On Jul 19, 3:39 pm, "David Joyner" <[EMAIL PROTECTED]> wrote:
> On Sat, Jul 19, 2008 at 6:10 PM, q10 <[EMAIL PROTECTED]> wrote:
>
> > Hello:
>
> > It has come to my attention that SAGE does not have a units-conversion
> > program component (maybe it has; if it does, please show me). I
> > recommend adding the GPLed unit conversion program called ConvertAll
> > (http://www.convertall.bellz.org/) I believe it is written with
> > Python, so integration of it into SAGE should not be too difficult.
>
> From the above webpage:
>
> "ConvertAll is free software; you can redistribute it and/or modify it
> under the terms of the GNU General Public License as published by the
> Free Software Foundation; either Version 2 of the License, or (at your
> option) any later version.
>
> ...
>
> ConvertAll requires the following libraries:
>
> * Qt (Version 4.1 or higher - see Trolltech for more information)
Qt itself is currently considered a deal breaker in the core of Sage
> * Python (Version 2.3 or higher)
> * PyQt (Version 4.0 or higher - see Riverbank for more information)"
>
> Requiring Qt might be a problem. However, I don't see why a units-conversion
> package requires a graphics library like Qt. Indeed, the web site says
>
> "Command line options are available to do conversions without the GUI."
Yeah, it seems that the GUI should be the optional thing. Qt and PyQt
introduce a massive amount of overhead for something that should be a
nice and self contained little library.
>
> > It seems that SAGE is also missing a geometry sketchpad component. It
> > would be nice to add the GPLed 2D/3D geometry sketchpad program known
> > as Geogebra (http://www.geogebra.org).
>
> This has been discussed before. I think it has serious licensing
> incompatibility issues and also uses java.
Yeah, the license issue is the killer here.
> > Finally, there is a very good graphing program known as K3DSurf
> > (http://k3dsurf.sourceforge.net/) that makes very good 3D/4D/5D graph
> > models. Please consider adding this program into SAGE as well.
>
> Were you able to download and compile the source code for this?
> The website (or my computer) was very slow for me, so I gae up looking.
> If you did so, what OS did you use? Do you know the license for k3dsurf?
>
>
>
> > Thanks for hearing my suggestions,
> > Please reply,
> > -q10
Cheers,
Michael
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