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I am using QGIS and I'd like to know how I can make this kind of image overlay using as base a polygon shapefile of my city's blocks, just like in the following images.

enter image description here

enter image description here

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1 Answer 1

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  1. Create a new layer, draw a polygon covering your area
  2. Difference geoprocessing tool, with your polygon as input, and the blocks as Overlay. Set a dark grey or black symbol

Now you have a polygon with holes where your blocks are.

  1. Create a new print layout
  2. Add picture, your raster image
  3. Add map, uncheck background to see the image through the holes. enter image description here

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