Show HN: Tile38 – Realtime geofencing and geospatial index

Post by tidwall » Tue, Mar 05, 2019, 4:13 PM UTC

ptrott2017 wrote: post #12

gravypod wrote: post #6

Earlier quoted context omitted.

That's really cool! The only other optimization that I wanted to try and do was to use GPU acceleration to support huge numbers of shapes and entities. Something similar to what's described here [0]. I think it would really help for very very large numbers of entities or large complex geometry. [0] - https://devblogs.nvidia.com/thinking-parallel-part-i-collisi...

I think JB originally added Z for zoom level for map tile zoom level, but (having done exactly this for some internal demos) you can totally abuse it for what you want and it works well. Tile38 is a really excellent geospatial database and a lovely codebase. As for integrating GPU - look at Gorgonia's CU package by Xuanyi Chew that will give you ahead start from using CUDA from Go. Good luck.

Post by tidwall » Tue, Mar 05, 2019, 4:27 PM UTC

ing33k wrote: post #15

Hi ! Thanks for creating this project. This looks extremely usefu l for the current project I am working on. Question : is it possible to do a Nearby query on a geohash ?

  NEARBY fleet HASH POINT lat lon

Post by rngesus » Wed, Mar 06, 2019, 10:28 AM UTC

tidwall wrote: post #20

rngesus wrote: post #17

Tile38 is a great product, we've been using it in production to track, and manage geofences for a large amount of asphalt and cement trucks :)

Sweet! I'd love to hear more about your implementation.