Glossary
This page gives definitions of the words commonly used in the RINGMesh project.
Base objects
 Point  A position in space: (x,y) in 2D or (x,y,z) in 3D.
 Segment  Part of a line bounded by two distinct points.
 Polygon  Part of a plane bounded by a finite number of nonintersecting segments closing in a loop.

Polyhedron  Part of a space bounded by a finite number of nonintersecting polygons defining an interior and an exterior.

Nsimplex  The convexhull of N+1 points
 Point: 0simplex
 Segment: 1simplex
 Triangle: 2simplex
 Tetrahedron: 3simplex
Elements of a mesh
 Mesh cell  A polyhedron of a volumetric mesh.
 Mesh polygon  A polygon of a surface mesh.
 Mesh edge  A segment of a linear mesh.

Vertex  A corner point of a mesh cell, a mesh polygon or a mesh edge.

Facet  A (N1) boundary of a mesh element
 A face of a mesh cell
 An edge of a mesh polygon
 A vertex of a mesh edge
Mesh: Set of elements
 Structured mesh  A mesh with regular connectivity meaning that each vertex is connected to the same number of vertices.
 Unstructured mesh  A mesh with any connectivity between vertices.
Entity
Notion
 Topology  Connectivity information between entities.