Hi, Workaround or convenience as OGC writes in the WFS 2.0 standard:
11.3.6 Inheritance rules for srsName values For convenience in constructing feature collection instances, the value of the srsName attribute on the gml:Envelope which is the value of the wfs:boundedBy property of a response feature collection shall be inherited by all directly expressed geometries in all properties of the members of the collection, unless overruled by the presence of a local srsName. Thus it is not necessary for a geometry to carry a srsName attribute, if it uses the same coordinate reference system as given on the wfs:boundedBy property of the envelope. Inheritance of the coordinate reference system continues to any depth of nesting, but if overruled by a local srsName declaration, then the new coordinate reference system is inherited by all its children in turn -Jukka- -----Alkuperäinen viesti----- Lähettäjä: edgar.sol...@web.de [mailto:edgar.sol...@web.de] Lähetetty: 23. marraskuuta 2017 12:27 Vastaanottaja: jump-pilot-devel@lists.sourceforge.net Aihe: Re: [JPP-Devel] SRID support in JML Jukka, this looks more like a workaround, misusing a bounding box definition's saved srs although it of course should match the data's. the clean gml way would probably be (as you mentioned) to srs tag every feature as the standard expects, but that of course would blow up the dataset exponentially unnecessarily. ..ede On 23.11.2017 11:05, Rahkonen Jukka (MML) wrote: > Or we could add a CRS element into GML Input Template section and boundedBy > like in GML2 into the data section: > > <?xml version='1.0' encoding='UTF-8'?> <JCSDataFile > xmlns:gml="http://www.opengis.net/gml"; > xmlns:xsi="http://www.w3.org/2000/10/XMLSchema-instance"; > > <JCSGMLInputTemplate> > <CollectionElement>featureCollection</CollectionElement> > <CRSElement>boundedBy</CRSElement> > <FeatureElement>feature</FeatureElement> > <GeometryElement>geometry</GeometryElement> > <ColumnDefinitions> > </ColumnDefinitions> > </JCSGMLInputTemplate> > > <featureCollection> > <gml:boundedBy> > <gml:Box srsName="http://www.opengis.net/gml/srs/epsg.xml#4326";> > <gml:coordinates decimal="." cs="," ts=" ">474.0,280.0 > 620.0,380.0</gml:coordinates> > </gml:Box> > </gml:boundedBy> > <feature> > ... > > -Jukka- > > > -----Alkuperäinen viesti----- > Lähettäjä: Rahkonen Jukka (MML) > Lähetetty: 23. marraskuuta 2017 11:36 > Vastaanottaja: jump-pilot-devel@lists.sourceforge.net > Aihe: Re: [JPP-Devel] SRID support in JML > > Hi, > > So could it work simply by adding srsName as an attribute into > featureCollection: > > <?xml version='1.0' encoding='UTF-8'?> <JCSDataFile > xmlns:gml="http://www.opengis.net/gml"; > xmlns:xsi="http://www.w3.org/2000/10/XMLSchema-instance"; > > <JCSGMLInputTemplate> > <CollectionElement>featureCollection</CollectionElement> > <FeatureElement>feature</FeatureElement> > <GeometryElement>geometry</GeometryElement> > <ColumnDefinitions> > </ColumnDefinitions> > </JCSGMLInputTemplate> > > <featureCollection srsName="http://www.opengis.net/gml/srs/epsg.xml#4326";> > <feature> > <geometry> > <gml:Polygon> > <gml:outerBoundaryIs> > <gml:LinearRing> > <gml:coordinates>474.0,371.0 > 620.0,380.0 > 520.0,280.0 > 474.0,371.0 </gml:coordinates> > </gml:LinearRing> > </gml:outerBoundaryIs> > </gml:Polygon> > </geometry> > </feature> > > </featureCollection> > </JCSDataFile> > > > -----Alkuperäinen viesti----- > Lähettäjä: edgar.sol...@web.de [mailto:edgar.sol...@web.de] > Lähetetty: 22. marraskuuta 2017 23:35 > Vastaanottaja: jump-pilot-devel@lists.sourceforge.net > Aihe: Re: [JPP-Devel] SRID support in JML > > Jukka, > > adding to the XML structure will be ignored by current readers. changing the > structure would break things. > > ..ede > > On 11/22/2017 21:41, Rahkonen Jukka (MML) wrote: >> Hi, >> >> In GML srsName is set for each feature. See the GML2 response from >> http://demo.geo-solutions.it/geoserver/wfs?service=wfs&version=1.0.0&; >> r >> equest=getfeature&typename=topp:states&maxfeatures=5 >> We have the same SRID for the whole layer so one occurrance per file would >> be enough. But I wonder if changing the JML format would break backwards >> interoperability? I don't like the sidecar files but they would not make >> harm for old OJ versions. >> >> -Jukka- >> >> ________________________________________ >> Lähettäjä: edgar.sol...@web.de <edgar.sol...