From: Andrea A. <and...@ge...> - 2016-12-15 10:22:41
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Hi, I'm afraid I don't know why OGC decided not to support measured geometries in GML. If one looks at the OpenLS schemas they come with their own special "point" type that binds a single location along with explicit extra attributes such as a percentage, and then creates structures on top of it, like a route being a sequence of these points. Of course this makes the expression of measured lines quite a bit more verbose than normal. GeoJSON instead just says that the first tree elements of a coordinate should be interpreted as x,y,z, and any extra one is allowed but "interpretation and meaning of additional elements is beyond the scope of this specification". (this is particular means that if one has 2d measured lines, they will have to be expressed as x,y,0,m). As said in other places, it is certainly possible to add better support for measured geometries in GeoServer, it's simply a matter of finding someone willing to perform such investment: https://github.com/geoserver/geoserver/wiki/Successfully-requesting-and-integrating-new-features-and-improvements-in-GeoServer Cheers Andrea On Thu, Dec 15, 2016 at 10:49 AM, sulu <and...@vo...> wrote: > Hi. > > I want to hijack this thread since it covers exactly the same problem we > have with GS. > GS handles our OGD-Download feature. > Some of our data have the Format MultiLineString. > The data in question are multilinestring but with measures attached. > The reason is linear referencing. > Common use case for this type of data are e.g. roads with distance-markers. > The "measures" are an integral part of the data and must be removed by > downgrading the dato in pure 2d. > Actually it makes me wonder why those data-types of data aren't supported > since linear referencing is widely used. > > Thanks > Andy > > > > -- > View this message in context: http://osgeo-org.1560.x6. > nabble.com/MEASURED-shapefile-problem-tp4984863p5299938.html > Sent from the GeoServer - User mailing list archive at Nabble.com. > > ------------------------------------------------------------ > ------------------ > Check out the vibrant tech community on one of the world's most > engaging tech sites, SlashDot.org! http://sdm.link/slashdot > _______________________________________________ > Geoserver-users mailing list > Geo...@li... > https://lists.sourceforge.net/lists/listinfo/geoserver-users > -- == GeoServer Professional Services from the experts! Visit http://goo.gl/it488V for more information. == Ing. Andrea Aime @geowolf Technical Lead GeoSolutions S.A.S. Via di Montramito 3/A 55054 Massarosa (LU) phone: +39 0584 962313 fax: +39 0584 1660272 mob: +39 339 8844549 http://www.geo-solutions.it http://twitter.com/geosolutions_it *AVVERTENZE AI SENSI DEL D.Lgs. 196/2003* Le informazioni contenute in questo messaggio di posta elettronica e/o nel/i file/s allegato/i sono da considerarsi strettamente riservate. Il loro utilizzo è consentito esclusivamente al destinatario del messaggio, per le finalità indicate nel messaggio stesso. Qualora riceviate questo messaggio senza esserne il destinatario, Vi preghiamo cortesemente di darcene notizia via e-mail e di procedere alla distruzione del messaggio stesso, cancellandolo dal Vostro sistema. Conservare il messaggio stesso, divulgarlo anche in parte, distribuirlo ad altri soggetti, copiarlo, od utilizzarlo per finalità diverse, costituisce comportamento contrario ai principi dettati dal D.Lgs. 196/2003. The information in this message and/or attachments, is intended solely for the attention and use of the named addressee(s) and may be confidential or proprietary in nature or covered by the provisions of privacy act (Legislative Decree June, 30 2003, no.196 - Italy's New Data Protection Code).Any use not in accord with its purpose, any disclosure, reproduction, copying, distribution, or either dissemination, either whole or partial, is strictly forbidden except previous formal approval of the named addressee(s). If you are not the intended recipient, please contact immediately the sender by telephone, fax or e-mail and delete the information in this message that has been received in error. The sender does not give any warranty or accept liability as the content, accuracy or completeness of sent messages and accepts no responsibility for changes made after they were sent or for other risks which arise as a result of e-mail transmission, viruses, etc. ------------------------------------------------------- |