Josh, Thanks for inviting the Apache Projects to participate in OGC activities.
To get things jump started, could you get an OGC response to Julian’s comments? > I think allowing WKB and WKT is sufficient. > > Perhaps Geometry could be a composite type (WKT, SRID) or (WKB, SRID). SRID > (spatial reference identifier) is almost always needed to qualify a geometry > value. It is analogous to how TimeZone is needed (implicitly or explicitly) > to qualify a DateTime value. > > For Geospatial queries to perform well requires some kind of indexing (and/or > clever data organization). Geospatial indexing is very complex, and there is > no “one size fits all” approach. So I recommend that Arrow stays out of the > indexing business, and leaves indexing to the engine. George Percivall GeoRoundtable <https://www.linkedin.com/company/geo-roundtable/> [email protected] > On Jun 28, 2021, at 4:18 PM, Joshua Lieberman <[email protected]> > wrote: > > Hi, > > This is Josh Lieberman, on the staff of the OGC. I’ve been interested for a > while in helping to standardize geospatial data types for various python > packages and other mainstream computing tools. The goal is to help base these > on common, valid geospatial models in order to make data sharing across tools > and platforms more reliable. Another goal is to help avoid reinventing > wheels. For example, PostGIS supports EWKT and EWKB which already include > SRID’s. > > We (OGC) are specifically interested in working with our partners, such as > Apache, to host an “Encoding Summit” at our September or December Member > Meeting. A principle focus will be JSON encodings, but data type encodings > for other environments are also of interest. One outcome could be an > Encodings working group that targets “round trip” interoperability between > various encodings. Another could simply be joint work items to further these > objectives. > > Let me know if you might be interested in participating. > > Thanks, > > Josh > > >> On Jun 28, 2021, at 12:49 PM, Martin Desruisseaux >> <[email protected]> wrote: >> >> Le 28/06/2021 à 18:07, Jim Hughes a écrit : >>> Would the [email protected] mailing list be a good place to discuss >>> things? >> >> Sure please do. I'm not familiar with the arrow project but I could try to >> participate on the use of international standards (OGC and ISO) on the >> following topics: >> >> * SRID (or more generally Coordinate Reference Systems) >> * WKB or WKT for geometries >> * Queries using standard spatial filters (defined by OGC) >> >> Martin >> >> >
