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512px Tile Support Broke

See original GitHub issue

Sandcastle

Screenshot: screen shot 2018-03-30 at 1 29 03 pm

Fixed by offsetting {z} tag replacement + 1.

Varying tile sizes used to work just fine. I don’t know when this broke or which commit is to blame.

Issue Analytics

State:
Created 5 years ago
Comments:7 (7 by maintainers)

Top GitHub Comments

1reaction

NaderCHASERcommented, Apr 8, 2018

256px Tiles

154 network requests Load Time: ~8.2s

512px Tiles

46 network requests 512px Tiles - ~3.6s

Even with HTTP(S)/2’s multiplexing, my 512px tiles were served and viewable over twice as fast as with 256px tiles.

I needed to confirm that my custom tiler wasn’t responsible for the 256px vs. 512px tile bug in Cesium. I did this through a JSFiddle running Leaflet, which displayed my 512px tiles properly.

Currently, I’m using the basic fix of offsetting the zoom +1. This week I’ll have more time to dig into Git blame and find the cause of this issue and hopefully get a PR submitted.

Sorry for the delay.

1reaction

NaderCHASERcommented, Mar 30, 2018

It’s been over a year @hpinkos. I found an ol-cesium issue from May 11, 2017 which reports this exact problem (but proposes - 1 level offset).

https://github.com/openlayers/ol-cesium/issues/457

I’ll likely end up with a PR to fix this as I’m migrating from 256px tiles to 512px tiles. No guarantee you all won’t beat me, though.