• Completely menu-driven.
• Versatile visualisation tools including rendering, pan, zoom, rotations, etc.
• Multiple windows
  Associative data structures so that the complete geometry database is updated whenever something is altered.
  All analysis data can be defined on geometrical entities before the mesh is actually created.
• User-defined and customable menus and interfaces for users own simulation software.
  Complete set of tools for quick geometry definition.
  Quick and easy definition of geometry with easy-to-use verification/visualisation tools.

GiD has numerous mesh generation options:

Structured meshes can be easily defined by the user. These include:

• 2D triangular and quadrilateral meshes
• 3D hexahedra, tetrahedra or prisma meshes

Semi-structured meshes (structured only in one direction of the volume). These include:

• 3D hexahedra, tetrahedra or prisma meshes meshes

Unstructured meshes can be automatically generated based on quality and spacing criteria defined by the user. These include:

• 2D triangular and quadrilateral meshes
• 3D tetrahedral meshes

Degree of elements can be:

• Linear: 2 and 3 nodes
• Triangle: 3 and 6 nodes
• Quadrilateral: 4,8 and 9 nodes
• Tetrahedral: 4 and 10 nodes
• Hexahedra: 8, 20 and 27 nodes
• Prisma: 6 and 15 nodes

All of the nodes are contained inside the real geometry. So, the higher degree elements are curved.

Mesh generation can be carried out after all attributes and data have been assigned to geometrical entities.

GiD allows the generation of large meshes in a fast and efficient manner and has the ability to visualise various meshes before selecting the one desired.