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gfscompare2D, gfscompare3D - computes the difference between the solutions in FILE1 and
FILE2 for variable VAR.


gfscompare [OPTION]FILE


This manual page documents briefly the gfscompare command.


These programs follow the usual GNU command line syntax, with long options starting with
two dashes (`-'). A summary of options is included below.

-x, --mixed
Compute error only in mixed cells.

-m V, --min=V
Set minimum of color scale to V (used with -S).

-M V, --max=V
Set maximum of color scale to V.

-a, --abs
Output the absolute value of the error field.

-C, --constant
Apply a constant shift to one of the field, minimizing the error between the two
fields (useful for pressure).

-w, --not-weighted
Do not use area-weighted norm estimation.

-c, --centered
Use error estimation for cell-centered variables.

-p P, --period=P
Shifts FILE1 by P along the x axis.

-H, --histogram
Output (error,volume) pairs for each cell used to compute the error norms.

-o, --output
Output a GTS representation of the error field.

-S, --squares
Output an OOGL representation of the error field.

-G, --gnuplot
Output a gnuplot representation of the error field.

-t, --triangulate
Use center of mass triangulation.

-l, --log
Output the log10 of the absolute value of the error field.

-f L, --full=L
Compare only leaf cells descendants of a cell full at level L or all full leaf
cells if L = -1.

-r, --refined
Display error norm on the finest grid.

-n, --nocheck
Do not check solid fractions.

-g C, --gradient=C
Use the C component of the gradient of VAR.

-v, --verbose
Display difference statistics and other info.

-h, --help
Display the help and exit.

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