openplanetary / opm

Open Planetary Mapping and Social Platform
http://openplanetarymap.org
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Basemap error when loading in QGIS #6

Closed shinjjo closed 5 years ago

shinjjo commented 6 years ago

Hello, I am Jaeho, drawing polygon Mars map. As the screenshot shows, an error occurs when I load the basemap. (Same problem happens except for OPM Mars Basemap v0.1 )

Could you please help.

screenshot from 2018-03-08 14-37-06

nmanaud commented 6 years ago

Hi Jaeho,

Thanks for raising this issue.

This is due to the fact that Y axes are inverted for all OPM raster basemaps (generated using gdal2tiles.py). Web clients like Leaflet use a TMS=true parameter to invert Y axis numbering.Using QQIS, you can overcome this by specifying {-y} instead of {y}.

Try: http://s3-eu-west-1.amazonaws.com/whereonmars.cartodb.net/mola-color/{z}/{x}/{-y}.png