[Qgis-user] Clipping basemap

[Andreas Neumann]

Hi Mike, 

You can't directly zoom to the inverted polygon for the display in
composer. 

But: you can zoom to the inverted polygon in the main canvas (Right
click on the layer in the legend tree and zoom to layer) and then
synchronize the main canvas and the view in composer. 

Use this button (set to map canvas extent): 

Or you can interactively pan/zoom to the extent you want with the
following tool: 

First select the map element you want to pan/zoom and then use the above
marked tool. 

Greetings, 

Andreas 

On 2018-11-14 17:12, Michael Jabot wrote:

> Andreas 
> 
> This was a huge help! Thank You!! 
> 
> I have another dumb question. In composer is there a way to zoom to the inverted polygon for the display? 
> 
> I feel badly about all of these dumb questions!! 
> 
> THANK YOU again!! 
> 
> Mike 
> 
> ************************************* 
> Michael Jabot, Ph.D.
> Professor, Science Education 
> US Partner - _GLOBE Program_ 
> NASA Earth Ambassador
> Director, _Institute for Research in Science Teaching_
> The State University of New York at Fredonia
> 
> 716.320-0189 (Google Voice) 
> jabot at fredonia.edu 
> E250 Thompson Hall
> 280 Central Avenue 
> Fredonia, NY  14063
> ************************************* 
> 
> _       _                      
> 
> On Wed, Nov 14, 2018 at 9:05 AM, Andreas Neumann <a.neumann at carto.net> wrote:
> 
> Hi Mike, 
> 
> Perhaps you could use the "inverted polygon" renderer to cover/hide areas outside your area of interest? 
> 
> See https://docs.qgis.org/testing/en/docs/user_manual/working_with_vector/vector_properties.html#inverted-polygon-renderer [1] or https://www.youtube.com/watch?v=MHhYDdTC2vg [2]  
> 
> By using this symbology technique you are not actually clipping the data, but hide areas ouside a defined polygon "on-the-fly". 
> 
> Hope this helps, 
> 
> Andreas 
> 
> On 2018-11-14 14:42, Michael Jabot wrote: 
> I am trying to clip a basemap to a polygon and am struggling. I have tried to follow suggestions from others about doing this but have not been able to make it work. 
> 
> What I am trying to do is use the portion of the basemap for the region in Composer 
> 
> Thank you in advance for any suggestions 
> 
> Mike Jabot
> 
> ************************************* 
> Michael Jabot, Ph.D.
> Professor, Science Education 
> US Partner - _GLOBE Program_ 
> NASA Earth Ambassador
> Director, _Institute for Research in Science Teaching_
> The State University of New York at Fredonia
> 
> 716.320-0189 (Google Voice) 
> jabot at fredonia.edu 
> E250 Thompson Hall
> 280 Central Avenue [3] 
> Fredonia, NY [3] 14063 [3]
> ************************************* 
> 
> _       _                      
> 
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Links:
------
[1]
https://docs.qgis.org/testing/en/docs/user_manual/working_with_vector/vector_properties.html#inverted-polygon-renderer
[2] https://www.youtube.com/watch?v=MHhYDdTC2vg
[3]
https://maps.google.com/?q=280+Central+Avenue+%0D%0A+Fredonia,+NY++14063&entry=gmail&source=g
[4] https://lists.osgeo.org/mailman/listinfo/qgis-user
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