Grass GUI (was Re: [GRASS5] Problems with vector import, and a suggestion)

Radim Blazek radim.blazek at
Fri Feb 8 20:16:41 EST 2002

On Thursday 07 February 2002 22:04, Glynn Clements wrote:
> > Well, I like the idea of postscript.  The only drawback I see is that
> > poor performance in redrawing are to be expected if you have a lot of
> > lines to draw, and that you must include a postscript interpreter (or
> > call an external one, which is also not very good for performances)
> Well, obviously the interpreter would be either Ghostscript (for
> screen display, image creation, and printing to non-PostScript
> printers), or the one which is built into a PostScript printer.
> As for performance, the overhead of sending PostScript to an external
> process is trivial compared to the actual processing and rendering
> (which occurs regardless of whether the interpreter is external).
> Rendering complex geometry is expensive however you do it.

I share the fear of performance. I have tested the same vector:
d.vect     2s
gv           5s
It is more than 100%. Do you have any trick how to get at least the
same speed? 


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