xs2ps export graphics to PS

## Syntax

                xs2ps(win_num, file_name [,orientation])
                xs2ps(fig, file_name [,orientation])

## Arguments

win_num

  an integer, ID of the figure to export.

fig

  handle of the figure to export.

file_name

  a string, name of the exported file.

orientation

  an optional string, with possible values `'portrait'` or `'landscape'`. The default value is `'portrait'`.

## Description

`xs2ps` exports the display of a graphic window into a PostScript file.

Note that the generated Postscript file cannot be directly printed since it requires a header file. The function `xs2eps` can be used to directly produce an Encapsulated Postscript file with a header.

## Examples

    scf(0);
    plot2d();
    // Postcript export
    filename='foo.ps';
    xs2ps(0,filename);

## See also

- `figure_size` property in figure_properties
- toprint
- printfigure
- xs2bmp
- xs2gif
- xs2jpg
- xs2png
- xs2ppm
- xs2eps
- xs2pdf
- xs2svg
- xs2emf