Raster tile overlay with TMS coordinates (non-flipped Y)

[kkaefer]

Hi,
We want to provide our own raster overlay for a certain area but MapBox flips the y coordinate while our tile service does not. We are providing a style.json and a tileset.json file like this:

style.json

    {
  "version": 7,
  "sources": {
    "simple-tiles": {
      "type": "raster",
      "url": "http://localhost:9000/tileset.json",
      "tileSize": 256
    }
  },
  "layers": [
    {
      "id": "background",
      "type": "background",
      "paint": {
        "background-color": "rgb(140,215,225)"
      }
    },
    {
      "id": "simple-tiles",
      "type": "raster",
      "source": "simple-tiles"
    }
  ]
}

tileset.json

{
  "tiles": [
    "http://localhost:9000/proxy.php?z={z}&x={x}&y={y}"
  ],
  "tilejson": "2.1.0",
  "scheme": "tms"
}

The proxy-php currently only flips the y-coordinate back, we want to get rid of the proxy.php file. How can we achieve non-flipped-y tile loading?

[drmarkpowell]

+1 for this feature. We're going to need to re-tile all our Mars maps to match the other standard and maintain both versions to support legacy tools and Mapbox map views...would be better on our end to have only one tileset.

[mention-bot]

@kkaefer, thanks for your PR! By analyzing this pull request, we identified @jfirebaugh, @1ec5 and @mourner to be potential reviewers.

[1ec5]

👍 Would you do the honors and add a blurb to the iOS and macOS changelogs?

[kkaefer]

JS-side PR was already merged: mapbox/mapbox-gl-js#2565