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1.4.1 General presentation

Module APNOPO  links and executes all the modules acting on the NOPO data structure containing a two-dimensional mesh.

The operations possible may be arranged into 6 logical levels:

1. Preparation: Capturing of the characteristic points and lines of the mesh, definition of possible curves;
2. Generation: Calling of the mesh generators;
3. Manipulation: Geometric modification of meshes created previously;
4. Definition of the nodes: Creation of the non-vertex nodes, if necessary;
5. Renumbering: Minimization of the size of the matrices corresponding to the meshes created;
6. Save on file: Store the meshes created on file.

Remark:

• The level numbers correspond to a logical order, except for level 6 which can be executed at any time;
• Certain levels can be jumped;
• The preprocessor APNOXX enables us to create the data required by module APNOPO in an easy manner.