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Satellite Layer disappears on higher zoom level in GCP interface #928

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abrbhat opened this issue Oct 21, 2020 · 1 comment
Open

Satellite Layer disappears on higher zoom level in GCP interface #928

abrbhat opened this issue Oct 21, 2020 · 1 comment
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good first issue help wanted improvements

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@abrbhat
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@abrbhat abrbhat commented Oct 21, 2020

What's your browser and operating system? (Copy/paste the output of https://www.whatismybrowser.com/)

Firefox

What is the problem?

Satellite Layer disappears on higher zoom level in GCP interface

image

It makes it difficult to accurately mark the position.

What should be the expected behavior?

The map should remain visible.

How can we reproduce this? (What steps did you do to trigger the problem? What parameters are you using for processing? Please include multiple screenshots of the problem! If possible please include a copy of your dataset uploaded on Google Drive or Dropbox. Be detailed)

Zoom a lot in the map.
@gjsa73
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@gjsa73 gjsa73 commented Nov 12, 2020

Suggestion to add &zmax=18 to the REST URL for any of the XYZ tiled background image providers. E.g. for ESRI satellite image you can demonstrate the issue by adding this XYZ tile service to QGIS:
https://server.arcgisonline.com/ArcGIS/rest/services/World_Imagery/MapServer/tile/{z}/{y}/{x}

But if the max zoom level is not set to 18 the same problem will manifest in the QGIS canvas when zooming past an inherent maximum zoom level from the provider. By specifying the maximum zoom, you can zoom in past that level and the image will remain, it just doesn't increase in resolution.
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Labels
good first issue help wanted improvements
3 participants
@pierotofy @abrbhat @gjsa73