lib2geom1.1.0 1.1-2~bpo20.04.1 (amd64 binary) in ubuntu focal

 2Geom is a C++ 2D geometry library geared towards robust processing of
 computational geometry data associated with vector graphics. The primary
 design consideration is ease of use and clarity. It is dual-licensed
 under LGPL 2.1 and MPL 1.1.
 .
 The library is descended from a set of geometric routines present in
 Inkscape, a vector graphics editor based around the Scalable Vector
 Graphics format, the most widespread vector graphics interchange format
 on the Web and a W3C Recommendation. Due to this legacy, not all parts
 of the API form a coherent whole (yet).
 .
 Rendering is outside the scope of this library, and it is assumed
 something like libcairo or similar is employed for this. 2geom
 concentrates on higher level algorithms and geometric computations.
 .
 This package contains the shared library.