Bernese GPS Software Version 5.0 - Bernese GNSS Software

19. Bernese Processing Engine (BPE)
19.5.4 Script Parameters and BPE Variables
The remaining two panels define the parameters of the user scripts and the so-called BPE
variables. The parameters can be specified in the panel shown in Figure 19.7. Up to nine
parameters can be defined which are available in the Perl user scripts as $$bpe{PARAM1},
$$bpe{PARAM2}, etc. (resp. as environment variables ${PARAM1}, ${PARAM2}, etc., in shell
user scripts). However, in case of a master script the parameter $$bpe{PARAM1} is reserved
and contains the name of the control file. This is to maintain compatibility with the old
BPE. New master scripts should use the variable $$bpe{CONTROL FILE} that has the same
value.
No PCF parameters can be defined for the slave scripts. The slave scripts should be given
all necessary information through the variable $$bpe{CONTROL FILE LINE}. We have stated
already that this variable contains exactly one line (different for each parallel running slave)
of the control file. In addition to the information specific for the individual slave scripts
(e.g., name of baseline to be processed) the master script may add the values of the BPE
variables PARAM2, PARAM3, etc., to $$bpe{CONTROL FILE LINE} as blank-delimited list.
These parameters are then available in the slave script as $$bpe{PARAM2}, $$bpe{PARAM3},
etc. See Section 19.6.4 for an example.
In the last panel (Figure 19.8) the BPE variables may be defined. These are additional
variables that may be used in user scripts as well as in the program input files. The user
may define the values of the BPE variables when executing the BPE. He may, e.g., specify
a solution ID which is part of the result filenames.
Figure 19.7: Process Control File, parameters for scripts.
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