Creating a custom tilematrixset

[traviskirstine]

I've been attempting to add a tilematrixset based on a UTM z17 CSRSv3 (EPSG:22317) crs using a JSON file generated via morcantile and loaded in my docker environment via volume link to the tilematrixset file and setting the TILEMATRIXSET_DIRECTORY environment variable. Titiler appears to load the tilematrixset without issue but when I try to access the image tiles via QGIS and a WMTS service titiler indicates a warning :PointOutsideTMSBounds: Point (-80.02549710696253, 42.52965097040597) is outside TMS bounds and fails to render the image (or make the WTMS request). Any suggestions on how I can set this up correctly would be appreciated.

# Create the tilematrixset
from morecantile import tms, TileMatrixSet
from pyproj import CRS

EPSG22317 = TileMatrixSet.custom(
    extent=[250254.25, 4613137.66, 749745.98, 9329005.18],
    crs=CRS.from_epsg(22317),
    matrix_scale=[1, 1]
)
with open("EPSG22317.json", "w") as f:
    f.write(EPSG22317.model_dump_json())

[vincentsarago]

@traviskirstine do you have an image we can use to replicate your issue?

[traviskirstine]

@vincentsarago please see:
https://2537swoopcogs.s3.ca-central-1.amazonaws.com/1km17531047150SWOOP2025.tif
https://2537swoopcogs.s3.ca-central-1.amazonaws.com/1km17531047160SWOOP2025.tif

[vincentsarago]

@traviskirstine there is a small bug in titiler WMTS extension. Your TMS document doesn't have an id which is then is missing in the WMTS xml document.

you can easily fix that doing 👇

# Create the tilematrixset
from morecantile import tms, TileMatrixSet
from pyproj import CRS

EPSG22317 = TileMatrixSet.custom(
    id="EPSG22317",
    extent=[250254.25, 4613137.66, 749745.98, 9329005.18],
    crs=CRS.from_epsg(22317),
    matrix_scale=[1, 1]
)
with open("EPSG22317.json", "w") as f:
    f.write(EPSG22317.model_dump_json())