VCLib provides a set of prebuilt mesh data structures:

vcl::TriMesh: a simple Triangle Mesh data structure, allows to store a container of Vertices, a container of Triangles and some other components;
vcl::PolyMesh: a Polygon Mesh data structure, allows to store a container of Vertices, a container of Polygons (no constraints on the number of vertices of each polygon) and some other components;
vcl::EdgeMesh: a Mesh data structure that allows to store a container of Vertices, a container of Edges (segments), and some other components;
vcl::PointCloud: a Mesh data structure that stores just a container of Vertices and some other components;
(ToDo: QuadMesh)
(ToDo: volumetric data structures)

All these meshes store scalar values using double floating-point precision, but the library provides also the alternative with the f suffix that stores scalars using single floating point precision (vcl::TriMeshf, vcl::PolyMeshf, ...).

All the prebuilt data structures are documented in the Meshes group.

All these data structures are implemented by customizing the vcl::Mesh data structure, which is a highly customizable mesh data structure.