---
name: "gfs2oogl2D"
section: "1"
platform: "linux"
package: "gerris"
version: "20131206+dfsg-21+b3"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/gfs2oogl2D"
---

# gfs2oogl2D(1)

converts a Gerris simulation file to other (graphical) formats.

## NAME

gfs2oogl2D, gfs2oogl3D - converts a Gerris simulation file to other (graphical) formats.

## SYNOPSIS

**gfs2oogl** \[OPTION\]*\<*GFS\_FILE

## DESCRIPTION

This manual page documents briefly the **gfs2oogl** command.

## OPTIONS

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

- **-u V, --iso=V**

  Outputs a GTS file isosurface for value V the variable needs to be specified using -c.

- **-f D, --stream=D**

  Draw evenly-spaced streamlines (D is the spacing).

- **-I M, --dmin=M**

  Controls length of evenly-spaced streamlines default is 0.5.

- **-O M, --maxcost=M**

  Controls compression of streamlines (default is 2e-7).

- **-b x,.., --box=x,y,..**

  Specify bounding box for streamline calculation.

- **-j, --closed**

  Outputs only closed streamlines.

- **-p F, --profile=F**

  Output list of values for coordinates defined in F.

- **-o, --mixed**

  Output text values in mixed cells only.

- **-L L, --level=L**

  Use cells at level L only.

- **-i, --reinit**

  Reinitializes refinement and solid fractions.

- **-e, --merged**

  Draw boundaries of merged cells.

- **-S, --squares**

  Draw (colored) squares.

- **-g, --gnuplot**

  Output gnuplot data.

- **-x VAL, --sx=VAL**

  outputs a GTS surface, cross section for x = VAL of the scalar variable.

- **-y VAL, --sy=VAL**

  outputs a GTS surface, cross section for y = VAL of the scalar variable.

- **-z VAL, --sz=VAL**

  outputs a GTS surface, cross section for z = VAL of the scalar variable.

- **-s S, --surface=S**

  outputs the surface defined by file S (or the solid surface is S is equal to \`solid').

- **-V S, --vector=S**

  output an OOGL representation of the velocity vector field in the mixed cells.

- **-l F, --streamlines=F**

  draw streamlines starting from each point defined in file F.

- **-C F, --cylinder=F**

  draw stream cylinders starting from each point defined in file F.

- **-R F, --ribbon=F**

  draw stream ribbons starting from each point defined in file F.

- **-r**

  refines the solid surface according to the local resolution.

- **-c V, --color=V**

  color surfaces, streamlines etc... according to the.

- **-m V, --min=V**

  set minimum scalar value to V.

- **-M V, --max=V**

  set maximum scalar value to V.

- **-v, --verbose**

  display statistics and other info.

- **-h, --help**

  display the help and exit.

## AUTHOR

gfs2oogl was written by Stephane Popinet \<s.popinet@niwa.co.nz\>.

This manual page was written by Ruben Molina \<rmolina@udea.edu.co\>, for the Debian project (but may be used by others).