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some notes about tiles

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Daniel Barlow 2025-05-28 15:28:09 +01:00
parent 41e34b3654
commit 43cdd633f0
1 changed files with 2 additions and 2 deletions
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@ -121,6 +121,7 @@ https://git.syndicate-lang.org/tonyg/squeak-phone/raw/commit/474960ddc665ed445a1
we need to extend to multiple tiles'-worth of map we need to extend to multiple tiles'-worth of map
* get tile for curent lat/long and request overpass data for enough * get tile for curent lat/long and request overpass data for enough
surrounding tiles to fill the screen surrounding tiles to fill the screen
@ -133,9 +134,8 @@ them if the come up again
* to get it centred on the cyclist, take the tile fractional part * * to get it centred on the cyclist, take the tile fractional part *
256, and translate the canvas up and left by that amount 256, and translate the canvas up and left by that amount
* add a cache of [x,y,z] -> polylines so that we don't keep hitting overpass
and offset
by