Rowan Winsemius

Christian | Husband | Dad | Mapping | Gardening | Maintainer of @turfjs in my spare time

[Rowan Winsemius @RowanWinsemius]

@erxclau @chrispahm Yeah spatial indices make a big difference!
It can be tricky to implement them within TurfJS itself because everyones use cases are a little different, but we do where we can :)

[Rowan Winsemius @RowanWinsemius]

@erxclau @chrispahm Yeah that one should have the relevant fix 😢.
How many geoms are you processing? Generally intersect is a pretty complex operation so not surprising that it takes a while. Would be interesting to pass them through jsts and see how that goes in comparison.

[Rowan Winsemius @RowanWinsemius]

@alexgleith @dinomirMT PlanetaryComputer faced similar and from what I can tell they basically ended up splitting into a MultiPolygon. So depending on your fuller stack there might be some ideas in
https://t.co/NlfhzJFxso

[Rowan Winsemius @RowanWinsemius]

@jo_chemla @FSQStudio @felt @CARTO @heavy_ai @Esri If you're prepared to self-host then @TerriaJS might be an option. It supports loads of formats out of the box.
https://t.co/tZIn56qqOI

[Rowan Winsemius @RowanWinsemius]

@stevage1 I kicked the tyres on @stytchauth a while ago and was happy with it
https://t.co/tbyTNiCSF2
Lots of options and pretty good docs

[Rowan Winsemius @RowanWinsemius]

@stephenlead @briantimoney Still relevant 10+ years later - has always stuck in my memory back!

[Rowan Winsemius @RowanWinsemius]

@SimonGIS The closest I've played with was some Sydney ferry data. It had passenger numbers for different trips etc. Half-started a map-based visualisation but never finished it off completely

[Rowan Winsemius @RowanWinsemius]

@stevage1 Depending on requirements things like simplifying your geometries and making sure you only store the required decimal precision make a big difference.
But yep there will be times when adding to the stack using a DB or whatever becomes the only option.

[Rowan Winsemius @RowanWinsemius]

@alexgleith Actually I think it's EPSG:8857

[Rowan Winsemius @RowanWinsemius]

@alexgleith How about the 2017-18 Equal Earth projection ?
https://t.co/SpIImPVmma
EPSG:1078
Pretty sure it's widely supported.

[Rowan Winsemius @RowanWinsemius]

@tmcw I tried out Stytch recently and found it pretty good to work with, I hadn't heard of it before but it had the features I was looking for in a hosted auth solution.
https://t.co/tbyTNiCkPu

[Rowan Winsemius @RowanWinsemius]

@getbounds Fun! Does it handle reprojection on the fly, or does the COG need to be in web mercator? I tried a pure js approach a while back but reprojection was my biggest challenge
https://t.co/skEXzJJK1V

[Rowan Winsemius @RowanWinsemius]

@alexgleith @petegadomski @matthmohr @STACspec @foss4gna TiTiler can give you either a WMS or WMTS (can't remember which) from a STAC reference.
Guess the difference is you need the STAC reference first, rather than pre-configuring all the layers

[Rowan Winsemius @RowanWinsemius]

@alexgleith @stevage1 Some of the buildings even have logos on them!
And interesting & great to see the adoption of the Cesium B3DM spec, rather than another new way of distributing that style of data.

[Rowan Winsemius @RowanWinsemius]

@MikeTreglia @cogeotiff @LeafletJS My general experience is that a TiTiler instance gives best performance and flexibility.
However if your COGs are web mercator and well tiled then clientside does work, eg georaster-layer-for-leaflet
https://t.co/UNPiBsDAXg

[Rowan Winsemius @RowanWinsemius]

@tibo_maker The ability for the user to choose between using the old twitter logo/branding or the new X logo/branding.

[Rowan Winsemius @RowanWinsemius]

@robinlovelace @martinfleis This sounds like an interesting problem! I guess most simplification algorithms work on a per geometry basis, rather than considering surrounding geoms.
I wonder how vector tile generation handles this - @enf might have some ideas from Tippecanoe world?