1. Description
The DEX field format is used by the software Flux, for electromagnetic and thermal simulations, developed by Cedrat.
The main features of this format are:
- It can only store a single field.
- It contains node coordinates and field values.
- It can only store fields at nodes.
- It can store values over a specific region of the mesh.
- All values are given by double precission floats.
2. Features supported by feconv
- FEconv only supports scalar and vector fields with real values, complex fields are not allowed.
- FEconv only supports fields over the whole mesh; it means that the number of nodes among mesh and field must agree.
- To avoid problems derived of units and scaling, FEconv will ignore DEX coordinates when reading.
- In order to mantain the consistence, the ordering of node coordinates must agree among the field and the mesh data.
3. Data structure
DEX file contains a header between # characters with the name of the piece an the field, the number of reals, components and points. After the header, a row for each point; each row contains coordinates at first an then values.
Here an example of DEX file with a 3-comp vector field:
# NAME = PIECE FORMULA = mGradT NB_REAL = 1 NB_COMP = 3 NB_POINT = 25419 # 16.8621677515026 32.8775510204082 0 -4612.18830812659 31808.9451403159 0 16.8621677515026 32.8316326530612 0 -4634.63895501794 32281.6593450258 0 16.8621677515026 32.7857142857143 0 -4659.58374690964 32756.7936736067 0 16.8621677515026 32.7397959183673 0 -4683.17968487141 33232.0115087418 0 16.8621677515026 32.6938775510204 0 -4705.4356971091 33708.4885003283 0 ...