Hi, I guess there are different answers, depending on what the goal is. The way I see it, there are 3D objects that typically live in their own Euklidian coordinate space (typically not an issue unless they are many km wide), and there is a transformation that places them in SOME joint coordinate space. The transformation is not a big deal unless you are covering really huge distances (like earth/moon) but exactly those things do happen in GIS-related apps. So this is where my idea of transformations in doubles comes from. The other is the question of who places the 3D objects in that target coordinate system and how do we get that data. I see three options: -- It happens at the server: XML3D gets the final transformations in whatever the local coordinate frame is and dos not need to know. -- It is stored with the 3D object. Here the easiest option would be to store a coordinate reference system (e.g. WCS84) as an additional semantic attribute with the 3D object are somehow as part of a special transformation (if we go that route then I would prefer the latter). However, there likely is more GIS data associated with the object, so the question is if that should also be stored with the object. This is certainly possible (e.g. using the semantic annotations in RDF/a) but is this the best option? -- It is stored separately in a POI or something similar. This keeps the GIS data (there may be much more GIS data related to a POI, see above) separate. The POI then has whatever CRS and simply refer to the geometry via a URL, which is placed relative to the POI. At the end we have to decide. We can easily include whatever we want in XML3D. My main concern is to decide what makes most sense where. From my perspective, I like the last (POI) approach the best. It also allows us to reuse the 3D model without carrying all the GIS data around with it. I have added Stefan Lemme in CC who is the main person behind our POI suggestions that we have send around earlier. If you have not seen it yet, please have a look and let us know what you think and if it fulfills your needs. Best, Philipp Am 16.09.2013 14:34, schrieb Sami Jylkkä: > Hi Philipp and thank you for your reply. > I included also Juha to this discussion, we are working together with > the GIS implementation. We don't yet have MiWi working. > > Work is in early design phase and we are gathering basic information > what should be met in final implementation. In this phase our > understanding is that it would be beneficial if XML3D objects has > georeference information with alignment information, so that objects > could be placed in correct location and in right direction. xml3d model > each point could be specified as geolocation point, but this approach > might be overkill. > > Perhaps easier way to proceed would be that in example xml3d model which > presents house, would contain geolocation information based on its lower > points(house foundation). Also alignment is important information. With > this information model should be possible to be placed correctly in GIS. > Do you think that at least this information could be included to xml3d > model? > > We are also interested to include POI objects to GIS demo, so if you > have ongoing development activities also in that area, we'd be delighted > to hear more about that. > > Best regards, > Sami > > On Mon, Sep 16, 2013 at 10:53 AM, Philipp Slusallek > <Philipp.Slusallek at dfki.de <mailto:Philipp.Slusallek at dfki.de>> wrote: > > Hi, > > Sorry for the late response. > > Am 13.09.2013 10:14, schrieb Sami Jylkkä: > > It would be really nice to get GIS code which you have done so > that we'd > > be able to get familiar with it. You have good looking demos! > > We are happy to provide what we can. Its something that we are > interested in ourselves but where the student working on it has left. > > I have also contacted Prof. Zipf from the University of Heidelberg and > we will have a call tomorrow. Maybe, he would like to contribute a bit > as well. We certainly share the same goals. Obviously, he has no > funding, so I am not sure what he can do. > > > I would like to ask also your plans to add GeoSpatial support to XML3D > > or is the support already there? > > I am not sure what we need to add here. We see XML3D as a "delivery > format" and not so much as a storage format (for GIS or other data). > Thus, as long as we can map GIS data to something that we can display, > we should be fine. Associated data (such as a reference to the > coordinate system used, can easily be embedded as semantic references or > such. > > We are also working on advanced POI specs, which should be useful to > place things in the world. > > What might make sense is to support high-resolution (at least based on > doubles) transformations between coordinate spaces, just so we loose > less accuracy over wide distances. > > Is there anything else that you are missing? I would love to hear about > them, so we can think about suitable extensions. > > > Best, > > Philipp > > > Thanks, > > Sami > > > > > > On Thu, Sep 12, 2013 at 12:57 PM, Philipp Slusallek > > <Philipp.Slusallek at dfki.de <mailto:Philipp.Slusallek at dfki.de> > <mailto:Philipp.Slusallek at dfki.de > <mailto:Philipp.Slusallek at dfki.de>>> wrote: > > > > Great! Thanks, > > > > Philipp > > > > Am 12.09.2013 11:45, schrieb Jarkko Vatjus-Anttila: > > > Hello Philipp and Jürgen, > > > > > > We would be glad to see your commitment to the GIS topic and > > compare it > > > to the