Hi, I'm about to start implementing a UTFgrid WMS output format based on the MapBox UTFGrid specification: https://github.com/mapbox/utfgrid-spec/blob/master/1.3/utfgrid.md
The output format will be as usual a bit more lax than the spec, we plan to allow non square requests too, even if the expectation is that we are going to receive mostly tiled requests. Implementation wise we are going to associate each feature to a progressive number, use this number as a grayscale color that will be used to paint the feature in question on the map, and then turn the resulting gray map into a char map according to the utfgrid spec .... which seems simple, but once one takes into account all of our rendering abilities, well, it's not going to be so much anymore ;-) In particular, it's not clear if we are going to be able to work against rendering transformations, since they make new features pop up out of thin air, but I'll see what I can do. Since output formats are pluggable, it would be possible to implement this as a community module, but I expect to only have a handful of classes (style transformers, image transcoders, feature collection decorators to add the grayscale ids as a new attribute) plus some eventual changes to streaming renderer, so I'm not sure the work is worth its own module... was more thinking of adding it directly to the gs-wms module, but would also like to hear your opinion. Cheers Andrea -- == 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 Poggio alle Viti 1187 55054 Massarosa (LU) Italy 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. -------------------------------------------------------
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