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

[Michalis Kamburelis]

I don't have any topics to discuss in regards to X3D geospatial component:)
I trust here everyone else. In CGE/view3dscene we don't (yet!) implement
geospatial nodes.

Regards,
Michalis

W dniu czw., 17.03.2022 o 17:35 GPU Group <gpugroup at gmail.com> napisał(a):

> freewrl geospatial has:
> - 5600 lines of code
>
> https://sourceforge.net/p/freewrl/git/ci/develop/tree/freex3d/src/lib/scenegraph/Component_Geospatial.c
> - web mercator map projection
> http://dug9.users.sourceforge.net/web3d/tests/geo/web_mercator.x3d
> -X3DGeoPlanet (for multiplanet scenes)
> http://dug9.users.sourceforge.net/web3d/tests/geo/World/earthriseGP.x3d
> - X3DGeoConvert (to convert between geographic coordinate systems, usually
> chain 2 together with geographic coords as intermediate to go between
> mapping planes)
> http://dug9.users.sourceforge.net/web3d/tests/geo/geoConvert.x3d
>
> Doug
>
> On Thu, Mar 17, 2022 at 9:03 AM Andreas Plesch <andreasplesch at gmail.com>
> wrote:
>
>> 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
>>
>
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