Hi Peter! I'm not sure to have time to test before next year! :/ Can you just specify the "format" you use to store geometries? Maybe it's documented in your package but I didn't have any time to check for it...
Thierry -- https://www.ulthar.net -- http://pyams.readthedocs.io Le jeu. 22 déc. 2022 à 11:13, Peter Wilkinson <p...@thirdfloor.com.au> a écrit : > > > On 22 Dec 2022, at 6:44 pm, Thierry Florac <tflo...@gmail.com> wrote: > > My main usage are probably : > - to find objects which are located below a given distance from a > reference points > - to find objects which are contained into a given geometry or > overlapping it. > > I generally use PostGIS or Elasticsearch to handle these queries, but in > some contexts it could be useful to mix these queries with other attributes > queries directly from the catalog… > > > Hi Thierry, > > I’m in a similar position and really don’t want to carry around the > complexity of PostGIS installs and syncing data between two systems. I’ve > been able to get sub ms results when searching for a point in 300,000+ > polygons from the all country admin region dataset at > https://gadm.org/download_world.html - that is plenty fast enough for my > needs... > > At the moment there is code in a fork installable via: > > pip install 'git+ > https://github.com/pfw/hypatia.git@spatial-index#egg=hypatia[spatial]' > > Which so far passes all my tests. > > It exposes intersects as a Comparator so you can do things like: > > from shapely import box > spatialindex.intersects(box(151.20699218799413, -33.864564753236095, > 151.20729952635648, -33.86439938579896)).execute().all() > > Or combine as you would normally via: > > (spatialindex.intersects(box(151.20699218799413, -33.864564753236095, > 151.20729952635648, -33.86439938579896)) & > otherindex.eq(263)).execute().all() > > It does support other predicates than ‘intersects’ but doesn’t expose them > as Comparators yet - that will come shortly - have a look at test_belgium. > > The underlying data structure can support a KNN query for finding ’nearest > to x’ and I’ll add that as well. > > It would be great to hear if the current state works for your needs and > once the few extra bits are there I’ll clean it up for a PR on the main > repo. > > Peter W. > > -- > You received this message because you are subscribed to the Google Groups > "pylons-discuss" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to pylons-discuss+unsubscr...@googlegroups.com. > To view this discussion on the web visit > https://groups.google.com/d/msgid/pylons-discuss/5EFF8574-F3EF-4DCA-A1DD-FBC95CFBD438%40thirdfloor.com.au > <https://groups.google.com/d/msgid/pylons-discuss/5EFF8574-F3EF-4DCA-A1DD-FBC95CFBD438%40thirdfloor.com.au?utm_medium=email&utm_source=footer> > . > -- You received this message because you are subscribed to the Google Groups "pylons-discuss" group. To unsubscribe from this group and stop receiving emails from it, send an email to pylons-discuss+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/pylons-discuss/CAPX_VWBhMjaER2%3DTgUOEzG1fCv%2BO_aKdSJM7t2XPyWQ6ONLjeA%40mail.gmail.com.
