[x3d-public] X3D geospatial meeting planning, resolving issues X3D4/X3D4.1

[Andreas Plesch]

Hello Don,

Thank you for sharing the issues list.

I am interested in:

865 X3D19775-1 (Abstract)V4.1normalconfirmedminor 25.3.7
GeoPositionInterpolator - Add onGreatCircle field
940 X3D19775-1 (Abstract)V4.1normalconfirmedmajor 25.2.3 Specifying a
spatial reference frame - Addition of new web Mercator system

and would include those in X3D V.4 . I thought they would be but they
seem deferred which may be unavoidable.

I can log in to my web3d member page but I do not have a way to access
the mantis pages. Could Anita help with that ?

I think all other X3DV4 issues are properly resolved.

I think Mike was interested in the new GeoOriginTransform node which I
do not see listed. We have provided a full description in McCann et
al., 2015.

Similarly, there has been agreement to add a new globalGeoOrigin field
to GeoTransform

http://web3d.org/mailman/private/geospatial_web3d.org/2015-July/000036.html

The field would be useful if GeoOrigin is not deprecated further. It
provides for a saner way to use GeoOrigin taking advantage of the fact
that typically in a scene only a single GeoOrigin makes sense.

GeoOrigin unfortunately is still useful due to limited numerical
precision in floating point arithmetic, at least for Ecmascript
numbers.

Hope this helps, Andreas


On Thu, Mar 17, 2022 at 10:08 AM Brutzman, Donald (Don) (CIV)
<brutzman at nps.edu> wrote:
>
> As mentioned in recent X3D meeting minutes, Dick and I are finalizing the X3D4 Architecture specification and hoping to assemble geospatial practitioners to confirm the following:
>
>
>
> We understand current and planned levels of X3D geospatial implementation maturity,
> Triage on existing mantis issues: resolvable in X3D4, confirm and defer to X3D4.1, or no fix needed.
>
>
>
> Attached please find CSV file listing 15 relevant Mantis issues.  None are particularly complex or difficult, some are incidental.  All are available online at
>
> Web3D Mantis View Issues
> https://www.web3d.org/member-only/mantis/view_all_bug_page.php
>
>
>
> Please ask Anita if you need membership access.  I can provide details on request for any issue.
>
>
>
> Mike is unavailable on Friday mornings.  Please advise regarding availability Monday-Thursday on 28-31 March or 4-7 April, regular meeting time 0800-0900 or 09-1000 pacific.
>
>
>
> We are very close.  It will be good to achieve shared understanding.  This also helps our group achieve a stable playing field in anticipation of further work with Open Geospatial Consortium (OGC).
>
>
>
> If unable to attend, please advise regarding your technical opinion on any geospatial issue.
>
>
>
> References:
>
> X3D4 Architecture, annex 25 Geospatial component
> https://www.web3d.org/specifications/X3Dv4Draft/ISO-IEC19775-1v4-CD1/Part01/components/geospatial.html
> X3D Example Archives: Basic, Geospatial
> https://www.web3d.org/x3d/content/examples/Basic/Geospatial
>
>
>
> It has been a long and fruitful journey, we are steps away from a new plateau.  Thanks for your support of X3D4!   8)
>
>
>
> 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
>
>



--
Andreas Plesch
Waltham, MA 02453