Bug report #6822

Google Satellite tiles misalignment

Added by Andre Joost about 2 years ago. Updated 11 days ago.

Status:Closed Start Date:12/04/2012
Priority:Normal Due date:
Assigned to:Pirmin Kalberer % Done:

0%

Category:-
Target version:-
Patch supplied:No Tag:

Description

Trying to digitize the coast of Dominican Republic at high zoom level, I noticed a strange shift-off in the tile picture when I zoomed further in. Even panning around makes the tiles shift off the digitized line.
I digitized at 1:1269 and zoomed into 1:635. Shapefile and screenshots (all EPSG:3875) are attached.

Strangely this does not happen with bing aerial tiles in the same zoom levels.
Tested with Qgis Lisboa and Master, Openlayers plugin 1.0.0 on Windows 7.

Google-satellite.zip (2.2 MB) Andre Joost, 12/04/2012 10:23 am

History

Updated by Andre Joost about 2 years ago

  • Target version deleted (Version 1.3)

Updated by Jacob Madsen almost 2 years ago

I have encountered the same issue. The strange thing is, that the bug only occurs when using the "Google Satellite" layer. The other 3 layers - "Streets", "Hybrid" and "Physical" do not have this problem. OpenLayers 1.1.0 plugin on latest Quantum GIS Desktop build 5ac7d03 running on Windows 7.

Updated by Andre Joost almost 2 years ago

... and it does not happen everywhere. Here in Germany I had no such problems. Maybe it is related to the available zoomlevel for Satellite imagery, which might be lower in less populated areas.

Updated by Matthew Schubert over 1 year ago

I can confirm this bug. I'm trying to digitize some rail lines, and I notice a zoom difference and offset between the Hybrid and Satellite layers from Google. The Hybrid layer seems to be correct, while the Satellite layer isn't.

Updated by Richard Fesler about 1 year ago

I can also confirm this bug on 2.0.1 (running on Win8-64.) Both Bing and Google aerials and aeriel/hybrid for me.

Updated by Dan Call 9 months ago

This issue still exists in QGIS 2.2.0-2. I was digitizing in New Castle county, Delaware, USA, at the closest zoom level, features in Google imagery didn't line up, and changed placement repeatedly when panning around the view.

Updated by Donald MacFarlan 9 months ago

I get the same result in QGIS 2.2 64 bit on Windows 7 (QGIS downloaded and installed today, openlayers plugin updated). Working on a remote area of the North Island West Coast, Google satellite shows very erratic displacement from GPS points. Bing Maps is better. A related (???) is that when I make a JPEG image the satellite image (OK in Print Oomposer) either disappears or is displaced a significant amount from the overlain data loaded from shapefiles and .csv files This also happens in Bing Maps

I had the same displacement problem when I first installed QGIS 2.2 32 bit, but updating the openlayers plugin fixed it. Will revert to 32 bit in the meantime.

Updated by Pirmin Kalberer 11 days ago

  • Status changed from Open to Closed
  • Assigned to set to Pirmin Kalberer

Latest Google offset problm is fixed in version 1.3.5. Please test and reopen ticket, if problem still exists.

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