Tools to convert, debug and - FEFlow

T is the accumulated time value. It will computed starting from the start_time and will be
increased by every time value in the definition_file:
T = start_time + time1 + time2 + ... + timeQ (for Q-th power function entry)
F is a accumulated function value. It starts with the reference value from the input trp_file. For
every timestep it will be increased (plus-operation) by the current timestepvalue that will be
compzted according the operation_string:
F = reference_value + F1 + F2 + ... + FQ (for Q-th power function entry)
Example:
‘opera_trp’
Usage: opera_trp [-o ‘operation_string’] trp_file1 trp_file2
opera_trp is usefull to perform operations (e.g. difference computation) on point data exported
from the FEFLOW mesh. These data will be written always in the same order (the internal
indexing, visible in the mesh inspector).
opera_trp works on 2 trp-files with the same points (identical coordinates but arbitrary function
values) in the same order. It takes two data lines from file 1 and 2 and writes out the coordinates
from file 1 together with the value F computed by the operation string.
The operation_string can define a computation using the function value from trp_file1
represented as ‘F1’) or from the first corresponding point in trp_file2, (represented as the
character ‘F2’.)
- Operation examples with a constant value, e.g.:
‘F = F1+10.0’ ‘F = (F1+F2)/2.0’ ‘F = 2.0*F1 + F2’
- Operation examples with functions (atan2, cos, exp, int, log, rand, sin, sqrt,
...see manual pages for ‘nawk’), e.g.:
‘F = log (F1-F2)’ ‘F = 2.0 * sin (F1 - 3.1415)’ ‘F = sqrt(F1*F2)’
The default value of operation_string is ‘F = F1’, which is identical with no change of the value of
the reference point.