Re: [Geoserver-users] sortByGroup in YSLD error
On Fri, Oct 26, 2018 at 10:30 AM Arnaud L. wrote: > Why are the YSLD examples gone ? It looks like they were replaced by > CSS. Did I make a bad choice with YSLD ? > Hi, I've waited some time to answer this one to allow others to chime in, but it did not happen. Full disclosure, I am the maintainer of the CSS module and dislike YAML in any form and shape, so if you're wondering about my answer being biased, well, it probably is. Up to you to decide whether to ignore it, or not :-p Let's have a look at some factual bits: - The YSLD module is supposedly maintained, but you'll find no one of the people involved with it answering questions about it on this list (at least, not recently, I did not look that far back) - The language module history shows that most of the changes have been made in the last two years have been done as a side effect of some other change - There are pull requests made against the module that are months old, and being ignored, see https://github.com/geotools/geotools/pull/2076 , although there are also some being looked at, https://github.com/geotools/geotools/pull/2137 The module did not get replaced by CSS, if anything, it tried to play the opposite game (being the replacement for CSS), but without an active maintainership, it looks like it's falling a bit on the sidelines. One could also say that the code is "done", which would be at least partially fair (not fully, as the rendering engine changes, the authors should keep up with it), however this is not addressing the lack of user support. That said, one of the nice things about open source is that anyone interested in the future of the module can become maintainer, that is: - Answer questions about it on the lists (geotools and geoserver ones) - Look at the tickets and try to solve some (no expectation of ETA about them, more like "do something when you have time", but without having years in between of course) - Review pull requests about it, help keep the module working in face of large codebase changes, assist other developers trying to figure out how the module works 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 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 --- *Con riferimento alla normativa sul trattamento dei dati personali (Reg. UE 2016/679 - Regolamento generale sulla protezione dei dati “GDPR”), si precisa che ogni circostanza inerente alla presente email (il suo contenuto, gli eventuali allegati, etc.) è un dato la cui conoscenza è riservata al/i solo/i destinatario/i indicati dallo scrivente. Se il messaggio Le è giunto per errore, è tenuta/o a cancellarlo, ogni altra operazione è illecita. Le sarei comunque grato se potesse darmene notizia. This email is intended only for the person or entity to which it is addressed and may contain information that is privileged, confidential or otherwise protected from disclosure. We remind that - as provided by European Regulation 2016/679 “GDPR” - copying, dissemination or use of this e-mail or the information herein by anyone other than the intended recipient is prohibited. If you have received this email by mistake, please notify us immediately by telephone or e-mail.* ___ Geoserver-users mailing list Please make sure you read the following two resources before posting to this list: - Earning your support instead of buying it, but Ian Turton: http://www.ianturton.com/talks/foss4g.html#/ - The GeoServer user list posting guidelines: http://geoserver.org/comm/userlist-guidelines.html If you want to request a feature or an improvement, also see this: https://github.com/geoserver/geoserver/wiki/Successfully-requesting-and-integrating-new-features-and-improvements-in-GeoServer Geoserver-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/geoserver-users
Re: [Geoserver-users] sortByGroup in YSLD error
Hi Brad, thanks for your answer Le 26/10/2018 à 10:27, br...@frogmouth.net a écrit : YSLD examples can be found here: https://docs.geoserver.org/latest/en/user/styling/ysld/cookbook/index.html Yes I have read these pages, but they seem incomplete. The x-sortBy and x-sortByGroup properties are not mentionned anywhere in this documentation. Furthermore, the "z-ordering across FeatureTypeStyle" used to have example styles in YSLD. I can't find them anymore. Best regards -- Arnaud ___ Geoserver-users mailing list Please make sure you read the following two resources before posting to this list: - Earning your support instead of buying it, but Ian Turton: http://www.ianturton.com/talks/foss4g.html#/ - The GeoServer user list posting guidelines: http://geoserver.org/comm/userlist-guidelines.html If you want to request a feature or an improvement, also see this: https://github.com/geoserver/geoserver/wiki/Successfully-requesting-and-integrating-new-features-and-improvements-in-GeoServer Geoserver-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/geoserver-users
