libmapnik-dev - 3.1.0+ds-1 main

Mapnik is an OpenSource C++ toolkit for developing GIS
(Geographic Information Systems) applications. At the core is a C++
shared library providing algorithms/patterns for spatial data access and
visualization.
.
Essentially a collection of geographic objects (map, layer, datasource,
feature, geometry), the library doesn't rely on "windowing systems" and
is intended to work in multi-threaded environments
.
This package contains the development headers, API documentation, and
build utilities.