information and implementation we have at the moment. > > > > > > Also, I'd also like to make a statement that since > Cyberlightning is > > > developing GIS at the moment, our resource Sami Jylkkä would > be the > > > primary contact person to these discussions. Sami is added > in this > > email > > > CC as well, and I have been requesting to add him to MiWi > mailing list > > > as well. Sami is the primary resource related to GIS at our side > > and can > > > act as the primary contact point as needed. > > > > > > - Jarkko > > > > > > > > > On Wed, Sep 11, 2013 at 11:05 PM, Philipp Slusallek > > > <Philipp.Slusallek at dfki.de > <mailto:Philipp.Slusallek at dfki.de> <mailto:Philipp.Slusallek at dfki.de > <mailto:Philipp.Slusallek at dfki.de>> > > <mailto:Philipp.Slusallek at dfki.de > <mailto:Philipp.Slusallek at dfki.de> > > <mailto:Philipp.Slusallek at dfki.de > <mailto:Philipp.Slusallek at dfki.de>>>> wrote: > > > > > > Hi Jürgen, > > > > > > Could you please make our GIS code available for our > partners > > in the > > > FI-WARE (MiWi project)? Also, maybe you could share some > of the > > > SocialSensor visualizations with the team? > > > > > > This is pretty close to some ideas we were discussing > also in > > the MiWi > > > project. Feel free to drop by for discussing the details. > > > > > > @MiWi: I suggest that someone takes over the GIS > > responsibility, at > > > least as a contact point for Jürgen? > > > > > > > > > Thanks, > > > > > > Philipp > > > -- > > > > > > > > > ------------------------------------------------------------------------- > > > Deutsches Forschungszentrum für Künstliche Intelligenz > (DFKI) GmbH > > > Trippstadter Strasse 122, D-67663 Kaiserslautern > > > > > > Geschäftsführung: > > > Prof. Dr. Dr. h.c. mult. Wolfgang Wahlster (Vorsitzender) > > > Dr. Walter Olthoff > > > Vorsitzender des Aufsichtsrats: > > > Prof. Dr. h.c. Hans A. Aukes > > > > > > Sitz der Gesellschaft: Kaiserslautern (HRB 2313) > > > USt-Id.Nr.: DE 148646973, Steuernummer: 19/673/0060/3 > > > > > > --------------------------------------------------------------------------- > > > > > > _______________________________________________ > > > Fiware-miwi mailing list > > > Fiware-miwi at lists.fi-ware.eu > <mailto:Fiware-miwi at lists.fi-ware.eu> > > <mailto:Fiware-miwi at lists.fi-ware.eu > <mailto:Fiware-miwi at lists.fi-ware.eu>> > > <mailto:Fiware-miwi at lists.fi-ware.eu > <mailto:Fiware-miwi at lists.fi-ware.eu> > > <mailto:Fiware-miwi at lists.fi-ware.eu > <mailto:Fiware-miwi at lists.fi-ware.eu>>> > > > https://lists.fi-ware.eu/listinfo/fiware-miwi > > > > > > > > > > > > > > > -- > > > Jarkko Vatjus-Anttila > > > VP, Technology > > > Cyberlightning Ltd. > > > > > > mobile. +358 405245142 <tel:%2B358%20405245142> > <tel:%2B358%20405245142> > > > email. jarkko at cyberlightning.com > <mailto:jarkko at cyberlightning.com> > > <mailto:jarkko at cyberlightning.com > <mailto:jarkko at cyberlightning.com>> > <mailto:jarkko at cyberlightning.com <mailto:jarkko at cyberlightning.com> > > <mailto:jarkko at cyberlightning.com > <mailto:jarkko at cyberlightning.com>>> > > > > > > Enrich Your Presentations! New CyberSlide 2.0 released on > February > > 27th. > > > Get your free evaluation version and buy it now! > www.cybersli.de <http://www.cybersli.de> > > <http://www.cybersli.de> > > > <http://www.cybersli.de/> > > > > > > www.cyberlightning.com <http://www.cyberlightning.com> > <http://www.cyberlightning.com> > > <http://www.cyberlightning.com/> > > > > > > -- > > > > > ------------------------------------------------------------------------- > > Deutsches Forschungszentrum für Künstliche Intelligenz (DFKI) GmbH > > Trippstadter Strasse 122, D-67663 Kaiserslautern > > > > Geschäftsführung: > > Prof. Dr. Dr. h.c. mult. Wolfgang Wahlster (Vorsitzender) > > Dr. Walter Olthoff > > Vorsitzender des Aufsichtsrats: > > Prof. Dr. h.c. Hans A. Aukes > > > > Sitz der Gesellschaft: Kaiserslautern (HRB 2313) > > USt-Id.Nr.: DE 148646973, Steuernummer: 19/673/0060/3 > > > --------------------------------------------------------------------------- > > > > > > > -- > > ------------------------------------------------------------------------- > Deutsches Forschungszentrum für Künstliche Intelligenz (DFKI) GmbH > Trippstadter Strasse 122, D-67663 Kaiserslautern > > Geschäftsführung: > Prof. Dr. Dr. h.c. mult. Wolfgang Wahlster (Vorsitzender) > Dr. Walter Olthoff > Vorsitzender des Aufsichtsrats: > Prof. Dr. h.c. Hans A. Aukes > > Sitz der Gesellschaft: Kaiserslautern (HRB 2313) > USt-Id.Nr.: DE 148646973, Steuernummer: 19/673/0060/3 > --------------------------------------------------------------------------- > > -- ------------------------------------------------------------------------- Deutsches Forschungszentrum für Künstliche Intelligenz (DFKI) GmbH Trippstadter Strasse 122, D-67663 Kaiserslautern Geschäftsführung: Prof. Dr. Dr. h.c. mult. Wolfgang Wahlster (Vorsitzender) Dr. Walter Olthoff Vorsitzender des Aufsichtsrats: Prof. Dr. h.c. Hans A. Aukes Sitz der Gesellschaft: Kaiserslautern (HRB 2313) USt-Id.Nr.: DE 148646973, Steuernummer: 19/673/0060/3 --------------------------------------------------------------------------- -------------- next part -------------- A non-text attachment was scrubbed... Name: slusallek.vcf Type: text/x-vcard Size: 441 bytes Desc: not available URL: <https://lists.fiware.org/private/fiware-miwi/attachments/20130916/16fe7bad/attachment.vcf>
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