Re: [Geoserver-users] sortByGroup in YSLD error
YSLD examples can be found here: https://docs.geoserver.org/latest/en/user/styling/ysld/cookbook/index.html I don't know the answer to your other question. Brad ___ Geoserver-users mailing list Please make sure you read the following two resources before posting to this list: - Earning your support instead of buying it, but Ian Turton: http://www.ianturton.com/talks/foss4g.html#/ - The GeoServer user list posting guidelines: http://geoserver.org/comm/userlist-guidelines.html If you want to request a feature or an improvement, also see this: https://github.com/geoserver/geoserver/wiki/Successfully-requesting-and-integrating-new-features-and-improvements-in-GeoServer Geoserver-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/geoserver-users
Re: [Geoserver-users] sortByGroup in YSLD error
Le 26/10/2018 à 09:21, Arnaud L. a écrit : What's wrong with this style ? I think I found the problem, but I don't understand it : ALL the featurestyles in the layer must have the x-sortByGroup property set. Why is it so ? That's not what I understand from the documentation. In https://docs.geoserver.org/latest/en/user/styling/sld/extensions/z-order/syntax.html#z-ordering-across-layers, it is clearly stated that the rails layer has "two FeatureTypeStyle, one with a group, the other not". PS : how come I can't find any YSLD example anymore ? The YSLD reference does not mention the vendor options like x-sortBy anymore, is this format being abandonned ? I'm still worried about that. Why are the YSLD examples gone ? It looks like they were replaced by CSS. Did I make a bad choice with YSLD ? Best regards -- Arnaud ___ Geoserver-users mailing list Please make sure you read the following two resources before posting to this list: - Earning your support instead of buying it, but Ian Turton: http://www.ianturton.com/talks/foss4g.html#/ - The GeoServer user list posting guidelines: http://geoserver.org/comm/userlist-guidelines.html If you want to request a feature or an improvement, also see this: https://github.com/geoserver/geoserver/wiki/Successfully-requesting-and-integrating-new-features-and-improvements-in-GeoServer Geoserver-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/geoserver-users
[Geoserver-users] sortByGroup in YSLD error
Hi all I have two layers that I query together via WMS, and I'd like to order features between them as in the "z-ordering across layers" example in the doc. I style the layers in YSLD. In my first style, i have a bunch of FeatureTypeStyles, and only the last one has a "x-sortBy" property. In my second style, all FeatureTypeStyles have a "x-sortBy" property and a "x-sortByGroup" property. The problem is that as soon as I add the "x-sortByGroup" property in the first layer's style, WMS rendering breaks with this stack trace : java.lang.NullPointerException at org.geotools.renderer.lite.ZGroupLayerFactory.ensureSortProperties(ZGroupLayerFactory.java:175) at org.geotools.renderer.lite.ZGroupLayerFactory.buildNewFeatureLayer(ZGroupLayerFactory.java:159) at org.geotools.renderer.lite.ZGroupLayerFactory.addToSplitLayers(ZGroupLayerFactory.java:144) at org.geotools.renderer.lite.ZGroupLayerFactory.arrangeOnZGroups(ZGroupLayerFactory.java:121) at org.geotools.renderer.lite.ZGroupLayerFactory.filter(ZGroupLayerFactory.java:85) at org.geotools.renderer.lite.StreamingRenderer.paint(StreamingRenderer.java:803) at org.geoserver.wms.map.RenderedImageMapOutputFormat.produceMap(RenderedImageMapOutputFormat.java:569) [...] (I don't know if further trace is relevant, I think the problem is in ens ensureSortProperties) What's wrong with this style ? PS : how come I can't find any YSLD example anymore ? The YSLD reference does not mention the vendor options like x-sortBy anymore, is this format being abandonned ? Thanks a lot ! Best regards -- Arnaud ___ Geoserver-users mailing list Please make sure you read the following two resources before posting to this list: - Earning your support instead of buying it, but Ian Turton: http://www.ianturton.com/talks/foss4g.html#/ - The GeoServer user list posting guidelines: http://geoserver.org/comm/userlist-guidelines.html If you want to request a feature or an improvement, also see this: https://github.com/geoserver/geoserver/wiki/Successfully-requesting-and-integrating-new-features-and-improvements-in-GeoServer Geoserver-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/geoserver-users
