/main/python/net/x3djsonld/data/
>
>
>
> (venv) coderextreme at coderextreme-Kubuntu20:~/Downloads$ python3
> AllenStandShootRifleM24.py x3d.py package loaded, have fun with X3D
> Graphics!
> Traceback (most recent call last):
>   File "AllenStandShootRifleM24.py", line 44, in <module>
>     ProtoDeclare(name='LOA1_ShootAnimation',
>   File
> "/home/coderextreme/X3DJSONLD/src/main/python/net/x3djsonld/data/x3d.py",
> line 10239, in __init__
>     self.ProtoBody = ProtoBody
>   File
> "/home/coderextreme/X3DJSONLD/src/main/python/net/x3djsonld/data/x3d.py",
> line 10282, in ProtoBody
>     if not ProtoBody is None and not
> isinstance(ProtoBody,(ProtoBody,ProtoInstance)):
> TypeError: isinstance() arg 2 must be a type or tuple of types
>
>
>
> Look at:
>
>
>
> File
> "/home/coderextreme/X3DJSONLD/src/main/python/net/x3djsonld/data/x3d.py",
> line 10282, in ProtoBody
>     if not ProtoBody is None and not
> isinstance(ProtoBody,(ProtoBody,ProtoInstance)):
>
>
>
> It seems obvious to me that there's an issue with this line, but I don't
> really know Python too well!
>
> Please bring up a virtual environment or otherwise provide better
> instructions for patching the issue.
>
>
>
> John
>
> On 8/25/21 1:33 AM, John Carlson wrote:
>
> This is a repeat.  I only saw ProtoBody setter isinstance error when
> running python generated from the X3D archives from sourceforge.
>
> If you like, I can download a python file from the website?  Okay!
>
> On 8/24/21 10:41 PM, Brutzman, Donald (Don) (CIV) wrote:
>
> John, we have a lot of simple prototypes and prototypes with embedded
> Script nodes in the archives that have all tested OK.
>
>
>
> If your example is that Rubiks’s cube with nested prototypes, that is
> harder.  We believe the spec is OK but that feature is only occasionally
> demonstrated as working.  Any model with nested prototypes (ProtoDeclare
> within ProtoDeclare) can be easily refactored by putting all of the
> ProtoDeclare blocks first.  Similarly it makes sense to test individual
> ProtoInstance nodes without feeding them nested ProtoInstance fields.
>
>
>
> Looking at existing examples is also good because they have passed through
> validation.  Step by step.
>
>
>
>    1.
>    https://www.web3d.org/x3d/content/examples/X3dResources.html#Examples
>
>
>
> Once again sorry I can’t pursue “deep dive” excursions at this time.  Am
> working on (a) X3D architecture Mantis editorial issues, (b) DIS protocol
> implementation open-dis7-java, upgraded DIS support in Xj3D, and just
> tonight got X3D-Edit building despite issues with a very old laptop.  Step
>  by step.
>
>
>
> *From:* x3d-public <x3d-public-bounces at web3d.org>
> <x3d-public-bounces at web3d.org> *On Behalf Of *John Carlson
> *Sent:* Tuesday, August 24, 2021 7:48 PM
> *To:* Joseph D Williams <joedwil at earthlink.net> <joedwil at earthlink.net>
> *Cc:* X3D Graphics public mailing list <x3d-public at web3d.org>
> <x3d-public at web3d.org>
> *Subject:* Re: [x3d-public] Fwd: Next, in Python news...
>
>
>
> Yes, you need to ‘’’pip install x3d’’’
>
> before running the provided script in previous message.   See link
> previously posted by Joe.
>
>
>
> Thanks for confirmation of received message.
>
>
>
> The header is the top of the file.   If you don’t want to run my code,
> convert your own proto xml to python using X3dToPython.xslt.   I don’t have
> a JSON converter for this test.
>
>
>
> The main purpose is to get proper implementation of Protos in pure python.
>   I’m guessing it may be a wider problem with x3d.py, because when I
> patched Protos in my version, there were further issues.   So simply
> patching Protos won’t fix all the issues.   A full roundtrip XML -> python
> -> XML needs to be done for the archive.
>
>
>
> I’ve freed up some time to work on python, and I plan to start work on a
> test suite soon.   It would be good to get past my initial issues with the
> package.   I can reattempt to modify the x3d package generator, but that
> doesn’t mean my patches will be available when I am done.    It still needs
> to go through official channels.
>
>
>
> If you’re fed up with stylesheets, I can offer a solution, but it’s not as
> elegant or pythonic and uses Java.   As far as I can tell, XSLT is the
> declarative transformer of choice for XML.
>
>
>
> The main thing I think needs to be done is handle cases where parameters
> and classes have the same case sensitive name.
>
>
>
> If people want to contribute to x3d.py project, now’s your chance.   I’m
> fairly sure the python binding needs to be standardized.
>
>
>
> I know pretty much everyone has been covidized.
>
>
>
> After spinning up python, I’ll return to C++ if there’s enough code
> separated from the standard.
>
>
>
> John
>
>
>
> On Tue, Aug 24, 2021 at 8:55 PM Joseph D Williams <joedwil at earthlink.net>
> wrote:
>
>
>
> # Now available: developmental python x3d.py package on PyPi for import.
>
> #   This approach greatly simplifies Python X3D deployment and use.
>
> #   https://pypi.org/project/x3d
> <https://nam10.safelinks.protection.outlook.com/?url=https%3A%2F%2Fpypi.org%2Fproject%2Fx3d&data=04%7C01%7Cbrutzman%40nps.edu%7C72693df0fce44ec3ba3408d96772eba5%7C6d936231a51740ea9199f7578963378e%7C0%7C0%7C637654565985912019%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=Sw68kSJJKNZaBcGFk4Up3toP5CkFxSgiUQASR49Cfos%3D&reserved=0>
>
>
>
> The text got here as attachment
>
> Joe
>
>
>
>
>
> *From: *John Carlson <yottzumm at gmail.com>
> *Sent: *Tuesday, August 24, 2021 3:00 PM
> *To: *Don Brutzman <brutzman at nps.edu>; X3D Graphics public mailing list
> <x3d-public at web3d.org>
> *Subject: *[x3d-public] Fwd: Next, in Python news...
>
>
>
> Resend of non-working python code.   No rush,    I don’t want anyone to be
> surprised.  I do want someone to confirm receipt of email.   I’m guessing
> things are going to spam?
>
>
>
>
>
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