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joe-akeem / contour-tiles

A docker image to create vector tiles for contour lines and hillshade raster tiles of europe (mbtiles files).
MIT License
36 stars 10 forks source link

Empty vector map preview #20

Closed necarnot closed 1 year ago

necarnot commented 1 year ago

Hello,

Thank you for this work, so helpful. I followed the README and successfully created the mbtiles for switzerland. In the osm directory, I can see the mbtiles are created, and I tried to import them into QGis and they did appear, which proves their creation was a success.

After that, I'm running docker compose up to launch klokantech's tileserver-gl, and the http://localhost:8080 does show the basic web page with the styles and data chapters.

In the data chapters, I can see the raster maps of slope and hillshades. But in the first chapter, styles, I can click on "Vector" to see the map but I only get a blank map. In this blank map, I can (pretend to) zoom, as I can see the URL changing. I can also rotate like in any vector map, but nothing but white map is showing.

In the docker compose logs, I see nothing happening.

I also tried to replace klokantek's tileserver-gl docker image with maptiler's one, as adviced on dockerhub, but to no avail and with the same result.

I see no error in my browsers dev tools logs (firefox and chromium).

joe-akeem commented 1 year ago

Hi,

thanks for reporting. I just fixed part of the problem. The resource for glyphs returned a 404 error. Now if you enter coordinates and a zoom level that lie within the area that you configured and a zoom level >=10, you should get the styled map. For example, for Switzerland this should work: http://localhost:8080/styles/contour/#10/46.665/7.8978

Why it doesn't automatically center around the data that it finds in the mbtiles file I haven't found out yet. For the inspection of the raw data it seems to work.

necarnot commented 1 year ago

Hi @joe-akeem , I confirm that you patch solves the issue the way you explained. About the centering, I'll also work on my side to try to understand.

Thank you.

joe-akeem commented 1 year ago

@necarnot this issue is fixed now. The preview centers at [7.65849, 45.97728] which is the location of Matterhorn in Switzerland. If you choose a different area that doesn't contain data for this coordinate, the center can be changed in the styles/contours.json file.