[Gambas-user] gb.util: Unit conversions

Tobias Boege taboege at ...626...
Mon Apr 27 07:45:22 CEST 2015


On Mon, 27 Apr 2015, adamnt42 at ...626... wrote:
> On Sun, 26 Apr 2015 09:34:42 +0200
> Charlie Reinl <Karl.Reinl at ...2345...> wrote:
> 
> > Am Samstag, den 25.04.2015, 23:13 +0200 schrieb Tobias Boege:
> > > On Sat, 25 Apr 2015, Beno?t Minisini wrote:
> > > > Le 20/04/2015 23:28, Tobias Boege a ?crit :
> > > > > Hi Benoit,
> > > > >
> > > > > I have a quick feature suggestion for gb.util: when working with components
> > > > > like gb.cairo which partially uses millimeters (e.g. CairoPdfSurface._new)
> > > > > to measure things, it would be nice to have a global module from somewhere
> > > > > official which implements those unit conversions.
> > > > >
> > > > > I am myself always uncertain with "graphical" units and if they could under
> > > > > any circumstances depend on resolutions or not. A bunch of working methods
> > > > > would be nice and gb.util is the right place for that it seems.
> > > > >
> > > > > Regards,
> > > > > Tobi
> > > > >
> > > > 
> > > > I don't see what conversion you need exactly. Can you be more precise?
> > > > 
> > > 
> > > Things like px <-> mm <-> in. I'm sure there are a lot more unit conversions
> > > that people may find useful. Although I'm not sure anymore if it's a good
> > > idea to put those into a component, because it's basically multiplying by
> > > some constant... The thing is simply that these constants are not easy to
> > > memorise and sometimes they depend on some resolution or other factors of
> > > which people like me aren't aware. A conversion function in a component,
> > > once written by a clever person would come to the rescue then.
> > > 
> > 
> > Salut,
> > 
> > what's about a conversions page on gambaswiki.org?
> > That would be one page about measure conversion more in the net, but
> > easy to find for gambas coder.
> > 
> Conversely, why re-invent the wheel?
> 
> http://www.unitconversion.org/index.html
> 

Yes, I think I was being too lazy.

Thanks Fabien for the project. The Convert class looks exactly like what I
had in mind.

Regards,
Tobi

-- 
"There's an old saying: Don't change anything... ever!" -- Mr. Monk




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