https://wiki.tessercat.net/index.php?action=history&feed=atom&title=Debugging_MapboxGLDebugging MapboxGL - Revision history2026-04-08T03:54:17ZRevision history for this page on the wikiMediaWiki 1.36.2https://wiki.tessercat.net/index.php?title=Debugging_MapboxGL&diff=14231&oldid=prevSteve: added a start2021-11-18T22:37:37Z<p>added a start</p>
<p><b>New page</b></p><div>Some errors fail silently in mapbox and this can be annoying when you can't make a layer show up. A few things to make sure you check:<br />
<br />
# Vector layers require a <code>source-layer</code> prop or argument. Often times, silent failing can be simply because the source layer is wrong. When using a tile server response from profiles.wprdc.org, make sure the source-layer is the same as the table name (`<code><schema>.<nowiki><table/view></nowiki></code>).<br />
# Look in the network pane of your browser's dev tools and ensure that the requests to the source data are working.<br />
# Make sure the projections are correct. Connect the source in a desktop GIS like QGis and see if the data is showing elsewhere. I'm fairly certain that mapbox requires the data to already be in [[wikipedia:Web_Mercator_projection|WGS 84 Web Mercator]] .<br />
# If you see tile data coming in the network pane (<code>.pbf</code>, <code>.mvt</code>, etc.) check to see if they have any data. If data in your target area is empty (i.e. 0 bytes), this could be a sign the projection is incorrect.</div>Steve