Thanks (I think) Andrea. Not very comforting. I am wanting this to work in a linux docker build. Good to know that I should not waste time on prebuilt binaries. I like the geoserver approach. That seems the best long term solution and could be used as a docker layer so it doesn’t have to be built every time. However, this is clearly going to take me some time! Since my code already handles geopackage, I think I will add gdal, and then internally just convert geodatabase to gpkg. Ugly but should give me time to work out a direct gdb solution.
From: Andrea Aime <andrea.a...@geosolutionsgroup.com> Sent: Wednesday, 5 March 2025 9:47 PM To: Phil Scadden <p.scad...@gns.cri.nz> Cc: geotools-gt2-users@lists.sourceforge.net Subject: Re: [Geotools-gt2-users] Working with GDAL and File Geodatabases CAUTION: This email originated from outside of the organization. Do not click links or open attachments unless you recognize the sender and know the content is safe: Hi Phil, the documentation is correct in the sense that the code was manually tested for 3.2 or older. Setting up GDAL to work with GeoTools is sort of a dark magic art that few master, Linux distributions stopped providing gdal-java bindings making a manual build almost the only option. Even for the github action testing GDAL on Linux we pull a pre-built bridge library, a solution that works for the time being, but won't last in the long run: https://github.com/geotools/geotools/blob/main/.github/workflows/linux_gdal.yml#L23 The GeoServer docker image also has an example, in this case building everything from sources: https://github.com/geoserver/docker/pull/138 I don't have a ready to use recipe regarding Windows... wondering if the https://gisinternals.com/ builds have java support at all? Regards, Andrea Aime == GeoServer Professional Services from the experts! Visit http://bit.ly/gs-services-us for more information. == Ing. Andrea Aime @geowolf Technical Lead GeoSolutions Group phone: +39 0584 962313 fax: +39 0584 1660272 mob: +39 339 8844549 https://www.geosolutionsgroup.com/ 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 On Wed, Mar 5, 2025 at 5:00 AM Phil Scadden <p.scad...@gns.cri.nz<mailto:p.scad...@gns.cri.nz>> wrote: I am having something of nightmare setting this up. The documentation (33-snapshot) says GDAL 3.2 or OLDER. Puzzling? Downloading GDAL3.2 from gisinternals archive, I find gdalinfo –formats complaining about entrypoint for sqlite3 in the gdal302.dll after I set up all the path and environment variables (and OGRDataStoreFactory factory = new JniOGRDataStoreFactory(); dies with “java.lang.UnsatisfiedLinkError: C:\GDAL\gdal\java\gdalalljni.dll: The specified procedure could not be found” ). Is the documentation correct here? From: Ian Turton <ijtur...@gmail.com<mailto:ijtur...@gmail.com>> Sent: Thursday, 16 May 2024 9:02 PM To: Phil Scadden <p.scad...@gns.cri.nz<mailto:p.scad...@gns.cri.nz>> Cc: geotools-gt2-users@lists.sourceforge.net<mailto:geotools-gt2-users@lists.sourceforge.net> Subject: Re: [Geotools-gt2-users] getting from geometry in SimpleFeature to ESRI geometry CAUTION: This email originated from outside of the organization. Do not click links or open attachments unless you recognize the sender and know the content is safe: That's probably my fault :-) GeoJSON parsing has moved to gt-geojson-core which along with the gt-geojson-store replaces the functionality in gt-geojson. The plan is at some point in the future to remove gt-geoson but currently GeoServer makes use of it (at least I think that was the problem) and I ran out of time and energy, With gt-geoson-core you should be able to do something like this: GeometryFactory gf = new GeometryFactory(); SimpleFeatureType type = DataUtilities.createType("test", "the_geom:Point:srid=4326"); SimpleFeatureBuilder builder = new SimpleFeatureBuilder(type); builder.add(gf.createPoint(new Coordinate(1.23456789, 0.123456789))); SimpleFeature feature = builder.buildFeature(null); ByteArrayOutputStream out = new ByteArrayOutputStream(); GeoJSONWriter writer = new GeoJSONWriter(out); writer.setMaxDecimals(6); writer.write(feature); Ian On Thu, 16 May 2024 at 05:56, Phil Scadden <p.scad...@gns.cri.nz<mailto:p.scad...@gns.cri.nz>> wrote: Ultimately, what I am trying to do is read some features from a geopkg using geotools, fidding with contents of the feature and then writing the Feature to an ESRI FeatureServer using the REST API. Along the way, I have to get the geotools geometry converted to an ESRI Geometry class. The ESRI OGCGeometry (https://esri.github.io/geometry-api-java<https://esri.github.io/geometry-api-java%20can> can convert to ESRI geometry, but the fromGeoJson seems to be only method for creating a OGCGeometry. What I am struggling with is getting a GeoJSON string out of geotools. I added gt-geojson module but can only see method for writing to file. Am I missing something blindingly obvious here? The documentation doesn’t seem up to date – pointing to methods that (eg GeoJSONWriter) that don’t exist (and pages 404 in the Javadoc). Using 31.0 Also looking at option of using a WKT route instead. ________________________________________________ Ngā mihi, Nā Phil Scadden (he/him) Te Raraunga me te Tātaritanga Mokowā Aronuku (Geospatial Data and Analysis) GNS Science Te Pῡ Ao 13A Alma St, Renwick, 7204 New Zealand Ph +64 27 3463185 “Whāia te iti kahurangi ki te tūohu koe me he maunga teitei” Notice: This email and any attachments are confidential and may not be used, published or redistributed without the prior written consent of the Institute of Geological and Nuclear Sciences Limited (GNS Science). If received in error please destroy and immediately notify GNS Science. Do not copy or disclose the contents. _______________________________________________ GeoTools-GT2-Users mailing list GeoTools-GT2-Users@lists.sourceforge.net<mailto:GeoTools-GT2-Users@lists.sourceforge.net> https://lists.sourceforge.net/lists/listinfo/geotools-gt2-users -- Ian Turton Notice: This email and any attachments are confidential and may not be used, published or redistributed without the prior written consent of the Institute of Geological and Nuclear Sciences Limited (GNS Science). If received in error please destroy and immediately notify GNS Science. Do not copy or disclose the contents. _______________________________________________ GeoTools-GT2-Users mailing list GeoTools-GT2-Users@lists.sourceforge.net<mailto:GeoTools-GT2-Users@lists.sourceforge.net> https://lists.sourceforge.net/lists/listinfo/geotools-gt2-users Notice: This email and any attachments are confidential and may not be used, published or redistributed without the prior written consent of the Institute of Geological and Nuclear Sciences Limited (GNS Science). If received in error please destroy and immediately notify GNS Science. Do not copy or disclose the contents.
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