NAME¶
gpiv_s-avg - Spatial statistics of PIV data.
SYNOPSIS¶
gpiv_s-avg [
-h |
--help] [
-p |
--print] [
-s] [
-no_s] [
-v |
--version] [
filename]
<
stdin >
stdout
DESCRIPTION¶
gpiv_s-avg reports the spatial global mean velocities and variances in x
and y-direction of a PIV data stream. Only input data of which the peak number
is not equal to -1 are taken into account.
The parameters read from the configuration resources (containing the key
POST) may be overruled by the command line options, as explained below.
Options¶
- -h | --help
- On-line help.
- -p | --print
- Prints parameters, command line options and input and
eventually filenames to stdout. The output is identic of
filename.par, in case -f is used.
- -s
- Subtracts the mean x-and y-particle displacements from the
input data.
- -no_s
- Suppresses subtracting the mean values from the input data.
- -v | --version
- Prints version information on standard output, then exits
successfully.
- [-z dx0 dy0]
- zero offset of displacement or velocity estimators.
- filename
- Input PIV file. Overrides stdin and stdout. The output will
be written to filename.sa.piv. Parameters are stored in
filename .par and may be used for future use by including
them in ./gpivrc.
SEE ALSO¶
gpivtools
NOTES¶
AUTHOR¶
Gerber Van der Graaf
BUGS¶
The program has been tested for PIV data. So far, no bugs have been found.