@web.de> >> Lähetetty: 22. marraskuuta 2017 18:42 >> Vastaanottaja: jump-pilot-devel@lists.sourceforge.net >> Aihe: Re: [JPP-Devel] SRID support in JML >> >> as jml is essentially gml, how is srid support defined in the gml specs? >> >> ..ede >> >> On 22.11.2017 17:40, Giuseppe Aruta wrote: >>> we should investigate o JML documentation (if any) if this format support >>> embedded projection info. Another alternative could be that those infos can >>> be stored in any external extra file, like .prj or .aux, in this case >>> OpenJUMP is already able to read srid from any <file name>.<file >>> format>.aux.xml file stored with the dataset. >>> Peppe >>> >>> >>> 2017-11-22 16:47 GMT+01:00 <edgar.sol...@web.de >>> <mailto:edgar.sol...@web.de>>: >>> >>> Jukka, >>> >>> you are right. just checked! as SRID is held in a style object and >>> styles are only saved in projects, a saved JML file currently lacks this >>> information. >>> >>> .ede >>> >>> On 22.11.2017 16:19, Rahkonen Jukka (MML) wrote: >>> > Hi, >>> > >>> > >>> > >>> > Am I right that we have an enhanced SRID support in OpenJUMP and >>> shapefiles via .prj files, but nothing at all for JML format? >>> > >>> > >>> > >>> > -Jukka Rahkonen- >>> > >>> > >>> > >>> > >>> ------------------------------------------------------------------------------ >>> > Check out the vibrant tech community on one of the world's most >>> > engaging tech sites, Slashdot.org! http://sdm.link/slashdot >>> > >>> > >>> > >>> > _______________________________________________ >>> > Jump-pilot-devel mailing list >>> > Jump-pilot-devel@lists.sourceforge.net >>> <mailto:Jump-pilot-devel@lists.sourceforge.net> >>> > https://lists.sourceforge.net/lists/listinfo/jump-pilot-devel >>> <https://lists.sourceforge.net/lists/listinfo/jump-pilot-devel> >>> > >>> >>> >>> >>> ------------------------------------------------------------------------------ >>> Check out the vibrant tech community on one of the world's most >>> engaging tech sites, Slashdot.org! http://sdm.link/slashdot >>> _______________________________________________ >>> Jump-pilot-devel mailing list >>> Jump-pilot-devel@lists.sourceforge.net >>> <mailto:Jump-pilot-devel@lists.sourceforge.net> >>> https://lists.sourceforge.net/lists/listinfo/jump-pilot-devel >>> <https://lists.sourceforge.net/lists/listinfo/jump-pilot-devel> >>> >>> >>> >>> >>> -------------------------------------------------------------------- >>> - >>> --------- Check out the vibrant tech community on one of the world's >>> most engaging tech sites, Slashdot.org! http://sdm.link/slashdot >>> >>> >>> >>> _______________________________________________ >>> Jump-pilot-devel mailing list >>> Jump-pilot-devel@lists.sourceforge.net >>> https://lists.sourceforge.net/lists/listinfo/jump-pilot-devel >>> >> >> >> --------------------------------------------------------------------- >> - >> -------- Check out the vibrant tech community on one of the world's >> most engaging tech sites, Slashdot.org! http://sdm.link/slashdot >> _______________________________________________ >> Jump-pilot-devel mailing list >> Jump-pilot-devel@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/jump-pilot-devel >> >> --------------------------------------------------------------------- >> - >> -------- Check out the vibrant tech community on one of the world's >> most engaging tech sites, Slashdot.org! http://sdm.link/slashdot >> _______________________________________________ >> Jump-pilot-devel mailing list >> Jump-pilot-devel@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/jump-pilot-devel >> > > > ---------------------------------------------------------------------- > -------- Check out the vibrant tech community on one of the world's > most engaging tech sites, Slashdot.org! http://sdm.link/slashdot > _______________________________________________ > Jump-pilot-devel mailing list > Jump-pilot-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/jump-pilot-devel > ---------------------------------------------------------------------- > -------- Check out the vibrant tech community on one of the world's > most engaging tech sites, Slashdot.org! http://sdm.link/slashdot > _______________________________________________ > Jump-pilot-devel mailing list > Jump-pilot-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/jump-pilot-devel > ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Jump-pilot-devel mailing list Jump-pilot-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/jump-pilot-devel ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Jump-pilot-devel mailing list Jump-pilot-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/jump-pilot-devel
