GPIV_SSTRAIN(1)
NAME
gpiv_sstrain - Calculates the shear strain from PIV data.
SYNOPSIS
gpiv_sstrain [-d N] [-h | --help] [--no_g ] [-p | --print] [-g | --g] [-v | --version] [filename] < stdin > stdout
DESCRIPTION
gpiv_sstrain calculates the shear strain from PIV data. You can choose
from several differential schemes: central differentiation, least
squares and Richardson extrapolation. The output can be generated as
ASCII data containing four columns or as GNUPlot Data format that
allows to view/print the data as contour plots.
The configuration parameters (containing the POST key) may be overruled
by the command line options, as explained below.
Options
- -d N Differential type to be used: central difference (N=0), least
- squares (N=1), Richardson interpolation (N=2), circulation method (N=3)
- -h | --help
- On-line help
- -p | --print
- Print parameters, command line options and eventually used input and output filenames to stdout. The output is identic of filename.par, in case filename is used.
- -g Show contour plot of the output with gnuplot.
- --no_g Suppresses to show contour plot of the output with gnuplot.
- -v | --version
- Print version information on standard output, then exit successfully.
- filename Input PIV data file. Overrides stdin and stdout. The
- output will be written to filename.sstr. Parameters are stored in filename.par and may be used for future use by including them in ./gpivrc.
SEE ALSO
gpivtools
AUTHOR
- Gerber Van der Graaf