Multimap is an extensible application to create, visualize and analyze spatial data on maps.
Maps can be both geographical and non-geographical maps (for example maps created from biological images).

MultiMap was originally created by Gherardo Varando.
MultiMap repository.

Varando, G., Benavides-Piccione, R., Muñoz, A., Kastanauskaite, A., Bielza, C., Larrañaga, P., & DeFelipe, J. (2018).
MultiMap: A tool to automatically extract and analyze spatial microscopic data from large stacks of confocal microscopy images.
Frontiers in Neuroanatomy, 12, 37.
https://www.frontiersin.org/articles/10.3389/fnana.2018.00037