I work with QGIS 3.28. As part of an atlas, I have a main map object map 1 and a small map object map 2 (small scale) for location. The layer used for the atlas iteration is a polygon layer. The footprints/areas of my polygon layer vary greatly from one another. In the properties of the map 2 object, I activate the overview pointing to map 1 in order to display the extent/spatial footprint of my map 1 on this map 2. The concern is that the extent of my map 1 being variable (scale not fixed), for my polygon layer which have small spatial footprints (map 1 very zoomed-large scale), the spatial footprint of my map 1 is no longer visible on my map 2 What would be the solution to always make this overview of my map 1 visible on this map 2? Is there a way to exaggerate the extent of map 1 in the overview?
If not, I had thought of the style/geometry generator solution on my atlas iteration layer (for example, an expression that would generate a centroid and a 500m buffer from the polygons?). Are there any other solutions?
Below a screenshot. Left: no problem, the overview allows seeing the map 1 extent. Right: the scale is too high, and the overview does not succeed in displaying the map 1 extent.