tile38

I can't stop precision loss in all cases, but I do my darnedest to avoid loss when it causes false positives, especially for stuff like intersect detection code. For example the collinear [1] function looks really big for a seemingly simple operation, but there are extra checks built in for precision loss and in the cases of compiler associate math issues (like a user borking a build with -ffast-math). I'm sure it's not all perfect but I feel pretty good about it overall. It certainly helps that much of the logic derived from the Tile38 [2] project, which has 8 years of use in production. I ported many of the tests too, which make me warm and fuzzy every time they pass. [1] https://github.com/tidwall/tg/blob/v0.1.0/tg.c#L389 [2] https://github.com/tidwall/tile38

BuntDB [0] from @tidwall uses this package as a backing data structure. And BuntDB is in turn used by Tile38 [1] [0] https://github.com/tidwall/buntdb [1] https://github.com/tidwall/tile38

Thanks for the pointers -- Leaflet I know as the visualization layer that is basically not-mapbox-GL. The rest are new to me, and will crawl through them. One of the nice out-of-the-box systems I've come across is Pelias[0], what are your opinions on it? It bundles and provides the API so it's one of the things I've thought to self-host if I'm going to. It looks like it doesn't do tiles so I'd need to find something for that? From deep in my bookmarks I also have: - https://github.com/tidwall/tile38 (in-memory search+geofencing+other) - https://openlayers.org/ (visualization, alternative to leaflet?) - https://download.geofabrik.de/ (where to actually download the OSM data, to hand it to something like PostGIS) - https://github.com/maptiler/tileserver-gl (A tile server... which presumably needs OSM data & takes coordinates with bounding b

Very good idea. Can't say I haven't also thought about this. I was also thinking about doing what Tile38 (https://github.com/tidwall/tile38) does and using the REDIS protocol. HTTP is a better option though. Or just both.

The tile38 docs (https://github.com/tidwall/tile38) are really good. Lots of animated GIFs combined with great structured text that really helps quickly explain all the complex things that a geospatial index can do.

Some people may not read the link because it appears grayed out in some browsers (the link has been posted before and so it appears in the browser history as visited). Maybe it's better to link to the changelog page, since this was reposted because a new version has been released [1]. [1] https://github.com/tidwall/tile38/releases/tag/1.11.0

On a side note, tidwall (Josh) is one of the primary reasons why I want to give Go a go. I love https://github.com/tidwall/tile38.