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Reading a part body through CAA

Different ways to read a catia part

  1. Topology based reading
  2. Feature based reading

1.Topology based reading

1.1WHAT IS TOPOLOGY?

 

  • Topology is a logical information describing the boundary of geometric objects.
  • Topology allows to represent objects, by detailing their boundaries and the connections between their different parts

1.2 BASIC TOPOLOGICAL OBJECTS IN CGM

The topology manages three types of entities

1.2.1 Cell

A cell is a connected limitation of underlying geometry. There are 4 types of cells according to the dimension in the space in which they lie

  • Vertex
  • Edge
  • Face
  • Volume

Different types of cells and its associated geometry are shown below

1.2.2 Domain
  • A domain is a set of connected cells grouped to define boundaries.
  • A domain is a set of cells of dimension [n] connected by cells of dimension [n-1].
  • Domains define manifold components inside a non-manifold objects

 

1.2.3 Body
  • A body is a set of domains not necessarily connected.