The format of a TRANSFER file is dictated by the TRANSFER output format, and contains the following data.
1) A header containing an identifying section listing the FlexPDE version, generating problem name and run time, and plotted variable name or function equation. This header is enclosed in comment brackets, { ... }.
2) A file identifier "FlexPDE transfer file", and the problem title.
3) The number of geometric dimensions and their names.
4) The finite element basis identifier from 4 to 10, meaning:
| • | 4 = linear triangle (3 points per cell) |
| • | 5 = quadratic triangle (6 points per cell) |
| • | 6 = cubic triangle (9 points per cell) |
| • | 7 = cubic triangle (10 points per cell) |
| • | 8 = linear tetrahedron (4 points per cell) |
| • | 9 = quadratic tetrahedron (10 points per cell) |
| • | 10 = cubic tetrahedron (20 points per cell) |
5) The number of degrees of freedom (points per cell as above).
6) The number of output variables and their names
Each distinct material type in the exported problem is represented by a separate section in the TRANSFER file. Each section consists of:
7) The number of nodes
8) The nodal data, containing one line for each node with the following format:
| • | two or three coordinates and as many data values as specified in (6). |
| • | a colon (:) |
| • | the global node index |
| • | the node type (0=interior; 1=joint; 2=edge; 3=face; 4=exterior) |
| • | the type qualifier (region number, joint number, edge number or face number) |
9) The number of cells.
10) The cell connectivity data, one line per cell, listing the following:
| • | the geometric basis (as in 4) |
| • | the node numbers (local to the current material block) which comprise the cell. The count of these node numbers is controlled by (5). |
| • | a colon (:) |
| • | the global cell number |
| • | the logical region number |
| • | the material number |
The node numbers are presented in the following order:
