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I am working on a layer of buildings indicating the height of these.

I am looking for a method that would allow me to select only contiguous (or neighboring) buildings of different heights (see 1 and 2).

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The goal is to locate potential places of vertical densification (see 3).

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If someone has an idea... I couldn't find anything on the site.

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    You have tags for QGIS, Python, R and PostGIS but do not mention which of these is the one software you wish to ask about in this particular question or what you have tried with that prior to asking your question. If it’s Python or R then please include a code attempt.
    – PolyGeo
    Jan 15 at 0:16
  • Hello, yesterday I placed several tags alluding because I had no lead, nor any code to move forward. but that was yesterday.
    – fcka
    Jan 15 at 22:33

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