[gl2ps] text alignment for ps/pdf

[Shai Ayal]

Hi all

first, thank you for this very impressive library. I use it in OctPlot, 
a handle graphics add-on for the Octave language. you can find more 
about it on

http://sourceforge.net/projects/octplot/

Since octplot uses OpenGL to draw, gl2ps has been just the library to 
output quality ps graphics which I think are essential to any serious 
plotting package.

The only missing feature for me is text alignment for ps/pdf output, 
like what is available in LaTeX output. Since I know absolutely nothing 
about ps, It would take me ages to add this feature. Can someone give it 
a try ?

A good place to start would be the gnuplot postscript terminal code, 
also available on sourceforge. The problem is that that code is not 
GPL'd. The do have ps macros for left, right and center alignment.

Thank you in advance for any time you choose to spend on this

Shai Ayal