Talk:Vector overlay

[Untitled]
I created this page because it seemed to be a gaping hole in the coverage of GIS on Wikipedia. It's a good start, but it could use further enhancement:
 * More detailed history? I once saw a conference talk showing McHarg's transparent overlay technique in a Nazi-era German agriculture journal, but I can't find it now.
 * More details on the algorithm, including a good citation
 * Implementation in other software, such as spatial SQL extensions
 * More about overlay with lines and points.
 * An applications section with several examples
 * Should Spatial join and Spatial query be part of this page, or should they have their own pages? They are not anywhere else and they are overlay in a sense.Bplewe (talk) 01:20, 27 October 2021 (UTC)