Bug report #20302
XYZ Tiles in TMS convention do not display properly
| Status: | Closed | ||
|---|---|---|---|
| Priority: | Normal | ||
| Assignee: | - | ||
| Category: | Web Services clients/XYZ | ||
| Affected QGIS version: | 3.4.0 | Regression?: | No |
| Operating System: | Easy fix?: | No | |
| Pull Request or Patch supplied: | No | Resolution: | worksforme |
| Crashes QGIS or corrupts data: | No | Copied to github as #: | 28123 |
Description
I tried to explore this in detail here: https://gis.stackexchange.com/questions/300336/updated-can-tms-convention-xyz-tiles-be-displayed-in-qgis-3-4
Briefly, TMS-convention tiles have the inverted Y axis as part of their convention. Therefore, I can't get them to display properly in QGIS 3.4 when using a XYZ Tiles layer.
I did spend lots of time Googling to discover if I should be doing this in some other way or of this is resolved in some way, but I couldn't find it.
History
#1
Updated by Giovanni Manghi about 6 years ago
- Category changed from Rasters to Web Services clients/XYZ
- Status changed from Open to Feedback
- Operating System deleted (
Mac 10.13)
With the Quick Map Services plugin you can add custom WMS and TMS services. So I think this should become a feature request.
#2
Updated by Ken Martin about 6 years ago
Giovanni Manghi wrote:
With the Quick Map Services plugin you can add custom WMS and TMS services. So I think this should become a feature request.
Thanks Giovanni. Do you know if the Quick Map Services plugin will work without having to register tilesets with an external registry? (Some that I have are private and/or in development.)
If this does become a feature request, from my limited perspective I think a simple "select" box in the XYZ Tiles edit window that defaulted to "XYZ" but also offered "TMS" (and perhaps other options, if it makes sense).
#3
Updated by Ken Martin about 6 years ago
Is there any chance that the XYZ URL does more than just string replacement?
Like, rather than just...
../{z}/{x}/{y}.png
...maybe I could do...
../{z}/{x}/${(2^z)-y-1}.png#4
Updated by Alessandro Pasotti about 6 years ago
{-y} will invert your axis
#5
Updated by Alessandro Pasotti about 6 years ago
- File qgis-tms-inverted-axis.png added
It's documented in the tooltip
#6
Updated by Ken Martin about 6 years ago
Alessandro, that's AWESOME! I never lingered long enough to even know there was a tool tip.
Thank you! :)
#7
Updated by Giovanni Manghi about 6 years ago
- Resolution set to worksforme
- Status changed from Feedback to Closed