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2.4 General presentation of module APNOP3

Module APNOP3  links and executes all the modules acting on the NOPO data structure containing a three-dimensional mesh in the view of manipulating this mesh. It furthermore enables the user to call certain mesh creation modules (those that do not require much data).

The operations possible may be arranged into 6 logical levels:

1. Preparation: Capturing the characteristic points and 2D generic meshes;
2. Generation: Calling the mesh generators (simple case);
3. Manipulation: Geometric modification of meshes created previously or elsewhere;
4. Definition of the nodes: Creation of the non-vertex nodes, if necessary;
5. Renumbering: Minimizing the size of the matrices corresponding to the meshes created;
6. Save on file: Storing 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 may be jumped;
• Preprocessor APN3XX  enables us to create the data required by module APNOP3  easily by indicating the operations to perform.